Adapt to skalibs-2.5.0.0

44 files changed, 305 insertions, 356 deletions

diff --git a/configure b/configure
index e6a3d65..2a14808 100755
--- a/configure
+++ b/configure
@@ -313,6 +313,7 @@ tryflag CPPFLAGS_AUTO -Werror=implicit-function-declaration
 tryflag CPPFLAGS_AUTO -Werror=implicit-int
 tryflag CPPFLAGS_AUTO -Werror=pointer-sign
 tryflag CPPFLAGS_AUTO -Werror=pointer-arith
+tryflag CPPFLAGS_AUTO -Wno-unused-value
 tryflag CFLAGS_AUTO -ffunction-sections
 tryflag CFLAGS_AUTO -fdata-sections
 
diff --git a/doc/index.html b/doc/index.html
index 48fed00..a0d7d6c 100644
--- a/doc/index.html
+++ b/doc/index.html
@@ -57,9 +57,9 @@ requirement if you link against the shared version of the s6-dns
 libraries. </li>
  <li> If you want to build the secure communication tools:
   <ul>
-   <li> Either <a href="http://libressl.org/">LibreSSL</a> version 2.4.4
+   <li> Either <a href="http://libressl.org/">LibreSSL</a> version 2.4.5
 or later </li>
-   <li> Or <a href="http://bearssl.org/">BearSSL</a> version 0.2
+   <li> Or <a href="http://bearssl.org/">BearSSL</a> version 0.3
 or later. <strong>This is experimental.</strong> </li>
   </ul> The chosen library is a build-time requirement, and also a
 run-time requirement if you link against its shared version. </li>
diff --git a/doc/libs6net/ident.html b/doc/libs6net/ident.html
index f058370..fad581f 100644
--- a/doc/libs6net/ident.html
+++ b/doc/libs6net/ident.html
@@ -47,7 +47,7 @@ any kind of authentication or secure operation.
 <h3> Main interface </h3>
 
 <p>
-<code> int s6net_ident_client (char *s, unsigned int max, ip46_t const *remoteip, uint16 remoteport, ip46_t const *localip, uint16 localport,
+<code> ssize_t s6net_ident_client (char *s, size_t max, ip46_t const *remoteip, uint16_t remoteport, ip46_t const *localip, uint16_t localport,
 tain_t const *deadline, tain_t *stamp) </code>
 </p>
 
@@ -97,7 +97,7 @@ from the server by *<em>deadline</em>, then the call is aborted and returns
 <h3> Low-level functions </h3>
 
 <p>
-<code> int s6net_ident_reply_get (char *s, ip46_t const *ra, uint16 rp, ip46_t const *la, uint16 lp,
+<code> ssize_t s6net_ident_reply_get (char *s, ip46_t const *ra, uint16_t rp, ip46_t const *la, uint16_t lp,
 tain_t const *deadline, tain_t *stamp) </code>
 </p>
 
@@ -110,7 +110,7 @@ Returns -1 if an error occurs, or the number of bytes written into <em>s</em>.
 </p>
 
 <p>
-<code> int s6net_ident_reply_parse (char const *s, uint16 rp, uint16 lp) </code>
+<code> ssize_t s6net_ident_reply_parse (char const *s, uint16_t rp, uint16_t lp) </code>
 </p>
 
 <p>
diff --git a/doc/upgrade.html b/doc/upgrade.html
index 1cbd9b7..22c86e1 100644
--- a/doc/upgrade.html
+++ b/doc/upgrade.html
@@ -21,7 +21,8 @@
 <h2> in 2.3.0.0 </h2>
 
 <ul>
- <li> BearSSL dependency bumped to 0.2. </li>
+ <li> LibreSSL dependency bumped to 2.4.5. </li>
+ <li> BearSSL dependency bumped to 0.3. </li>
  <li> skalibs dependency bumped to 2.5.0.0. </li>
  <li> execline dependency bumped to 2.3.0.0. </li>
  <li> s6 dependency bumped to 2.5.0.0. </li>
diff --git a/src/clock/s6-clockadd.c b/src/clock/s6-clockadd.c
index 990f3ba..cd0dcbb 100644
--- a/src/clock/s6-clockadd.c
+++ b/src/clock/s6-clockadd.c
@@ -1,7 +1,7 @@
 /* ISC license. */
 
 #include <skalibs/sgetopt.h>
-#include <skalibs/uint.h>
+#include <skalibs/types.h>
 #include <skalibs/allreadwrite.h>
 #include <skalibs/strerr2.h>
 #include <skalibs/tai.h>
@@ -19,7 +19,7 @@ int main (int argc, char const *const *argv)
     subgetopt_t l = SUBGETOPT_ZERO ;
     for (;;)
     {
-      register int opt = subgetopt_r(argc, argv, "fe:", &l) ;
+      int opt = subgetopt_r(argc, argv, "fe:", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
diff --git a/src/clock/s6-sntpclock.c b/src/clock/s6-sntpclock.c
index 22c6727..1044be5 100644
--- a/src/clock/s6-sntpclock.c
+++ b/src/clock/s6-sntpclock.c
@@ -1,17 +1,14 @@
 /* ISC license. */
 
-#include <sys/types.h>
+#include <string.h>
 #include <stdint.h>
 #include <unistd.h>
 #include <errno.h>
 #include <skalibs/error.h>
-#include <skalibs/uint16.h>
-#include <skalibs/uint32.h>
 #include <skalibs/uint64.h>
-#include <skalibs/uint.h>
+#include <skalibs/types.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/allreadwrite.h>
-#include <skalibs/bytestr.h>
 #include <skalibs/error.h>
 #include <skalibs/strerr2.h>
 #include <skalibs/tai.h>
@@ -26,12 +23,12 @@
 
 static unsigned int verbosity = 1 ;
 
-int ntp_exchange (int s, ip46_t const *ip, uint16 port, tain_t *stamps, tain_t const *deadline)
+int ntp_exchange (int s, ip46_t const *ip, uint16_t port, tain_t *stamps, tain_t const *deadline)
 {
   char query[48] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0" ;
   char answer[48] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0" ;
   tain_t starttime ;
-  uint64 ntpstamp ;
+  uint64_t ntpstamp ;
   ip46_t dummyip ;
   uint16_t dummyport ;
   ssize_t r ;
@@ -54,7 +51,7 @@ int ntp_exchange (int s, ip46_t const *ip, uint16 port, tain_t *stamps, tain_t c
   if (r < 48) return (errno = EPROTO, 0) ;
   if (((answer[0] & 7) != 2) && ((answer[0] & 7) != 4)) return (errno = EPROTO, 0) ;
   if (!(answer[0] & 56)) return (errno = EPROTO, 0) ;
-  if (byte_diff(query+40, 8, answer+24)) return (errno = EPROTO, 0) ;
+  if (memcmp(query+40, answer+24, 8)) return (errno = EPROTO, 0) ;
   stamps[0] = starttime ;
   uint64_unpack_big(answer+32, &ntpstamp) ;
   tain_from_ntp(stamps+1, ntpstamp) ;
@@ -100,7 +97,7 @@ int main (int argc, char const *const *argv)
     subgetopt_t l = SUBGETOPT_ZERO ;
     for (;;)
     {
-      register int opt = subgetopt_r(argc, argv, "fv:r:t:h:T:e:p:", &l) ;
+      int opt = subgetopt_r(argc, argv, "fv:r:t:h:T:e:p:", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
@@ -169,7 +166,7 @@ int main (int argc, char const *const *argv)
         unsigned int j = 0 ;
         for (; j < 4 ; j++)
         {
-          uint64 ntp ;
+          uint64_t ntp ;
           localtmn_t l ;
           char fmt[UINT_FMT] ;
           char fmtntp[UINT64_XFMT] ;
diff --git a/src/clock/s6-taiclock.c b/src/clock/s6-taiclock.c
index bece37d..8ea58c1 100644
--- a/src/clock/s6-taiclock.c
+++ b/src/clock/s6-taiclock.c
@@ -1,16 +1,13 @@
 /* ISC license. */
 
-#include <sys/types.h>
+#include <string.h>
 #include <stdint.h>
 #include <unistd.h>
 #include <errno.h>
 #include <skalibs/error.h>
-#include <skalibs/uint16.h>
-#include <skalibs/uint32.h>
-#include <skalibs/uint.h>
+#include <skalibs/types.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/allreadwrite.h>
-#include <skalibs/bytestr.h>
 #include <skalibs/strerr2.h>
 #include <skalibs/tai.h>
 #include <skalibs/djbtime.h>
@@ -27,7 +24,7 @@ static unsigned int verbosity = 1 ;
 
 #define N 28
 
-int tain_exchange (int s, ip46_t const *ip, uint16 port, tain_t *serversays, tain_t const *deadline)
+int tain_exchange (int s, ip46_t const *ip, uint16_t port, tain_t *serversays, tain_t const *deadline)
 {
   char query[N] = "ctai" ;
   char answer[N] ;
@@ -42,8 +39,8 @@ int tain_exchange (int s, ip46_t const *ip, uint16 port, tain_t *serversays, tai
   r = socket_recvnb46_g(s, answer, N, &dummyip, &dummyport, deadline) ;
   if (r < 0) return 0 ;
   if (r < N) return (errno = EPROTO, 0) ;
-  if (byte_diff(answer, 4, "stai")) return (errno = EPROTO, 0) ;
-  if (byte_diff(query+20, N-20, answer+20)) return (errno = EPROTO, 0) ;
+  if (memcmp(answer, "stai", 4)) return (errno = EPROTO, 0) ;
+  if (memcmp(query+20, answer+20, N-20)) return (errno = EPROTO, 0) ;
   tain_unpack(answer+4, serversays) ;
   return 1 ;
 }
@@ -72,7 +69,7 @@ int main (int argc, char const *const *argv)
     subgetopt_t l = SUBGETOPT_ZERO ;
     for (;;)
     {
-      register int opt = subgetopt_r(argc, argv, "fv:r:t:h:T:e:p:", &l) ;
+      int opt = subgetopt_r(argc, argv, "fv:r:t:h:T:e:p:", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
diff --git a/src/clock/s6-taiclockd.c b/src/clock/s6-taiclockd.c
index 0477ec5..504c4fc 100644
--- a/src/clock/s6-taiclockd.c
+++ b/src/clock/s6-taiclockd.c
@@ -1,12 +1,10 @@
 /* ISC license. */
 
-#include <sys/types.h>
+#include <string.h>
 #include <stdint.h>
-#include <skalibs/uint16.h>
-#include <skalibs/bytestr.h>
+#include <skalibs/types.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/strerr2.h>
-#include <skalibs/fmtscan.h>
 #include <skalibs/djbunix.h>
 #include <skalibs/socket.h>
 #include <skalibs/tai.h>
@@ -24,7 +22,7 @@ int main (int argc, char const *const *argv)
   PROG = "s6-taiclockd" ;
   for (;;)
   {
-    register int opt = subgetopt_r(argc, argv, "i:p:", &l) ;
+    int opt = subgetopt_r(argc, argv, "i:p:", &l) ;
     if (opt == -1) break ;
     switch (opt)
     {
@@ -43,8 +41,8 @@ int main (int argc, char const *const *argv)
   for (;;)
   {
     char packet[256] ;
-    register ssize_t r = socket_recv46(s, packet, 256, &ip, &port) ;
-    if ((r >= 20) && !byte_diff(packet, 4, "ctai"))
+    ssize_t r = socket_recv46(s, packet, 256, &ip, &port) ;
+    if ((r >= 20) && !memcmp(packet, "ctai", 4))
     {
       tain_t now ;
       packet[0] = 's' ;
diff --git a/src/conn-tools/s6-getservbyname.c b/src/conn-tools/s6-getservbyname.c
index a7ccc9d..0c60320 100644
--- a/src/conn-tools/s6-getservbyname.c
+++ b/src/conn-tools/s6-getservbyname.c
@@ -2,7 +2,7 @@
 
 #include <stdint.h>
 #include <netdb.h>
-#include <skalibs/uint16.h>
+#include <skalibs/types.h>
 #include <skalibs/buffer.h>
 #include <skalibs/strerr2.h>
 
diff --git a/src/conn-tools/s6-ident-client.c b/src/conn-tools/s6-ident-client.c
index d4876ae..1d24904 100644
--- a/src/conn-tools/s6-ident-client.c
+++ b/src/conn-tools/s6-ident-client.c
@@ -2,8 +2,7 @@
 
 #include <stdint.h>
 #include <errno.h>
-#include <skalibs/uint16.h>
-#include <skalibs/uint.h>
+#include <skalibs/types.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/strerr2.h>
 #include <skalibs/buffer.h>
@@ -27,7 +26,7 @@ int main (int argc, char const *const *argv)
     subgetopt_t l = SUBGETOPT_ZERO ;
     for (;;)
     {
-      register int opt = subgetopt_r(argc, argv, "t:", &l) ;
+      int opt = subgetopt_r(argc, argv, "t:", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
@@ -56,7 +55,7 @@ int main (int argc, char const *const *argv)
 
   {
     char buf[BUFFER_OUTSIZE_SMALL] ;
-    register int r = s6net_ident_client_g(buf, BUFFER_OUTSIZE_SMALL, &ra, rp, &la, lp, &deadline) ;
+    int r = s6net_ident_client_g(buf, BUFFER_OUTSIZE_SMALL, &ra, rp, &la, lp, &deadline) ;
     if (r < 0) strerr_diefu1sys(errno == ETIMEDOUT ? 99 : 111, "s6net_ident_client") ;
     else if (!r)
     {
diff --git a/src/conn-tools/s6-tcpclient.c b/src/conn-tools/s6-tcpclient.c
index 3085e06..47be4a7 100644
--- a/src/conn-tools/s6-tcpclient.c
+++ b/src/conn-tools/s6-tcpclient.c
@@ -1,11 +1,9 @@
 /* ISC license. */
 
-#include <sys/types.h>
+#include <string.h>
 #include <stdint.h>
 #include <errno.h>
-#include <skalibs/uint16.h>
-#include <skalibs/uint.h>
-#include <skalibs/bytestr.h>
+#include <skalibs/types.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/fmtscan.h>
 #include <skalibs/strerr2.h>
@@ -65,7 +63,7 @@ int main (int argc, char const *const *argv)
     subgetopt_t l = SUBGETOPT_ZERO ;
     for (;;)
     {
-      register int opt = subgetopt_r(argc, argv, OPTSTRING, &l) ;
+      int opt = subgetopt_r(argc, argv, OPTSTRING, &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
@@ -119,8 +117,7 @@ int main (int argc, char const *const *argv)
   {
     ip46_t ip[2][MAXIP] ;
     unsigned int j = 0 ;
-    unsigned int n[2] = { 0, 0 } ;
-    register unsigned int i = 0 ;
+    size_t n[2] = { 0, 0 } ;
     if (!**argv || ((**argv == '0') && !argv[0][1]))
     {
 #ifdef SKALIBS_IPV6_ENABLED
@@ -136,14 +133,14 @@ int main (int argc, char const *const *argv)
         if (flags.ip6 && !flags.ip4)
         {
           char ip6[MAXIP << 4] ;
-          register unsigned int i = 0 ;
+          size_t i = 0 ;
           if (!ip6_scanlist(ip6, MAXIP, argv[0], &n[0])) usage() ;
           for (; i < n[0] ; i++) ip46_from_ip6(&ip[0][i], ip6 + (i << 4)) ;
         }
         else if (!flags.ip6)
         {
           char ip4[MAXIP << 2] ;
-          register unsigned int i = 0 ;
+          size_t i = 0 ;
           if (!ip4_scanlist(ip4, MAXIP, argv[0], &n[0])) usage() ;
           for (; i < n[0] ; i++) ip46_from_ip4(&ip[0][i], ip4 + (i << 2)) ;
         }
@@ -159,7 +156,8 @@ int main (int argc, char const *const *argv)
           if (!ip46_scanlist(ip[0], MAXIP, argv[0], &n[0]))
           {
             genalloc ips = STRALLOC_ZERO ;
-            if (s6dns_resolve_aaaaa_g(&ips, argv[0], str_len(argv[0]), flags.qualif, &deadline) <= 0)
+            size_t i = 0 ;
+            if (s6dns_resolve_aaaaa_g(&ips, argv[0], strlen(argv[0]), flags.qualif, &deadline) <= 0)
               strerr_diefu4x(111, "resolve ", argv[0], ": ", s6dns_constants_error_str(errno)) ;
             n[0] = genalloc_len(ip46_t, &ips) ;
             if (n[0] >= MAXIP) n[0] = MAXIP ;
@@ -172,13 +170,14 @@ int main (int argc, char const *const *argv)
           char ip6[MAXIP << 4] ;
           if (ip6_scanlist(ip6, MAXIP, argv[0], &n[0]))
           {
-            register unsigned int i = 0 ;
+            size_t i = 0 ;
             for (; i < n[0] ; i++) ip46_from_ip6(&ip[0][i], ip6 + (i << 4)) ;
           }
           else
           {
             stralloc ip6s = STRALLOC_ZERO ;
-            if (s6dns_resolve_aaaa_g(&ip6s, argv[0], str_len(argv[0]), flags.qualif, &deadline) <= 0)
+            size_t i = 0 ;
+            if (s6dns_resolve_aaaa_g(&ip6s, argv[0], strlen(argv[0]), flags.qualif, &deadline) <= 0)
               strerr_diefu4x(111, "resolve ", argv[0], ": ", s6dns_constants_error_str(errno)) ;
             n[0] = ip6s.len >> 4 ;
             if (n[0] >= MAXIP) n[0] = MAXIP ;
@@ -192,13 +191,14 @@ int main (int argc, char const *const *argv)
           char ip4[MAXIP << 2] ;
           if (ip4_scanlist(ip4, MAXIP, argv[0], &n[0]))
           {
-            register unsigned int i = 0 ;
+            size_t i = 0 ;
             for (; i < n[0] ; i++) ip46_from_ip4(&ip[0][i], ip4 + (i << 2)) ;
           }
           else
           {
             stralloc ip4s = STRALLOC_ZERO ;
-            if (s6dns_resolve_a_g(&ip4s, argv[0], str_len(argv[0]), flags.qualif, &deadline) <= 0)
+            size_t i = 0 ;
+            if (s6dns_resolve_a_g(&ip4s, argv[0], strlen(argv[0]), flags.qualif, &deadline) <= 0)
               strerr_diefu4x(111, "resolve ", argv[0], ": ", s6dns_constants_error_str(errno)) ;
             n[0] = ip4s.len >> 2 ;
             if (n[0] >= MAXIP) n[0] = MAXIP ;
@@ -218,7 +218,7 @@ int main (int argc, char const *const *argv)
 
     for (; j < 2 ; j++)
     {
-      unsigned int i = 0 ;
+      size_t i = 0 ;
       for (; i < n[j] ; i++)
       {
         tain_t localdeadline ;
@@ -319,7 +319,7 @@ int main (int argc, char const *const *argv)
         else
         {
           char s[256] ;
-          register unsigned int len = 0 ;
+          unsigned int len = 0 ;
           if (genalloc_len(s6dns_domain_t, &data[0].ds))
            len = s6dns_domain_tostring(s, 255, genalloc_s(s6dns_domain_t, &data[0].ds)) ;
           genalloc_free(s6dns_domain_t, &data[0].ds) ;
@@ -336,7 +336,7 @@ int main (int argc, char const *const *argv)
         else
         {
           char s[256] ;
-          register unsigned int len = 0 ;
+          unsigned int len = 0 ;
           if (genalloc_len(s6dns_domain_t, &data[1].ds))
            len = s6dns_domain_tostring(s, 255, genalloc_s(s6dns_domain_t, &data[1].ds)) ;
           genalloc_free(s6dns_domain_t, &data[1].ds) ;
@@ -357,7 +357,7 @@ int main (int argc, char const *const *argv)
       char idbuf[S6NET_IDENT_ID_SIZE] ;
       if (flags.remoteinfo)
       {
-        register int r = s6net_ident_client_g(idbuf, S6NET_IDENT_ID_SIZE, &remoteip, remoteport, &flags.localip, flags.localport, &deadline) ;
+        ssize_t r = s6net_ident_client_g(idbuf, S6NET_IDENT_ID_SIZE, &remoteip, remoteport, &flags.localip, flags.localport, &deadline) ;
         if (r <= 0)
         {
           if (flags.verbosity)
diff --git a/src/conn-tools/s6-tcpserver-access.c b/src/conn-tools/s6-tcpserver-access.c
index 72a3d2f..e16fe08 100644
--- a/src/conn-tools/s6-tcpserver-access.c
+++ b/src/conn-tools/s6-tcpserver-access.c
@@ -1,12 +1,11 @@
 /* ISC license. */
 
-#include <sys/types.h>
+#include <string.h>
 #include <stdint.h>
 #include <unistd.h>
 #include <errno.h>
 #include <skalibs/gccattributes.h>
-#include <skalibs/uint16.h>
-#include <skalibs/uint.h>
+#include <skalibs/types.h>
 #include <skalibs/strerr2.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/buffer.h>
@@ -30,22 +29,22 @@
 #define X() strerr_dief1x(101, "internal inconsistency. Please submit a bug-report.")
 
 
-static void logit (unsigned int pid, ip46_t const *ip, int h)
+static void logit (pid_t pid, ip46_t const *ip, int h)
 {
-  char fmtpid[UINT_FMT] ;
+  char fmtpid[PID_FMT] ;
   char fmtip[IP46_FMT] ;
   fmtip[ip46_fmt(fmtip, ip)] = 0 ;
-  fmtpid[uint_fmt(fmtpid, pid)] = 0 ;
+  fmtpid[pid_fmt(fmtpid, pid)] = 0 ;
   if (h) strerr_warni5x("allow", " pid ", fmtpid, " ip ", fmtip) ;
   else strerr_warni5sys("deny", " pid ", fmtpid, " ip ", fmtip) ;
 }
 
-static inline void log_accept (unsigned int pid, ip46_t const *ip)
+static inline void log_accept (pid_t pid, ip46_t const *ip)
 {
   logit(pid, ip, 1) ;
 }
 
-static inline void log_deny (unsigned int pid, ip46_t const *ip)
+static inline void log_deny (pid_t pid, ip46_t const *ip)
 {
   logit(pid, ip, 0) ;
 }
@@ -76,7 +75,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
     subgetopt_t l = SUBGETOPT_ZERO ;
     for (;;)
     {
-      register int opt = subgetopt_r(argc, argv, "WwDdHhRrPpv:l:B:t:i:x:", &l) ;
+      int opt = subgetopt_r(argc, argv, "WwDdHhRrPpv:l:B:t:i:x:", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
@@ -94,8 +93,8 @@ int main (int argc, char const *const *argv, char const *const *envp)
         case 'l' : localname = l.arg ; break ;
         case 'B' :
         {
-          register size_t n = str_len(l.arg) ;
-          if (buffer_putnoflush(buffer_1small, l.arg, n) < n)
+          size_t n = strlen(l.arg) ;
+          if (buffer_putnoflush(buffer_1small, l.arg, n) < (ssize_t)n)
             strerr_dief1x(100, "banner too long") ;
           break ;
         }
@@ -114,16 +113,16 @@ int main (int argc, char const *const *argv, char const *const *envp)
 
   proto = env_get2(envp, "PROTO") ;
   if (!proto) strerr_dienotset(100, "PROTO") ;
-  protolen = str_len(proto) ;
+  protolen = strlen(proto) ;
   {
     char const *x ;
     char tmp[protolen + 11] ;
-    byte_copy(tmp, protolen, proto) ;
-    byte_copy(tmp + protolen, 9, "REMOTEIP") ;
+    memcpy(tmp, proto, protolen) ;
+    memcpy(tmp + protolen, "REMOTEIP", 9) ;
     x = env_get2(envp, tmp) ;
     if (!x) strerr_dienotset(100, tmp) ;
     if (!ip46_scan(x, &remoteip)) strerr_dieinvalid(100, tmp) ;
-    byte_copy(tmp + protolen + 6, 5, "PORT") ;
+    memcpy(tmp + protolen + 6, "PORT", 5) ;
     x = env_get2(envp, tmp) ;
     if (!x) strerr_dienotset(100, tmp) ;
     if (!uint160_scan(x, &remoteport)) strerr_dieinvalid(100, tmp) ;
@@ -184,16 +183,16 @@ int main (int argc, char const *const *argv, char const *const *envp)
     if (socket_local46(0, &localip, &localport) < 0)
       strerr_diefu1sys(111, "socket_local") ;
     fmt[ip46_fmt(fmt, &localip)] = 0 ;
-    byte_copy(tmp, protolen, proto) ;
-    byte_copy(tmp + protolen, 8, "LOCALIP") ;
+    memcpy(tmp, proto, protolen) ;
+    memcpy(tmp + protolen, "LOCALIP", 8) ;
     if (!env_addmodif(&modifs, tmp, fmt)) dienomem() ;
     fmt[uint16_fmt(fmt, localport)] = 0 ;
-    byte_copy(tmp + protolen + 5, 5, "PORT") ;
+    memcpy(tmp + protolen + 5, "PORT", 5) ;
     if (!env_addmodif(&modifs, tmp, fmt)) dienomem() ;
-    byte_copy(tmp + protolen, 11, "REMOTEINFO") ;
+    memcpy(tmp + protolen, "REMOTEINFO", 11) ;
     if (flagident)
     {
-      register int r = s6net_ident_client_g(idbuf, S6NET_IDENT_ID_SIZE, &remoteip, remoteport, &localip, localport, &deadline) ;
+      ssize_t r = s6net_ident_client_g(idbuf, S6NET_IDENT_ID_SIZE, &remoteip, remoteport, &localip, localport, &deadline) ;
       if (r < 0)
       {
         if (verbosity >= 3) strerr_warnwu1sys("s6net_ident_client") ;
@@ -221,10 +220,10 @@ int main (int argc, char const *const *argv, char const *const *envp)
   if (!flagdnslookup)
   {
     char tmp[protolen + 11] ;
-    byte_copy(tmp, protolen, proto) ;
-    byte_copy(tmp + protolen, 10, "LOCALHOST") ;
+    memcpy(tmp, proto, protolen) ;
+    memcpy(tmp + protolen, "LOCALHOST", 10) ;
     if (!env_addmodif(&modifs, tmp, localname)) dienomem() ;
-    byte_copy(tmp + protolen, 11, "REMOTEHOST") ;
+    memcpy(tmp + protolen, "REMOTEHOST", 11) ;
     if (!env_addmodif(&modifs, tmp, 0)) dienomem() ;
   }
   else
@@ -236,10 +235,10 @@ int main (int argc, char const *const *argv, char const *const *envp)
     unsigned int remotelen = 0 ;
     char tcplocalhost[(protolen << 1) + 21] ;
     char *tcpremotehost = tcplocalhost + protolen + 10 ;
-    byte_copy(tcplocalhost, protolen, proto) ;
-    byte_copy(tcplocalhost + protolen, 10, "LOCALHOST") ;
-    byte_copy(tcpremotehost, protolen, proto) ;
-    byte_copy(tcpremotehost + protolen, 11, "REMOTEHOST") ;
+    memcpy(tcplocalhost, proto, protolen) ;
+    memcpy(tcplocalhost + protolen, "LOCALHOST", 10) ;
+    memcpy(tcpremotehost, proto, protolen) ;
+    memcpy(tcpremotehost + protolen, "REMOTEHOST", 11) ;
 
     if (!s6dns_init())
     {
@@ -293,7 +292,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
         else
         {
           char s[256] ;
-          register unsigned int len = 0 ;
+          unsigned int len = 0 ;
           if (genalloc_len(s6dns_domain_t, &data[0].ds))
           {
             s6dns_domain_noqualify(genalloc_s(s6dns_domain_t, &data[0].ds)) ;
@@ -314,7 +313,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
         remotebuf[remotelen] = 0 ;
         if (flagparanoid)
         {
-          register int r ;
+          int r ;
           data[1].ds.len = 0 ;
           r = ip46_is6(&remoteip) ? s6dns_resolve_aaaa_g(&data[1].ds, remotebuf, remotelen, 0, &deadline) : s6dns_resolve_a_g(&data[1].ds, remotebuf, remotelen, 0, &deadline) ;
           if (r <= 0)
@@ -329,9 +328,9 @@ int main (int argc, char const *const *argv, char const *const *envp)
           }
           else
           {
-            register unsigned int i = 0 ;
+            size_t i = 0 ;
             for (; i < data[1].ds.len ; i += ip46_is6(&remoteip) ? 16 : 4)
-              if (!byte_diff(remoteip.ip, ip46_is6(&remoteip) ? 16 : 4, data[1].ds.s + i)) break ;
+              if (!memcmp(remoteip.ip, data[1].ds.s + i, ip46_is6(&remoteip) ? 16 : 4)) break ;
             if (i >= data[1].ds.len) remotelen = 0 ;
           }
         }
@@ -390,10 +389,10 @@ int main (int argc, char const *const *argv, char const *const *envp)
  reject:
   if (verbosity >= 2)
   {
-    char fmtpid[UINT_FMT] ;
+    char fmtpid[PID_FMT] ;
     char fmtip[IP46_FMT] ;
     fmtip[ip46_fmt(fmtip, &remoteip)] = 0 ;
-    fmtpid[uint_fmt(fmtpid, getpid())] = 0 ;
+    fmtpid[pid_fmt(fmtpid, getpid())] = 0 ;
     strerr_dief5x(e, "reject", " pid ", fmtpid, " ip ", fmtip) ;
   }
   else return e ;
diff --git a/src/conn-tools/s6-tcpserver.c b/src/conn-tools/s6-tcpserver.c
index 3036ce7..3866b75 100644
--- a/src/conn-tools/s6-tcpserver.c
+++ b/src/conn-tools/s6-tcpserver.c
@@ -2,9 +2,7 @@
 
 #include <sys/types.h>
 #include <limits.h>
-#include <skalibs/uint64.h>
-#include <skalibs/uint.h>
-#include <skalibs/gidstuff.h>
+#include <skalibs/types.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/strerr2.h>
 #include <skalibs/djbunix.h>
@@ -21,10 +19,10 @@ int main (int argc, char const *const *argv, char const *const *envp)
   int flag1 = 0 ;
   int flagU = 0 ;
   int flagreuse = 1 ;
-  uint64 uid = 0 ;
+  uid_t uid = 0 ;
   gid_t gid = 0 ;
   gid_t gids[NGROUPS_MAX] ;
-  unsigned int gidn = (unsigned int)-1 ;
+  size_t gidn = (size_t)-1 ;
   unsigned int maxconn = 0 ;
   unsigned int localmaxconn = 0 ;
   unsigned int backlog = (unsigned int)-1 ;
@@ -34,7 +32,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
     subgetopt_t l = SUBGETOPT_ZERO ;
     for (;;)
     {
-      register int opt = subgetopt_r(argc, argv, "qQvDd1U46c:C:b:u:g:G:", &l) ;
+      int opt = subgetopt_r(argc, argv, "qQvDd1U46c:C:b:u:g:G:", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
@@ -48,11 +46,11 @@ int main (int argc, char const *const *argv, char const *const *envp)
         case 'c' : if (!uint0_scan(l.arg, &maxconn)) dieusage() ; if (!maxconn) maxconn = 1 ; break ;
         case 'C' : if (!uint0_scan(l.arg, &localmaxconn)) dieusage() ; if (!localmaxconn) localmaxconn = 1 ; break ;
         case 'b' : if (!uint0_scan(l.arg, &backlog)) dieusage() ; break ;
-        case 'u' : if (!uint640_scan(l.arg, &uid)) dieusage() ; break ;
+        case 'u' : if (!uid0_scan(l.arg, &uid)) dieusage() ; break ;
         case 'g' : if (!gid0_scan(l.arg, &gid)) dieusage() ; break ;
         case 'G' : if (!gid_scanlist(gids, NGROUPS_MAX, l.arg, &gidn) && *l.arg) dieusage() ; break ;
         case '1' : flag1 = 1 ; break ;
-        case 'U' : flagU = 1 ; uid = 0 ; gid = 0 ; gidn = (unsigned int)-1 ; break ;
+        case 'U' : flagU = 1 ; uid = 0 ; gid = 0 ; gidn = (size_t)-1 ; break ;
         default : dieusage() ;
       }
     }
@@ -70,7 +68,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
   {
     size_t pos = 0 ;
     unsigned int m = 0 ;
-    char fmt[UINT_FMT * 3 + UINT64_FMT + GID_FMT * (NGROUPS_MAX + 1)] ;
+    char fmt[UINT_FMT * 3 + UID_FMT + GID_FMT * (NGROUPS_MAX + 1)] ;
     char const *newargv[23 + argc] ;
     newargv[m++] = what == 6 ? S6_NETWORKING_BINPREFIX "s6-tcpserver6-socketbinder" : S6_NETWORKING_BINPREFIX "s6-tcpserver4-socketbinder" ;
     if (!flagreuse) newargv[m++] = "-D" ;
@@ -84,7 +82,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
     newargv[m++] = "--" ;
     newargv[m++] = *argv++ ;
     newargv[m++] = *argv++ ;
-    if (flagU || uid || gid || gidn != (unsigned int)-1)
+    if (flagU || uid || gid || gidn != (size_t)-1)
     {
       newargv[m++] = S6_EXTBINPREFIX "s6-applyuidgid" ;
       if (flagU) newargv[m++] = "-Uz" ;
@@ -92,7 +90,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
       {
         newargv[m++] = "-u" ;
         newargv[m++] = fmt + pos ;
-        pos += uint64_fmt(fmt + pos, uid) ;
+        pos += uid_fmt(fmt + pos, uid) ;
         fmt[pos++] = 0 ;
       }
       if (gid)
@@ -102,7 +100,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
         pos += gid_fmt(fmt + pos, gid) ;
         fmt[pos++] = 0 ;
       }
-      if (gidn != (unsigned int)-1)
+      if (gidn != (size_t)-1)
       {
         newargv[m++] = "-G" ;
         newargv[m++] = fmt + pos ;
diff --git a/src/conn-tools/s6-tcpserver4-socketbinder.c b/src/conn-tools/s6-tcpserver4-socketbinder.c
index a15e5f1..cc97486 100644
--- a/src/conn-tools/s6-tcpserver4-socketbinder.c
+++ b/src/conn-tools/s6-tcpserver4-socketbinder.c
@@ -1,11 +1,9 @@
 /* ISC license. */
 
-#include <sys/types.h>
 #include <stdint.h>
 #include <unistd.h>
 #include <sys/socket.h>
-#include <skalibs/uint16.h>
-#include <skalibs/uint.h>
+#include <skalibs/types.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/fmtscan.h>
 #include <skalibs/strerr2.h>
@@ -27,7 +25,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
     subgetopt_t l = SUBGETOPT_ZERO ;
     for (;;)
     {
-      register int opt = subgetopt_r(argc, argv, "DdMmb:", &l) ;
+      int opt = subgetopt_r(argc, argv, "DdMmb:", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
diff --git a/src/conn-tools/s6-tcpserver4.c b/src/conn-tools/s6-tcpserver4.c
index f0836d3..6860871 100644
--- a/src/conn-tools/s6-tcpserver4.c
+++ b/src/conn-tools/s6-tcpserver4.c
@@ -2,9 +2,7 @@
 
 #include <sys/types.h>
 #include <limits.h>
-#include <skalibs/uint64.h>
-#include <skalibs/uint.h>
-#include <skalibs/gidstuff.h>
+#include <skalibs/types.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/strerr2.h>
 #include <skalibs/djbunix.h>
@@ -20,10 +18,10 @@ int main (int argc, char const *const *argv, char const *const *envp)
   int flag1 = 0 ;
   int flagU = 0 ;
   int flagreuse = 1 ;
-  uint64 uid = 0 ;
+  uid_t uid = 0 ;
   gid_t gid = 0 ;
   gid_t gids[NGROUPS_MAX] ;
-  unsigned int gidn = (unsigned int)-1 ;
+  size_t gidn = (size_t)-1 ;
   unsigned int maxconn = 0 ;
   unsigned int localmaxconn = 0 ;
   unsigned int backlog = (unsigned int)-1 ;
@@ -32,7 +30,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
     subgetopt_t l = SUBGETOPT_ZERO ;
     for (;;)
     {
-      register int opt = subgetopt_r(argc, argv, "Dd1Uv:c:C:b:u:g:G:", &l) ;
+      int opt = subgetopt_r(argc, argv, "Dd1Uv:c:C:b:u:g:G:", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
@@ -42,11 +40,11 @@ int main (int argc, char const *const *argv, char const *const *envp)
         case 'c' : if (!uint0_scan(l.arg, &maxconn)) dieusage() ; if (!maxconn) maxconn = 1 ; break ;
         case 'C' : if (!uint0_scan(l.arg, &localmaxconn)) dieusage() ; if (!localmaxconn) localmaxconn = 1 ; break ;
         case 'b' : if (!uint0_scan(l.arg, &backlog)) dieusage() ; break ;
-        case 'u' : if (!uint640_scan(l.arg, &uid)) dieusage() ; break ;
+        case 'u' : if (!uid0_scan(l.arg, &uid)) dieusage() ; break ;
         case 'g' : if (!gid0_scan(l.arg, &gid)) dieusage() ; break ;
         case 'G' : if (!gid_scanlist(gids, NGROUPS_MAX, l.arg, &gidn) && *l.arg) dieusage() ; break ;
         case '1' : flag1 = 1 ; break ;
-        case 'U' : flagU = 1 ; uid = 0 ; gid = 0 ; gidn = (unsigned int)-1 ; break ;
+        case 'U' : flagU = 1 ; uid = 0 ; gid = 0 ; gidn = (size_t)-1 ; break ;
         default : dieusage() ;
       }
     }
@@ -57,7 +55,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
   {
     size_t pos = 0 ;
     unsigned int m = 0 ;
-    char fmt[UINT_FMT * 4 + UINT64_FMT + GID_FMT * (NGROUPS_MAX + 1)] ;
+    char fmt[UINT_FMT * 4 + UID_FMT + GID_FMT * (NGROUPS_MAX + 1)] ;
     char const *newargv[24 + argc] ;
     newargv[m++] = S6_NETWORKING_BINPREFIX "s6-tcpserver4-socketbinder" ;
     if (!flagreuse) newargv[m++] = "-D" ;
@@ -72,7 +70,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
     newargv[m++] = "--" ;
     newargv[m++] = *argv++ ;
     newargv[m++] = *argv++ ;
-    if (flagU || uid || gid || gidn != (unsigned int)-1)
+    if (flagU || uid || gid || gidn != (size_t)-1)
     {
       newargv[m++] = S6_EXTBINPREFIX "s6-applyuidgid" ;
       if (flagU) newargv[m++] = "-Uz" ;
@@ -80,7 +78,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
       {
         newargv[m++] = "-u" ;
         newargv[m++] = fmt + pos ;
-        pos += uint64_fmt(fmt + pos, uid) ;
+        pos += uid_fmt(fmt + pos, uid) ;
         fmt[pos++] = 0 ;
       }
       if (gid)
@@ -90,7 +88,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
         pos += gid_fmt(fmt + pos, gid) ;
         fmt[pos++] = 0 ;
       }
-      if (gidn != (unsigned int)-1)
+      if (gidn != (size_t)-1)
       {
         newargv[m++] = "-G" ;
         newargv[m++] = fmt + pos ;
diff --git a/src/conn-tools/s6-tcpserver4d.c b/src/conn-tools/s6-tcpserver4d.c
index e176ee5..7579ea2 100644
--- a/src/conn-tools/s6-tcpserver4d.c
+++ b/src/conn-tools/s6-tcpserver4d.c
@@ -1,6 +1,6 @@
 /* ISC license. */
 
-#include <sys/types.h>
+#include <string.h>
 #include <stdint.h>
 #include <sys/stat.h>
 #include <sys/wait.h>
@@ -10,10 +10,7 @@
 #include <signal.h>
 #include <skalibs/gccattributes.h>
 #include <skalibs/allreadwrite.h>
-#include <skalibs/uint16.h>
-#include <skalibs/uint32.h>
-#include <skalibs/uint.h>
-#include <skalibs/bytestr.h>
+#include <skalibs/types.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/strerr2.h>
 #include <skalibs/fmtscan.h>
@@ -29,11 +26,18 @@
 
 #define USAGE "s6-tcpserver4d [ -v verbosity ] [ -1 ] [ -c maxconn ] [ -C localmaxconn ] prog..."
 
+typedef struct pidip_s pidip_t, *pidip_t_ref ;
+struct pidip_s
+{
+  pid_t left ;
+  uint32_t right ;
+} ;
+
 static unsigned int maxconn = 40 ;
 static unsigned int localmaxconn = 40 ;
 static unsigned int verbosity = 1 ;
 static int cont = 1 ;
-static diuint32 *pidip = 0 ;
+static pidip_t *pidip = 0 ;
 static unsigned int numconn = 0 ;
 static diuint32 *ipnum = 0 ;
 static unsigned int iplen = 0 ;
@@ -57,22 +61,18 @@ static inline void X (void)
 
  /* Lookup primitives */
  
-static unsigned int lookup_diuint32 (diuint32 const *, unsigned int, unsigned int) gccattr_pure ;
-static unsigned int lookup_diuint32 (diuint32 const *tab, unsigned int tablen, unsigned int key)
+static inline unsigned int lookup_pid (pid_t pid)
 {
-  register unsigned int i = 0 ;
-  for (; i < tablen ; i++) if (key == tab[i].left) break ;
+  unsigned int i = 0 ;
+  for (; i < numconn ; i++) if (pid == pidip[i].left) break ;
   return i ;
 }
 
-static inline unsigned int lookup_pid (uint32 pid)
-{
-  return lookup_diuint32(pidip, numconn, pid) ;
-}
-
-static inline unsigned int lookup_ip (uint32 ip)
+static inline unsigned int lookup_ip (uint32_t ip)
 {
-  return lookup_diuint32(ipnum, iplen, ip) ;
+  unsigned int i = 0 ;
+  for (; i < iplen ; i++) if (ip == ipnum[i].left) break ;
+  return i ;
 }
 
 
@@ -106,27 +106,27 @@ static void log_deny (uint32_t ip, uint16_t port, unsigned int num)
   strerr_warni7sys("deny ", fmtip, ":", fmtport, " count ", fmtnum, fmtlocalmaxconn) ;
 }
 
-static void log_accept (uint32_t pid, uint32_t ip, uint16_t port, unsigned int num)
+static void log_accept (pid_t pid, uint32_t ip, uint16_t port, unsigned int num)
 {
   char fmtipport[IP4_FMT + UINT16_FMT + 1] ;
-  char fmtpid[UINT32_FMT] ;
+  char fmtpid[PID_FMT] ;
   char fmtnum[UINT_FMT] ;
-  register size_t n ;
+  size_t n ;
   n = ip4_fmtu32(fmtipport, ip) ;
   fmtipport[n++] = ':' ;
   n += uint16_fmt(fmtipport + n, port) ;
   fmtipport[n] = 0 ;
   fmtnum[uint_fmt(fmtnum, num)] = 0 ;
-  fmtpid[uint32_fmt(fmtpid, pid)] = 0 ;
+  fmtpid[pid_fmt(fmtpid, pid)] = 0 ;
   strerr_warni7x("allow ", fmtipport, " pid ", fmtpid, " count ", fmtnum, fmtlocalmaxconn) ;
 }
 
-static void log_close (uint32_t pid, uint32_t ip, int w)
+static void log_close (pid_t pid, uint32_t ip, int w)
 {
-  char fmtpid[UINT32_FMT] ;
+  char fmtpid[PID_FMT] ;
   char fmtip[IP4_FMT] = "?" ;
   char fmtw[UINT_FMT] ;
-  fmtpid[uint32_fmt(fmtpid, pid)] = 0 ;
+  fmtpid[pid_fmt(fmtpid, pid)] = 0 ;
   fmtip[ip4_fmtu32(fmtip, ip)] = 0 ;
   fmtw[uint_fmt(fmtw, WIFSIGNALED(w) ? WTERMSIG(w) : WEXITSTATUS(w))] = 0 ;
   strerr_warni6x("end pid ", fmtpid, " ip ", fmtip, WIFSIGNALED(w) ? " signal " : " exitcode ", fmtw) ;
@@ -137,7 +137,7 @@ static void log_close (uint32_t pid, uint32_t ip, int w)
 
 static void killthem (int sig)
 {
-  register unsigned int i = 0 ;
+  unsigned int i = 0 ;
   for (; i < numconn ; i++) kill(pidip[i].left, sig) ;
 }
 
@@ -147,7 +147,7 @@ static void wait_children (void)
   {
     unsigned int i ;
     int w ;
-    register pid_t pid = wait_nohang(&w) ;
+    pid_t pid = wait_nohang(&w) ;
     if (pid < 0)
       if (errno != ECHILD) strerr_diefu1sys(111, "wait_nohang") ;
       else break ;
@@ -156,7 +156,7 @@ static void wait_children (void)
     if (i < numconn) /* it's one of ours ! */
     {
       uint32_t ip = pidip[i].right ;
-      register unsigned int j = lookup_ip(ip) ;
+      unsigned int j = lookup_ip(ip) ;
       if (j >= iplen) X() ;
       if (!--ipnum[j].right) ipnum[j] = ipnum[--iplen] ;
       pidip[i] = pidip[--numconn] ;
@@ -223,11 +223,11 @@ static void run_child (int s, uint32_t ip, uint16_t port, unsigned int num, char
   PROG = "s6-tcpserver (child)" ;
   if ((fd_move(0, s) < 0) || (fd_copy(1, 0) < 0))
     strerr_diefu1sys(111, "move fds") ;
-  byte_copy(fmt+n, 22, "PROTO=TCP\0TCPREMOTEIP=") ; n += 22 ;
+  memcpy(fmt+n, "PROTO=TCP\0TCPREMOTEIP=", 22) ; n += 22 ;
   n += ip4_fmtu32(fmt+n, ip) ; fmt[n++] = 0 ;
-  byte_copy(fmt+n, 14, "TCPREMOTEPORT=") ; n += 14 ;
+  memcpy(fmt+n, "TCPREMOTEPORT=", 14) ; n += 14 ;
   n += uint16_fmt(fmt+n, port) ; fmt[n++] = 0 ;
-  byte_copy(fmt+n, 11, "TCPCONNNUM=") ; n += 11 ;
+  memcpy(fmt+n, "TCPCONNNUM=", 11) ; n += 11 ;
   n += uint_fmt(fmt+n, num) ; fmt[n++] = 0 ;
   pathexec_r(argv, envp, env_len(envp), fmt, n) ;
   strerr_dieexec(111, argv[0]) ;
@@ -237,7 +237,7 @@ static void new_connection (int s, uint32_t ip, uint16_t port, char const *const
 {
   unsigned int i = lookup_ip(ip) ;
   unsigned int num = (i < iplen) ? ipnum[i].right : 0 ;
-  register pid_t pid ;
+  pid_t pid ;
   if (num >= localmaxconn)
   {
     log_deny(ip, port, num) ;
@@ -261,11 +261,11 @@ static void new_connection (int s, uint32_t ip, uint16_t port, char const *const
     ipnum[iplen].left = ip ;
     ipnum[iplen++].right = 1 ;
   }
-  pidip[numconn].left = (uint32_t)pid ;
+  pidip[numconn].left = pid ;
   pidip[numconn++].right = ip ;
   if (verbosity >= 2)
   {
-    log_accept((uint32_t)pid, ip, port, ipnum[i].right) ;
+    log_accept(pid, ip, port, ipnum[i].right) ;
     log_status() ;
   }
 }
@@ -282,7 +282,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
     int flag1 = 0 ;
     for (;;)
     {
-      register int opt = subgetopt_r(argc, argv, "1c:C:v:", &l) ;
+      int opt = subgetopt_r(argc, argv, "1c:C:v:", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
@@ -339,8 +339,9 @@ int main (int argc, char const *const *argv, char const *const *envp)
   }
 
   {
-    diuint32 inyostack[maxconn<<1] ;
-    pidip = inyostack ; ipnum = inyostack + maxconn ;
+    pidip_t pidip_inyostack[maxconn] ;
+    diuint32 ipnum_inyostack[maxconn] ;
+    pidip = pidip_inyostack ; ipnum = ipnum_inyostack ;
     while (cont)
     {
       if (iopause_g(x, 1 + (numconn < maxconn), 0) < 0)
@@ -355,7 +356,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
         {
           char packedip[4] ;
           uint16_t port ;
-          register int fd = socket_accept4(x[1].fd, packedip, &port) ;
+          int fd = socket_accept4(x[1].fd, packedip, &port) ;
           if (fd < 0)
           {
             if (verbosity) strerr_warnwu1sys("accept") ;
diff --git a/src/conn-tools/s6-tcpserver6-socketbinder.c b/src/conn-tools/s6-tcpserver6-socketbinder.c
index e6c7fd8..4fc3ab4 100644
--- a/src/conn-tools/s6-tcpserver6-socketbinder.c
+++ b/src/conn-tools/s6-tcpserver6-socketbinder.c
@@ -1,10 +1,9 @@
 /* ISC license. */
 
-#include <sys/types.h>
+#include <stdint.h>
 #include <unistd.h>
 #include <sys/socket.h>
-#include <skalibs/uint16.h>
-#include <skalibs/uint.h>
+#include <skalibs/types.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/fmtscan.h>
 #include <skalibs/strerr2.h>
@@ -20,13 +19,13 @@ int main (int argc, char const *const *argv, char const *const *envp)
   int flagreuse = 1 ;
   int flagudp = 0 ;
   char ip[16] ;
-  uint16 port ;
+  uint16_t port ;
   PROG = "s6-tcpserver6-socketbinder" ;
   {
     subgetopt_t l = SUBGETOPT_ZERO ;
     for (;;)
     {
-      register int opt = subgetopt_r(argc, argv, "DdMmb:", &l) ;
+      int opt = subgetopt_r(argc, argv, "DdMmb:", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
diff --git a/src/conn-tools/s6-tcpserver6.c b/src/conn-tools/s6-tcpserver6.c
index d48efe1..8648e8e 100644
--- a/src/conn-tools/s6-tcpserver6.c
+++ b/src/conn-tools/s6-tcpserver6.c
@@ -2,9 +2,7 @@
 
 #include <sys/types.h>
 #include <limits.h>
-#include <skalibs/uint64.h>
-#include <skalibs/uint.h>
-#include <skalibs/gidstuff.h>
+#include <skalibs/types.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/strerr2.h>
 #include <skalibs/djbunix.h>
@@ -20,10 +18,10 @@ int main (int argc, char const *const *argv, char const *const *envp)
   int flag1 = 0 ;
   int flagU = 0 ;
   int flagreuse = 1 ;
-  uint64 uid = 0 ;
+  uid_t uid = 0 ;
   gid_t gid = 0 ;
   gid_t gids[NGROUPS_MAX] ;
-  unsigned int gidn = (unsigned int)-1 ;
+  size_t gidn = (size_t)-1 ;
   unsigned int maxconn = 0 ;
   unsigned int localmaxconn = 0 ;
   unsigned int backlog = (unsigned int)-1 ;
@@ -32,7 +30,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
     subgetopt_t l = SUBGETOPT_ZERO ;
     for (;;)
     {
-      register int opt = subgetopt_r(argc, argv, "Dd1Uv:c:C:b:u:g:G:", &l) ;
+      int opt = subgetopt_r(argc, argv, "Dd1Uv:c:C:b:u:g:G:", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
@@ -42,11 +40,11 @@ int main (int argc, char const *const *argv, char const *const *envp)
         case 'c' : if (!uint0_scan(l.arg, &maxconn)) dieusage() ; if (!maxconn) maxconn = 1 ; break ;
         case 'C' : if (!uint0_scan(l.arg, &localmaxconn)) dieusage() ; if (!localmaxconn) localmaxconn = 1 ; break ;
         case 'b' : if (!uint0_scan(l.arg, &backlog)) dieusage() ; break ;
-        case 'u' : if (!uint640_scan(l.arg, &uid)) dieusage() ; break ;
+        case 'u' : if (!uid0_scan(l.arg, &uid)) dieusage() ; break ;
         case 'g' : if (!gid0_scan(l.arg, &gid)) dieusage() ; break ;
         case 'G' : if (!gid_scanlist(gids, NGROUPS_MAX, l.arg, &gidn) && *l.arg) dieusage() ; break ;
         case '1' : flag1 = 1 ; break ;
-        case 'U' : flagU = 1 ; uid = 0 ; gid = 0 ; gidn = (unsigned int)-1 ; break ;
+        case 'U' : flagU = 1 ; uid = 0 ; gid = 0 ; gidn = (size_t)-1 ; break ;
         default : dieusage() ;
       }
     }
@@ -57,7 +55,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
   {
     size_t pos = 0 ;
     unsigned int m = 0 ;
-    char fmt[UINT_FMT * 4 + UINT64_FMT + GID_FMT * (NGROUPS_MAX + 1)] ;
+    char fmt[UINT_FMT * 4 + UID_FMT + GID_FMT * (NGROUPS_MAX + 1)] ;
     char const *newargv[24 + argc] ;
     newargv[m++] = S6_NETWORKING_BINPREFIX "s6-tcpserver6-socketbinder" ;
     if (!flagreuse) newargv[m++] = "-D" ;
@@ -72,7 +70,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
     newargv[m++] = "--" ;
     newargv[m++] = *argv++ ;
     newargv[m++] = *argv++ ;
-    if (flagU || uid || gid || gidn != (unsigned int)-1)
+    if (flagU || uid || gid || gidn != (size_t)-1)
     {
       newargv[m++] = S6_EXTBINPREFIX "s6-applyuidgid" ;
       if (flagU) newargv[m++] = "-Uz" ;
@@ -80,7 +78,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
       {
         newargv[m++] = "-u" ;
         newargv[m++] = fmt + pos ;
-        pos += uint64_fmt(fmt + pos, uid) ;
+        pos += uid_fmt(fmt + pos, uid) ;
         fmt[pos++] = 0 ;
       }
       if (gid)
@@ -90,7 +88,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
         pos += gid_fmt(fmt + pos, gid) ;
         fmt[pos++] = 0 ;
       }
-      if (gidn != (unsigned int)-1)
+      if (gidn != (size_t)-1)
       {
         newargv[m++] = "-G" ;
         newargv[m++] = fmt + pos ;
diff --git a/src/conn-tools/s6-tcpserver6d.c b/src/conn-tools/s6-tcpserver6d.c
index 5079d2e..ec45322 100644
--- a/src/conn-tools/s6-tcpserver6d.c
+++ b/src/conn-tools/s6-tcpserver6d.c
@@ -1,6 +1,6 @@
 /* ISC license. */
 
-#include <sys/types.h>
+#include <string.h>
 #include <stdint.h>
 #include <sys/stat.h>
 #include <sys/wait.h>
@@ -10,9 +10,7 @@
 #include <signal.h>
 #include <skalibs/gccattributes.h>
 #include <skalibs/allreadwrite.h>
-#include <skalibs/uint16.h>
-#include <skalibs/uint.h>
-#include <skalibs/bytestr.h>
+#include <skalibs/types.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/strerr2.h>
 #include <skalibs/fmtscan.h>
@@ -27,21 +25,27 @@
 
 #define USAGE "s6-tcpserver6d [ -v verbosity ] [ -1 ] [ -c maxconn ] [ -C localmaxconn ] prog..."
 
+typedef struct pidip_s pidip_t, *pidip_t_ref ;
+struct pidip_s
+{
+  pid_t pid ;
+  char ip[16] ;
+} ;
+
 typedef struct ipnum_s ipnum_t, *ipnum_t_ref ;
 struct ipnum_s
 {
   char ip[16] ;
   unsigned int num ;
 } ;
-#define IPNUM_ZERO { "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 0 }
 
 static unsigned int maxconn = 40 ;
 static unsigned int localmaxconn = 40 ;
 static unsigned int verbosity = 1 ;
 static int cont = 1 ;
-static ipnum_t_ref pidip = 0 ;
+static pidip_t *pidip = 0 ;
 static unsigned int numconn = 0 ;
-static ipnum_t_ref ipnum = 0 ;
+static ipnum_t *ipnum = 0 ;
 static unsigned int iplen = 0 ;
 
 static char fmtmaxconn[UINT_FMT+1] = "/" ;
@@ -63,17 +67,17 @@ static inline void X (void)
 
  /* Lookup primitives */
  
-static unsigned int lookup_pid (unsigned int pid)
+static inline unsigned int lookup_pid (pid_t pid)
 {
-  register unsigned int i = 0 ;
-  for (; i < numconn ; i++) if (pid == pidip[i].num) break ;
+  unsigned int i = 0 ;
+  for (; i < numconn ; i++) if (pid == pidip[i].pid) break ;
   return i ;
 }
 
-static unsigned int lookup_ip (char const *ip)
+static inline unsigned int lookup_ip (char const *ip)
 {
-  register unsigned int i = 0 ;
-  for (; i < iplen ; i++) if (!byte_diff(ip, 16, ipnum[i].ip)) break ;
+  unsigned int i = 0 ;
+  for (; i < iplen ; i++) if (!memcmp(ip, ipnum[i].ip, 16)) break ;
   return i ;
 }
 
@@ -108,27 +112,27 @@ static void log_deny (char const *ip, uint16_t port, unsigned int num)
   strerr_warni7sys("deny ", fmtip, " port ", fmtport, " count ", fmtnum, fmtlocalmaxconn) ;
 }
 
-static void log_accept (unsigned int pid, char const *ip, uint16_t port, unsigned int num)
+static void log_accept (pid_t pid, char const *ip, uint16_t port, unsigned int num)
 {
   char fmtipport[IP6_FMT + UINT16_FMT + 6] ;
-  char fmtpid[UINT_FMT] ;
+  char fmtpid[PID_FMT] ;
   char fmtnum[UINT_FMT] ;
-  register size_t n ;
+  size_t n ;
   n = ip6_fmt(fmtipport, ip) ;
-  byte_copy(fmtipport + n, 6, " port ") ; n += 6 ;
+  memcpy(fmtipport + n, " port ", 6) ; n += 6 ;
   n += uint16_fmt(fmtipport + n, port) ;
   fmtipport[n] = 0 ;
   fmtnum[uint_fmt(fmtnum, num)] = 0 ;
-  fmtpid[uint_fmt(fmtpid, pid)] = 0 ;
+  fmtpid[pid_fmt(fmtpid, pid)] = 0 ;
   strerr_warni7x("allow ", fmtipport, " pid ", fmtpid, " count ", fmtnum, fmtlocalmaxconn) ;
 }
 
-static void log_close (unsigned int pid, char const *ip, int w)
+static void log_close (pid_t pid, char const *ip, int w)
 {
-  char fmtpid[UINT_FMT] ;
+  char fmtpid[PID_FMT] ;
   char fmtip[IP6_FMT] = "?" ;
   char fmtw[UINT_FMT] ;
-  fmtpid[uint_fmt(fmtpid, pid)] = 0 ;
+  fmtpid[pid_fmt(fmtpid, pid)] = 0 ;
   fmtip[ip6_fmt(fmtip, ip)] = 0 ;
   fmtw[uint_fmt(fmtw, WIFSIGNALED(w) ? WTERMSIG(w) : WEXITSTATUS(w))] = 0 ;
   strerr_warni6x("end pid ", fmtpid, " ip ", fmtip, WIFSIGNALED(w) ? " signal " : " exitcode ", fmtw) ;
@@ -139,8 +143,8 @@ static void log_close (unsigned int pid, char const *ip, int w)
 
 static void killthem (int sig)
 {
-  register unsigned int i = 0 ;
-  for (; i < numconn ; i++) kill(pidip[i].num, sig) ;
+  unsigned int i = 0 ;
+  for (; i < numconn ; i++) kill(pidip[i].pid, sig) ;
 }
 
 static void wait_children (void)
@@ -149,7 +153,7 @@ static void wait_children (void)
   {
     unsigned int i ;
     int w ;
-    register pid_t pid = wait_nohang(&w) ;
+    pid_t pid = wait_nohang(&w) ;
     if (pid < 0)
       if (errno != ECHILD) strerr_diefu1sys(111, "wait_nohang") ;
       else break ;
@@ -157,7 +161,7 @@ static void wait_children (void)
     i = lookup_pid(pid) ;
     if (i < numconn) /* it's one of ours ! */
     {
-      register unsigned int j = lookup_ip(pidip[i].ip) ;
+      unsigned int j = lookup_ip(pidip[i].ip) ;
       if (j >= iplen) X() ;
       if (!--ipnum[j].num) ipnum[j] = ipnum[--iplen] ;
       --numconn ;
@@ -225,11 +229,11 @@ static void run_child (int s, char const *ip, uint16_t port, unsigned int num, c
   PROG = "s6-tcpserver6 (child)" ;
   if ((fd_move(0, s) < 0) || (fd_copy(1, 0) < 0))
     strerr_diefu1sys(111, "move fds") ;
-  byte_copy(fmt+n, 24, "PROTO=TCP\0TCPREMOTEIP=") ; n += 22 ;
+  memcpy(fmt+n, "PROTO=TCP\0TCPREMOTEIP=", 24) ; n += 22 ;
   n += ip6_fmt(fmt+n, ip) ; fmt[n++] = 0 ;
-  byte_copy(fmt+n, 14, "TCPREMOTEPORT=") ; n += 14 ;
+  memcpy(fmt+n, "TCPREMOTEPORT=", 14) ; n += 14 ;
   n += uint16_fmt(fmt+n, port) ; fmt[n++] = 0 ;
-  byte_copy(fmt+n, 11, "TCPCONNNUM=") ; n += 11 ;
+  memcpy(fmt+n, "TCPCONNNUM=", 11) ; n += 11 ;
   n += uint_fmt(fmt+n, num) ; fmt[n++] = 0 ;
   pathexec_r(argv, envp, env_len(envp), fmt, n) ;
   strerr_dieexec(111, argv[0]) ;
@@ -239,7 +243,7 @@ static void new_connection (int s, char const *ip, uint16_t port, char const *co
 {
   unsigned int i = lookup_ip(ip) ;
   unsigned int num = (i < iplen) ? ipnum[i].num : 0 ;
-  register pid_t pid ;
+  pid_t pid ;
   if (num >= localmaxconn)
   {
     log_deny(ip, port, num) ;
@@ -260,11 +264,11 @@ static void new_connection (int s, char const *ip, uint16_t port, char const *co
   if (i < iplen) ipnum[i].num = num + 1 ;
   else
   {
-    byte_copy(ipnum[iplen].ip, 16, ip) ;
+    memcpy(ipnum[iplen].ip, ip, 16) ;
     ipnum[iplen++].num = 1 ;
   }
-  pidip[numconn].num = pid ;
-  byte_copy(pidip[numconn++].ip, 16, ip) ;
+  pidip[numconn].pid = pid ;
+  memcpy(pidip[numconn++].ip, ip, 16) ;
   if (verbosity >= 2)
   {
     log_accept(pid, ip, port, ipnum[i].num) ;
@@ -282,7 +286,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
     int flag1 = 0 ;
     for (;;)
     {
-      register int opt = subgetopt_r(argc, argv, "1c:C:v:", &l) ;
+      int opt = subgetopt_r(argc, argv, "1c:C:v:", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
@@ -339,8 +343,10 @@ int main (int argc, char const *const *argv, char const *const *envp)
   }
 
   {
-    ipnum_t inyostack[maxconn<<1] ;
-    pidip = inyostack ; ipnum = inyostack + maxconn ;
+    pidip_t pidip_inyostack[maxconn] ;
+    ipnum_t ipnum_inyostack[maxconn] ;
+    pidip = pidip_inyostack ; ipnum = ipnum_inyostack ;
+
     while (cont)
     {
       if (iopause_g(x, 1 + (numconn < maxconn), 0) < 0)
@@ -355,7 +361,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
         {
           char ip[16] ;
           uint16_t port ;
-          register int fd = socket_accept6(x[1].fd, ip, &port) ;
+          int fd = socket_accept6(x[1].fd, ip, &port) ;
           if (fd < 0)
           {
             if (verbosity) strerr_warnwu1sys("accept") ;
diff --git a/src/conn-tools/s6-tlsc.c b/src/conn-tools/s6-tlsc.c
index 3e355f1..fb7272f 100644
--- a/src/conn-tools/s6-tlsc.c
+++ b/src/conn-tools/s6-tlsc.c
@@ -3,9 +3,7 @@
 #include <sys/types.h>
 #include <stdint.h>
 #include <errno.h>
-#include <skalibs/uint64.h>
-#include <skalibs/uint.h>
-#include <skalibs/gidstuff.h>
+#include <skalibs/types.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/strerr2.h>
 #include <skalibs/tai.h>
@@ -52,7 +50,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
     unsigned int t = 0 ;
     for (;;)
     {
-      register int opt = subgetopt_r(argc, argv, "SsYyv:K:k:Zz6:7:", &l) ;
+      int opt = subgetopt_r(argc, argv, "SsYyv:K:k:Zz6:7:", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
@@ -90,17 +88,9 @@ int main (int argc, char const *const *argv, char const *const *envp)
   if (!getuid())
   {
     char const *x = env_get2(envp, "TLS_UID") ;
-    if (x)
-    {
-      uint64 u ;
-      if (!uint640_scan(x, &u)) strerr_dieinvalid(100, "TLS_UID") ;
-      uid = (uid_t)u ;
-    }
+    if (x && !uid0_scan(x, &uid)) strerr_dieinvalid(100, "TLS_UID") ;
     x = env_get2(envp, "TLS_GID") ;
-    if (x)
-    {
-      if (!gid0_scan(x, &gid)) strerr_dieinvalid(100, "TLS_GID") ;
-    }
+    if (x && !gid0_scan(x, &gid)) strerr_dieinvalid(100, "TLS_GID") ;
   }
 
   return s6tlsc(argv, envp, &tto, preoptions, options, uid, gid, verbosity, servername, fds) ;
diff --git a/src/conn-tools/s6-tlsclient.c b/src/conn-tools/s6-tlsclient.c
index eb5311d..5bcc7e7 100644
--- a/src/conn-tools/s6-tlsclient.c
+++ b/src/conn-tools/s6-tlsclient.c
@@ -1,10 +1,8 @@
 /* ISC license. */
 
-#include <sys/types.h>
+#include <string.h>
 #include <stdint.h>
-#include <skalibs/uint16.h>
-#include <skalibs/uint.h>
-#include <skalibs/bytestr.h>
+#include <skalibs/types.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/strerr2.h>
 #include <skalibs/djbunix.h>
@@ -72,7 +70,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
     subgetopt_t l = SUBGETOPT_ZERO ;
     for (;;)
     {
-      register int opt = subgetopt_r(argc, argv, "qQv46DdHhRrnNt:l:T:i:p:SsYyK:k:Zz", &l) ;
+      int opt = subgetopt_r(argc, argv, "qQv46DdHhRrnNt:l:T:i:p:SsYyK:k:Zz", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
@@ -93,7 +91,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
         case 'l' : o.localname = l.arg ; break ;
         case 'T' :
         {
-          unsigned int n = uint_scan(l.arg, &o.ximeout) ;
+          size_t n = uint_scan(l.arg, &o.ximeout) ;
           if (!n) dieusage() ;
           o.doxy = 1 ;
           if (!l.arg[n])
@@ -163,7 +161,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
       pos += uint_fmt(fmt + pos, o.yimeout) ;
       fmt[pos++] = 0 ;
     }
-    if (byte_diff(o.localip.ip, 16, IP6_ANY))
+    if (memcmp(o.localip.ip, IP6_ANY, 16))
     {
       newargv[m++] = "-i" ;
       newargv[m++] = fmt + pos ;
diff --git a/src/conn-tools/s6-tlsd.c b/src/conn-tools/s6-tlsd.c
index da90179..d76b423 100644
--- a/src/conn-tools/s6-tlsd.c
+++ b/src/conn-tools/s6-tlsd.c
@@ -2,9 +2,7 @@
 
 #include <sys/types.h>
 #include <stdint.h>
-#include <skalibs/uint64.h>
-#include <skalibs/uint.h>
-#include <skalibs/gidstuff.h>
+#include <skalibs/types.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/strerr2.h>
 #include <skalibs/tai.h>
@@ -49,7 +47,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
     unsigned int t = 0 ;
     for (;;)
     {
-      register int opt = subgetopt_r(argc, argv, "SsYyv:K:Zz", &l) ;
+      int opt = subgetopt_r(argc, argv, "SsYyv:K:Zz", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
@@ -72,17 +70,9 @@ int main (int argc, char const *const *argv, char const *const *envp)
   if (!getuid())
   {
     char const *x = env_get2(envp, "TLS_UID") ;
-    if (x)
-    {
-      uint64 u ;
-      if (!uint640_scan(x, &u)) strerr_dieinvalid(100, "TLS_UID") ;
-      uid = (uid_t)u ;
-    }
+    if (x && !uid0_scan(x, &uid)) strerr_dieinvalid(100, "TLS_UID") ;
     x = env_get2(envp, "TLS_GID") ;
-    if (x)
-    {
-      if (!gid0_scan(x, &gid)) strerr_dieinvalid(100, "TLS_GID") ;
-    }
+    if (x && !gid0_scan(x, &gid)) strerr_dieinvalid(100, "TLS_GID") ;
   }
 
   return s6tlsd(argv, envp, &tto, preoptions, options, uid, gid, verbosity) ;
diff --git a/src/conn-tools/s6-tlsserver.c b/src/conn-tools/s6-tlsserver.c
index 82f857a..d6c84f5 100644
--- a/src/conn-tools/s6-tlsserver.c
+++ b/src/conn-tools/s6-tlsserver.c
@@ -2,9 +2,7 @@
 
 #include <sys/types.h>
 #include <limits.h>
-#include <skalibs/uint64.h>
-#include <skalibs/uint.h>
-#include <skalibs/gidstuff.h>
+#include <skalibs/types.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/strerr2.h>
 #include <skalibs/djbunix.h>
@@ -21,16 +19,16 @@
 typedef struct options_s options_t, *options_t_ref ;
 struct options_s
 {
-  uint64 uid ;
   char const *localname ;
   char const *banner ;
   char const *rules ;
   gid_t gids[NGROUPS_MAX] ;
+  size_t gidn ;
+  uid_t uid ;
   gid_t gid ;
   unsigned int maxconn ;
   unsigned int localmaxconn ;
   unsigned int backlog ;
-  unsigned int gidn ;
   unsigned int timeout ;
   unsigned int kimeout ;
   unsigned int verbosity : 2 ;
@@ -52,15 +50,15 @@ struct options_s
 
 #define OPTIONS_ZERO \
 { \
-  .uid = 0, \
   .localname = 0, \
   .banner = 0, \
   .rules = 0, \
-  .maxconn = 0, \
-  .localmaxconn = 0, \
   .backlog = (unsigned int)-1, \
-  .gidn = (unsigned int)-1, \
+  .gidn = (size_t)-1, \
+  .uid = 0, \
   .gid = 0, \
+  .maxconn = 0, \
+  .localmaxconn = 0, \
   .timeout = 0, \
   .kimeout = 0, \
   .verbosity = 1, \
@@ -88,7 +86,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
     subgetopt_t l = SUBGETOPT_ZERO ;
     for (;;)
     {
-      register int opt = subgetopt_r(argc, argv, "qQv461c:C:b:G:g:u:UWwDdHhRrPpl:B:t:i:x:SsYyK:Zz", &l) ;
+      int opt = subgetopt_r(argc, argv, "qQv461c:C:b:G:g:u:UWwDdHhRrPpl:B:t:i:x:SsYyK:Zz", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
@@ -102,9 +100,9 @@ int main (int argc, char const *const *argv, char const *const *envp)
         case 'C' : if (!uint0_scan(l.arg, &o.localmaxconn)) dieusage() ; if (!o.localmaxconn) o.localmaxconn = 1 ; break ;
         case 'b' : if (!uint0_scan(l.arg, &o.backlog)) dieusage() ; break ;
         case 'G' : if (!gid_scanlist(o.gids, NGROUPS_MAX, l.arg, &o.gidn) && *l.arg) dieusage() ; o.doapply = 1 ; break ;
-        case 'g' : if (!uint0_scan(l.arg, &o.gid)) dieusage() ; o.doapply = 1 ; break ;
-        case 'u' : if (!uint0_scan(l.arg, &o.uid)) dieusage() ; o.doapply = 1 ; break ;
-        case 'U' : o.flagU = 1 ; o.uid = 0 ; o.gid = 0 ; o.gidn = (unsigned int)-1 ; o.doapply = 1 ; break ;
+        case 'g' : if (!gid0_scan(l.arg, &o.gid)) dieusage() ; o.doapply = 1 ; break ;
+        case 'u' : if (!uid0_scan(l.arg, &o.uid)) dieusage() ; o.doapply = 1 ; break ;
+        case 'U' : o.flagU = 1 ; o.uid = 0 ; o.gid = 0 ; o.gidn = (size_t)-1 ; o.doapply = 1 ; break ;
         case 'W' : o.flagw = 0 ; break ;
         case 'w' : o.flagw = 1 ; break ;
         case 'D' : o.flagD = 1 ; o.doaccess = 1 ; break ;
@@ -137,7 +135,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
   {
     size_t pos = 0 ;
     unsigned int m = 0 ;
-    char fmt[UINT_FMT * 5 + GID_FMT * (NGROUPS_MAX + 1) + UINT64_FMT] ;
+    char fmt[UINT_FMT * 5 + UID_FMT + GID_FMT * (NGROUPS_MAX + 1)] ;
     char const *newargv[45 + argc] ;
     newargv[m++] = S6_NETWORKING_BINPREFIX "s6-tcpserver" ;
     if (o.verbosity != 1) newargv[m++] = o.verbosity ? "-v" : "-q" ;
@@ -218,7 +216,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
     if (o.doapply)
     {
       newargv[m++] = S6_EXTBINPREFIX "s6-applyuidgid" ;
-      if (o.gidn != (unsigned int)-1)
+      if (o.gidn != (size_t)-1)
       {
         newargv[m++] = "-G" ;
         newargv[m++] = fmt + pos ;
@@ -236,7 +234,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
       {
         newargv[m++] = "-u" ;
         newargv[m++] = fmt + pos ;
-        pos += uint64_fmt(fmt + pos, o.uid) ;
+        pos += uid_fmt(fmt + pos, o.uid) ;
         fmt[pos++] = 0 ;
       }
       if (o.flagU) newargv[m++] = "-Uz" ;
diff --git a/src/include/s6-networking/ident.h b/src/include/s6-networking/ident.h
index 4a406b5..ec2c93b 100644
--- a/src/include/s6-networking/ident.h
+++ b/src/include/s6-networking/ident.h
@@ -13,7 +13,7 @@
 
  /* High-level */
 
-extern int s6net_ident_client (char *, size_t, ip46_t const *, uint16_t, ip46_t const *, uint16_t, tain_t const *, tain_t *) ;
+extern ssize_t s6net_ident_client (char *, size_t, ip46_t const *, uint16_t, ip46_t const *, uint16_t, tain_t const *, tain_t *) ;
 #define s6net_ident_client_g(s, max, ra, rp, la, lp, deadline) s6net_ident_client(s, max, ra, rp, la, lp, (deadline), &STAMP)
 extern char const *s6net_ident_error_str (int) ;
 
diff --git a/src/libs6net/s6net_ident_client.c b/src/libs6net/s6net_ident_client.c
index e4f4b87..a014fe2 100644
--- a/src/libs6net/s6net_ident_client.c
+++ b/src/libs6net/s6net_ident_client.c
@@ -1,22 +1,22 @@
 /* ISC license. */
 
+#include <string.h>
 #include <stdint.h>
 #include <errno.h>
-#include <skalibs/bytestr.h>
 #include <skalibs/tai.h>
 #include <skalibs/ip46.h>
 #include <s6-networking/ident.h>
 
-int s6net_ident_client (char *s, size_t max, ip46_t const *remoteip, uint16_t remoteport, ip46_t const *localip, uint16_t localport, tain_t const *deadline, tain_t *stamp)
+ssize_t s6net_ident_client (char *s, size_t max, ip46_t const *remoteip, uint16_t remoteport, ip46_t const *localip, uint16_t localport, tain_t const *deadline, tain_t *stamp)
 {
   char buf[S6NET_IDENT_REPLY_SIZE] ;
   size_t len ;
-  register ssize_t r = s6net_ident_reply_get(buf, remoteip, remoteport, localip, localport, deadline, stamp) ;
+  ssize_t r = s6net_ident_reply_get(buf, remoteip, remoteport, localip, localport, deadline, stamp) ;
   if (r < 0) return errno == EPIPE ? (errno = EIO, 0) : -1 ; /* the RFC says so */
   len = r ;
   r = s6net_ident_reply_parse(buf, remoteport, localport) ;
   if (r <= 0) return r ;
   if (max + r < len + 1) return (errno = ENAMETOOLONG, -1) ;
-  byte_copy(s, len - r + 1, buf + r) ;
+  memcpy(s, buf + r, len - r + 1) ;
   return len - r + 1 ;
 }
diff --git a/src/libs6net/s6net_ident_error.c b/src/libs6net/s6net_ident_error.c
index de01714..fca41fc 100644
--- a/src/libs6net/s6net_ident_error.c
+++ b/src/libs6net/s6net_ident_error.c
@@ -27,7 +27,7 @@ static int const s6net_ident_error_codes[N] =
 
 char const *s6net_ident_error_str (int e)
 {
-  register unsigned int i = 0 ;
+  unsigned int i = 0 ;
   for (; i < N ; i++) if (e == s6net_ident_error_codes[i]) break ;
   return s6net_ident_error_strings[i] ;
 }
diff --git a/src/libs6net/s6net_ident_reply_get.c b/src/libs6net/s6net_ident_reply_get.c
index ee8c87e..18a833d 100644
--- a/src/libs6net/s6net_ident_reply_get.c
+++ b/src/libs6net/s6net_ident_reply_get.c
@@ -1,9 +1,8 @@
 /* ISC license. */
 
-#include <sys/types.h>
 #include <stdint.h>
 #include <errno.h>
-#include <skalibs/uint16.h>
+#include <skalibs/types.h>
 #include <skalibs/allreadwrite.h>
 #include <skalibs/buffer.h>
 #include <skalibs/error.h>
@@ -15,7 +14,7 @@
 
 ssize_t s6net_ident_reply_get (char *s, ip46_t const *remoteip, uint16_t remoteport, ip46_t const *localip, uint16_t localport, tain_t const *deadline, tain_t *stamp)
 {
-  unsigned int len ; /* XXX: change when skalibs changes */
+  size_t len ;
   int fd ;
   if (ip46_is6(remoteip) != ip46_is6(localip)) return (errno = EAFNOSUPPORT, -1) ;
   fd = socket_tcp46(ip46_is6(remoteip)) ;
diff --git a/src/libs6net/s6net_ident_reply_parse.c b/src/libs6net/s6net_ident_reply_parse.c
index dd3e84c..f2e3308 100644
--- a/src/libs6net/s6net_ident_reply_parse.c
+++ b/src/libs6net/s6net_ident_reply_parse.c
@@ -1,16 +1,16 @@
 /* ISC license. */
 
-#include <sys/types.h>
+#include <string.h>
 #include <stdint.h>
 #include <errno.h>
-#include <skalibs/uint16.h>
+#include <skalibs/types.h>
 #include <skalibs/bytestr.h>
 #include <skalibs/error.h>
 #include <s6-networking/ident.h>
 
 static size_t skipspace (char const *s)
 {
-  register size_t n = 0 ;
+  size_t n = 0 ;
   while ((s[n] == ' ') || (s[n] == '\t')) n++ ;
   return n ;
 }
@@ -33,8 +33,8 @@ ssize_t s6net_ident_reply_parse (char const *s, uint16_t rp, uint16_t lp)
   n += skipspace(s+n) ; if (!s[n]) goto err ;
   if (s[n++] != ':') goto err ;
   n += skipspace(s+n) ; if (!s[n]) goto err ;
-  if (!str_diffn(s+n, "ERROR", 5)) goto ERROR ;
-  if (!str_diffn(s+n, "USERID", 6)) goto USERID ;
+  if (!strncmp(s+n, "ERROR", 5)) goto ERROR ;
+  if (!strncmp(s+n, "USERID", 6)) goto USERID ;
  err:
   return (errno = EPROTO, -1) ;
 
@@ -43,10 +43,10 @@ ssize_t s6net_ident_reply_parse (char const *s, uint16_t rp, uint16_t lp)
   n += skipspace(s+n) ; if (!s[n]) goto err ;
   if (s[n++] != ':') goto err ;
   n += skipspace(s+n) ; if (!s[n]) goto err ;
-  if (!str_diffn(s+n, "INVALID-PORT", 12)) return (errno = EINVAL, 0) ;
-  if (!str_diffn(s+n, "NO-USER", 7)) return (errno = ESRCH, 0) ;
-  if (!str_diffn(s+n, "HIDDEN-USER", 11)) return (errno = EPERM, 0) ;
-  if (!str_diffn(s+n, "UNKNOWN-ERROR", 13)) return (errno = EIO, 0) ;
+  if (!strncmp(s+n, "INVALID-PORT", 12)) return (errno = EINVAL, 0) ;
+  if (!strncmp(s+n, "NO-USER", 7)) return (errno = ESRCH, 0) ;
+  if (!strncmp(s+n, "HIDDEN-USER", 11)) return (errno = EPERM, 0) ;
+  if (!strncmp(s+n, "UNKNOWN-ERROR", 13)) return (errno = EIO, 0) ;
   if (s[n] == 'X') return (errno = EEXIST, 0) ;
   goto err ;
 
diff --git a/src/minidentd/mgetuid-linux.c b/src/minidentd/mgetuid-linux.c
index 18caba7..f374adf 100644
--- a/src/minidentd/mgetuid-linux.c
+++ b/src/minidentd/mgetuid-linux.c
@@ -1,12 +1,10 @@
 /* ISC license. */
 
 #include <sys/types.h>
+#include <string.h>
 #include <stdint.h>
-#include <skalibs/uint16.h>
-#include <skalibs/uint32.h>
 #include <skalibs/uint64.h>
-#include <skalibs/uint.h>
-#include <skalibs/bytestr.h>
+#include <skalibs/types.h>
 #include <skalibs/fmtscan.h>
 #include <skalibs/buffer.h>
 #include <skalibs/stralloc.h>
@@ -33,10 +31,10 @@ static int skipspace (char **s)
 
 static void reverse_address (char *s, size_t n)
 {
-  register size_t i = n >> 1 ;
+  size_t i = n >> 1 ;
   while (i--)
   {
-    register char tmp = s[i] ;
+    char tmp = s[i] ;
     s[i] = s[n-1-i] ;
     s[n-1-i] = tmp ;
   }
@@ -46,9 +44,9 @@ static int parseline (char *s, size_t len, uid_t *u, char *la, uint16_t *lp, cha
 {
   char *cur = s ;
   size_t pos ;
-  uint64 uu ;
+  uint64_t uu ;
   uint32_t junk ;
-  register unsigned int iplen = is6 ? 16 : 4 ;
+  unsigned int iplen = is6 ? 16 : 4 ;
 
   if (!skipspace(&cur)) bug("initial whitespace") ;
   pos = uint32_scan(cur, &junk) ;  /* sl */
@@ -149,7 +147,7 @@ uid_t mgetuid (ip46_t const *localaddr, uint16_t localport, ip46_t const *remote
   stralloc line = STRALLOC_ZERO ;
   buffer b ;
   char y[BUFFER_INSIZE] ;
-  register int is6 = ip46_is6(localaddr) ;
+  int is6 = ip46_is6(localaddr) ;
   int fd = open_readb(is6 ? "/proc/net/tcp6" : "/proc/net/tcp") ;
   if (fd == -1) return -2 ;
   buffer_init(&b, &buffer_read, fd, y, BUFFER_INSIZE_SMALL) ;
@@ -173,8 +171,8 @@ uid_t mgetuid (ip46_t const *localaddr, uint16_t localport, ip46_t const *remote
     debuglog(lp, rp, nu, la, ra, is6) ;
 #endif
     if ((lp == localport) && (rp == remoteport)
-     && !byte_diff(la, is6 ? 16 : 4, localaddr->ip)
-     && !byte_diff(ra, is6 ? 16 : 4, remoteaddr->ip))
+     && !memcmp(la, localaddr->ip, is6 ? 16 : 4)
+     && !memcmp(ra, remoteaddr->ip, is6 ? 16 : 4))
     {
       u = nu ; break ;
     }
diff --git a/src/minidentd/minidentd.c b/src/minidentd/minidentd.c
index 4a73021..6d0f6a0 100644
--- a/src/minidentd/minidentd.c
+++ b/src/minidentd/minidentd.c
@@ -1,13 +1,11 @@
 /* ISC license. */
 
-#include <sys/types.h>
+#include <string.h>
 #include <stdint.h>
 #include <unistd.h>
 #include <errno.h>
 #include <pwd.h>
-#include <skalibs/uint16.h>
-#include <skalibs/uint32.h>
-#include <skalibs/uint.h>
+#include <skalibs/types.h>
 #include <skalibs/allreadwrite.h>
 #include <skalibs/bytestr.h>
 #include <skalibs/fmtscan.h>
@@ -33,8 +31,7 @@ static tain_t deadline ;
 static unsigned int nquery = 0 ;
 static char logfmt[UINT_FMT] ;
 
-#define DECIMAL "0123456789"
-#define godecimal(s) while (*(s) && !DECIMAL[str_chr(DECIMAL, *(s))]) (s)++
+#define godecimal(s) while (*(s) && !strchr("0123456789", *(s))) (s)++
 
 static int parseline (char const *s, uint16_t *localport, uint16_t *remoteport)
 {
@@ -106,12 +103,12 @@ static int userident (char *s, char const *home)
   int fd ;
   size_t r = 1 ;
   {
-    size_t homelen = str_len(home) ;
-    size_t userlen = str_len(userfile) ;
+    size_t homelen = strlen(home) ;
+    size_t userlen = strlen(userfile) ;
     char tmp[homelen + userlen + 2] ;
-    byte_copy(tmp, homelen, home) ;
+    memcpy(tmp, home, homelen) ;
     tmp[homelen] = '/' ;
-    byte_copy(tmp + homelen + 1, userlen + 1, userfile) ;
+    memcpy(tmp + homelen + 1, userfile, userlen + 1) ;
     fd = open_readb(tmp) ;
   }  
   if (fd == -1) return (errno != ENOENT) ? -1 : 0 ;
@@ -181,7 +178,7 @@ static void doit (char const *s, ip46_t const *localaddr, ip46_t const *remotead
   if (how)
   {
     char s[15] ;
-    register int r = userident(s, pw->pw_dir) ;
+    int r = userident(s, pw->pw_dir) ;
     if ((how == 1) || (r == 1))
     {
       reply(lr, "ERROR", "HIDDEN-USER") ;
@@ -213,7 +210,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
     unsigned int t = 0 ;
     for (;;)
     {
-      register int opt = subgetopt_r(argc, argv, "vniry:t:", &l) ;
+      int opt = subgetopt_r(argc, argv, "vniry:t:", &l) ;
       if (opt == -1) break ;
       switch (opt)
       {
@@ -235,14 +232,14 @@ int main (int argc, char const *const *argv, char const *const *envp)
     if (!proto) strerr_dienotset(100, "PROTO") ;
     {
       char const *x ;
-      size_t protolen = str_len(proto) ;
+      size_t protolen = strlen(proto) ;
       char tmp[protolen + 9] ;
-      byte_copy(tmp, protolen, proto) ;
-      byte_copy(tmp + protolen, 8, "LOCALIP") ;
+      memcpy(tmp, proto, protolen) ;
+      memcpy(tmp + protolen, "LOCALIP", 8) ;
       x = env_get2(envp, tmp) ;
       if (!x) strerr_dienotset(100, tmp) ;
       if (!ip46_scan(x, &localaddr)) strerr_dieinvalid(100, tmp) ;
-      byte_copy(tmp + protolen, 9, "REMOTEIP") ;
+      memcpy(tmp + protolen, "REMOTEIP", 9) ;
       x = env_get2(envp, tmp) ;
       if (!x) strerr_dienotset(100, tmp) ;
       if (!ip46_scan(x, &remoteaddr)) strerr_dieinvalid(100, tmp) ;
@@ -258,7 +255,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
                                                                                     
   for (;;)
   {
-    register int r ;
+    int r ;
     line.len = 0 ;
     tain_add_g(&deadline, &tto) ;
     r = timed_getln_g(buffer_0small, &line, '\n', &deadline) ;
diff --git a/src/sbearssl/sbearssl_cert_readbigpem.c b/src/sbearssl/sbearssl_cert_readbigpem.c
index d09c997..9df5ebd 100644
--- a/src/sbearssl/sbearssl_cert_readbigpem.c
+++ b/src/sbearssl/sbearssl_cert_readbigpem.c
@@ -1,9 +1,8 @@
 /* ISC license. */
 
-#include <sys/types.h>
+#include <string.h>
 #include <errno.h>
 #include <bearssl.h>
-#include <skalibs/bytestr.h>
 #include <skalibs/buffer.h>
 #include <skalibs/stralloc.h>
 #include <skalibs/genalloc.h>
@@ -33,8 +32,8 @@ int sbearssl_cert_readbigpem (char const *fn, genalloc *certs, stralloc *sa)
   for (; i < n ; i++)
   {
     char const *name = sa->s + p[i].name ;
-    if (!str_diff(name, "CERTIFICATE")
-     || !str_diff(name, "X509 CERTIFICATE"))
+    if (!strcmp(name, "CERTIFICATE")
+     || !strcmp(name, "X509 CERTIFICATE"))
     {
       sbearssl_cert sc = { .data = p[i].data, .datalen = p[i].datalen } ;
       if (!genalloc_append(sbearssl_cert, certs, &sc)) goto fail ;
diff --git a/src/sbearssl/sbearssl_cert_readfile.c b/src/sbearssl/sbearssl_cert_readfile.c
index f63fde4..746c2e8 100644
--- a/src/sbearssl/sbearssl_cert_readfile.c
+++ b/src/sbearssl/sbearssl_cert_readfile.c
@@ -1,9 +1,8 @@
 /* ISC license. */
 
-#include <sys/types.h>
+#include <string.h>
 #include <errno.h>
 #include <bearssl.h>
-#include <skalibs/bytestr.h>
 #include <skalibs/buffer.h>
 #include <skalibs/stralloc.h>
 #include <skalibs/genalloc.h>
@@ -19,7 +18,7 @@ int sbearssl_cert_readfile (char const *fn, genalloc *certs, stralloc *sa)
   int certswasnull = !genalloc_s(sbearssl_cert, certs) ;
   int sawasnull = !sa->s ;
   {
-    register ssize_t r = openreadnclose(fn, buf, SBEARSSL_MAXCERTFILESIZE) ;
+    ssize_t r = openreadnclose(fn, buf, SBEARSSL_MAXCERTFILESIZE) ;
     if (r < 0) return r ;
     n = r ;
   }
@@ -34,15 +33,15 @@ int sbearssl_cert_readfile (char const *fn, genalloc *certs, stralloc *sa)
     genalloc pems = GENALLOC_ZERO ;
     size_t i = 0 ;
     sbearssl_pemobject *p ;
-    register int r = sbearssl_pem_decode_from_string(buf, n, &pems, sa) ;
+    int r = sbearssl_pem_decode_from_string(buf, n, &pems, sa) ;
     if (r) return r ;
     p = genalloc_s(sbearssl_pemobject, &pems) ;
     n = genalloc_len(sbearssl_pemobject, &pems) ;
     for (; i < n ; i++)
     {
       char const *name = sa->s + p[i].name ;
-      if (!str_diff(name, "CERTIFICATE")
-       || !str_diff(name, "X509 CERTIFICATE"))
+      if (!strcmp(name, "CERTIFICATE")
+       || !strcmp(name, "X509 CERTIFICATE"))
       {
         sbearssl_cert cert = { .data = p[i].data, .datalen = p[i].datalen } ;
         if (!genalloc_append(sbearssl_cert, certs, &cert))
diff --git a/src/sbearssl/sbearssl_ec_issuer_keytype.c b/src/sbearssl/sbearssl_ec_issuer_keytype.c
index 2958e8d..c59da37 100644
--- a/src/sbearssl/sbearssl_ec_issuer_keytype.c
+++ b/src/sbearssl/sbearssl_ec_issuer_keytype.c
@@ -1,6 +1,5 @@
 /* ISC license. */
 
-#include <sys/types.h>
 #include <errno.h>
 #include <bearssl.h>
 #include <skalibs/stralloc.h>
diff --git a/src/sbearssl/sbearssl_pem_decode_from_buffer.c b/src/sbearssl/sbearssl_pem_decode_from_buffer.c
index e246b87..cacabd9 100644
--- a/src/sbearssl/sbearssl_pem_decode_from_buffer.c
+++ b/src/sbearssl/sbearssl_pem_decode_from_buffer.c
@@ -1,10 +1,9 @@
 /* ISC license. */
 
-#include <sys/types.h>
+#include <sys/uio.h>
 #include <errno.h>
 #include <bearssl.h>
 #include <skalibs/error.h>
-#include <skalibs/siovec.h>
 #include <skalibs/buffer.h>
 #include <skalibs/stralloc.h>
 #include <skalibs/genalloc.h>
@@ -26,19 +25,19 @@ int sbearssl_pem_decode_from_buffer (buffer *b, genalloc *list, stralloc *sa)
   br_pem_decoder_init(&ctx) ;
   for (;;)
   {
-    siovec_t v[2] ;
+    struct iovec v[2] ;
     ssize_t rr = buffer_fill(b) ;
     if (rr < 0) goto rfail ;
     if (!rr) break ;
     buffer_rpeek(b, v) ;
-    r = sbearssl_pem_push(&ctx, v[0].s, v[0].len, &po, list, &blah, &inobj) ;
+    r = sbearssl_pem_push(&ctx, v[0].iov_base, v[0].iov_len, &po, list, &blah, &inobj) ;
     if (r) goto fail ;
-    if (v[1].len)
+    if (v[1].iov_len)
     {
-      r = sbearssl_pem_push(&ctx, v[1].s, v[1].len, &po, list, &blah, &inobj) ;
+      r = sbearssl_pem_push(&ctx, v[1].iov_base, v[1].iov_len, &po, list, &blah, &inobj) ;
       if (r) goto fail ;
     }
-    buffer_rseek(b, v[0].len + v[1].len) ;
+    buffer_rseek(b, v[0].iov_len + v[1].iov_len) ;
   }
   if (!inobj) return 0 ;
 
diff --git a/src/sbearssl/sbearssl_s6tlsc.c b/src/sbearssl/sbearssl_s6tlsc.c
index c6ca4c1..057929f 100644
--- a/src/sbearssl/sbearssl_s6tlsc.c
+++ b/src/sbearssl/sbearssl_s6tlsc.c
@@ -1,6 +1,5 @@
 /* ISC license. */
 
-#include <sys/types.h>
 #include <stdint.h>
 #include <unistd.h>
 #include <errno.h>
diff --git a/src/sbearssl/sbearssl_s6tlsd.c b/src/sbearssl/sbearssl_s6tlsd.c
index 816d746..e91ef54 100644
--- a/src/sbearssl/sbearssl_s6tlsd.c
+++ b/src/sbearssl/sbearssl_s6tlsd.c
@@ -1,6 +1,6 @@
 /* ISC license. */
 
-#include <sys/types.h>
+#include <stdint.h>
 #include <unistd.h>
 #include <errno.h>
 #include <bearssl.h>
diff --git a/src/sbearssl/sbearssl_setclientcert.c b/src/sbearssl/sbearssl_setclientcert.c
index 07b1385..74bfd20 100644
--- a/src/sbearssl/sbearssl_setclientcert.c
+++ b/src/sbearssl/sbearssl_setclientcert.c
@@ -24,6 +24,5 @@ int sbearssl_setclientcert (br_ssl_client_context *cc, br_x509_certificate const
     strerr_dief1x(96, "unsupported private key type") ;
   }
 
-
   return 0 ;
 }
diff --git a/src/sbearssl/sbearssl_skey_readfile.c b/src/sbearssl/sbearssl_skey_readfile.c
index c406de0..7e7df51 100644
--- a/src/sbearssl/sbearssl_skey_readfile.c
+++ b/src/sbearssl/sbearssl_skey_readfile.c
@@ -1,9 +1,8 @@
 /* ISC license. */
 
-#include <sys/types.h>
+#include <string.h>
 #include <errno.h>
 #include <bearssl.h>
-#include <skalibs/bytestr.h>
 #include <skalibs/stralloc.h>
 #include <skalibs/genalloc.h>
 #include <skalibs/djbunix.h>
@@ -49,9 +48,9 @@ int sbearssl_skey_readfile (char const *fn, sbearssl_skey *key, stralloc *sa)
   for (; i < n ; i++)
   {
     char const *name = tmp.s + p[i].name ;
-    if (!str_diff(name, "RSA PRIVATE KEY")
-     || !str_diff(name, "EC PRIVATE KEY")
-     || !str_diff(name, "PRIVATE KEY"))
+    if (!strcmp(name, "RSA PRIVATE KEY")
+     || !strcmp(name, "EC PRIVATE KEY")
+     || !strcmp(name, "PRIVATE KEY"))
     {
       r = decode_key(key, tmp.s + p[i].data, p[i].datalen, sa) ;
       if (r) goto fail ;
diff --git a/src/sbearssl/sbearssl_ta_readdir.c b/src/sbearssl/sbearssl_ta_readdir.c
index de39eca..829d7a6 100644
--- a/src/sbearssl/sbearssl_ta_readdir.c
+++ b/src/sbearssl/sbearssl_ta_readdir.c
@@ -1,8 +1,7 @@
 /* ISC license. */
 
-#include <sys/types.h>
+#include <string.h>
 #include <errno.h>
-#include <skalibs/bytestr.h>
 #include <skalibs/stralloc.h>
 #include <skalibs/genalloc.h>
 #include <skalibs/direntry.h>
@@ -13,7 +12,7 @@ int sbearssl_ta_readdir (char const *dirfn, genalloc *taga, stralloc *tasa)
 {
   size_t tasabase = tasa->len ;
   size_t tagabase = genalloc_len(sbearssl_ta, taga) ;
-  size_t dirfnlen = str_len(dirfn) ;
+  size_t dirfnlen = strlen(dirfn) ;
   int tasawasnull = !tasa->s ;
   int tagawasnull = !genalloc_s(sbearssl_ta, taga) ;
   stralloc certsa = STRALLOC_ZERO ;
@@ -29,11 +28,11 @@ int sbearssl_ta_readdir (char const *dirfn, genalloc *taga, stralloc *tasa)
     if (!d) break ;
     if (d->d_name[0] == '.') continue ;
     {
-      size_t dlen = str_len(d->d_name) ;
+      size_t dlen = strlen(d->d_name) ;
       char fn[dirfnlen + dlen + 2] ;
-      byte_copy(fn, dirfnlen, dirfn) ;
+      memcpy(fn, dirfn, dirfnlen) ;
       fn[dirfnlen] = '/' ;
-      byte_copy(fn + dirfnlen + 1, dlen, d->d_name) ;
+      memcpy(fn + dirfnlen + 1, d->d_name, dlen) ;
       fn[dirfnlen + 1 + dlen] = 0 ;
       genalloc_setlen(sbearssl_cert, &certga, 0) ;
       certsa.len = 0 ;
diff --git a/src/sbearssl/sbearssl_x500_from_ta.c b/src/sbearssl/sbearssl_x500_from_ta.c
index 50a132b..d655919 100644
--- a/src/sbearssl/sbearssl_x500_from_ta.c
+++ b/src/sbearssl/sbearssl_x500_from_ta.c
@@ -1,15 +1,15 @@
 /* ISC license. */
 
+#include <string.h>
 #include <bearssl.h>
-#include <skalibs/bytestr.h>
 #include <s6-networking/sbearssl.h>
 
 void sbearssl_x500_from_ta (br_x500_name *names, sbearssl_ta const *sta, size_t n, char *storage, char const *tastorage)
 {
   while (n--)
   {
-    register size_t len = sta->dnlen ;
-    byte_copy(storage, len, tastorage + sta->dn) ;
+    size_t len = sta->dnlen ;
+    memcpy(storage, tastorage + sta->dn, len) ;
     sta++ ;
     names->data = (unsigned char *)storage ;
     names->len = len ;
diff --git a/src/sbearssl/sbearssl_x509_minimal_set_tai.c b/src/sbearssl/sbearssl_x509_minimal_set_tai.c
index 11b1ad6..cfa12be 100644
--- a/src/sbearssl/sbearssl_x509_minimal_set_tai.c
+++ b/src/sbearssl/sbearssl_x509_minimal_set_tai.c
@@ -9,7 +9,7 @@
 
 int sbearssl_x509_minimal_set_tai (br_x509_minimal_context *ctx, tai_t const *t)
 {
-  uint64 u ;
+  uint64_t u ;
   if (!utc_from_tai(&u, t)) return 0 ;
   u -= TAI_MAGIC ;
   br_x509_minimal_set_time(ctx, (uint32_t)(u / 86400 + 719528), u % 86400) ;
diff --git a/src/stls/stls_run.c b/src/stls/stls_run.c
index 0ba10b0..8d7478f 100644
--- a/src/stls/stls_run.c
+++ b/src/stls/stls_run.c
@@ -1,7 +1,7 @@
 /* ISC license. */
 
 #include <skalibs/nonposix.h>
-#include <sys/types.h>
+#include <sys/uio.h>
 #include <stdint.h>
 #include <sys/socket.h>
 #include <errno.h>
@@ -16,7 +16,6 @@
 #include <skalibs/tai.h>
 #include <skalibs/iopause.h>
 #include <skalibs/djbunix.h>
-#include <skalibs/siovec.h>
 #include <s6-networking/stls.h>
 
 typedef struct tlsbuf_s tlsbuf_t, *tlsbuf_t_ref ;
@@ -29,10 +28,10 @@ struct tlsbuf_s
 
 static inline int buffer_tls_flush (struct tls *ctx, tlsbuf_t *b)
 {
-  siovec_t v[2] ;
+  struct iovec v[2] ;
   ssize_t r, w ;
   buffer_rpeek(&b[0].b, v) ;
-  r = tls_write(ctx, v[0].s, v[0].len) ;
+  r = tls_write(ctx, v[0].iov_base, v[0].iov_len) ;
   switch (r)
   {
     case -1 : return -1 ;
@@ -43,9 +42,9 @@ static inline int buffer_tls_flush (struct tls *ctx, tlsbuf_t *b)
     default : break ;
   }
   w = r ;
-  if ((size_t)w == v[0].len && v[1].len)
+  if ((size_t)w == v[0].iov_len && v[1].iov_len)
   {
-    r = tls_write(ctx, v[1].s, v[1].len) ;
+    r = tls_write(ctx, v[1].iov_base, v[1].iov_len) ;
     switch (r)
     {
       case TLS_WANT_POLLIN :
@@ -65,11 +64,11 @@ static inline int buffer_tls_flush (struct tls *ctx, tlsbuf_t *b)
 
 static inline int buffer_tls_fill (struct tls *ctx, tlsbuf_t *b)
 {
-  siovec_t v[2] ;
+  struct iovec v[2] ;
   ssize_t r, w ;
   int ok = 1 ;
   buffer_wpeek(&b[1].b, v) ;
-  r = tls_read(ctx, v[0].s, v[0].len) ;
+  r = tls_read(ctx, v[0].iov_base, v[0].iov_len) ;
   switch (r)
   {
     case 0 : return -2 ;
@@ -81,9 +80,9 @@ static inline int buffer_tls_fill (struct tls *ctx, tlsbuf_t *b)
     default : break ;
   }
   w = r ;
-  if ((size_t)w == v[0].len && v[1].len)
+  if ((size_t)w == v[0].iov_len && v[1].iov_len)
   {
-    r = tls_read(ctx, v[1].s, v[1].len) ;
+    r = tls_read(ctx, v[1].iov_base, v[1].iov_len) ;
     switch (r)
     {
       case TLS_WANT_POLLOUT :
@@ -121,9 +120,9 @@ int stls_run (struct tls *ctx, int *fds, unsigned int verbosity, uint32_t option
   tlsbuf_t b[2] = { { .blockedonother = 0 }, { .blockedonother = 0 } } ;
   iopause_fd x[4] ;
   unsigned int xindex[4] ;
-  register unsigned int i ;
+  unsigned int i = 0 ;
 
-  for (i = 0 ; i < 2 ; i++)
+  for (; i < 2 ; i++)
   {
     buffer_init(&b[i].b, i ? &buffer_write : &buffer_read, fds[i], b[i].buf, STLS_BUFSIZE) ;
     if (ndelay_on(fds[2+i]) < 0) strerr_diefu1sys(111, "set fds non-blocking") ;
@@ -136,7 +135,7 @@ int stls_run (struct tls *ctx, int *fds, unsigned int verbosity, uint32_t option
   {
     tain_t deadline ;
     unsigned int xlen = 0 ;
-    register int r ;
+    int r ;
 
     tain_add_g(&deadline, fds[0] >= 0 && fds[2] >= 0 && buffer_isempty(&b[0].b) && buffer_isempty(&b[1].b) ? tto : &tain_infinite_relative) ;
 
diff --git a/src/stls/stls_s6tlsc.c b/src/stls/stls_s6tlsc.c
index 001953d..ed0476e 100644
--- a/src/stls/stls_s6tlsc.c
+++ b/src/stls/stls_s6tlsc.c
@@ -1,6 +1,5 @@
 /* ISC license. */
 
-#include <sys/types.h>
 #include <stdint.h>
 #include <unistd.h>
 #include <errno.h>
diff --git a/src/stls/stls_s6tlsd.c b/src/stls/stls_s6tlsd.c
index 4b04560..aac188e 100644
--- a/src/stls/stls_s6tlsd.c
+++ b/src/stls/stls_s6tlsd.c
@@ -1,6 +1,5 @@
 /* ISC license. */
 
-#include <sys/types.h>
 #include <stdint.h>
 #include <unistd.h>
 #include <errno.h>