Prepare for 0.5.2.1; build against new skalibs/execline/s6

18 files changed, 125 insertions, 158 deletions

diff --git a/INSTALL b/INSTALL
index 920f043..dc36c88 100644
--- a/INSTALL
+++ b/INSTALL
@@ -6,9 +6,9 @@ Build Instructions
 
   - A POSIX-compliant C development environment
   - GNU make version 3.81 or later
-  - skalibs version 2.9.3.0 or later: http://skarnet.org/software/skalibs/
-  - execline version 2.6.1.1 or later: http://skarnet.org/software/execline/
-  - s6 version 2.9.2.0 or later: http://skarnet.org/software/s6/
+  - skalibs version 2.10.0.0 or later: http://skarnet.org/software/skalibs/
+  - execline version 2.7.0.0 or later: http://skarnet.org/software/execline/
+  - s6 version 2.10.0.0 or later: http://skarnet.org/software/s6/
 
  This software will run on any operating system that implements
 POSIX.1-2008, available at:
diff --git a/NEWS b/NEWS
index 16673dc..ef38116 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,11 @@
 Changelog for s6-rc.
 
+In 0.5.2.1
+----------
+
+ - Adaptation to skalibs-2.10.0.0, execline-2.7.0.0 and s6-2.10.0.0
+
+
 In 0.5.2.0
 ----------
 
diff --git a/doc/index.html b/doc/index.html
index 08cad57..d5293fb 100644
--- a/doc/index.html
+++ b/doc/index.html
@@ -48,12 +48,12 @@ scripts are also run in a controlled environment.
  <li> A POSIX-compliant system with a standard C development environment </li>
  <li> GNU make, version 3.81 or later </li>
  <li> <a href="//skarnet.org/software/skalibs/">skalibs</a> version
-2.9.3.0 or later. It's a build-time requirement. It's also a run-time
+2.10.0.0 or later. It's a build-time requirement. It's also a run-time
 requirement if you link against the shared version of the skalibs library. </li>
  <li> <a href="//skarnet.org/software/execline/">execline</a> version
-2.6.1.1 or later. It's a build-time <em>and</em> run-time requirement. </li>
+2.7.0.0 or later. It's a build-time <em>and</em> run-time requirement. </li>
  <li> <a href="//skarnet.org/software/s6/">s6</a> version
-2.9.2.0 or later. It's a build-time <em>and</em> run-time requirement. </li>
+2.10.0.0 or later. It's a build-time <em>and</em> run-time requirement. </li>
 </ul>
 
 <h3> Licensing </h3>
@@ -67,7 +67,7 @@ requirement if you link against the shared version of the skalibs library. </li>
 
 <ul>
  <li> The current released version of s6-rc is
-<a href="s6-rc-0.5.2.0.tar.gz">0.5.2.0</a>. </li>
+<a href="s6-rc-0.5.2.1.tar.gz">0.5.2.1</a>. </li>
  <li> Alternatively, you can checkout a copy of the
 <a href="//git.skarnet.org/cgi-bin/cgit.cgi/s6-rc/">s6-rc
 git repository</a>:
diff --git a/doc/upgrade.html b/doc/upgrade.html
index 9312335..0978f9e 100644
--- a/doc/upgrade.html
+++ b/doc/upgrade.html
@@ -30,6 +30,17 @@ minor and bugfix version changes.
 
 <h1> What has changed in s6-rc </h1>
 
+<h2> in 0.5.2.1 </h2>
+
+<ul>
+ <li> <a href="//skarnet.org/software/skalibs/">skalibs</a>
+dependency bumped to 2.10.0.0. </li>
+ <li> <a href="//skarnet.org/software/execline/">execline</a>
+dependency bumped to 2.7.0.0. </li>
+ <li> <a href="//skarnet.org/software/s6/">s6</a>
+dependency bumped to 2.10.0.0. </li>
+</ul>
+
 <h2> in 0.5.2.0 </h2>
 
 <ul>
diff --git a/package/info b/package/info
index dadf0dd..0d11360 100644
--- a/package/info
+++ b/package/info
@@ -1,4 +1,4 @@
 package=s6-rc
-version=0.5.2.0
+version=0.5.2.1
 category=admin
 package_macro_name=S6RC
diff --git a/src/libs6rc/s6rc_livedir_create.c b/src/libs6rc/s6rc_livedir_create.c
index fd23a07..bd44bd6 100644
--- a/src/libs6rc/s6rc_livedir_create.c
+++ b/src/libs6rc/s6rc_livedir_create.c
@@ -10,7 +10,7 @@
 #include <skalibs/djbunix.h>
 #include <s6-rc/s6rc-utils.h>
 
-int s6rc_livedir_create (stralloc *sa, char const *live, char const *suffix, char const *scandir, char const *prefix, char const *compiled, unsigned char const *state, unsigned int statelen, size_t *dirlen)
+int s6rc_livedir_create (stralloc *sa, char const *live, char const *suffix, char const *scdir, char const *prefix, char const *compiled, unsigned char const *state, unsigned int statelen, size_t *dirlen)
 {
   size_t newlen, ddirlen ;
   size_t sabase = sa->len ;
@@ -28,7 +28,7 @@ int s6rc_livedir_create (stralloc *sa, char const *live, char const *suffix, cha
   strcpy(sa->s + newlen, "compiled") ;
   if (symlink(compiled, sa->s + sabase) < 0) goto delerr ;
   strcpy(sa->s + newlen, "scandir") ;
-  if (symlink(scandir, sa->s + sabase) < 0) goto delerr ;
+  if (symlink(scdir, sa->s + sabase) < 0) goto delerr ;
   strcpy(sa->s + newlen, "prefix") ;
   if (!openwritenclose_unsafe(sa->s + sabase, prefix, strlen(prefix))) goto delerr ;
   strcpy(sa->s + newlen, "state") ;
diff --git a/src/libs6rc/s6rc_lock.c b/src/libs6rc/s6rc_lock.c
index d3ae2b5..e879fcc 100644
--- a/src/libs6rc/s6rc_lock.c
+++ b/src/libs6rc/s6rc_lock.c
@@ -2,18 +2,10 @@
 
 #include <string.h>
 #include <errno.h>
-#include <skalibs/djbunix.h>
-#include <s6-rc/s6rc-utils.h>
 
-static inline int lockex (int fd, int blocking)
-{
-  return blocking ? lock_ex(fd) : lock_exnb(fd) ;
-}
+#include <skalibs/djbunix.h>
 
-static inline int locksh (int fd, int blocking)
-{
-  return blocking ? lock_sh(fd) : lock_shnb(fd) ;
-}
+#include <s6-rc/s6rc-utils.h>
 
 int s6rc_lock (char const *live, int lwhat, int *llfd, char const *compiled, int cwhat, int *ccfd, int blocking)
 {
@@ -21,6 +13,7 @@ int s6rc_lock (char const *live, int lwhat, int *llfd, char const *compiled, int
 
   if (lwhat)
   {
+    int r ;
     size_t llen = strlen(live) ;
     char lfn[llen + 6] ;
     memcpy(lfn, live, llen) ;
@@ -28,7 +21,9 @@ int s6rc_lock (char const *live, int lwhat, int *llfd, char const *compiled, int
     lfd = open_create(lfn) ;
     if (lfd < 0) return 0 ;
     if (coe(lfd) < 0) goto lerr ;
-    if ((lwhat > 1 ? lockex(lfd, blocking) : locksh(lfd, blocking)) < 0) goto lerr ;
+    r = fd_lock(lfd, lwhat > 1, !blocking) ;
+    if (!r) errno = EBUSY ;
+    if (r < 1) goto lerr ;
   }
 
   if (cwhat)
@@ -43,8 +38,11 @@ int s6rc_lock (char const *live, int lwhat, int *llfd, char const *compiled, int
       else cfd = -errno ;
     else
     {
+      int r ;
       if (coe(cfd) < 0) goto cerr ;
-      if ((cwhat > 1 ? lockex(cfd, blocking) : locksh(cfd, blocking)) < 0) goto cerr ;
+      r = fd_lock(cfd, cwhat > 1, !blocking) ;
+      if (!r) errno = EBUSY ;
+      if (r < 1) goto cerr ;
     }
   }
 
diff --git a/src/libs6rc/s6rc_servicedir_block.c b/src/libs6rc/s6rc_servicedir_block.c
index bfa6440..9038342 100644
--- a/src/libs6rc/s6rc_servicedir_block.c
+++ b/src/libs6rc/s6rc_servicedir_block.c
@@ -2,9 +2,12 @@
 
 #include <string.h>
 #include <unistd.h>
+
 #include <skalibs/posixplz.h>
 #include <skalibs/djbunix.h>
+
 #include <s6/s6-supervise.h>
+
 #include <s6-rc/s6rc-servicedir.h>
 
 int s6rc_servicedir_block (char const *dir)
diff --git a/src/libs6rc/s6rc_servicedir_copy_offline.c b/src/libs6rc/s6rc_servicedir_copy_offline.c
index 6581a4f..b517536 100644
--- a/src/libs6rc/s6rc_servicedir_copy_offline.c
+++ b/src/libs6rc/s6rc_servicedir_copy_offline.c
@@ -2,16 +2,17 @@
 
 #include <sys/stat.h>
 #include <errno.h>
+
 #include "s6rc-servicedir-internal.h"
 #include <s6-rc/s6rc-servicedir.h>
 
 int s6rc_servicedir_copy_offline (char const *src, char const *dst)
 {
   s6rc_servicedir_desc_t const *p = s6rc_servicedir_file_list ;
-  if (mkdir(dst, 0755) < 0)
-  {
-    if (errno != EEXIST) return 0 ;
-  }
+  mode_t m = umask(0) ;
+  int r = mkdir(dst, 0755) ;
+  umask(m) ;
+  if (r < 0 && errno != EEXIST) return 0 ;
   for (; p->name ; p++)
     if (!s6rc_servicedir_copy_one(src, dst, p)) return 0 ;
   return 1 ;
diff --git a/src/libs6rc/s6rc_servicedir_copy_online.c b/src/libs6rc/s6rc_servicedir_copy_online.c
index e676d5a..5e84079 100644
--- a/src/libs6rc/s6rc_servicedir_copy_online.c
+++ b/src/libs6rc/s6rc_servicedir_copy_online.c
@@ -5,7 +5,9 @@
 #include <errno.h>
 #include <unistd.h>
 #include <stdio.h>
+
 #include <skalibs/djbunix.h>
+
 #include <s6-rc/s6rc-utils.h>
 #include "s6rc-servicedir-internal.h"
 #include <s6-rc/s6rc-servicedir.h>
@@ -27,7 +29,12 @@ int s6rc_servicedir_copy_online (char const *src, char const *dst)
   memcpy(oldfn, dst, dstlen) ;
   memcpy(oldfn + dstlen, "/old", 5) ;
   if (rm_rf(oldfn) < 0 && errno != ENOENT) return 0 ;
-  if (mkdir(oldfn, 0755) < 0) return 0 ;
+  {
+    mode_t m = umask(0) ;
+    int r = mkdir(oldfn, 0755) ;
+    umask(m) ;
+    if (r < 0) return 0 ;
+  }
   dstfn[dstlen] = '/' ;
   oldfn[dstlen + 4] = '/' ;
   wantup = s6rc_servicedir_block(dst) ;
diff --git a/src/libs6rc/s6rc_servicedir_internal.c b/src/libs6rc/s6rc_servicedir_internal.c
index b70061f..f84b6fb 100644
--- a/src/libs6rc/s6rc_servicedir_internal.c
+++ b/src/libs6rc/s6rc_servicedir_internal.c
@@ -3,8 +3,11 @@
 #include <string.h>
 #include <errno.h>
 #include <unistd.h>
+
+#include <skalibs/posixplz.h>
 #include <skalibs/types.h>
 #include <skalibs/djbunix.h>
+
 #include <s6-rc/s6rc-utils.h>
 #include "s6rc-servicedir-internal.h"
 
@@ -14,7 +17,6 @@ static s6rc_servicedir_desc_t const svdir_file_list[] =
   { .name = "finish.user", .type = FILETYPE_NORMAL, .options = SVFILE_EXECUTABLE },
   { .name = "run", .type = FILETYPE_NORMAL, .options = SVFILE_EXECUTABLE | SVFILE_MANDATORY | SVFILE_ATOMIC },
   { .name = "run.user", .type = FILETYPE_NORMAL, .options = SVFILE_EXECUTABLE },
-  { .name = "nosetsid", .type = FILETYPE_EMPTY, .options = 0 },
   { .name = "notification-fd", .type = FILETYPE_UINT, .options = 0 },
   { .name = "timeout-kill", .type = FILETYPE_UINT, .options = 0 },
   { .name = "timeout-finish", .type = FILETYPE_UINT, .options = 0 },
diff --git a/src/libs6rc/s6rc_servicedir_manage.c b/src/libs6rc/s6rc_servicedir_manage.c
index 5449f35..e11e4e4 100644
--- a/src/libs6rc/s6rc_servicedir_manage.c
+++ b/src/libs6rc/s6rc_servicedir_manage.c
@@ -1,45 +1,26 @@
 /* ISC license. */
 
 #include <string.h>
-#include <stdint.h>
-#include <unistd.h>
 #include <errno.h>
+
 #include <skalibs/direntry.h>
-#include <skalibs/djbunix.h>
 #include <skalibs/stralloc.h>
-#include <skalibs/genalloc.h>
+
 #include <s6/s6-supervise.h>
-#include <s6/ftrigr.h>
-#include <s6/ftrigw.h>
-#include <s6-rc/s6rc-servicedir.h>
 
-static inline void rollback (char const *live, char const *prefix, char const *s, size_t len)
-{
-  while (len)
-  {
-    size_t n = strlen(s) + 1 ;
-    s6rc_servicedir_unsupervise(live, prefix, s, 0) ;
-    s += n ; len -= n ;
-  }
-}
+#include <s6-rc/s6rc-servicedir.h>
 
 int s6rc_servicedir_manage (char const *live, char const *prefix, tain_t const *deadline, tain_t *stamp)
 {
-  ftrigr_t a = FTRIGR_ZERO ;
-  stralloc newnames = STRALLOC_ZERO ;
-  genalloc ids = GENALLOC_ZERO ; /* uint16_t */
-  gid_t gid = getgid() ;
+  stralloc names = STRALLOC_ZERO ;
   size_t livelen = strlen(live) ;
-  size_t prefixlen = strlen(prefix) ;
-  int fdlock ;
-  int ok = 1 ;
+  size_t n = 0 ;
   DIR *dir ;
   char dirfn[livelen + 13] ;
-  if (!ftrigr_startf(&a, deadline, stamp)) return 0 ;
   memcpy(dirfn, live, livelen) ;
   memcpy(dirfn + livelen, "/servicedirs", 13) ;
   dir = opendir(dirfn) ;
-  if (!dir) goto closederr ;
+  if (!dir) return -1 ;
   for (;;)
   {
     direntry *d ;
@@ -47,77 +28,28 @@ int s6rc_servicedir_manage (char const *live, char const *prefix, tain_t const *
     d = readdir(dir) ;
     if (!d) break ;
     if (d->d_name[0] == '.') continue ;
-    {
-      size_t len = strlen(d->d_name) ;
-      int r ;
-      uint16_t id ;
-      char srcfn[livelen + 20 + len] ;
-      char dstfn[livelen + 10 + prefixlen + len] ;
-      memcpy(srcfn, dirfn, livelen + 12) ;
-      srcfn[livelen + 12] = '/' ;
-      memcpy(srcfn + livelen + 13, d->d_name, len + 1) ;
-      fdlock = s6_svc_lock_take(srcfn) ;
-      if (fdlock < 0) goto err ;
-      r = s6_svc_ok(srcfn) ;
-      if (r < 0) goto erru ;
-      if (!r)
-      {
-        memcpy(srcfn + livelen + 13 + len, "/down", 6) ;
-        if (!touch(srcfn)) goto erru ;
-        memcpy(srcfn + livelen + 14 + len, "event", 6) ;
-        if (!ftrigw_fifodir_make(srcfn, gid, 0)) goto erru ;
-        id = ftrigr_subscribe(&a, srcfn, "s", 0, deadline, stamp) ;
-        if (!id) goto erru ;
-        s6_svc_lock_release(fdlock) ;
-        if (!genalloc_append(uint16_t, &ids, &id)) goto err ;
-        srcfn[livelen + 13 + len] = 0 ;
-      }
-      else s6_svc_lock_release(fdlock) ;
-      memcpy(dstfn, live, livelen) ;
-      memcpy(dstfn + livelen, "/scandir/", 9) ;
-      memcpy(dstfn + livelen + 9, prefix, prefixlen) ;
-      memcpy(dstfn + livelen + 9 + prefixlen, d->d_name, len + 1) ;
-      if (symlink(srcfn, dstfn) < 0)
-      {
-        if (!r || errno != EEXIST) goto err ;
-      }
-      else if (!r)
-      {
-        if (!stralloc_catb(&newnames, d->d_name, len + 1))
-        {
-          s6rc_servicedir_unsupervise(live, prefix, d->d_name, 0) ;
-          goto err ;
-        }
-      }
-    }
+    if (!stralloc_catb(&names, dirfn, livelen + 12)
+     || !stralloc_catb(&names, "/", 1)
+     || !stralloc_cats(&names, d->d_name)
+     || !stralloc_0(&names)) goto err ;
+    n++ ;
   }
   if (errno) goto err ;
   dir_close(dir) ;
+  if (!n) return 0 ;
+  memcpy(dirfn + livelen + 1, "scandir", 8) ;
   {
-    char scanfn[livelen + 9] ;
+    char const *p = names.s ;
+    char const *servicedirs[n] ;
     int r ;
-    memcpy(scanfn, live, livelen) ;
-    memcpy(scanfn + livelen, "/scandir", 9) ;
-    r = s6_svc_writectl(scanfn, S6_SVSCAN_CTLDIR, "a", 1) ;
-    if (r < 0) goto closederr ;
-    if (!r) ok = 3 ;
-    else if (ftrigr_wait_and(&a, genalloc_s(uint16_t, &ids), genalloc_len(uint16_t, &ids), deadline, stamp) < 0)
-      goto closederr ;
+    for (size_t i = 0 ; i < n ; p += strlen(p) + 1) servicedirs[i++] = p ;
+    r = s6_supervise_link(dirfn, servicedirs, n, prefix, 0, deadline, stamp) ;
+    stralloc_free(&names) ;
+    return r ;
   }
 
-  ftrigr_end(&a) ;
-  genalloc_free(uint16_t, &ids) ;
-  stralloc_free(&newnames) ;
-  return ok ;
-
- erru:
-  s6_svc_lock_release(fdlock) ;
  err:
   dir_close(dir) ;
- closederr:
-  ftrigr_end(&a) ;
-  genalloc_free(uint16_t, &ids) ;
-  rollback(live, prefix, newnames.s, newnames.len) ;
-  stralloc_free(&newnames) ;
-  return 0 ;
+  stralloc_free(&names) ;
+  return -1 ;
 }
diff --git a/src/libs6rc/s6rc_servicedir_unsupervise.c b/src/libs6rc/s6rc_servicedir_unsupervise.c
index 2d15a70..44cc7b9 100644
--- a/src/libs6rc/s6rc_servicedir_unsupervise.c
+++ b/src/libs6rc/s6rc_servicedir_unsupervise.c
@@ -1,10 +1,9 @@
 /* ISC license. */
 
-#include <errno.h>
 #include <string.h>
-#include <unistd.h>
-#include <skalibs/posixplz.h>
+
 #include <s6/s6-supervise.h>
+
 #include <s6-rc/s6rc-servicedir.h>
 
 void s6rc_servicedir_unsupervise (char const *live, char const *prefix, char const *name, int keepsupervisor)
@@ -12,18 +11,11 @@ void s6rc_servicedir_unsupervise (char const *live, char const *prefix, char con
   size_t livelen = strlen(live) ;
   size_t prefixlen = strlen(prefix) ;
   size_t namelen = strlen(name) ;
-  char fn[livelen + 14 + prefixlen + namelen] ;
-  memcpy(fn, live, livelen) ;
-  memcpy(fn + livelen, "/scandir/", 9) ;
-  memcpy(fn + livelen + 9, prefix, prefixlen) ;
-  memcpy(fn + livelen + 9 + prefixlen, name, namelen + 1) ;
-  unlink_void(fn) ;
-  if (!keepsupervisor)
-  {
-    int e = errno ;
-    memcpy(fn + livelen + 1, "servicedirs/", 12) ;
-    memcpy(fn + livelen + 13, name, namelen + 1) ;
-    s6_svc_writectl(fn, S6_SUPERVISE_CTLDIR, "x", 1) ;
-    errno = e ;
-  }
+  char scdir[livelen + 9] ;
+  char fn[prefixlen + namelen + 1] ;
+  memcpy(scdir, live, livelen) ;
+  memcpy(scdir + livelen, "/scandir", 9) ;
+  memcpy(fn, prefix, prefixlen) ;
+  memcpy(fn + prefixlen, name, namelen + 1) ;
+  s6_supervise_unlink(scdir, fn, keepsupervisor ? 0 : 3) ;
 }
diff --git a/src/s6-rc/s6-rc-compile.c b/src/s6-rc/s6-rc-compile.c
index 4414ded..6fb9d5e 100644
--- a/src/s6-rc/s6-rc-compile.c
+++ b/src/s6-rc/s6-rc-compile.c
@@ -1085,9 +1085,9 @@ static inline void write_fdholder (char const *compiled, s6rc_db_t const *db, ch
   if (!stralloc_cats(&satmp,
     "#!" EXECLINE_SHEBANGPREFIX "execlineb -P\n"
     EXECLINE_EXTBINPREFIX "pipeline -dw --\n{\n  "
-    EXECLINE_EXTBINPREFIX "if -n --\n  {\n    "
-    EXECLINE_EXTBINPREFIX "forstdin -x 1 -- i\n    "
-    EXECLINE_EXTBINPREFIX "exit 1\n  }\n  "
+    EXECLINE_EXTBINPREFIX "if --\n  {\n    "
+    EXECLINE_EXTBINPREFIX "forstdin -x0 -- i\n      "
+    EXECLINE_EXTBINPREFIX "exit 0\n  }\n  "
     EXECLINE_EXTBINPREFIX "if -nt --\n  {\n    "
     EXECLINE_EXTBINPREFIX "redirfd -r 0 ./data/autofilled\n    "
     S6_EXTBINPREFIX "s6-ipcclient -l0 -- s\n    "
diff --git a/src/s6-rc/s6-rc-fdholder-filler.c b/src/s6-rc/s6-rc-fdholder-filler.c
index abb0753..9b28bb1 100644
--- a/src/s6-rc/s6-rc-fdholder-filler.c
+++ b/src/s6-rc/s6-rc-fdholder-filler.c
@@ -3,11 +3,13 @@
 #include <string.h>
 #include <unistd.h>
 #include <errno.h>
+
 #include <skalibs/types.h>
 #include <skalibs/strerr2.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/allreadwrite.h>
 #include <skalibs/tai.h>
+
 #include <s6/s6-fdholder.h>
 
 #define USAGE "s6-rc-fdholder-filler [ -1 ] [ -t timeout ] < autofilled-filename"
@@ -15,7 +17,21 @@
 
 #define N 4096
 
-static unsigned int parse_servicenames (char *s, unsigned int *indices)
+static inline unsigned int class (char c)
+{
+  switch (c)
+  {
+    case 0 : return 0 ;
+    case '\n' : return 1 ;
+    case '#' : return 2 ;
+    case ' ' :
+    case '\r' :
+    case '\t' : return 3 ;
+    default : return 4 ;
+  }
+}
+
+static inline unsigned int parse_servicenames (char *s, unsigned int *indices)
 {
   static unsigned char const table[3][5] =
   {
@@ -26,17 +42,9 @@ static unsigned int parse_servicenames (char *s, unsigned int *indices)
   unsigned int pos = 0 ;
   unsigned int n = 0 ;
   unsigned int state = 0 ;
-
-  unsigned char class[256] ;
-  memset(class, 4, 256) ;
-  class[0] = 0 ;
-  class['\n'] = 1 ;
-  class['#'] = 2 ;
-  class[' '] = class['\r'] = class['\t'] = 3 ;
-
   for (; state < 3 ; pos++)
   {
-    unsigned char c = table[state][class[(unsigned char)s[pos]]] ;
+    unsigned char c = table[state][class(s[pos])] ;
     state = c & 3 ;
     if (c & 4) indices[n++] = pos ;
     if (c & 8) s[pos] = 0 ;
diff --git a/src/s6-rc/s6-rc-init.c b/src/s6-rc/s6-rc-init.c
index b591cc0..3398f23 100644
--- a/src/s6-rc/s6-rc-init.c
+++ b/src/s6-rc/s6-rc-init.c
@@ -5,6 +5,7 @@
 #include <errno.h>
 #include <stdlib.h>
 
+#include <skalibs/posixplz.h>
 #include <skalibs/types.h>
 #include <skalibs/sgetopt.h>
 #include <skalibs/strerr2.h>
@@ -118,14 +119,14 @@ int main (int argc, char const *const *argv)
     strerr_diefu4sys(111, "symlink ", sa.s + dirlen, " to ", live) ;
   }
 
-  deref = s6rc_servicedir_manage_g(live, prefix, &deadline) ;
-  if (!deref)
+  if (s6rc_servicedir_manage_g(live, prefix, &deadline) < 0)
   {
     unlink_void(live) ;
     cleanup(&sa) ;
-    strerr_diefu3sys(111, "supervise service directories in ", live, "/servicedirs") ;
+    if (errno == ENXIO)
+      strerr_diefu5x(100, "supervise service directories in ", live, "/servicedirs", ": s6-svscan not running on ", argv[0]) ;
+    else
+      strerr_diefu3sys(111, "supervise service directories in ", live, "/servicedirs") ;
   }
-  if (deref & 2)
-    strerr_warnw2x("s6-svscan not running on ", argv[0]) ;
   return 0 ;
 }
diff --git a/src/s6-rc/s6-rc-oneshot-run.c b/src/s6-rc/s6-rc-oneshot-run.c
index d80f704..a544b74 100644
--- a/src/s6-rc/s6-rc-oneshot-run.c
+++ b/src/s6-rc/s6-rc-oneshot-run.c
@@ -9,6 +9,7 @@
 #include <skalibs/sgetopt.h>
 #include <skalibs/strerr2.h>
 #include <skalibs/djbunix.h>
+#include <skalibs/exec.h>
 
 #include <s6-rc/config.h>
 #include <s6-rc/s6rc.h>
@@ -16,7 +17,7 @@
 #define USAGE "s6-rc-oneshot-run [ -l live ] [ -b ] up|down servicenumber"
 #define dieusage() strerr_dieusage(100, USAGE)
 
-int main (int argc, char const *const *argv, char const *const *envp)
+int main (int argc, char const *const *argv)
 {
   char const *live = S6RC_LIVE_BASE ;
   unsigned int number ;
@@ -103,7 +104,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
         char const **p = newargv ;
         while (sargc--) *p++ = *sargv++ ;
         *p = 0 ;
-        xpathexec0_run(newargv, envp) ;
+        xexec0(newargv) ;
       }
     }
   }
diff --git a/src/s6-rc/s6-rc-update.c b/src/s6-rc/s6-rc-update.c
index 56cce96..7308c5b 100644
--- a/src/s6-rc/s6-rc-update.c
+++ b/src/s6-rc/s6-rc-update.c
@@ -20,6 +20,7 @@
 #include <skalibs/stralloc.h>
 #include <skalibs/tai.h>
 #include <skalibs/djbunix.h>
+#include <skalibs/exec.h>
 #include <skalibs/skamisc.h>
 #include <skalibs/unix-transactional.h>
 
@@ -764,9 +765,13 @@ int main (int argc, char const *const *argv, char const *const *envp)
 
         make_new_livedir(oldstate, &olddb, newstate, &newdb, argv[0], invimage, prefix, &sa) ;
         stralloc_free(&sa) ;
-        r = s6rc_servicedir_manage_g(live, prefix, &deadline) ;
-        if (!r) strerr_diefu2sys(111, "manage new service directories in ", live) ;
-        if (r & 2) strerr_warnw3x("s6-svscan not running on ", live, "/scandir") ;
+        if (s6rc_servicedir_manage_g(live, prefix, &deadline) < 0)
+        {
+          if (errno == ENXIO)
+           strerr_diefu5x(100, "manage new service directories in ", live, ": s6-svscan not running on ", live, "/scandir") ;
+          else
+           strerr_diefu2sys(111, "manage new service directories in ", live) ;
+        }
 
        /* Adjust stored pipes */
 
@@ -810,7 +815,7 @@ int main (int argc, char const *const *argv, char const *const *envp)
         newargv[m++] = 0 ;
         if (verbosity >= 2)
           strerr_warni1x("starting services in the new database") ;
-        xpathexec_run(newargv[0], newargv, envp) ;
+        xexec_e(newargv, envp) ;
       }
     }
   }