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path: root/src/conn-tools/s6-tcpserver6d.c
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Diffstat (limited to 'src/conn-tools/s6-tcpserver6d.c')
-rw-r--r--src/conn-tools/s6-tcpserver6d.c78
1 files changed, 42 insertions, 36 deletions
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") ;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 15:49:46 +0000