tcpsvd: new applet

It's a GPL-ed 'clone' of Dan Bernstein's tcpserver.
Author: Gerrit Pape <pape@smarden.org>
http://smarden.sunsite.dk/ipsvd/
size tcpsvd.o
   text    data     bss     dec     hex filename
   2571       4      16    2591     a1f tcpsvd.o

5 files changed, 11 insertions, 101 deletions

diff --git a/runit/runit_lib.c b/runit/runit_lib.c
index 4762096..fcb66c3 100644
--- a/runit/runit_lib.c
+++ b/runit/runit_lib.c
@@ -385,56 +385,9 @@ int seek_set(int fd,seek_pos pos)
 #endif
 
 
-/*** sig_block.c ***/
-
-void sig_block(int sig)
-{
-	sigset_t ss;
-	sigemptyset(&ss);
-	sigaddset(&ss, sig);
-	sigprocmask(SIG_BLOCK, &ss, NULL);
-}
-
-void sig_unblock(int sig)
-{
-	sigset_t ss;
-	sigemptyset(&ss);
-	sigaddset(&ss, sig);
-	sigprocmask(SIG_UNBLOCK, &ss, NULL);
-}
-
-void sig_blocknone(void)
-{
-	sigset_t ss;
-	sigemptyset(&ss);
-	sigprocmask(SIG_SETMASK, &ss, NULL);
-}
-
-
-/*** sig_catch.c ***/
-
-void sig_catch(int sig,void (*f)(int))
-{
-	struct sigaction sa;
-	sa.sa_handler = f;
-	sa.sa_flags = 0;
-	sigemptyset(&sa.sa_mask);
-	sigaction(sig,&sa, NULL);
-}
-
-
-/*** sig_pause.c ***/
-
-void sig_pause(void)
-{
-	sigset_t ss;
-	sigemptyset(&ss);
-	sigsuspend(&ss);
-}
-
-
 /*** str_chr.c ***/
 
+// strchrnul?
 unsigned str_chr(const char *s,int c)
 {
 	char ch;
@@ -449,24 +402,3 @@ unsigned str_chr(const char *s,int c)
 	}
 	return t - s;
 }
-
-
-/*** wait_nohang.c ***/
-
-int wait_nohang(int *wstat)
-{
-	return waitpid(-1, wstat, WNOHANG);
-}
-
-
-/*** wait_pid.c ***/
-
-int wait_pid(int *wstat, int pid)
-{
-	int r;
-
-	do
-		r = waitpid(pid, wstat, 0);
-	while ((r == -1) && (errno == EINTR));
-	return r;
-}
diff --git a/runit/runit_lib.h b/runit/runit_lib.h
index 9fe4166..25aeeaf 100644
--- a/runit/runit_lib.h
+++ b/runit/runit_lib.h
@@ -123,32 +123,9 @@ extern int open_write(const char *);
 extern unsigned pmatch(const char *, const char *, unsigned);
 
 
-/*** sig.h ***/
-
-extern void sig_catch(int,void (*)(int));
-#define sig_ignore(s) (sig_catch((s), SIG_IGN))
-#define sig_uncatch(s) (sig_catch((s), SIG_DFL))
-
-extern void sig_block(int);
-extern void sig_unblock(int);
-extern void sig_blocknone(void);
-extern void sig_pause(void);
-
-
 /*** str.h ***/
 
 extern unsigned str_chr(const char *,int);  /* never returns NULL */
 
 #define str_diff(s,t) strcmp((s), (t))
 #define str_equal(s,t) (!strcmp((s), (t)))
-
-
-/*** wait.h ***/
-
-extern int wait_pid(int *wstat, int pid);
-extern int wait_nohang(int *wstat);
-
-#define wait_crashed(w) ((w) & 127)
-#define wait_exitcode(w) ((w) >> 8)
-#define wait_stopsig(w) ((w) >> 8)
-#define wait_stopped(w) (((w) & 127) == 127)
diff --git a/runit/runsv.c b/runit/runsv.c
index 0184568..61eb02e 100644
--- a/runit/runsv.c
+++ b/runit/runsv.c
@@ -323,11 +323,11 @@ static void startservice(struct svdir *s)
 				close(logpipe[0]);
 			}
 		}
-		sig_uncatch(SIGCHLD);
+		signal(SIGCHLD, SIG_DFL);
+		signal(SIGTERM, SIG_DFL);
 		sig_unblock(SIGCHLD);
-		sig_uncatch(SIGTERM);
 		sig_unblock(SIGTERM);
-		execve(*run, run, environ);
+		execvp(*run, run);
 		fatal2_cannot(s->islog ? "start log/" : "start ", *run);
 	}
 	if (s->state != S_FINISH) {
diff --git a/runit/runsvdir.c b/runit/runsvdir.c
index cce2c5d..39929fc 100644
--- a/runit/runsvdir.c
+++ b/runit/runsvdir.c
@@ -97,9 +97,10 @@ static void runsv(int no, const char *name)
 		prog[0] = (char*)"runsv";
 		prog[1] = (char*)name;
 		prog[2] = NULL;
-		sig_uncatch(SIGHUP);
-		sig_uncatch(SIGTERM);
-		if (pgrp) setsid();
+		if (pgrp)
+			setsid();
+		signal(SIGHUP, SIG_DFL);
+		signal(SIGTERM, SIG_DFL);
 		BB_EXECVP(prog[0], prog);
 		//pathexec_run(*prog, prog, (char* const*)environ);
 		fatal2_cannot("start runsv ", name);
diff --git a/runit/svlogd.c b/runit/svlogd.c
index fb834a4..1d66255 100644
--- a/runit/svlogd.c
+++ b/runit/svlogd.c
@@ -143,9 +143,9 @@ static unsigned processorstart(struct logdir *ld)
 		int fd;
 
 		/* child */
-		sig_uncatch(SIGTERM);
-		sig_uncatch(SIGALRM);
-		sig_uncatch(SIGHUP);
+		signal(SIGTERM, SIG_DFL);
+		signal(SIGALRM, SIG_DFL);
+		signal(SIGHUP, SIG_DFL);
 		sig_unblock(SIGTERM);
 		sig_unblock(SIGALRM);
 		sig_unblock(SIGHUP);