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added posix signals

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This commit is contained in:
Todd C. Miller
1994-06-06 20:57:25 +00:00
parent f2a4f4ad78
commit 369cf760d9
1 changed files with 19 additions and 0 deletions
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19
logging.c
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@@ -361,6 +361,11 @@ static void send_mail()
char *subject = MAILSUBJECT; char *subject = MAILSUBJECT;
int fd[2]; int fd[2];
char buf[MAXLOGLEN + 1024]; char buf[MAXLOGLEN + 1024];
#ifdef POSIX_SIGNALS
struct sigaction action;
#endif /* POSIX_SIGNALS */
(void) bzero((char *)(&action), sizeof(action));
/* become root for find_path() */ /* become root for find_path() */
be_root(); be_root();
@@ -374,7 +379,12 @@ static void send_mail()
be_user(); be_user();
/* catch children as they die */ /* catch children as they die */
#ifdef POSIX_SIGNALS
action.sa_handler = reapchild;
(void) sigaction(SIGCHLD, &action, NULL);
#else
(void) signal(SIGCHLD, reapchild); (void) signal(SIGCHLD, reapchild);
#endif /* POSIX_SIGNALS */
if (fork()) if (fork())
return; return;
@@ -384,9 +394,16 @@ static void send_mail()
*/ */
be_full_user(); be_full_user();
#ifdef POSIX_SIGNALS
action.sa_handler = SIG_IGN;
(void) sigaction(SIGHUP, &action, NULL);
(void) sigaction(SIGINT, &action, NULL);
(void) sigaction(SIGQUIT, &action, NULL);
#else
(void) signal(SIGHUP, SIG_IGN); (void) signal(SIGHUP, SIG_IGN);
(void) signal(SIGINT, SIG_IGN); (void) signal(SIGINT, SIG_IGN);
(void) signal(SIGQUIT, SIG_IGN); (void) signal(SIGQUIT, SIG_IGN);
#endif /* POSIX_SIGNALS */
if (pipe(fd)) { if (pipe(fd)) {
perror("send_mail: pipe"); perror("send_mail: pipe");
@@ -430,7 +447,9 @@ static RETSIGTYPE reapchild(sig)
int sig; int sig;
{ {
(void) wait(NULL); (void) wait(NULL);
#ifndef POSIX_SIGNALS
(void) signal(SIGCHLD, reapchild); (void) signal(SIGCHLD, reapchild);
#endif /* POSIX_SIGNALS */
} }