diff options
Diffstat (limited to 'openbsd-compat/bsd-misc.c')
| -rw-r--r-- | openbsd-compat/bsd-misc.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/openbsd-compat/bsd-misc.c b/openbsd-compat/bsd-misc.c index 56cb45ade..08b089bdc 100644 --- a/openbsd-compat/bsd-misc.c +++ b/openbsd-compat/bsd-misc.c @@ -25,7 +25,7 @@ #include "includes.h" #include "xmalloc.h" -RCSID("$Id: bsd-misc.c,v 1.18 2003/08/21 23:34:42 djm Exp $"); +RCSID("$Id: bsd-misc.c,v 1.19 2003/08/25 01:16:21 mouring Exp $"); /* * NB. duplicate __progname in case it is an alias for argv[0] @@ -200,3 +200,29 @@ tcsendbreak(int fd, int duration) # endif } #endif /* HAVE_TCSENDBREAK */ + +mysig_t +mysignal(int sig, mysig_t act) +{ +#ifdef HAVE_SIGACTION + struct sigaction sa, osa; + + if (sigaction(sig, NULL, &osa) == -1) + return (mysig_t) -1; + if (osa.sa_handler != act) { + memset(&sa, 0, sizeof(sa)); + sigemptyset(&sa.sa_mask); + sa.sa_flags = 0; +#ifdef SA_INTERRUPT + if (sig == SIGALRM) + sa.sa_flags |= SA_INTERRUPT; +#endif + sa.sa_handler = act; + if (sigaction(sig, &sa, NULL) == -1) + return (mysig_t) -1; + } + return (osa.sa_handler); +#else + return (signal(sig, act)); +#endif +} |