diff options
Diffstat (limited to 'lib/libalpm/util.c')
| -rw-r--r-- | lib/libalpm/util.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/lib/libalpm/util.c b/lib/libalpm/util.c index a06f5bfd..eaf85e93 100644 --- a/lib/libalpm/util.c +++ b/lib/libalpm/util.c @@ -548,6 +548,25 @@ static int _alpm_chroot_read_from_child(alpm_handle_t *handle, int fd, return 0; } +static void _alpm_reset_signals(void) +{ + /* reset POSIX defined signals (see signal.h) */ + /* there are likely more but there is no easy way + * to get the full list of valid signals */ + int *i, signals[] = { + SIGABRT, SIGALRM, SIGBUS, SIGCHLD, SIGCONT, SIGFPE, SIGHUP, SIGILL, + SIGINT, SIGKILL, SIGPIPE, SIGQUIT, SIGSEGV, SIGSTOP, SIGTERM, SIGTSTP, + SIGTTIN, SIGTTOU, SIGUSR1, SIGUSR2, SIGPOLL, SIGPROF, SIGSYS, SIGTRAP, + SIGURG, SIGVTALRM, SIGXCPU, SIGXFSZ, + 0 + }; + struct sigaction def; + def.sa_handler = SIG_DFL; + for(i = signals; *i; i++) { + sigaction(*i, &def, NULL); + } +} + /** Execute a command with arguments in a chroot. * @param handle the context handle * @param cmd command to execute @@ -633,6 +652,7 @@ int _alpm_run_chroot(alpm_handle_t *handle, const char *cmd, char *const argv[], exit(1); } umask(0022); + _alpm_reset_signals(); execv(cmd, argv); /* execv only returns if there was an error */ fprintf(stderr, _("call to execv failed (%s)\n"), strerror(errno)); |