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Fix handling of real-time signals.

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This commit is contained in:
Todd C. Miller
2019-08-19 08:36:30 -06:00
parent 9f7db2df2c
commit 29534ad96a
2 changed files with 39 additions and 13 deletions
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17
lib/util/sig2str.c
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@@ -62,9 +62,22 @@ int
sudo_sig2str(int signo, char *signame)
{
#if defined(SIGRTMIN) && defined(SIGRTMAX)
/* Realtime signal support as per Solaris. */
/* Realtime signal support. */
if (signo >= SIGRTMIN && signo <= SIGRTMAX) {
(void)snprintf(signame, SIG2STR_MAX, "RTMIN+%d", (signo - SIGRTMIN));
const long rtmax = sysconf(_SC_RTSIG_MAX);
if (rtmax > 0) {
if (signo == SIGRTMIN) {
strlcpy(signame, "RTMIN", SIG2STR_MAX);
} else if (signo == SIGRTMAX) {
strlcpy(signame, "RTMAX", SIG2STR_MAX);
} else if (signo <= SIGRTMIN + (rtmax / 2) - 1) {
(void)snprintf(signame, SIG2STR_MAX, "RTMIN+%d",
(signo - SIGRTMIN));
} else {
(void)snprintf(signame, SIG2STR_MAX, "RTMAX-%d",
(SIGRTMAX - signo));
}
}
return 0;
}
#endif