For xsi_sigpause(3), remove the supplied signal from the process mask
during sigpause(2) call. It was backward. Check that the signal number is valid. Reported by: Garrett Cooper <yanegomi gmail com> MFC after: 1 week
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=209932
@ -35,6 +35,7 @@ __FBSDID("$FreeBSD$");
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#include "namespace.h"
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#include <sys/param.h>
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#include <errno.h>
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#include <signal.h>
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#include <string.h>
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#include "un-namespace.h"
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@ -111,9 +112,16 @@ int
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xsi_sigpause(int sig)
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{
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sigset_t set;
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int error;
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sigemptyset(&set);
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sigaddset(&set, sig);
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if (!_SIG_VALID(sig)) {
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errno = EINVAL;
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return (-1);
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}
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error = _sigprocmask(SIG_BLOCK, NULL, &set);
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if (error != 0)
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return (error);
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sigdelset(&set, sig);
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return (_sigsuspend(&set));
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}
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