NAME¶

strsignal - return string describing signal

SYNOPSIS¶

#define _GNU_SOURCE


#include <string.h>

char *strsignal(int sig);

extern const char * const sys_siglist[];

DESCRIPTION¶

The strsignal() function returns a string describing the signal number passed in the argument sig. The string can only be used until the next call to strsignal().

The array sys_siglist holds the signal description strings indexed by signal number. The strsignal() function should be used if possible instead of this array.

RETURN VALUE¶

The strsignal() function returns the appropriate description string, or an unknown signal message if the signal number is invalid. On some systems (but not on Linux), a NULL pointer may be returned instead for an invalid signal number.

CONFORMING TO¶

POSIX.1-2008. Present on Solaris and the BSDs.

SEE ALSO¶

psignal(3), strerror(3), feature_test_macros(7)

COLOPHON¶

This page is part of release 3.22 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.