strsignal - return string describing signal
#include <string.h>
char *strsignal(int sig);
extern const char * const sys_siglist[];
Feature Test Macro Requirements for glibc (see
feature_test_macros(7)):
strsignal():
- Since glibc 2.10:
- _POSIX_C_SOURCE >= 200809L
- Before glibc 2.10:
- _GNU_SOURCE
The
strsignal() function returns a string describing the signal number
passed in the argument
sig. The string can be used only 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.
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), NULL may instead be returned for an invalid signal number.
For an explanation of the terms used in this section, see
attributes(7).
Interface |
Attribute |
Value |
strsignal () |
Thread safety |
MT-Unsafe race:strsignal locale |
POSIX.1-2008. Present on Solaris and the BSDs.
psignal(3),
strerror(3)