5.39 strsignal—convert signal number to string

Synopsis

#include <string.h>
char *strsignal(int signal);

Description
strsignal converts the signal number signal into a string. If signal is not a known signal number, the result will be of the form "Unknown signal NN" where NN is the signal is a decimal number.

Returns
This function returns a pointer to a string. Your application must not modify that string.

Portability
POSIX.1-2008 C requires strsignal, but does not specify the strings used for each signal number.

strsignal requires no supporting OS subroutines.