PSIGNAL(3) Library Functions Manual PSIGNAL(3) NAME psignal, strsignal, sys_siglist, sys_signame -- system signal messages LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <signal.h> void psignal(unsigned sig, const char *s); extern const char * const sys_siglist[]; extern const char * const sys_signame[]; #include <string.h> char * strsignal(int sig); DESCRIPTION The psignal() and strsignal() functions locate the descriptive message string for a signal number. The strsignal() function accepts a signal number argument sig and returns a pointer to the corresponding message string. The psignal() function accepts a signal number argument sig and writes it to the standard error. If the argument s is non-NULL and does not point to the null character, s is written to the standard error file descriptor prior to the message string, immediately followed by a colon and a space. If the signal number is not recognized (sigaction(2)), the string "Unknown signal" is produced. The message strings can be accessed directly through the external array sys_siglist, indexed by recognized signal numbers. The external array sys_signame is used similarly and contains short, lower-case abbreviations for signals which are useful for recognizing signal names in user input. The defined variable NSIG contains a count of the strings in sys_siglist and sys_signame. SEE ALSO sigaction(2), perror(3), strerror(3) HISTORY The psignal() function appeared in 4.2BSD. FreeBSD 8.1 February 27, 1995 PSIGNAL(3)
Want to link to this manual page? Use this URL:
<https://man.FreeBSD.org/cgi/man.cgi?query=strsignal&sektion=3&manpath=FreeBSD+8.1-RELEASE>