PSIGNAL(3)                  BSD Programmer's Manual                 PSIGNAL(3)

NAME
     psignal, syssiglist syssigname - system signal messages

SYNOPSIS
     #include <sys/signal.h>

     void
     psignal(unsigned sig, const char *s)

     extern char *syssiglist[];
     extern char *syssigname[];

DESCRIPTION
     The psignal() function locates the descriptive message string for the
     given signal number sig and writes it to the standard error.

     If the argument s is non-NULL it 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
     syssiglist, indexed by recognized signal numbers.  The external array
     syssigname is used similarly and contains short, lower-case abbrevia-
     tions for signals which are useful for recognizing signal names in user
     input.  The defined variable NSIG contains a count of the strings in
     syssiglist and syssigname.

SEE ALSO
     sigaction(2),  perror(3)

HISTORY
     The psignal() function appeared in 4.2BSD.

4.2 Berkeley Distribution       March 26, 1993                               1