psignal(3) - NetBSD Manual Pages

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


NAME

     psignal, sys_siglist, sys_signame - system signal messages


SYNOPSIS

     #include <sys/signal.h>

     void
     psignal(unsigned sig, const char *s);

     extern char *sys_siglist[];
     extern char *sys_signame[];


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 using the external array
     sys_siglist, indexed by recognized signal numbers.  The external array
     sys_signame is used similarly and contains short, upper-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
     sys_siglist and sys_signame.


SEE ALSO

     sigaction(2),  perror(3),  setlocale(3),  strsignal(3)


HISTORY

     The psignal() function appeared in 4.2BSD.

4.2 Berkeley Distribution        June 4, 1993                                1