psignal(3) - NetBSD Manual Pages

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PSIGNAL(3)              NetBSD Library Functions Manual             PSIGNAL(3)


NAME

     psignal, psiginfo, sys_siglist, sys_signame -- system signal messages


LIBRARY

     Standard C Library (libc, -lc)


SYNOPSIS

     #include <signal.h>

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

     psiginfo(const siginfo_t *si, const char *s);

     extern const char * const sys_siglist[];
     extern const char * const 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 psiginfo() function produces the same output as the psignal() func-
     tion, only it uses the signal number information from the si argument.

     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.  The psiginfo() function
     appeared in NetBSD 6.0.

NetBSD 10.1                     August 27, 2010                    NetBSD 10.1