psignal man page on DragonFly

Printed from http://www.polarhome.com/service/man/?qf=psignal&af=0&tf=2&of=DragonFly

PSIGNAL(3)		 BSD Library Functions Manual		    PSIGNAL(3)

NAME
     psignal, strsignal, sys_siglist, sys_signame, sys_nsig — 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[];
     extern const int sys_nsig;

     #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 abbrevia‐
     tions for signals which are useful for recognizing signal names in user
     input.  The external variable sys_nsig contains a count of the strings in
     sys_siglist and sys_signame.  Note that the defined variable NSIG will
     typically be the same as sys_nsig, but might be different due to newer or
     older kernels and newer or older libc libraries.  For maximum portability
     you must use sys_nsig to limit-check the above arrays.  Additionally, you
     should check for NULL array entries and generate a generic signal name in
     those cases.

SEE ALSO
     sigaction(2), perror(3), strerror(3)

HISTORY
     The psignal() function appeared in 4.2BSD.

BSD			       February 27, 1995			   BSD
[top]

List of man pages available for DragonFly

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net