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NAME    [Toc]    [Back]

     psignal, sys_siglist, sys_signame - system signal messages

SYNOPSIS    [Toc]    [Back]

     #include <signal.h>

     psignal(unsigned sig, const char *s);

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

DESCRIPTION    [Toc]    [Back]

     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 not 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
 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    [Toc]    [Back]

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

HISTORY    [Toc]    [Back]

     The psignal() function appeared in 4.2BSD.

OpenBSD      3.6                           June      4,      1993
[ Back ]
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