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NAME    [Toc]    [Back]

     psignal, sys_siglist, sys_signame - system signal messages

LIBRARY    [Toc]    [Back]

     Standard C Library (libc, -lc)

SYNOPSIS    [Toc]    [Back]

     #include <signal.h>

     psignal(unsigned sig, const char *s);

     extern const char * const sys_siglist[];
     extern const char * const 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 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 abbreviations
 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.

BSD                            February 27, 1995                           BSD
[ Back ]
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