sys_siglist(3) [bsd man page]

PSIGNAL(3)						     Library Functions Manual							PSIGNAL(3)

NAME

       psignal, sys_siglist - system signal messages

SYNOPSIS

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

       char *sys_siglist[];

DESCRIPTION

       Psignal	produces a short message on the standard error file describing the indicated signal.  First the argument string s is printed, then
       a colon, then the name of the signal and a new-line.  Most usefully, the argument string is the name of the program which incurred the sig-
       nal.  The signal number should be from among those found in <signal.h>.

       To  simplify variant formatting of signal names, the vector of message strings sys_siglist is provided; the signal number can be used as an
       index in this table to get the signal name without the newline.	The define NSIG defined in <signal.h> is the number of	messages  provided
       for in the table; it should be checked because new signals may be added to the system before they are added to the table.

SEE ALSO

       sigvec(2), perror(3)

4.2 Berkeley Distribution					   May 15, 1985 							PSIGNAL(3)

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

NAME

     psignal, strsignal, sys_siglist, sys_signame -- 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[];

     #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 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

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

HISTORY

     The psignal() function appeared in 4.2BSD.

BSD
								 February 27, 1995							       BSD