PSIGNAL(3) Library Routines PSIGNAL(3)
psignal, sys_siglist, sys_signame - system signal messages
void psignal (unsigned sig, const char *s);
extern const char * const sys_siglist;
extern const char * const sys_signame;
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 (see sigac-
tion(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 defined macro NSIG contains a count of the strings in
sys_siglist and sys_signame.
The psignal function appeared in 4.2BSD.
GNO 27 July 1997 PSIGNAL(3)
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