psignal(sig, s) unsigned sig; char *s;
char *sys_siglist[];
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 NEWLINE. Most usefully, the argument string is the name of the program which incurred the signal. 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.
Created by unroff & hp-tools. © somebody (See intro for details). All Rights Reserved. Last modified 11/5/97