1.\" Copyright (c) 1983, 1991 Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" %sccs.include.redist.man% 5.\" 6.\" @(#)psignal.3 6.2 (Berkeley) 04/19/91 7.\" 8.Dd 9.Dt PSIGNAL 3 10.Os BSD 4.2 11.Sh NAME 12.Nm psignal , 13.Nm sys_siglist 14.Nd system signal messages 15.Sh SYNOPSIS 16.Fd #include <sys/signal.h> 17.Ft void 18.Fn psignal "unsigned sig" "const char *s" 19.Vt extern char *sys_siglist[]; 20.Sh DESCRIPTION 21The 22.Fn psignal 23function locates the descriptive message 24string for the given signal 25.Fa sig 26number 27and writes it to the 28.Em stderr . 29.Pp 30If the argument 31.Fa s 32is 33.Pf non- Dv NULL 34it is written to the 35.Em stderr 36prior to the message string. 37The signal number should be from among those found in 38.Aq Pa signal.h . 39.Pp 40The message strings can be accessed directly 41using the external character array 42.Va sys_siglist . 43The defined variable 44.Dv NSIG 45contains a count of the messages in 46.Va sys_siglist . 47.Sh SEE ALSO 48.Xr sigaction 2 , 49.Xr perror 3 50.Sh HISTORY 51The 52.Fn psignal 53function appeared in 54.Bx 4.2 . 55