Section (3) psignal
psignal, psiginfo — print signal message
|const char *s
||const siginfo_t *pinfo,|
|const char *s
extern const char *const sys_siglist;
displays a message on
consisting of the string
s, a colon, a space, a string
describing the signal number
sig, and a trailing newline. If
s is NULL
or empty, the colon and space are omitted. If
sig is invalid, the message
displayed will indicate an unknown signal.
psiginfo() function is
psignal(), except that it
displays information about the signal described by
pinfo, which should point to a
valid siginfo_t structure. As well
as the signal description,
psiginfo() displays information about the
origin of the signal, and other information relevant to the
signal (e.g., the relevant memory address for
hardware-generated signals, the child process ID for
SIGCHLD, and the user ID and
process ID of the sender, for signals set using kill(2) or sigqueue(3)).
the signal description strings indexed by signal number.
For an explanation of the terms used in this section, see attributes(7).
||Thread safety||MT-Safe locale|
In glibc versions up to 2.12,
psiginfo() had the following bugs:
In some circumstances, a trailing newline is not printed.
Additional details are not displayed for real-time signals.
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Copyright 1993 David Metcalfe (davidprism.demon.co.uk)
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Linux libc source code
Lewine_zsingle_quotesz_s _POSIX Programmer_zsingle_quotesz_s Guide_ (O_zsingle_quotesz_Reilly & Associates, 1991)
386BSD man pages
Modified Sat Jul 24 18:45:17 1993 by Rik Faith (faithcs.unc.edu)