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strsignal(3) [opendarwin man page]

STRSIGNAL(3)                                                 Linux Programmer's Manual                                                STRSIGNAL(3)

NAME
strsignal - return string describing signal SYNOPSIS
#include <string.h> char *strsignal(int sig); extern const char * const sys_siglist[]; Feature Test Macro Requirements for glibc (see feature_test_macros(7)): strsignal(): Since glibc 2.10: _POSIX_C_SOURCE >= 200809L Before glibc 2.10: _GNU_SOURCE DESCRIPTION
The strsignal() function returns a string describing the signal number passed in the argument sig. The string can be used only until the next call to strsignal(). The array sys_siglist holds the signal description strings indexed by signal number. The strsignal() function should be used if possible instead of this array. RETURN VALUE
The strsignal() function returns the appropriate description string, or an unknown signal message if the signal number is invalid. On some systems (but not on Linux), NULL may instead be returned for an invalid signal number. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +------------+---------------+---------------------------------+ |Interface | Attribute | Value | +------------+---------------+---------------------------------+ |strsignal() | Thread safety | MT-Unsafe race:strsignal locale | +------------+---------------+---------------------------------+ CONFORMING TO
POSIX.1-2008. Present on Solaris and the BSDs. SEE ALSO
psignal(3), strerror(3) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. GNU 2017-09-15 STRSIGNAL(3)

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PSIGNAL(3)						     Linux Programmer's Manual							PSIGNAL(3)

NAME
psignal, psiginfo - print signal message SYNOPSIS
#include <signal.h> void psignal(int sig, const char *s); void psiginfo(const siginfo_t *pinfo, const char *s); extern const char *const sys_siglist[]; Feature Test Macro Requirements for glibc (see feature_test_macros(7)): psignal(): Since glibc 2.19: _DEFAULT_SOURCE Glibc 2.19 and earlier: _BSD_SOURCE || _SVID_SOURCE psiginfo(): _POSIX_C_SOURCE >= 200809L sys_siglist: Since glibc 2.19: _DEFAULT_SOURCE Glibc 2.19 and earlier: _BSD_SOURCE DESCRIPTION
The psignal() function displays a message on stderr consisting of the string s, a colon, a space, a string describing the signal number sig, and a trailing newline. If the string s is NULL or empty, the colon and space are omitted. If sig is invalid, the message displayed will indicate an unknown signal. The psiginfo() function is like 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 array sys_siglist holds the signal description strings indexed by signal number. RETURN VALUE
The psignal() and psiginfo() functions return no value. VERSIONS
The psiginfo() function was added to glibc in version 2.10. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +----------------------+---------------+----------------+ |Interface | Attribute | Value | +----------------------+---------------+----------------+ |psignal(), psiginfo() | Thread safety | MT-Safe locale | +----------------------+---------------+----------------+ CONFORMING TO
POSIX.1-2008, 4.3BSD. BUGS
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. SEE ALSO
sigaction(2), perror(3), strsignal(3), signal(7) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. GNU
2017-09-15 PSIGNAL(3)
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