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PROLOG | NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLES | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT |
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STRSIGNAL(3P) POSIX Programmer's Manual STRSIGNAL(3P)
This manual page is part of the POSIX Programmer's Manual. The
Linux implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior),
or the interface may not be implemented on Linux.
strsignal — get name of signal
#include <string.h>
char *strsignal(int signum);
The strsignal() function shall map the signal number in signum to
an implementation-defined string and shall return a pointer to
it. It shall use the same set of messages as the psignal()
function.
The application shall not modify the string returned. The
returned pointer might be invalidated or the string content might
be overwritten by a subsequent call to strsignal() or
setlocale(). The returned pointer might also be invalidated if
the calling thread is terminated.
The contents of the message strings returned by strsignal()
should be determined by the setting of the LC_MESSAGES category
in the current locale.
The implementation shall behave as if no function defined in this
standard calls strsignal().
Since no return value is reserved to indicate an error, an
application wishing to check for error situations should set
errno to 0, then call strsignal(), then check errno.
The strsignal() function need not be thread-safe.
Upon successful completion, strsignal() shall return a pointer to
a string. Otherwise, if signum is not a valid signal number, the
return value is unspecified.
No errors are defined.
The following sections are informative.
None.
None.
If signum is not a valid signal number, some implementations
return NULL, while for others the strsignal() function returns a
pointer to a string containing an unspecified message denoting an
unknown signal. POSIX.1‐2008 leaves this return value
unspecified.
None.
psiginfo(3p), setlocale(3p)
The Base Definitions volume of POSIX.1‐2017, string.h(0p)
Portions of this text are reprinted and reproduced in electronic
form from IEEE Std 1003.1-2017, Standard for Information
Technology -- Portable Operating System Interface (POSIX), The
Open Group Base Specifications Issue 7, 2018 Edition, Copyright
(C) 2018 by the Institute of Electrical and Electronics
Engineers, Inc and The Open Group. In the event of any
discrepancy between this version and the original IEEE and The
Open Group Standard, the original IEEE and The Open Group
Standard is the referee document. The original Standard can be
obtained online at http://www.opengroup.org/unix/online.html .
Any typographical or formatting errors that appear in this page
are most likely to have been introduced during the conversion of
the source files to man page format. To report such errors, see
https://www.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group 2017 STRSIGNAL(3P)
Pages that refer to this page: string.h(0p), psiginfo(3p), setlocale(3p)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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