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1 | .\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk) |
2 | .\" | |
93015253 | 3 | .\" %%%LICENSE_START(VERBATIM) |
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4 | .\" Permission is granted to make and distribute verbatim copies of this |
5 | .\" manual provided the copyright notice and this permission notice are | |
6 | .\" preserved on all copies. | |
7 | .\" | |
8 | .\" Permission is granted to copy and distribute modified versions of this | |
9 | .\" manual under the conditions for verbatim copying, provided that the | |
10 | .\" entire resulting derived work is distributed under the terms of a | |
11 | .\" permission notice identical to this one. | |
c13182ef | 12 | .\" |
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13 | .\" Since the Linux kernel and libraries are constantly changing, this |
14 | .\" manual page may be incorrect or out-of-date. The author(s) assume no | |
15 | .\" responsibility for errors or omissions, or for damages resulting from | |
16 | .\" the use of the information contained herein. The author(s) may not | |
17 | .\" have taken the same level of care in the production of this manual, | |
18 | .\" which is licensed free of charge, as they might when working | |
19 | .\" professionally. | |
c13182ef | 20 | .\" |
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21 | .\" Formatted or processed versions of this manual, if unaccompanied by |
22 | .\" the source, must acknowledge the copyright and authors of this work. | |
4b72fb64 | 23 | .\" %%%LICENSE_END |
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24 | .\" |
25 | .\" References consulted: | |
26 | .\" Linux libc source code | |
27 | .\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991) | |
28 | .\" 386BSD man pages | |
29 | .\" Modified Sat Jul 24 17:59:03 1993 by Rik Faith (faith@cs.unc.edu) | |
97986708 | 30 | .TH STRSIGNAL 3 2016-03-15 "GNU" "Linux Programmer's Manual" |
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31 | .SH NAME |
32 | strsignal \- return string describing signal | |
33 | .SH SYNOPSIS | |
34 | .nf | |
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35 | .B #include <string.h> |
36 | .sp | |
37 | .BI "char *strsignal(int " sig ); | |
38 | .sp | |
39 | .BI "extern const char * const " sys_siglist []; | |
40 | .fi | |
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41 | .sp |
42 | .in -4n | |
43 | Feature Test Macro Requirements for glibc (see | |
44 | .BR feature_test_macros (7)): | |
45 | .in | |
46 | .sp | |
47 | .BR strsignal (): | |
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48 | .PD 0 |
49 | .ad l | |
50 | .RS 4 | |
51 | .TP 4 | |
52 | Since glibc 2.10: | |
b0da7b8b | 53 | _POSIX_C_SOURCE\ >=\ 200809L |
ea91c3fd | 54 | .TP |
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55 | Before glibc 2.10: |
56 | _GNU_SOURCE | |
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57 | .RE |
58 | .ad | |
59 | .PD | |
fea681da | 60 | .SH DESCRIPTION |
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61 | The |
62 | .BR strsignal () | |
63 | function returns a string describing the signal | |
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64 | number passed in the argument |
65 | .IR sig . | |
33a0ccb2 | 66 | The string can be used only until the next call to |
60a90ecd | 67 | .BR strsignal (). |
fea681da | 68 | .PP |
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69 | The array |
70 | .I sys_siglist | |
71 | holds the signal description strings | |
c13182ef | 72 | indexed by signal number. |
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73 | The |
74 | .BR strsignal () | |
75 | function should be | |
fea681da | 76 | used if possible instead of this array. |
47297adb | 77 | .SH RETURN VALUE |
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78 | The |
79 | .BR strsignal () | |
80 | function returns the appropriate description | |
fea681da | 81 | string, or an unknown signal message if the signal number is invalid. |
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82 | On some systems (but not on Linux), NULL may instead be |
83 | returned for an invalid signal number. | |
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84 | .SH ATTRIBUTES |
85 | For an explanation of the terms used in this section, see | |
86 | .BR attributes (7). | |
87 | .TS | |
88 | allbox; | |
89 | lb lb lbw31 | |
90 | l l l. | |
91 | Interface Attribute Value | |
92 | T{ | |
93 | .BR strsignal () | |
94 | T} Thread safety MT-Unsafe race:strsignal locale | |
95 | .TE | |
96 | ||
47297adb | 97 | .SH CONFORMING TO |
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98 | POSIX.1-2008. |
99 | Present on Solaris and the BSDs. | |
47297adb | 100 | .SH SEE ALSO |
fea681da | 101 | .BR psignal (3), |
0a4f8b7b | 102 | .BR strerror (3) |