projects / thirdparty / man-pages.git / blame
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1 | .\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk) |
| 2 | .\" | |
| 3 | .\" Permission is granted to make and distribute verbatim copies of this | |
| 4 | .\" manual provided the copyright notice and this permission notice are | |
| 5 | .\" preserved on all copies. | |
| 6 | .\" | |
| 7 | .\" Permission is granted to copy and distribute modified versions of this | |
| 8 | .\" manual under the conditions for verbatim copying, provided that the | |
| 9 | .\" entire resulting derived work is distributed under the terms of a | |
| 10 | .\" permission notice identical to this one. | |
| c13182ef | 11 | .\" |
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12 | .\" Since the Linux kernel and libraries are constantly changing, this |
| 13 | .\" manual page may be incorrect or out-of-date. The author(s) assume no | |
| 14 | .\" responsibility for errors or omissions, or for damages resulting from | |
| 15 | .\" the use of the information contained herein. The author(s) may not | |
| 16 | .\" have taken the same level of care in the production of this manual, | |
| 17 | .\" which is licensed free of charge, as they might when working | |
| 18 | .\" professionally. | |
| c13182ef | 19 | .\" |
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20 | .\" Formatted or processed versions of this manual, if unaccompanied by |
| 21 | .\" the source, must acknowledge the copyright and authors of this work. | |
| 22 | .\" | |
| 23 | .\" References consulted: | |
| 24 | .\" Linux libc source code | |
| 25 | .\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991) | |
| 26 | .\" 386BSD man pages | |
| 27 | .\" Modified Sat Jul 24 17:59:03 1993 by Rik Faith (faith@cs.unc.edu) | |
| 235063a0 | 28 | .TH STRSIGNAL 3 2010-09-15 "GNU" "Linux Programmer's Manual" |
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29 | .SH NAME |
| 30 | strsignal \- return string describing signal | |
| 31 | .SH SYNOPSIS | |
| 32 | .nf | |
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33 | .B #include <string.h> |
| 34 | .sp | |
| 35 | .BI "char *strsignal(int " sig ); | |
| 36 | .sp | |
| 37 | .BI "extern const char * const " sys_siglist []; | |
| 38 | .fi | |
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39 | .sp |
| 40 | .in -4n | |
| 41 | Feature Test Macro Requirements for glibc (see | |
| 42 | .BR feature_test_macros (7)): | |
| 43 | .in | |
| 44 | .sp | |
| 45 | .BR strsignal (): | |
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46 | .PD 0 |
| 47 | .ad l | |
| 48 | .RS 4 | |
| 49 | .TP 4 | |
| 50 | Since glibc 2.10: | |
| 51 | _XOPEN_SOURCE\ >=\ 700 || _POSIX_C_SOURCE\ >=\ 200809L | |
| 52 | .TP | |
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53 | Before glibc 2.10: |
| 54 | _GNU_SOURCE | |
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55 | .RE |
| 56 | .ad | |
| 57 | .PD | |
| fea681da | 58 | .SH DESCRIPTION |
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59 | The |
| 60 | .BR strsignal () | |
| 61 | function returns a string describing the signal | |
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62 | number passed in the argument \fIsig\fP. |
| 63 | The string can only be used | |
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64 | until the next call to |
| 65 | .BR strsignal (). | |
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66 | .PP |
| 67 | The array \fIsys_siglist\fP holds the signal description strings | |
| c13182ef | 68 | indexed by signal number. |
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69 | The |
| 70 | .BR strsignal () | |
| 71 | function should be | |
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72 | used if possible instead of this array. |
| 73 | .SH "RETURN VALUE" | |
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74 | The |
| 75 | .BR strsignal () | |
| 76 | function returns the appropriate description | |
| fea681da | 77 | string, or an unknown signal message if the signal number is invalid. |
| 35e21ba7 | 78 | On some systems (but not on Linux), a NULL pointer may be |
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79 | returned instead for an invalid signal number. |
| 80 | .SH "CONFORMING TO" | |
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81 | POSIX.1-2008. |
| 82 | Present on Solaris and the BSDs. | |
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83 | .SH "SEE ALSO" |
| 84 | .BR psignal (3), | |
| 0a4f8b7b | 85 | .BR strerror (3) |