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sig2str.c

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1/* sig2str.c -- convert between signal names and numbers-
2-
3 Copyright (C) 2002, 2004, 2006, 2009-2018 Free Software Foundation, Inc.-
4-
5 This program is free software: you can redistribute it and/or modify-
6 it under the terms of the GNU General Public License as published by-
7 the Free Software Foundation; either version 3 of the License, or-
8 (at your option) any later version.-
9-
10 This program is distributed in the hope that it will be useful,-
11 but WITHOUT ANY WARRANTY; without even the implied warranty of-
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the-
13 GNU General Public License for more details.-
14-
15 You should have received a copy of the GNU General Public License-
16 along with this program. If not, see <https://www.gnu.org/licenses/>. */-
17-
18/* Written by Paul Eggert. */-
19-
20#include <config.h>-
21-
22#include <limits.h>-
23#include <signal.h>-
24#include <stdlib.h>-
25#include <stdio.h>-
26#include <string.h>-
27-
28#include "sig2str.h"-
29-
30#ifndef SIGRTMIN-
31# define SIGRTMIN 0-
32# undef SIGRTMAX-
33#endif-
34#ifndef SIGRTMAX-
35# define SIGRTMAX (SIGRTMIN - 1)-
36#endif-
37-
38#define NUMNAME(name) { SIG##name, #name }-
39-
40/* Signal names and numbers. Put the preferred name first. */-
41static struct numname { int num; char const name[8]; } numname_table[] =-
42 {-
43 /* Signals required by POSIX 1003.1-2001 base, listed in-
44 traditional numeric order where possible. */-
45#ifdef SIGHUP-
46 NUMNAME (HUP),-
47#endif-
48#ifdef SIGINT-
49 NUMNAME (INT),-
50#endif-
51#ifdef SIGQUIT-
52 NUMNAME (QUIT),-
53#endif-
54#ifdef SIGILL-
55 NUMNAME (ILL),-
56#endif-
57#ifdef SIGTRAP-
58 NUMNAME (TRAP),-
59#endif-
60#ifdef SIGABRT-
61 NUMNAME (ABRT),-
62#endif-
63#ifdef SIGFPE-
64 NUMNAME (FPE),-
65#endif-
66#ifdef SIGKILL-
67 NUMNAME (KILL),-
68#endif-
69#ifdef SIGSEGV-
70 NUMNAME (SEGV),-
71#endif-
72 /* On Haiku, SIGSEGV == SIGBUS, but we prefer SIGSEGV to match-
73 strsignal.c output, so SIGBUS must be listed second. */-
74#ifdef SIGBUS-
75 NUMNAME (BUS),-
76#endif-
77#ifdef SIGPIPE-
78 NUMNAME (PIPE),-
79#endif-
80#ifdef SIGALRM-
81 NUMNAME (ALRM),-
82#endif-
83#ifdef SIGTERM-
84 NUMNAME (TERM),-
85#endif-
86#ifdef SIGUSR1-
87 NUMNAME (USR1),-
88#endif-
89#ifdef SIGUSR2-
90 NUMNAME (USR2),-
91#endif-
92#ifdef SIGCHLD-
93 NUMNAME (CHLD),-
94#endif-
95#ifdef SIGURG-
96 NUMNAME (URG),-
97#endif-
98#ifdef SIGSTOP-
99 NUMNAME (STOP),-
100#endif-
101#ifdef SIGTSTP-
102 NUMNAME (TSTP),-
103#endif-
104#ifdef SIGCONT-
105 NUMNAME (CONT),-
106#endif-
107#ifdef SIGTTIN-
108 NUMNAME (TTIN),-
109#endif-
110#ifdef SIGTTOU-
111 NUMNAME (TTOU),-
112#endif-
113-
114 /* Signals required by POSIX 1003.1-2001 with the XSI extension. */-
115#ifdef SIGSYS-
116 NUMNAME (SYS),-
117#endif-
118#ifdef SIGPOLL-
119 NUMNAME (POLL),-
120#endif-
121#ifdef SIGVTALRM-
122 NUMNAME (VTALRM),-
123#endif-
124#ifdef SIGPROF-
125 NUMNAME (PROF),-
126#endif-
127#ifdef SIGXCPU-
128 NUMNAME (XCPU),-
129#endif-
130#ifdef SIGXFSZ-
131 NUMNAME (XFSZ),-
132#endif-
133-
134 /* Unix Version 7. */-
135#ifdef SIGIOT-
136 NUMNAME (IOT), /* Older name for ABRT. */-
137#endif-
138#ifdef SIGEMT-
139 NUMNAME (EMT),-
140#endif-
141-
142 /* USG Unix. */-
143#ifdef SIGPHONE-
144 NUMNAME (PHONE),-
145#endif-
146#ifdef SIGWIND-
147 NUMNAME (WIND),-
148#endif-
149-
150 /* Unix System V. */-
151#ifdef SIGCLD-
152 NUMNAME (CLD),-
153#endif-
154#ifdef SIGPWR-
155 NUMNAME (PWR),-
156#endif-
157-
158 /* GNU/Linux 2.2 and Solaris 8. */-
159#ifdef SIGCANCEL-
160 NUMNAME (CANCEL),-
161#endif-
162#ifdef SIGLWP-
163 NUMNAME (LWP),-
164#endif-
165#ifdef SIGWAITING-
166 NUMNAME (WAITING),-
167#endif-
168#ifdef SIGFREEZE-
169 NUMNAME (FREEZE),-
170#endif-
171#ifdef SIGTHAW-
172 NUMNAME (THAW),-
173#endif-
174#ifdef SIGLOST-
175 NUMNAME (LOST),-
176#endif-
177#ifdef SIGWINCH-
178 NUMNAME (WINCH),-
179#endif-
180-
181 /* GNU/Linux 2.2. */-
182#ifdef SIGINFO-
183 NUMNAME (INFO),-
184#endif-
185#ifdef SIGIO-
186 NUMNAME (IO),-
187#endif-
188#ifdef SIGSTKFLT-
189 NUMNAME (STKFLT),-
190#endif-
191-
192 /* AIX 5L. */-
193#ifdef SIGDANGER-
194 NUMNAME (DANGER),-
195#endif-
196#ifdef SIGGRANT-
197 NUMNAME (GRANT),-
198#endif-
199#ifdef SIGMIGRATE-
200 NUMNAME (MIGRATE),-
201#endif-
202#ifdef SIGMSG-
203 NUMNAME (MSG),-
204#endif-
205#ifdef SIGPRE-
206 NUMNAME (PRE),-
207#endif-
208#ifdef SIGRETRACT-
209 NUMNAME (RETRACT),-
210#endif-
211#ifdef SIGSAK-
212 NUMNAME (SAK),-
213#endif-
214#ifdef SIGSOUND-
215 NUMNAME (SOUND),-
216#endif-
217-
218 /* Older AIX versions. */-
219#ifdef SIGALRM1-
220 NUMNAME (ALRM1), /* unknown; taken from Bash 2.05 */-
221#endif-
222#ifdef SIGKAP-
223 NUMNAME (KAP), /* Older name for SIGGRANT. */-
224#endif-
225#ifdef SIGVIRT-
226 NUMNAME (VIRT), /* unknown; taken from Bash 2.05 */-
227#endif-
228#ifdef SIGWINDOW-
229 NUMNAME (WINDOW), /* Older name for SIGWINCH. */-
230#endif-
231-
232 /* BeOS */-
233#ifdef SIGKILLTHR-
234 NUMNAME (KILLTHR),-
235#endif-
236-
237 /* Older HP-UX versions. */-
238#ifdef SIGDIL-
239 NUMNAME (DIL),-
240#endif-
241-
242 /* Korn shell and Bash, of uncertain vintage. */-
243 { 0, "EXIT" }-
244 };-
245-
246#define NUMNAME_ENTRIES (sizeof numname_table / sizeof numname_table[0])-
247-
248/* ISDIGIT differs from isdigit, as follows:-
249 - Its arg may be any int or unsigned int; it need not be an unsigned char-
250 or EOF.-
251 - It's typically faster.-
252 POSIX says that only '0' through '9' are digits. Prefer ISDIGIT to-
253 isdigit unless it's important to use the locale's definition-
254 of "digit" even when the host does not conform to POSIX. */-
255#define ISDIGIT(c) ((unsigned int) (c) - '0' <= 9)-
256-
257/* Convert the signal name SIGNAME to a signal number. Return the-
258 signal number if successful, -1 otherwise. */-
259-
260static int-
261str2signum (char const *signame)-
262{-
263 if (ISDIGIT (*signame))
((unsigned int...e) - '0' <= 9)Description
TRUEnever evaluated
FALSEevaluated 16 times by 2 tests
Evaluated by:
  • kill
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0-16
264 {-
265 char *endp;-
266 long int n = strtol (signame, &endp, 10);-
267 if (! *endp && n <= SIGNUM_BOUND)
! *endpDescription
TRUEnever evaluated
FALSEnever evaluated
n <= ( 65 - 1)Description
TRUEnever evaluated
FALSEnever evaluated
0
268 return n;
never executed: return n;
0
269 }
never executed: end of block
0
270 else-
271 {-
272 unsigned int i;-
273 for (i = 0; i < NUMNAME_ENTRIES; i++)
i < (sizeof nu...name_table[0])Description
TRUEevaluated 318 times by 2 tests
Evaluated by:
  • kill
  • timeout
FALSEevaluated 6 times by 2 tests
Evaluated by:
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6-318
274 if (strcmp (numname_table[i].name, signame) == 0)
never executed: __result = (((const unsigned char *) (const char *) ( numname_table[i].name ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
never executed: __result = (((const unsigned char *) (const char *) ( signame ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
__extension__ ... )))); }) == 0Description
TRUEevaluated 10 times by 2 tests
Evaluated by:
  • kill
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FALSEevaluated 308 times by 2 tests
Evaluated by:
  • kill
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__s1_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
0-308
275 return numname_table[i].num;
executed 10 times by 2 tests: return numname_table[i].num;
Executed by:
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10
276-
277 {-
278 char *endp;-
279 int rtmin = SIGRTMIN;-
280 int rtmax = SIGRTMAX;-
281-
282 if (0 < rtmin && strncmp (signame, "RTMIN", 5) == 0)
never executed: __result = (((const unsigned char *) (const char *) ( signame ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
never executed: __result = (((const unsigned char *) (const char *) ( "RTMIN" ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
0 < rtminDescription
TRUEevaluated 6 times by 2 tests
Evaluated by:
  • kill
  • timeout
FALSEnever evaluated
(__extension__..." , 5 ))) == 0Description
TRUEnever evaluated
FALSEevaluated 6 times by 2 tests
Evaluated by:
  • kill
  • timeout
__builtin_constant_p ( 5 )Description
TRUEevaluated 6 times by 2 tests
Evaluated by:
  • kill
  • timeout
FALSEnever evaluated
__builtin_cons..._p ( signame )Description
TRUEnever evaluated
FALSEevaluated 6 times by 2 tests
Evaluated by:
  • kill
  • timeout
strlen ( signa...size_t) ( 5 ))Description
TRUEnever evaluated
FALSEnever evaluated
__builtin_cons..._p ( "RTMIN" )Description
TRUEevaluated 6 times by 2 tests
Evaluated by:
  • kill
  • timeout
FALSEnever evaluated
strlen ( "RTMI...size_t) ( 5 ))Description
TRUEnever evaluated
FALSEevaluated 6 times by 2 tests
Evaluated by:
  • kill
  • timeout
__s1_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
0-6
283 {-
284 long int n = strtol (signame + 5, &endp, 10);-
285 if (! *endp && 0 <= n && n <= rtmax - rtmin)
! *endpDescription
TRUEnever evaluated
FALSEnever evaluated
0 <= nDescription
TRUEnever evaluated
FALSEnever evaluated
n <= rtmax - rtminDescription
TRUEnever evaluated
FALSEnever evaluated
0
286 return rtmin + n;
never executed: return rtmin + n;
0
287 }
never executed: end of block
0
288 else if (0 < rtmax && strncmp (signame, "RTMAX", 5) == 0)
never executed: __result = (((const unsigned char *) (const char *) ( signame ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
never executed: __result = (((const unsigned char *) (const char *) ( "RTMAX" ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
0 < rtmaxDescription
TRUEevaluated 6 times by 2 tests
Evaluated by:
  • kill
  • timeout
FALSEnever evaluated
(__extension__..." , 5 ))) == 0Description
TRUEnever evaluated
FALSEevaluated 6 times by 2 tests
Evaluated by:
  • kill
  • timeout
__builtin_constant_p ( 5 )Description
TRUEevaluated 6 times by 2 tests
Evaluated by:
  • kill
  • timeout
FALSEnever evaluated
__builtin_cons..._p ( signame )Description
TRUEnever evaluated
FALSEevaluated 6 times by 2 tests
Evaluated by:
  • kill
  • timeout
strlen ( signa...size_t) ( 5 ))Description
TRUEnever evaluated
FALSEnever evaluated
__builtin_cons..._p ( "RTMAX" )Description
TRUEevaluated 6 times by 2 tests
Evaluated by:
  • kill
  • timeout
FALSEnever evaluated
strlen ( "RTMA...size_t) ( 5 ))Description
TRUEnever evaluated
FALSEevaluated 6 times by 2 tests
Evaluated by:
  • kill
  • timeout
__s1_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
0-6
289 {-
290 long int n = strtol (signame + 5, &endp, 10);-
291 if (! *endp && rtmin - rtmax <= n && n <= 0)
! *endpDescription
TRUEnever evaluated
FALSEnever evaluated
rtmin - rtmax <= nDescription
TRUEnever evaluated
FALSEnever evaluated
n <= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
292 return rtmax + n;
never executed: return rtmax + n;
0
293 }
never executed: end of block
0
294 }-
295 }
executed 6 times by 2 tests: end of block
Executed by:
  • kill
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6
296-
297 return -1;
executed 6 times by 2 tests: return -1;
Executed by:
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6
298}-
299-
300/* Convert the signal name SIGNAME to the signal number *SIGNUM.-
301 Return 0 if successful, -1 otherwise. */-
302-
303int-
304str2sig (char const *signame, int *signum)-
305{-
306 *signum = str2signum (signame);-
307 return *signum < 0 ? -1 : 0;
executed 16 times by 2 tests: return *signum < 0 ? -1 : 0;
Executed by:
  • kill
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16
308}-
309-
310/* Convert SIGNUM to a signal name in SIGNAME. SIGNAME must point to-
311 a buffer of at least SIG2STR_MAX bytes. Return 0 if successful, -1-
312 otherwise. */-
313-
314int-
315sig2str (int signum, char *signame)-
316{-
317 unsigned int i;-
318 for (i = 0; i < NUMNAME_ENTRIES; i++)
i < (sizeof nu...name_table[0])Description
TRUEevaluated 10307 times by 2 tests
Evaluated by:
  • kill
  • timeout
FALSEevaluated 198 times by 1 test
Evaluated by:
  • kill
198-10307
319 if (numname_table[i].num == signum)
numname_table[i].num == signumDescription
TRUEevaluated 207 times by 2 tests
Evaluated by:
  • kill
  • timeout
FALSEevaluated 10100 times by 2 tests
Evaluated by:
  • kill
  • timeout
207-10100
320 {-
321 strcpy (signame, numname_table[i].name);-
322 return 0;
executed 207 times by 2 tests: return 0;
Executed by:
  • kill
  • timeout
207
323 }-
324-
325 {-
326 int rtmin = SIGRTMIN;-
327 int rtmax = SIGRTMAX;-
328 int base, delta;-
329-
330 if (! (rtmin <= signum && signum <= rtmax))
rtmin <= signumDescription
TRUEevaluated 186 times by 1 test
Evaluated by:
  • kill
FALSEevaluated 12 times by 1 test
Evaluated by:
  • kill
signum <= rtmaxDescription
TRUEevaluated 186 times by 1 test
Evaluated by:
  • kill
FALSEnever evaluated
0-186
331 return -1;
executed 12 times by 1 test: return -1;
Executed by:
  • kill
12
332-
333 if (signum <= rtmin + (rtmax - rtmin) / 2)
signum <= rtmi...x - rtmin) / 2Description
TRUEevaluated 96 times by 1 test
Evaluated by:
  • kill
FALSEevaluated 90 times by 1 test
Evaluated by:
  • kill
90-96
334 {-
335 strcpy (signame, "RTMIN");-
336 base = rtmin;-
337 }
executed 96 times by 1 test: end of block
Executed by:
  • kill
96
338 else-
339 {-
340 strcpy (signame, "RTMAX");-
341 base = rtmax;-
342 }
executed 90 times by 1 test: end of block
Executed by:
  • kill
90
343-
344 delta = signum - base;-
345 if (delta != 0)
delta != 0Description
TRUEevaluated 174 times by 1 test
Evaluated by:
  • kill
FALSEevaluated 12 times by 1 test
Evaluated by:
  • kill
12-174
346 sprintf (signame + 5, "%+d", delta);
executed 174 times by 1 test: sprintf (signame + 5, "%+d", delta);
Executed by:
  • kill
174
347 return 0;
executed 186 times by 1 test: return 0;
Executed by:
  • kill
186
348 }-
349}-
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