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bsd-misc.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/openssh/src/openbsd-compat/bsd-misc.c
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1-
2/*-
3 * Copyright (c) 1999-2004 Damien Miller <djm@mindrot.org>-
4 *-
5 * Permission to use, copy, modify, and distribute this software for any-
6 * purpose with or without fee is hereby granted, provided that the above-
7 * copyright notice and this permission notice appear in all copies.-
8 *-
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES-
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF-
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR-
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES-
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN-
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF-
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.-
16 */-
17-
18#include "includes.h"-
19-
20#include <sys/types.h>-
21#ifdef HAVE_SYS_SELECT_H-
22# include <sys/select.h>-
23#endif-
24#ifdef HAVE_SYS_TIME_H-
25# include <sys/time.h>-
26#endif-
27-
28#include <string.h>-
29#include <signal.h>-
30#include <stdlib.h>-
31#include <stdio.h>-
32#include <time.h>-
33#include <unistd.h>-
34-
35#ifndef HAVE___PROGNAME-
36char *__progname;-
37#endif-
38-
39/*-
40 * NB. duplicate __progname in case it is an alias for argv[0]-
41 * Otherwise it may get clobbered by setproctitle()-
42 */-
43char *ssh_get_progname(char *argv0)-
44{-
45 char *p, *q;-
46#ifdef HAVE___PROGNAME-
47 extern char *__progname;-
48-
49 p = __progname;-
50#else-
51 if (argv0 == NULL)-
52 return ("unknown"); /* XXX */-
53 p = strrchr(argv0, '/');-
54 if (p == NULL)-
55 p = argv0;-
56 else-
57 p++;-
58#endif-
59 if ((q = strdup(p)) == NULL) {
never executed: __retval = (char *) memcpy (__retval, p , __len);
(q = (__extens...== ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 30 times by 2 tests
Evaluated by:
  • ssh-keygen
  • sshd
__retval != ((void *)0)Description
TRUEnever evaluated
FALSEnever evaluated
((const char *... ))[0] == '\0'Description
TRUEnever evaluated
FALSEnever evaluated
__builtin_constant_p ( p )Description
TRUEnever evaluated
FALSEevaluated 30 times by 2 tests
Evaluated by:
  • ssh-keygen
  • sshd
((size_t)(cons... *)( p ) == 1)Description
TRUEnever evaluated
FALSEnever evaluated
0-30
60 perror("strdup");-
61 exit(1);
never executed: exit(1);
0
62 }-
63 return q;
executed 30 times by 2 tests: return q;
Executed by:
  • ssh-keygen
  • sshd
30
64}-
65-
66#ifndef HAVE_SETLOGIN-
67int setlogin(const char *name)-
68{-
69 return (0);
never executed: return (0);
0
70}-
71#endif /* !HAVE_SETLOGIN */-
72-
73#ifndef HAVE_INNETGR-
74int innetgr(const char *netgroup, const char *host,-
75 const char *user, const char *domain)-
76{-
77 return (0);-
78}-
79#endif /* HAVE_INNETGR */-
80-
81#if !defined(HAVE_SETEUID) && defined(HAVE_SETREUID)-
82int seteuid(uid_t euid)-
83{-
84 return (setreuid(-1, euid));-
85}-
86#endif /* !defined(HAVE_SETEUID) && defined(HAVE_SETREUID) */-
87-
88#if !defined(HAVE_SETEGID) && defined(HAVE_SETRESGID)-
89int setegid(uid_t egid)-
90{-
91 return(setresgid(-1, egid, -1));-
92}-
93#endif /* !defined(HAVE_SETEGID) && defined(HAVE_SETRESGID) */-
94-
95#if !defined(HAVE_STRERROR) && defined(HAVE_SYS_ERRLIST) && defined(HAVE_SYS_NERR)-
96const char *strerror(int e)-
97{-
98 extern int sys_nerr;-
99 extern char *sys_errlist[];-
100-
101 if ((e >= 0) && (e < sys_nerr))-
102 return (sys_errlist[e]);-
103-
104 return ("unlisted error");-
105}-
106#endif-
107-
108#ifndef HAVE_UTIMES-
109int utimes(char *filename, struct timeval *tvp)-
110{-
111 struct utimbuf ub;-
112-
113 ub.actime = tvp[0].tv_sec;-
114 ub.modtime = tvp[1].tv_sec;-
115-
116 return (utime(filename, &ub));-
117}-
118#endif-
119-
120#ifndef HAVE_TRUNCATE-
121int truncate(const char *path, off_t length)-
122{-
123 int fd, ret, saverrno;-
124-
125 fd = open(path, O_WRONLY);-
126 if (fd < 0)-
127 return (-1);-
128-
129 ret = ftruncate(fd, length);-
130 saverrno = errno;-
131 close(fd);-
132 if (ret == -1)-
133 errno = saverrno;-
134-
135 return(ret);-
136}-
137#endif /* HAVE_TRUNCATE */-
138-
139#if !defined(HAVE_NANOSLEEP) && !defined(HAVE_NSLEEP)-
140int nanosleep(const struct timespec *req, struct timespec *rem)-
141{-
142 int rc, saverrno;-
143 extern int errno;-
144 struct timeval tstart, tstop, tremain, time2wait;-
145-
146 TIMESPEC_TO_TIMEVAL(&time2wait, req)-
147 (void) gettimeofday(&tstart, NULL);-
148 rc = select(0, NULL, NULL, NULL, &time2wait);-
149 if (rc == -1) {-
150 saverrno = errno;-
151 (void) gettimeofday (&tstop, NULL);-
152 errno = saverrno;-
153 tremain.tv_sec = time2wait.tv_sec --
154 (tstop.tv_sec - tstart.tv_sec);-
155 tremain.tv_usec = time2wait.tv_usec --
156 (tstop.tv_usec - tstart.tv_usec);-
157 tremain.tv_sec += tremain.tv_usec / 1000000L;-
158 tremain.tv_usec %= 1000000L;-
159 } else {-
160 tremain.tv_sec = 0;-
161 tremain.tv_usec = 0;-
162 }-
163 if (rem != NULL)-
164 TIMEVAL_TO_TIMESPEC(&tremain, rem)-
165-
166 return(rc);-
167}-
168#endif-
169-
170#if !defined(HAVE_USLEEP)-
171int usleep(unsigned int useconds)-
172{-
173 struct timespec ts;-
174-
175 ts.tv_sec = useconds / 1000000;-
176 ts.tv_nsec = (useconds % 1000000) * 1000;-
177 return nanosleep(&ts, NULL);-
178}-
179#endif-
180-
181#ifndef HAVE_TCGETPGRP-
182pid_t-
183tcgetpgrp(int fd)-
184{-
185 int ctty_pgrp;-
186-
187 if (ioctl(fd, TIOCGPGRP, &ctty_pgrp) == -1)-
188 return(-1);-
189 else-
190 return(ctty_pgrp);-
191}-
192#endif /* HAVE_TCGETPGRP */-
193-
194#ifndef HAVE_TCSENDBREAK-
195int-
196tcsendbreak(int fd, int duration)-
197{-
198# if defined(TIOCSBRK) && defined(TIOCCBRK)-
199 struct timeval sleepytime;-
200-
201 sleepytime.tv_sec = 0;-
202 sleepytime.tv_usec = 400000;-
203 if (ioctl(fd, TIOCSBRK, 0) == -1)-
204 return (-1);-
205 (void)select(0, 0, 0, 0, &sleepytime);-
206 if (ioctl(fd, TIOCCBRK, 0) == -1)-
207 return (-1);-
208 return (0);-
209# else-
210 return -1;-
211# endif-
212}-
213#endif /* HAVE_TCSENDBREAK */-
214-
215#ifndef HAVE_STRDUP-
216char *-
217strdup(const char *str)-
218{-
219 size_t len;-
220 char *cp;-
221-
222 len = strlen(str) + 1;-
223 cp = malloc(len);-
224 if (cp != NULL)-
225 return(memcpy(cp, str, len));-
226 return NULL;-
227}-
228#endif-
229-
230#ifndef HAVE_ISBLANK-
231int-
232isblank(int c)-
233{-
234 return (c == ' ' || c == '\t');-
235}-
236#endif-
237-
238#ifndef HAVE_GETPGID-
239pid_t-
240getpgid(pid_t pid)-
241{-
242#if defined(HAVE_GETPGRP) && !defined(GETPGRP_VOID) && GETPGRP_VOID == 0-
243 return getpgrp(pid);-
244#elif defined(HAVE_GETPGRP)-
245 if (pid == 0)-
246 return getpgrp();-
247#endif-
248-
249 errno = ESRCH;-
250 return -1;-
251}-
252#endif-
253-
254#ifndef HAVE_PLEDGE-
255int-
256pledge(const char *promises, const char *paths[])-
257{-
258 return 0;
never executed: return 0;
0
259}-
260#endif-
261-
262#ifndef HAVE_MBTOWC-
263/* a mbtowc that only supports ASCII */-
264int-
265mbtowc(wchar_t *pwc, const char *s, size_t n)-
266{-
267 if (s == NULL || *s == '\0')-
268 return 0; /* ASCII is not state-dependent */-
269 if (*s < 0 || *s > 0x7f || n < 1) {-
270 errno = EOPNOTSUPP;-
271 return -1;-
272 }-
273 if (pwc != NULL)-
274 *pwc = *s;-
275 return 1;-
276}-
277#endif-
278-
279#ifndef HAVE_LLABS-
280long long-
281llabs(long long j)-
282{-
283 return (j < 0 ? -j : j);-
284}-
285#endif-
286-
287#ifndef HAVE_BZERO-
288void-
289bzero(void *b, size_t n)-
290{-
291 (void)memset(b, 0, n);-
292}-
293#endif-
294-
295#ifndef HAVE_RAISE-
296int-
297raise(int sig)-
298{-
299 kill(getpid(), sig);-
300}-
301#endif-
302-
303#ifndef HAVE_GETSID-
304pid_t-
305getsid(pid_t pid)-
306{-
307 errno = ENOSYS;-
308 return -1;-
309}-
310#endif-
311-
312#ifdef FFLUSH_NULL_BUG-
313#undef fflush-
314int _ssh_compat_fflush(FILE *f)-
315{-
316 int r1, r2;-
317-
318 if (f == NULL) {-
319 r1 = fflush(stdout);-
320 r2 = fflush(stderr);-
321 if (r1 == -1 || r2 == -1)-
322 return -1;-
323 return 0;-
324 }-
325 return fflush(f);-
326}-
327#endif-
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