3 * Copyright (c) 1999-2004 Damien Miller <djm@mindrot.org>
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.
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.
20 #include <sys/types.h>
21 #ifdef HAVE_SYS_SELECT_H
22 # include <sys/select.h>
24 #ifdef HAVE_SYS_TIME_H
25 # include <sys/time.h>
34 #ifndef HAVE___PROGNAME
39 * NB. duplicate __progname in case it is an alias for argv[0]
40 * Otherwise it may get clobbered by setproctitle()
42 char *ssh_get_progname(char *argv0)
45 #ifdef HAVE___PROGNAME
46 extern char *__progname;
51 return ("unknown"); /* XXX */
52 p = strrchr(argv0, '/');
58 if ((q = strdup(p)) == NULL) {
66 int setlogin(const char *name)
70 #endif /* !HAVE_SETLOGIN */
73 int innetgr(const char *netgroup, const char *host,
74 const char *user, const char *domain)
78 #endif /* HAVE_INNETGR */
80 #if !defined(HAVE_SETEUID) && defined(HAVE_SETREUID)
81 int seteuid(uid_t euid)
83 return (setreuid(-1, euid));
85 #endif /* !defined(HAVE_SETEUID) && defined(HAVE_SETREUID) */
87 #if !defined(HAVE_SETEGID) && defined(HAVE_SETRESGID)
88 int setegid(uid_t egid)
90 return(setresgid(-1, egid, -1));
92 #endif /* !defined(HAVE_SETEGID) && defined(HAVE_SETRESGID) */
94 #if !defined(HAVE_STRERROR) && defined(HAVE_SYS_ERRLIST) && defined(HAVE_SYS_NERR)
95 const char *strerror(int e)
98 extern char *sys_errlist[];
100 if ((e >= 0) && (e < sys_nerr))
101 return (sys_errlist[e]);
103 return ("unlisted error");
107 #if !defined(HAVE_STRSIGNAL)
108 char *strsignal(int sig)
112 (void)snprintf(buf, sizeof(buf), "%d", sig);
118 int utimes(char *filename, struct timeval *tvp)
122 ub.actime = tvp[0].tv_sec;
123 ub.modtime = tvp[1].tv_sec;
125 return (utime(filename, &ub));
129 #ifndef HAVE_TRUNCATE
130 int truncate(const char *path, off_t length)
132 int fd, ret, saverrno;
134 fd = open(path, O_WRONLY);
138 ret = ftruncate(fd, length);
146 #endif /* HAVE_TRUNCATE */
148 #if !defined(HAVE_NANOSLEEP) && !defined(HAVE_NSLEEP)
149 int nanosleep(const struct timespec *req, struct timespec *rem)
153 struct timeval tstart, tstop, tremain, time2wait;
155 TIMESPEC_TO_TIMEVAL(&time2wait, req)
156 (void) gettimeofday(&tstart, NULL);
157 rc = select(0, NULL, NULL, NULL, &time2wait);
160 (void) gettimeofday (&tstop, NULL);
162 tremain.tv_sec = time2wait.tv_sec -
163 (tstop.tv_sec - tstart.tv_sec);
164 tremain.tv_usec = time2wait.tv_usec -
165 (tstop.tv_usec - tstart.tv_usec);
166 tremain.tv_sec += tremain.tv_usec / 1000000L;
167 tremain.tv_usec %= 1000000L;
173 TIMEVAL_TO_TIMESPEC(&tremain, rem)
179 #if !defined(HAVE_USLEEP)
180 int usleep(unsigned int useconds)
184 ts.tv_sec = useconds / 1000000;
185 ts.tv_nsec = (useconds % 1000000) * 1000;
186 return nanosleep(&ts, NULL);
190 #ifndef HAVE_TCGETPGRP
196 if (ioctl(fd, TIOCGPGRP, &ctty_pgrp) == -1)
201 #endif /* HAVE_TCGETPGRP */
203 #ifndef HAVE_TCSENDBREAK
205 tcsendbreak(int fd, int duration)
207 # if defined(TIOCSBRK) && defined(TIOCCBRK)
208 struct timeval sleepytime;
210 sleepytime.tv_sec = 0;
211 sleepytime.tv_usec = 400000;
212 if (ioctl(fd, TIOCSBRK, 0) == -1)
214 (void)select(0, 0, 0, 0, &sleepytime);
215 if (ioctl(fd, TIOCCBRK, 0) == -1)
222 #endif /* HAVE_TCSENDBREAK */
225 mysignal(int sig, mysig_t act)
227 #ifdef HAVE_SIGACTION
228 struct sigaction sa, osa;
230 if (sigaction(sig, NULL, &osa) == -1)
232 if (osa.sa_handler != act) {
233 memset(&sa, 0, sizeof(sa));
234 sigemptyset(&sa.sa_mask);
238 sa.sa_flags |= SA_INTERRUPT;
241 if (sigaction(sig, &sa, NULL) == -1)
244 return (osa.sa_handler);
247 return (signal(sig, act));
253 strdup(const char *str)
258 len = strlen(str) + 1;
261 return(memcpy(cp, str, len));
270 return (c == ' ' || c == '\t');
278 #if defined(HAVE_GETPGRP) && !defined(GETPGRP_VOID)
280 #elif defined(HAVE_GETPGRP)
292 pledge(const char *promises, const char *paths[])
299 /* a mbtowc that only supports ASCII */
301 mbtowc(wchar_t *pwc, const char *s, size_t n)
303 if (s == NULL || *s == '\0')
304 return 0; /* ASCII is not state-dependent */
305 if (*s < 0 || *s > 0x7f || n < 1) {
319 return (j < 0 ? -j : j);