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.
21 RCSID("$Id: bsd-misc.c,v 1.27 2005/05/27 11:13:41 dtucker Exp $");
23 #ifndef HAVE___PROGNAME
28 * NB. duplicate __progname in case it is an alias for argv[0]
29 * Otherwise it may get clobbered by setproctitle()
31 char *ssh_get_progname(char *argv0)
33 #ifdef HAVE___PROGNAME
34 extern char *__progname;
36 return xstrdup(__progname);
41 return ("unknown"); /* XXX */
42 p = strrchr(argv0, '/');
53 int setlogin(const char *name)
57 #endif /* !HAVE_SETLOGIN */
60 int innetgr(const char *netgroup, const char *host,
61 const char *user, const char *domain)
65 #endif /* HAVE_INNETGR */
67 #if !defined(HAVE_SETEUID) && defined(HAVE_SETREUID)
68 int seteuid(uid_t euid)
70 return (setreuid(-1, euid));
72 #endif /* !defined(HAVE_SETEUID) && defined(HAVE_SETREUID) */
74 #if !defined(HAVE_SETEGID) && defined(HAVE_SETRESGID)
75 int setegid(uid_t egid)
77 return(setresgid(-1, egid, -1));
79 #endif /* !defined(HAVE_SETEGID) && defined(HAVE_SETRESGID) */
81 #if !defined(HAVE_STRERROR) && defined(HAVE_SYS_ERRLIST) && defined(HAVE_SYS_NERR)
82 const char *strerror(int e)
85 extern char *sys_errlist[];
87 if ((e >= 0) && (e < sys_nerr))
88 return (sys_errlist[e]);
90 return ("unlisted error");
95 int utimes(char *filename, struct timeval *tvp)
99 ub.actime = tvp[0].tv_sec;
100 ub.modtime = tvp[1].tv_sec;
102 return (utime(filename, &ub));
106 #ifndef HAVE_TRUNCATE
107 int truncate(const char *path, off_t length)
109 int fd, ret, saverrno;
111 fd = open(path, O_WRONLY);
115 ret = ftruncate(fd, length);
123 #endif /* HAVE_TRUNCATE */
125 #if !defined(HAVE_NANOSLEEP) && !defined(HAVE_NSLEEP)
126 int nanosleep(const struct timespec *req, struct timespec *rem)
130 struct timeval tstart, tstop, tremain, time2wait;
132 TIMESPEC_TO_TIMEVAL(&time2wait, req)
133 (void) gettimeofday(&tstart, NULL);
134 rc = select(0, NULL, NULL, NULL, &time2wait);
137 (void) gettimeofday (&tstop, NULL);
139 tremain.tv_sec = time2wait.tv_sec -
140 (tstop.tv_sec - tstart.tv_sec);
141 tremain.tv_usec = time2wait.tv_usec -
142 (tstop.tv_usec - tstart.tv_usec);
143 tremain.tv_sec += tremain.tv_usec / 1000000L;
144 tremain.tv_usec %= 1000000L;
149 TIMEVAL_TO_TIMESPEC(&tremain, rem)
155 #ifndef HAVE_TCGETPGRP
161 if (ioctl(fd, TIOCGPGRP, &ctty_pgrp) == -1)
166 #endif /* HAVE_TCGETPGRP */
168 #ifndef HAVE_TCSENDBREAK
170 tcsendbreak(int fd, int duration)
172 # if defined(TIOCSBRK) && defined(TIOCCBRK)
173 struct timeval sleepytime;
175 sleepytime.tv_sec = 0;
176 sleepytime.tv_usec = 400000;
177 if (ioctl(fd, TIOCSBRK, 0) == -1)
179 (void)select(0, 0, 0, 0, &sleepytime);
180 if (ioctl(fd, TIOCCBRK, 0) == -1)
187 #endif /* HAVE_TCSENDBREAK */
190 mysignal(int sig, mysig_t act)
192 #ifdef HAVE_SIGACTION
193 struct sigaction sa, osa;
195 if (sigaction(sig, NULL, &osa) == -1)
197 if (osa.sa_handler != act) {
198 memset(&sa, 0, sizeof(sa));
199 sigemptyset(&sa.sa_mask);
203 sa.sa_flags |= SA_INTERRUPT;
206 if (sigaction(sig, &sa, NULL) == -1)
209 return (osa.sa_handler);
212 return (signal(sig, act));
218 strdup(const char *str)
223 len = strlen(str) + 1;
226 if (strlcpy(cp, str, len) != len) {