summaryrefslogtreecommitdiffstats
path: root/workspace/networkDiscovery/dhcpcd/common.c
diff options
context:
space:
mode:
Diffstat (limited to 'workspace/networkDiscovery/dhcpcd/common.c')
-rw-r--r--workspace/networkDiscovery/dhcpcd/common.c249
1 files changed, 0 insertions, 249 deletions
diff --git a/workspace/networkDiscovery/dhcpcd/common.c b/workspace/networkDiscovery/dhcpcd/common.c
deleted file mode 100644
index 99471bc..0000000
--- a/workspace/networkDiscovery/dhcpcd/common.c
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
- * dhcpcd - DHCP client daemon
- * Copyright 2006-2008 Roy Marples <roy@marples.name>
- * All rights reserved
-
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/time.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include <unistd.h>
-
-#include "common.h"
-#include "logger.h"
-
-/* Handy routine to read very long lines in text files.
- * This means we read the whole line and avoid any nasty buffer overflows. */
-char *get_line (FILE *fp)
-{
- char *line = NULL;
- char *p;
- size_t len = 0;
- size_t last = 0;
-
- if (feof (fp))
- return (NULL);
-
- do {
- len += BUFSIZ;
- line = xrealloc (line, sizeof (char) * len);
- p = line + last;
- memset (p, 0, BUFSIZ);
- fgets (p, BUFSIZ, fp);
- last += strlen (p);
- } while (! feof (fp) && line[last - 1] != '\n');
-
- /* Trim the trailing newline */
- if (*line && line[--last] == '\n')
- line[last] = '\0';
-
- return (line);
-}
-
-/* OK, this should be in dhcpcd.c
- * It's here to make dhcpcd more readable */
-#ifndef HAVE_SRANDOMDEV
-void srandomdev (void)
-{
- int fd;
- unsigned long seed;
-
- fd = open ("/dev/urandom", 0);
- if (fd == -1 || read (fd, &seed, sizeof (seed)) == -1) {
- logger (LOG_WARNING, "Could not read from /dev/urandom: %s",
- strerror (errno));
- seed = time (0);
- }
- if (fd >= 0)
- close(fd);
-
- srandom (seed);
-}
-#endif
-
-/* strlcpy is nice, shame glibc does not define it */
-#ifndef HAVE_STRLCPY
-size_t strlcpy (char *dst, const char *src, size_t size)
-{
- const char *s = src;
- size_t n = size;
-
- if (n && --n)
- do {
- if (! (*dst++ = *src++))
- break;
- } while (--n);
-
- if (! n) {
- if (size)
- *dst = '\0';
- while (*src++);
- }
-
- return (src - s - 1);
-}
-#endif
-
-/* Close our fd's */
-int close_fds (void)
-{
- int fd;
-
- if ((fd = open ("/dev/null", O_RDWR)) == -1) {
- logger (LOG_ERR, "open `/dev/null': %s", strerror (errno));
- return (-1);
- }
-
- dup2 (fd, fileno (stdin));
- dup2 (fd, fileno (stdout));
- dup2 (fd, fileno (stderr));
- if (fd > 2)
- close (fd);
- return (0);
-}
-
-int close_on_exec (int fd)
-{
- int flags;
-
- if ((flags = fcntl (fd, F_GETFD, 0)) == -1
- || fcntl (fd, F_SETFD, flags | FD_CLOEXEC) == -1)
- {
- logger (LOG_ERR, "fcntl: %s", strerror (errno));
- return (-1);
- }
- return (0);
-}
-
-/* Handy function to get the time.
- * We only care about time advancements, not the actual time itself
- * Which is why we use CLOCK_MONOTONIC, but it is not available on all
- * platforms.
- */
-int get_time (struct timeval *tp)
-{
-#if defined(_POSIX_MONOTONIC_CLOCK) && defined(CLOCK_MONOTONIC)
- struct timespec ts;
- static clockid_t posix_clock;
- static int posix_clock_set = 0;
-
- if (! posix_clock_set) {
- if (sysconf (_SC_MONOTONIC_CLOCK) >= 0)
- posix_clock = CLOCK_MONOTONIC;
- else
- posix_clock = CLOCK_REALTIME;
- posix_clock_set = 1;
- }
-
- if (clock_gettime (posix_clock, &ts) == -1) {
- logger (LOG_ERR, "clock_gettime: %s", strerror (errno));
- return (-1);
- }
-
- tp->tv_sec = ts.tv_sec;
- tp->tv_usec = ts.tv_nsec / 1000;
- return (0);
-#else
- if (gettimeofday (tp, NULL) == -1) {
- logger (LOG_ERR, "gettimeofday: %s", strerror (errno));
- return (-1);
- }
- return (0);
-#endif
-}
-
-time_t uptime (void)
-{
- struct timeval tp;
-
- if (get_time (&tp) == -1)
- return (-1);
-
- return (tp.tv_sec);
-}
-
-void writepid (int fd, pid_t pid)
-{
- char spid[16];
- if (ftruncate (fd, (off_t) 0) == -1) {
- logger (LOG_ERR, "ftruncate: %s", strerror (errno));
- } else {
- ssize_t len;
- snprintf (spid, sizeof (spid), "%u", pid);
- len = pwrite (fd, spid, strlen (spid), (off_t) 0);
- if (len != (ssize_t) strlen (spid))
- logger (LOG_ERR, "pwrite: %s", strerror (errno));
- }
-}
-
-void *xmalloc (size_t s)
-{
- void *value = malloc (s);
-
- if (value)
- return (value);
-
- logger (LOG_ERR, "memory exhausted");
-
- exit (EXIT_FAILURE);
- /* NOTREACHED */
-}
-
-void *xzalloc (size_t s)
-{
- void *value = xmalloc (s);
- memset (value, 0, s);
- return (value);
-}
-
-void *xrealloc (void *ptr, size_t s)
-{
- void *value = realloc (ptr, s);
-
- if (value)
- return (value);
-
- logger (LOG_ERR, "memory exhausted");
- exit (EXIT_FAILURE);
- /* NOTREACHED */
-}
-
-char *xstrdup (const char *str)
-{
- char *value;
-
- if (! str)
- return (NULL);
-
- if ((value = strdup (str)))
- return (value);
-
- logger (LOG_ERR, "memory exhausted");
- exit (EXIT_FAILURE);
- /* NOTREACHED */
-}