#include <config.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/time.h>
#ifdef HAVE_FLOCK
# include <sys/file.h>
#endif
#include <stdio.h>
#ifdef HAVE_STRING_H
# include <string.h>
#else
# ifdef HAVE_STRINGS_H
# include <strings.h>
# endif
#endif
#include <ctype.h>
#include <limits.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <fcntl.h>
#if TIME_WITH_SYS_TIME
# include <time.h>
#endif
#ifndef HAVE_TIMESPEC
# include <emul/timespec.h>
#endif
#include "sudo.h"
#ifndef LINE_MAX
# define LINE_MAX 2048
#endif
#ifndef lint
__unused static const char rcsid[] = "$Sudo: fileops.c,v 1.16 2008/11/09 14:13:12 millert Exp $";
#endif
int
touch(fd, path, tsp)
int fd;
char *path;
struct timespec *tsp;
{
struct timeval times[2];
if (tsp != NULL) {
times[0].tv_sec = times[1].tv_sec = tsp->tv_sec;
times[0].tv_usec = times[1].tv_usec = tsp->tv_nsec / 1000;
}
#if defined(HAVE_FUTIME) || defined(HAVE_FUTIMES)
if (fd != -1)
return(futimes(fd, tsp ? times : NULL));
else
#endif
if (path != NULL)
return(utimes(path, tsp ? times : NULL));
else
return(-1);
}
#ifdef HAVE_LOCKF
int
lock_file(fd, lockit)
int fd;
int lockit;
{
int op = 0;
switch (lockit) {
case SUDO_LOCK:
op = F_LOCK;
break;
case SUDO_TLOCK:
op = F_TLOCK;
break;
case SUDO_UNLOCK:
op = F_ULOCK;
break;
}
return(lockf(fd, op, 0) == 0);
}
#elif HAVE_FLOCK
int
lock_file(fd, lockit)
int fd;
int lockit;
{
int op = 0;
switch (lockit) {
case SUDO_LOCK:
op = LOCK_EX;
break;
case SUDO_TLOCK:
op = LOCK_EX | LOCK_NB;
break;
case SUDO_UNLOCK:
op = LOCK_UN;
break;
}
return(flock(fd, op) == 0);
}
#else
int
lock_file(fd, lockit)
int fd;
int lockit;
{
#ifdef F_SETLK
int func;
struct flock lock;
lock.l_start = 0;
lock.l_len = 0;
lock.l_pid = getpid();
lock.l_type = (lockit == SUDO_UNLOCK) ? F_UNLCK : F_WRLCK;
lock.l_whence = SEEK_SET;
func = (lockit == SUDO_TLOCK) ? F_SETLK : F_SETLKW;
return(fcntl(fd, func, &lock) == 0);
#else
return(TRUE);
#endif
}
#endif
char *
sudo_parseln(fp)
FILE *fp;
{
size_t len;
char *cp = NULL;
static char buf[LINE_MAX];
if (fgets(buf, sizeof(buf), fp) != NULL) {
if ((cp = strchr(buf, '#')) != NULL)
*cp = '\0';
len = strlen(buf);
while (len > 0 && isspace(buf[len - 1]))
buf[--len] = '\0';
for (cp = buf; isblank(*cp); cp++)
continue;
}
return(cp);
}