* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2015 */
+/* Copyright (c) University of Cambridge 1995 - 2016 */
/* See the file NOTICE for conditions of use and distribution. */
/* Functions for reading spool files. When compiling for a utility (eximon),
with append.
Argument: the id of the message
-Returns: TRUE if file successfully opened and locked
+Returns: fd if file successfully opened and locked, else -1
-Side effect: deliver_datafile is set to the fd of the open file.
+Side effect: message_subdir is set for the (possibly split) spool directory
*/
-BOOL
+int
spool_open_datafile(uschar *id)
{
int i;
struct stat statbuf;
flock_t lock_data;
uschar spoolname[256];
+int fd;
/* If split_spool_directory is set, first look for the file in the appropriate
sub-directory of the input directory. If it is not found there, try the input
int save_errno;
message_subdir[0] = (split_spool_directory == (i == 0))? id[5] : 0;
sprintf(CS spoolname, "%s/input/%s/%s-D", spool_directory, message_subdir, id);
- deliver_datafile = Uopen(spoolname, O_RDWR | O_APPEND, 0);
- if (deliver_datafile >= 0) break;
+ if ((fd = Uopen(spoolname, O_RDWR | O_APPEND, 0)) >= 0)
+ break;
save_errno = errno;
if (errno == ENOENT)
{
else log_write(0, LOG_MAIN, "Spool error for %s: %s", spoolname,
strerror(errno));
errno = save_errno;
- return FALSE;
+ return -1;
}
/* File is open and message_subdir is set. Set the close-on-exec flag, and lock
Unix systems it doesn't make any difference as long as Exim is consistent in
what it locks. */
-(void)fcntl(deliver_datafile, F_SETFD, fcntl(deliver_datafile, F_GETFD) |
+(void)fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) |
FD_CLOEXEC);
lock_data.l_type = F_WRLCK;
lock_data.l_start = 0;
lock_data.l_len = SPOOL_DATA_START_OFFSET;
-if (fcntl(deliver_datafile, F_SETLK, &lock_data) < 0)
+if (fcntl(fd, F_SETLK, &lock_data) < 0)
{
log_write(L_skip_delivery,
LOG_MAIN,
"Spool file is locked (another process is handling this message)");
- (void)close(deliver_datafile);
- deliver_datafile = -1;
+ (void)close(fd);
errno = 0;
- return FALSE;
+ return -1;
}
/* Get the size of the data; don't include the leading filename line
in the count, but add one for the newline before the data. */
-if (fstat(deliver_datafile, &statbuf) == 0)
+if (fstat(fd, &statbuf) == 0)
{
message_body_size = statbuf.st_size - SPOOL_DATA_START_OFFSET;
message_size = message_body_size + 1;
}
-return TRUE;
+return fd;
}
#endif /* COMPILE_UTILITY */