-/* $Cambridge: exim/src/src/spool_mbox.c,v 1.3 2004/12/17 14:52:44 ph10 Exp $ */
-
/*************************************************
* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) Tom Kistner <tom@duncanthrax.net> 2003-???? */
+/* Copyright (c) Tom Kistner <tom@duncanthrax.net> 2003 - 2015 */
/* License: GPL */
/* Code for setting up a MBOX style spool file inside a /scan/<msgid>
int spool_mbox_ok = 0;
uschar spooled_message_id[17];
-/* returns a pointer to the FILE, and puts the size in bytes into mbox_file_size */
+/* returns a pointer to the FILE, and puts the size in bytes into mbox_file_size
+ * normally, source_file_override is NULL */
-FILE *spool_mbox(unsigned long *mbox_file_size) {
- uschar mbox_path[1024];
+FILE *
+spool_mbox(unsigned long *mbox_file_size, const uschar *source_file_override)
+{
uschar message_subdir[2];
- uschar data_buffer[65535];
- FILE *mbox_file;
+ uschar buffer[16384];
+ uschar *temp_string;
+ uschar *mbox_path;
+ FILE *mbox_file = NULL;
FILE *data_file = NULL;
+ FILE *yield = NULL;
header_line *my_headerlist;
struct stat statbuf;
- int i,j;
-
+ int i, j;
+ void *reset_point = store_get(0);
+
+ mbox_path = string_sprintf("%s/scan/%s/%s.eml", spool_directory, message_id,
+ message_id);
+
+ /* Skip creation if already spooled out as mbox file */
if (!spool_mbox_ok) {
- /* create scan directory, if not present */
- if (!directory_make(spool_directory, US "scan", 0750, FALSE)) {
- debug_printf("unable to create directory: %s/scan\n", spool_directory);
- return NULL;
- };
-
- /* create temp directory inside scan dir */
- snprintf(CS mbox_path, 1024, "%s/scan/%s", spool_directory, message_id);
- if (!directory_make(NULL, mbox_path, 0750, FALSE)) {
- debug_printf("unable to create directory: %s/scan/%s\n", spool_directory, message_id);
- return NULL;
+ /* create temp directory inside scan dir, directory_make works recursively */
+ temp_string = string_sprintf("scan/%s", message_id);
+ if (!directory_make(spool_directory, temp_string, 0750, FALSE)) {
+ log_write(0, LOG_MAIN|LOG_PANIC, "%s", string_open_failed(errno,
+ "scan directory %s/scan/%s", spool_directory, temp_string));
+ goto OUT;
};
-
+
/* open [message_id].eml file for writing */
- snprintf(CS mbox_path, 1024, "%s/scan/%s/%s.eml", spool_directory, message_id, message_id);
- mbox_file = Ufopen(mbox_path,"w");
-
+ mbox_file = modefopen(mbox_path, "wb", SPOOL_MODE);
if (mbox_file == NULL) {
- debug_printf("unable to open file for writing: %s\n", mbox_path);
- return NULL;
+ log_write(0, LOG_MAIN|LOG_PANIC, "%s", string_open_failed(errno,
+ "scan file %s", mbox_path));
+ goto OUT;
};
-
+
+ /* Generate mailbox headers. The $received_for variable is (up to at least
+ Exim 4.64) never set here, because it is only set when expanding the
+ contents of the Received: header line. However, the code below will use it
+ if it should become available in future. */
+
+ temp_string = expand_string(
+ US"From ${if def:return_path{$return_path}{MAILER-DAEMON}} ${tod_bsdinbox}\n"
+ "${if def:sender_address{X-Envelope-From: <${sender_address}>\n}}"
+ "${if def:recipients{X-Envelope-To: ${recipients}\n}}");
+
+ if (temp_string != NULL) {
+ i = fwrite(temp_string, Ustrlen(temp_string), 1, mbox_file);
+ if (i != 1) {
+ log_write(0, LOG_MAIN|LOG_PANIC, "Error/short write while writing \
+ mailbox headers to %s", mbox_path);
+ goto OUT;
+ };
+ };
+
/* write all header lines to mbox file */
my_headerlist = header_list;
- while (my_headerlist != NULL) {
-
+ for (my_headerlist = header_list; my_headerlist != NULL;
+ my_headerlist = my_headerlist->next)
+ {
/* skip deleted headers */
- if (my_headerlist->type == '*') {
- my_headerlist = my_headerlist->next;
- continue;
- };
-
- i = fwrite(my_headerlist->text, 1, my_headerlist->slen, mbox_file);
- if (i != my_headerlist->slen) {
- debug_printf("error/short write on writing in: %s", mbox_path);
- fclose(mbox_file);
- return NULL;
+ if (my_headerlist->type == '*') continue;
+
+ i = fwrite(my_headerlist->text, my_headerlist->slen, 1, mbox_file);
+ if (i != 1) {
+ log_write(0, LOG_MAIN|LOG_PANIC, "Error/short write while writing \
+ message headers to %s", mbox_path);
+ goto OUT;
};
-
- my_headerlist = my_headerlist->next;
};
-
+
+ /* End headers */
+ if (fwrite("\n", 1, 1, mbox_file) != 1) {
+ log_write(0, LOG_MAIN|LOG_PANIC, "Error/short write while writing \
+ message headers to %s", mbox_path);
+ goto OUT;
+ }
+
/* copy body file */
- message_subdir[1] = '\0';
- for (i = 0; i < 2; i++) {
- message_subdir[0] = (split_spool_directory == (i == 0))? message_id[5] : 0;
- sprintf(CS mbox_path, "%s/input/%s/%s-D", spool_directory, message_subdir, message_id);
- data_file = Ufopen(mbox_path,"r");
- if (data_file != NULL)
- break;
+ if (source_file_override == NULL) {
+ message_subdir[1] = '\0';
+ for (i = 0; i < 2; i++) {
+ message_subdir[0] = (split_spool_directory == (i == 0))? message_id[5] : 0;
+ temp_string = string_sprintf("%s/input/%s/%s-D", spool_directory,
+ message_subdir, message_id);
+ data_file = Ufopen(temp_string, "rb");
+ if (data_file != NULL) break;
+ };
+ } else {
+ data_file = Ufopen(source_file_override, "rb");
+ };
+
+ if (data_file == NULL) {
+ log_write(0, LOG_MAIN|LOG_PANIC, "Could not open datafile for message %s",
+ message_id);
+ goto OUT;
};
- fread(data_buffer, 1, 18, data_file);
-
+ /* The code used to use this line, but it doesn't work in Cygwin.
+ *
+ * (void)fread(data_buffer, 1, 18, data_file);
+ *
+ * What's happening is that spool_mbox used to use an fread to jump over the
+ * file header. That fails under Cygwin because the header is locked, but
+ * doing an fseek succeeds. We have to output the leading newline
+ * explicitly, because the one in the file is parted of the locked area.
+ */
+
+ if (!source_file_override)
+ (void)fseek(data_file, SPOOL_DATA_START_OFFSET, SEEK_SET);
+
do {
- j = fread(data_buffer, 1, sizeof(data_buffer), data_file);
+ j = fread(buffer, 1, sizeof(buffer), data_file);
+
if (j > 0) {
- i = fwrite(data_buffer, 1, j, mbox_file);
- if (i != j) {
- debug_printf("error/short write on writing in: %s", mbox_path);
- fclose(mbox_file);
- fclose(data_file);
- return NULL;
+ i = fwrite(buffer, j, 1, mbox_file);
+ if (i != 1) {
+ log_write(0, LOG_MAIN|LOG_PANIC, "Error/short write while writing \
+ message body to %s", mbox_path);
+ goto OUT;
};
};
} while (j > 0);
-
- fclose(data_file);
- fclose(mbox_file);
+
+ (void)fclose(mbox_file);
+ mbox_file = NULL;
+
Ustrcpy(spooled_message_id, message_id);
spool_mbox_ok = 1;
};
- snprintf(CS mbox_path, 1024, "%s/scan/%s/%s.eml", spool_directory, message_id, message_id);
+ /* get the size of the mbox message and open [message_id].eml file for reading*/
+ if (Ustat(mbox_path, &statbuf) != 0 ||
+ (yield = Ufopen(mbox_path,"rb")) == NULL) {
+ log_write(0, LOG_MAIN|LOG_PANIC, "%s", string_open_failed(errno,
+ "scan file %s", mbox_path));
+ goto OUT;
+ };
- /* get the size of the mbox message */
- stat(CS mbox_path, &statbuf);
*mbox_file_size = statbuf.st_size;
- /* open [message_id].eml file for reading */
- mbox_file = Ufopen(mbox_path,"r");
-
- return mbox_file;
+ OUT:
+ if (data_file) (void)fclose(data_file);
+ if (mbox_file) (void)fclose(mbox_file);
+ store_reset(reset_point);
+ return yield;
}
/* remove mbox spool file, demimed files and temp directory */
demime_reason = NULL;
file_extensions = NULL;
#endif
-
+
spam_ok = 0;
malware_ok = 0;
-
- if (spool_mbox_ok) {
-
- spool_mbox_ok = 0;
-
- if (!no_mbox_unspool) {
- uschar mbox_path[1024];
- uschar file_path[1024];
- int n;
- struct dirent *entry;
- DIR *tempdir;
-
- snprintf(CS mbox_path, 1024, "%s/scan/%s", spool_directory, spooled_message_id);
-
- tempdir = opendir(CS mbox_path);
- /* loop thru dir & delete entries */
- n = 0;
- do {
- entry = readdir(tempdir);
- if (entry == NULL) break;
- snprintf(CS file_path, 1024,"%s/scan/%s/%s", spool_directory, spooled_message_id, entry->d_name);
- if ( (Ustrcmp(entry->d_name,"..") != 0) && (Ustrcmp(entry->d_name,".") != 0) ) {
- debug_printf("unspool_mbox(): unlinking '%s'\n", file_path);
- n = unlink(CS file_path);
- };
- } while (n > -1);
-
- closedir(tempdir);
-
- /* remove directory */
- n = rmdir(CS mbox_path);
+
+ if (spool_mbox_ok && !no_mbox_unspool) {
+ uschar *mbox_path;
+ uschar *file_path;
+ int n;
+ struct dirent *entry;
+ DIR *tempdir;
+
+ mbox_path = string_sprintf("%s/scan/%s", spool_directory, spooled_message_id);
+
+ tempdir = opendir(CS mbox_path);
+ if (!tempdir) {
+ debug_printf("Unable to opendir(%s): %s\n", mbox_path, strerror(errno));
+ /* Just in case we still can: */
+ rmdir(CS mbox_path);
+ return;
+ }
+ /* loop thru dir & delete entries */
+ while((entry = readdir(tempdir)) != NULL) {
+ uschar *name = US entry->d_name;
+ if (Ustrcmp(name, US".") == 0 || Ustrcmp(name, US"..") == 0) continue;
+
+ file_path = string_sprintf("%s/%s", mbox_path, name);
+ debug_printf("unspool_mbox(): unlinking '%s'\n", file_path);
+ n = unlink(CS file_path);
};
+
+ closedir(tempdir);
+
+ /* remove directory */
+ rmdir(CS mbox_path);
+ store_reset(mbox_path);
};
+ spool_mbox_ok = 0;
}
#endif
git://git.exim.org / users / jgh / exim.git / blobdiff