-/*
- * $Id$
- *
- * This program attempts to act like a local MDA if you're using sendmail or
- * some other non-Citadel MTA. It basically just contacts the Citadel LMTP
- * listener on a unix domain socket and transmits the message.
- *
- */
+// This program attempts to act like a local MDA if you're using sendmail or
+// some other non-Citadel MTA. It basically just contacts the Citadel LMTP
+// listener on a unix domain socket and transmits the message. Really though,
+// if your MTA supports LMTP then you definitely should be using that instead.
+//
+// Copyright (c) 1987-2022 by the citadel.org team
+//
+// This program is open source software. Use, duplication, or disclosure
+// is subject to the terms of the GNU General Public License, version 3.
+// The program is distributed without any warranty, expressed or implied.
#include "sysdep.h"
#include <stdlib.h>
#include <errno.h>
#include <stdarg.h>
#include <limits.h>
+#include <libcitadel.h>
#include "citadel.h"
-#include "tools.h"
-#ifndef HAVE_SNPRINTF
-#include "snprintf.h"
-#endif
#include "citadel_dirs.h"
int serv_sock;
int debug = 0;
-void strip_trailing_nonprint(char *buf)
-{
- while ( (!IsEmptyStr(buf)) && (!isprint(buf[strlen(buf) - 1])) )
+void strip_trailing_nonprint(char *buf) {
+ while ( (!IsEmptyStr(buf)) && (!isprint(buf[strlen(buf) - 1])) ) {
buf[strlen(buf) - 1] = 0;
+ }
}
-void timeout(int signum)
-{
+void timeout(int signum) {
exit(signum);
}
-int uds_connectsock(char *sockpath)
-{
+int uds_connectsock(char *sockpath) {
int s;
struct sockaddr_un addr;
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
- strncpy(addr.sun_path, sockpath, sizeof addr.sun_path);
+ strcpy(addr.sun_path, sockpath);
s = socket(AF_UNIX, SOCK_STREAM, 0);
if (s < 0) {
- fprintf(stderr, "Can't create socket: %s\n",
+ fprintf(stderr, "citmail: Can't create socket: %s\n",
strerror(errno));
exit(3);
}
if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
- fprintf(stderr, "can't connect: %s\n",
+ fprintf(stderr, "citmail: can't connect: %s\n",
strerror(errno));
close(s);
exit(3);
}
-/*
- * input binary data from socket
- */
-void serv_read(char *buf, int bytes)
-{
+// input binary data from socket
+void serv_read(char *buf, int bytes) {
int len, rlen;
len = 0;
}
-/*
- * send binary to server
- */
-void serv_write(char *buf, int nbytes)
-{
+// send binary to server
+void serv_write(char *buf, int nbytes) {
int bytes_written = 0;
int retval;
while (bytes_written < nbytes) {
}
-
-/*
- * input string from socket - implemented in terms of serv_read()
- */
-void serv_gets(char *buf)
-{
+// input string from socket - implemented in terms of serv_read()
+void serv_gets(char *buf) {
int i;
- /* Read one character at a time.
- */
+ // Read one character at a time.
for (i = 0;; i++) {
serv_read(&buf[i], 1);
if (buf[i] == '\n' || i == (SIZ-1))
break;
}
- /* If we got a long line, discard characters until the newline.
- */
+ // If we got a long line, discard characters until the newline.
if (i == (SIZ-1))
while (buf[i] != '\n')
serv_read(&buf[i], 1);
- /* Strip all trailing nonprintables (crlf)
- */
+ // Strip all trailing nonprintables (crlf)
buf[i] = 0;
strip_trailing_nonprint(buf);
if (debug) fprintf(stderr, "> %s\n", buf);
}
-/*
- * send line to server - implemented in terms of serv_write()
- */
-void serv_puts(char *buf)
-{
+// send line to server - implemented in terms of serv_write()
+void serv_puts(char *buf) {
if (debug) fprintf(stderr, "< %s\n", buf);
serv_write(buf, strlen(buf));
serv_write("\n", 1);
}
-
void cleanup(int exitcode) {
char buf[1024];
if (exitcode != 0) {
- fprintf(stderr, "Error #%d occurred while sending mail.\n", exitcode);
+ fprintf(stderr, "citmail: error #%d occurred while sending mail.\n", exitcode);
fprintf(stderr, "Please check your Citadel configuration.\n");
}
serv_puts("QUIT");
}
-
int main(int argc, char **argv) {
char buf[1024];
char fromline[1024];
struct passwd *pw;
int from_header = 0;
int in_body = 0;
- int relh=0;
- int home=0;
- char relhome[PATH_MAX]="";
char ctdldir[PATH_MAX]=CTDLDIR;
char *sp, *ep;
char hostname[256];
else if (!strcmp(argv[i], "-t")) {
read_recipients_from_headers = 1;
}
+ else if (!strncmp(argv[i], "-h", 2)) {
+ safestrncpy(ctdldir, &argv[i][2], sizeof ctdldir);
+ }
else if (argv[i][0] != '-') {
++num_recipients;
recipients = realloc(recipients, (num_recipients * sizeof (char *)));
recipients[num_recipients - 1] = strdup(argv[i]);
}
}
-
- /* TODO: should we be able to calculate relative dirs? */
- calc_dirs_n_files(relh, home, relhome, ctdldir);
+ if (chdir(ctdldir) != 0) {
+ fprintf(stderr, "sendcommand: %s: %s\n", ctdldir, strerror(errno));
+ exit(errno);
+ }
+
pw = getpwuid(getuid());
fp = tmpfile();
if (fp == NULL) return(errno);
- serv_sock = uds_connectsock(file_lmtp_socket); /* FIXME: if called as 'sendmail' connect to file_lmtp_unfiltered_socket */
+ serv_sock = uds_connectsock(file_lmtp_socket);
serv_gets(buf);
if (buf[0] != '2') {
fprintf(stderr, "%s\n", &buf[4]);
- if (debug) fprintf(stderr, "Could not connect to LMTP socket.\n");
+ if (debug) fprintf(stderr, "citmail: could not connect to LMTP socket.\n");
cleanup(1);
}
sp = strchr (buf, ' ');
if (sp == NULL) {
- if (debug) fprintf(stderr, "Could not calculate hostname.\n");
+ if (debug) fprintf(stderr, "citmail: could not calculate hostname.\n");
cleanup(2);
}
sp ++;
ep = strchr (sp, ' ');
- if (ep == NULL) cleanup(3);
- *ep = '\0';
+ if (ep == NULL) {
+ if (debug) fprintf(stderr, "citmail: error parsing hostname\n");
+ cleanup(3);
+ }
+ else
+ *ep = '\0';
+
strncpy(hostname, sp, sizeof hostname);
snprintf(fromline, sizeof fromline, "From: %s@%s", pw->pw_name, hostname);
fprintf(fp, "%s%s", fromline, buf);
}
}
- if (!strncasecmp(buf, "From:", 5)) {
+ if (in_body == 0 && !strncasecmp(buf, "From:", 5)) {
strcpy(fromline, buf);
- if (in_body == 0) {
- from_header = 1;
- }
+ from_header = 1;
}
if (read_recipients_from_headers) {
serv_gets(buf);
strcat(buf, " ");
} while (buf[3] == '-');
- if (buf[0] != '2') cleanup(4);
+ if (buf[0] != '2') {
+ if (debug) fprintf(stderr, "citmail: LHLO command failed\n");
+ cleanup(4);
+ }
snprintf(buf, sizeof buf, "MAIL %s", fromline);
serv_puts(buf);
serv_gets(buf);
- if (buf[0] != '2') cleanup(5);
+ if (buf[0] != '2') {
+ if (debug) fprintf(stderr, "citmail: MAIL command failed\n");
+ cleanup(5);
+ }
for (i=0; i<num_recipients; ++i) {
snprintf(buf, sizeof buf, "RCPT To: %s", recipients[i]);
serv_puts("DATA");
serv_gets(buf);
- if (buf[0]!='3') cleanup(6);
+ if (buf[0]!='3') {
+ if (debug) fprintf(stderr, "citmail: DATA command failed\n");
+ cleanup(6);
+ }
rewind(fp);
while (fgets(buf, sizeof buf, fp) != NULL) {
cleanup(0);
}
- /* We won't actually reach this statement but the compiler will
- * display a spurious warning about an invalid return type if
- * we don't return an int.
- */
+ // We won't actually reach this statement but the compiler will
+ // display a spurious warning about an invalid return type if
+ // we don't return an int.
return(0);
}