109 lines
2.7 KiB
C
109 lines
2.7 KiB
C
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/*
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* $Source$
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* $Revision$
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* $Date$
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*
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* Copyright (C) 1996 by CyberSolutions GmbH.
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* All rights reserved.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <text.h>
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#include <petidomo.h>
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static char * s_crash_filename = NULL;
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static void
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cb_crashmail(void)
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{
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const struct PD_Config * MasterConfig;
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FILE * fh;
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if (s_crash_filename != NULL) {
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MasterConfig = getMasterConfig();
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{
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char * envelope;
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envelope = text_easy_sprintf("petidomo-manager@%s", MasterConfig->fqdn);
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if (envelope == NULL) {
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syslog(LOG_CRIT, "Failed to allocate required internal buffer: %m");
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exit(1);
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}
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fh = vOpenMailer(envelope, "petidomo-manager", NULL);
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free(envelope);
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}
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if (fh != NULL) {
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fprintf(fh, "From: petidomo-manager (Petidomo Mailing List Server)\n");
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fprintf(fh, "To: petidomo-manager\n");
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fprintf(fh, "Subject: Petidomo failed -- mail has been rescued\n");
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fprintf(fh, "\n");
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fprintf(fh, "Due to a configuration error, Petidomo was not able to process the\n");
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fprintf(fh, "incoming mail properly. The mail has been rescued into the following\n");
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fprintf(fh, "file: %s/%s\n", MasterConfig->basedir, s_crash_filename);
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fprintf(fh, "\n");
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fprintf(fh, "Please take a look at the logfile to find out what went wrong and fix\n");
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fprintf(fh, "the problem. Then you can pipe the mail into Petidomo again, to\n");
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fprintf(fh, "finish processing the request.");
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CloseMailer(fh);
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}
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}
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}
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void
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RescueMail(const char * mail)
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{
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struct flock lock;
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char * buffer;
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int counter;
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int fd;
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for (buffer = xmalloc(64), counter = 0; ; counter++) {
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sprintf(buffer, "crash/mail%04d", counter);
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debug((DEBUG_MAIN, 8, "Trying rescue file \"%s\".", buffer));
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fd = open(buffer, O_WRONLY | O_CREAT | O_EXCL, 0666);
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if (fd == -1) {
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if (errno == EEXIST)
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continue;
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else {
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syslog(LOG_CRIT, "Tried to write file \"%s\": %m", buffer);
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exit(1);
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}
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}
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else
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break;
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}
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debug((DEBUG_MAIN, 8, "Saving read file to \"%s\" in case something goes wrong.",
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buffer));
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lock.l_start = 0;
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lock.l_len = 0;
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lock.l_type = F_WRLCK;
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lock.l_whence = SEEK_SET;
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fcntl(fd, F_SETLKW, &lock);
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if ((write(fd, mail, strlen(mail)) == -1)) {
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syslog(LOG_ERR, "Error occured while writing to file \"%s\": %m", buffer);
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close(fd);
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exit(1);
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}
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close(fd);
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s_crash_filename = buffer;
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atexit(cb_crashmail);
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}
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void
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RemoveRescueMail()
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{
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if (s_crash_filename) {
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debug((DEBUG_MAIN, 8, "Removing crash rescue file \"%s\".", s_crash_filename));
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remove(s_crash_filename);
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s_crash_filename = NULL;
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}
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}
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