mandoc/tag.c - diff

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Diff for /mandoc/tag.c between version 1.11 and 1.12

-version 1.11, 2015/11/20 21:59:54
+version 1.12, 2016/07/08 20:42:15
 Line 57  tag_init(void)
 Line 57  tag_init(void)
 Line 57  tag_init(void)
          tag_files.tfd = -1;
          tag_files.tcpgid = -1;
+         /* Clean up when dying from a signal. */
+         memset(&sa, 0, sizeof(sa));
+         sigfillset(&sa.sa_mask);
+         sa.sa_handler = tag_signal;
+         sigaction(SIGHUP, &sa, NULL);
+         sigaction(SIGINT, &sa, NULL);
+         sigaction(SIGTERM, &sa, NULL);
+         /*
+          * POSIX requires that a process calling tcsetpgrp(3)
+          * from the background gets a SIGTTOU signal.
+          * In that case, do not stop.
+          */
+         sa.sa_handler = SIG_IGN;
+         sigaction(SIGTTOU, &sa, NULL);
          /* Save the original standard output for use by the pager. */
          if ((tag_files.ofd = dup(STDOUT_FILENO)) == -1)
-Line 68  tag_init(void)
+Line 86  tag_init(void)
 Line 68  tag_init(void)
 Line 86  tag_init(void)
              sizeof(tag_files.ofn));
          (void)strlcpy(tag_files.tfn, "/tmp/man.XXXXXXXXXX",
              sizeof(tag_files.tfn));
-         memset(&sa, 0, sizeof(sa));
-         sigfillset(&sa.sa_mask);
-         sa.sa_handler = tag_signal;
-         sigaction(SIGHUP, &sa, NULL);
-         sigaction(SIGINT, &sa, NULL);
-         sigaction(SIGTERM, &sa, NULL);
          if ((ofd = mkstemp(tag_files.ofn)) == -1)
                  goto fail;
          if ((tag_files.tfd = mkstemp(tag_files.tfn)) == -1)

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