diff options
Diffstat (limited to 'tag.c')
| -rw-r--r-- | tag.c | 24 |
1 files changed, 18 insertions, 6 deletions
@@ -57,6 +57,24 @@ 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) @@ -68,12 +86,6 @@ 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) |