3 * seq_save.c -- 1) synchronize sequences
4 * -- 2) save public sequences
6 * This code is Copyright (c) 2002, by the authors of nmh. See the
7 * COPYRIGHT file in the root directory of the nmh distribution for
8 * complete copyright information.
12 #include <h/signals.h>
16 * 1. If sequence is public and folder is readonly,
17 * then change it to be private
18 * 2a. If sequence is public, then add it to the sequences file
19 * in folder (name specified by mh-sequences profile entry).
20 * 2b. If sequence is private, then add it to the
25 seq_save (struct msgs *mp)
28 char flags, *cp, attr[BUFSIZ], seqfile[PATH_MAX];
32 /* check if sequence information has changed */
33 if (!(mp->msgflags & SEQMOD))
35 mp->msgflags &= ~SEQMOD;
38 flags = mp->msgflags; /* record folder flags */
41 * If no mh-sequences file is defined, or if a mh-sequences file
42 * is defined but empty (*mh_seq == '\0'), then pretend folder
43 * is readonly. This will force all sequences to be private.
45 if (mh_seq == NULL || *mh_seq == '\0')
48 snprintf (seqfile, sizeof(seqfile), "%s/%s", mp->foldpath, mh_seq);
50 for (i = 0; mp->msgattrs[i]; i++) {
51 snprintf (attr, sizeof(attr), "atr-%s-%s", mp->msgattrs[i], mp->foldpath);
53 /* get space separated list of sequence ranges */
54 if (!(cp = seq_list(mp, mp->msgattrs[i]))) {
55 context_del (attr); /* delete sequence from context */
59 if (is_readonly(mp) || is_seq_private(mp, i)) {
64 context_replace (attr, cp); /* update sequence in context */
69 context_del (attr); /* delete sequence from context */
73 * Attempt to open file for public sequences.
74 * If that fails (probably because folder is
75 * readonly), then make sequence private.
77 if ((fp = lkfopen (seqfile, "w")) == NULL
78 && (unlink (seqfile) == -1 ||
79 (fp = lkfopen (seqfile, "w")) == NULL)) {
80 admonish (attr, "unable to write");
84 /* block a few signals */
86 sigaddset(&set, SIGHUP);
87 sigaddset(&set, SIGINT);
88 sigaddset(&set, SIGQUIT);
89 sigaddset(&set, SIGTERM);
90 SIGPROCMASK (SIG_BLOCK, &set, &oset);
92 fprintf (fp, "%s: %s\n", mp->msgattrs[i], cp);
97 lkfclose (fp, seqfile);
98 SIGPROCMASK (SIG_SETMASK, &oset, &set); /* reset signal mask */
101 * If folder is not readonly, and we didn't save any
102 * public sequences, then remove that file.
104 if (!is_readonly(mp))
109 * Reset folder flag, since we may be
110 * pretending that folder is readonly.
112 mp->msgflags = flags;