3 * folder_delmsgs.c -- "remove" SELECTED messages from a folder
5 * This code is Copyright (c) 2002, by the authors of nmh. See the
6 * COPYRIGHT file in the root directory of the nmh distribution for
7 * complete copyright information.
13 * 1) If we are using an external rmmproc, then exec it.
14 * 2) Else if unlink_msgs is non-zero, then unlink the
16 * 3) Else rename SELECTED messages by prefixing name
17 * with a standard prefix.
19 * If there is an error, return -1, else return 0.
23 folder_delmsgs (struct msgs *mp, int unlink_msgs, int nohook)
26 int msgnum, vecp, retval = 0;
27 char buf[100], *dp, **vec;
31 * If "rmmproc" is defined, exec it to remove messages.
34 /* Unset the EXISTS flag for each message to be removed */
35 for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
36 if (is_selected (mp, msgnum))
37 unset_exists (mp, msgnum);
40 /* Mark that the sequence information has changed */
41 mp->msgflags |= SEQMOD;
43 if (mp->numsel > MAXARGS - 2)
44 adios (NULL, "more than %d messages for %s exec", MAXARGS - 2,
46 vec = (char **) calloc ((size_t) (mp->numsel + 2), sizeof(*vec));
48 adios (NULL, "unable to allocate exec vector");
50 for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
51 if (is_selected (mp, msgnum) &&
52 !(vec[vecp++] = strdup (m_name (msgnum))))
53 adios (NULL, "strdup failed");
58 vec[0] = r1bindex (rmmproc, '/');
60 switch (pid = vfork()) {
62 advise ("fork", "unable to");
66 execvp (rmmproc, vec);
67 fprintf (stderr, "unable to exec ");
72 return (pidwait (pid, -1));
77 * Either unlink or rename the SELECTED messages
79 for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
80 if (is_selected (mp, msgnum)) {
81 /* unselect message */
82 unset_selected (mp, msgnum);
86 * Run the external hook on the message if one was specified in the context.
87 * All we have is the message number; we have changed to the directory
88 * containing the message. So, we need to extract that directory to form
89 * the complete path. Note that the caller knows the directory, but has
90 * no way of passing that to us.
94 (void)snprintf(msgpath, sizeof (msgpath), "%s/%d", mp->foldpath, msgnum);
95 (void)ext_hook("del-hook", msgpath, (char *)0);
101 /* just unlink the messages */
102 if (unlink (dp) == -1) {
103 admonish (dp, "unable to unlink");
108 /* or rename messages with standard prefix */
109 strncpy (buf, m_backup (dp), sizeof(buf));
110 if (rename (dp, buf) == -1) {
111 admonish (buf, "unable to rename %s to", dp);
117 /* If removal was successful, decrement message count */
118 unset_exists (mp, msgnum);
125 adios (NULL, "oops, mp->numsel should be 0");
127 /* Mark that the sequence information has changed */
128 mp->msgflags |= SEQMOD;