+++ /dev/null
-/*
- * Copyright notice from original mutt:
- * Copyright (C) 1996-2002 Michael R. Elkins <me@mutt.org>
- * Copyright (C) 1999-2002 Thomas Roessler <roessler@does-not-exist.org>
- *
- * This file is part of mutt-ng, see http://www.muttng.org/.
- * It's licensed under the GNU General Public License,
- * please see the file GPL in the top level source directory.
- */
-
-/*
- * This file contains routines specific to MH and ``maildir'' style
- * mailboxes.
- */
-
-#include <lib-lib/lib-lib.h>
-#include <utime.h>
-
-#include <lib-ui/curses.h>
-
-#include "mutt.h"
-#include "mx.h"
-#include "mh.h"
-#include "mbox.h"
-#include "copy.h"
-#include "buffy.h"
-#include "sort.h"
-#include "thread.h"
-#include "hcache.h"
-
-struct maildir {
- HEADER *h;
- char *canon_fname;
- unsigned header_parsed:1;
- struct maildir *next;
-};
-
-struct mh_sequences {
- int max;
- short *flags;
-};
-
-/* mh_sequences support */
-
-#define MH_SEQ_UNSEEN (1 << 0)
-#define MH_SEQ_REPLIED (1 << 1)
-#define MH_SEQ_FLAGGED (1 << 2)
-
-/* prototypes */
-static int maildir_check_empty (const char*);
-static int maildir_check_mailbox (CONTEXT*, int*, int);
-static int mh_check_mailbox (CONTEXT*, int*, int);
-
-static void mhs_alloc (struct mh_sequences *mhs, int i)
-{
- int j;
- int newmax;
-
- if (i > mhs->max || !mhs->flags) {
- newmax = i + 128;
- p_realloc(&mhs->flags, newmax + 1);
- for (j = mhs->max + 1; j <= newmax; j++)
- mhs->flags[j] = 0;
-
- mhs->max = newmax;
- }
-}
-
-static void mhs_free_sequences (struct mh_sequences *mhs)
-{
- p_delete(&mhs->flags);
-}
-
-static short mhs_check (struct mh_sequences *mhs, int i)
-{
- if (!mhs->flags || i > mhs->max)
- return 0;
- else
- return mhs->flags[i];
-}
-
-static short mhs_set (struct mh_sequences *mhs, int i, short f)
-{
- mhs_alloc (mhs, i);
- mhs->flags[i] |= f;
- return mhs->flags[i];
-}
-
-#if 0
-
-/* unused */
-
-static short mhs_unset (struct mh_sequences *mhs, int i, short f)
-{
- mhs_alloc (mhs, i);
- mhs->flags[i] &= ~f;
- return mhs->flags[i];
-}
-
-#endif
-
-static void mh_read_token (char *t, int *first, int *last)
-{
- char *p;
-
- if ((p = strchr (t, '-'))) {
- *p++ = '\0';
- *first = atoi (t);
- *last = atoi (p);
- }
- else
- *first = *last = atoi (t);
-}
-
-static void mh_read_sequences (struct mh_sequences *mhs, const char *path)
-{
- FILE *fp;
- int line = 1;
- char *buff = NULL;
- char *t;
- ssize_t sz = 0;
-
- short f;
- int first, last;
-
- char pathname[_POSIX_PATH_MAX];
-
- snprintf (pathname, sizeof (pathname), "%s/.mh_sequences", path);
-
- if (!(fp = fopen (pathname, "r")))
- return;
-
- while ((buff = mutt_read_line (buff, &sz, fp, &line))) {
- if (!(t = strtok (buff, " \t:")))
- continue;
-
- if (!m_strcmp(t, MhUnseen))
- f = MH_SEQ_UNSEEN;
- else if (!m_strcmp(t, MhFlagged))
- f = MH_SEQ_FLAGGED;
- else if (!m_strcmp(t, MhReplied))
- f = MH_SEQ_REPLIED;
- else /* unknown sequence */
- continue;
-
- while ((t = strtok (NULL, " \t:"))) {
- mh_read_token (t, &first, &last);
- for (; first <= last; first++)
- mhs_set (mhs, first, f);
- }
- }
-
- p_delete(&buff);
- safe_fclose (&fp);
-}
-
-int mh_buffy (const char *path)
-{
- int i, r = 0;
- struct mh_sequences mhs;
-
- p_clear(&mhs, 1);
-
- mh_read_sequences (&mhs, path);
- for (i = 0; !r && i <= mhs.max; i++)
- if (mhs_check (&mhs, i) & MH_SEQ_UNSEEN)
- r = 1;
- mhs_free_sequences (&mhs);
- return r;
-}
-
-static int mh_mkstemp (CONTEXT * dest, FILE ** fp, char **tgt)
-{
- int fd;
- char path[_POSIX_PATH_MAX];
-
- for (;;) {
- snprintf (path, _POSIX_PATH_MAX, "%s/.mutt-%s-%d-%d",
- dest->path, NONULL (Hostname), (int) getpid (), Counter++);
- umask (Umask);
- if ((fd = open (path, O_WRONLY | O_EXCL | O_CREAT, 0666)) == -1) {
- if (errno != EEXIST) {
- mutt_perror (path);
- return -1;
- }
- }
- else {
- *tgt = m_strdup(path);
- break;
- }
- }
-
- if ((*fp = fdopen (fd, "w")) == NULL) {
- p_delete(tgt);
- close (fd);
- unlink (path);
- return (-1);
- }
-
- return 0;
-}
-
-static void mhs_write_one_sequence (FILE * fp, struct mh_sequences *mhs,
- short f, const char *tag)
-{
- int i;
- int first, last;
-
- fprintf (fp, "%s:", tag);
-
- first = -1;
- last = -1;
-
- for (i = 0; i <= mhs->max; i++) {
- if ((mhs_check (mhs, i) & f)) {
- if (first < 0)
- first = i;
- else
- last = i;
- }
- else if (first >= 0) {
- if (last < 0)
- fprintf (fp, " %d", first);
- else
- fprintf (fp, " %d-%d", first, last);
-
- first = -1;
- last = -1;
- }
- }
-
- if (first >= 0) {
- if (last < 0)
- fprintf (fp, " %d", first);
- else
- fprintf (fp, " %d-%d", first, last);
- }
-
- fputc ('\n', fp);
-}
-
-/* XXX - we don't currently remove deleted messages from sequences we don't know. Should we? */
-
-static void mh_update_sequences (CONTEXT * ctx)
-{
- FILE *ofp, *nfp;
-
- char sequences[_POSIX_PATH_MAX];
- char *tmpfname;
- char *buff = NULL;
- char *p;
- ssize_t s;
- int l = 0;
- int i;
-
- int unseen = 0;
- int flagged = 0;
- int replied = 0;
-
- char seq_unseen[STRING];
- char seq_replied[STRING];
- char seq_flagged[STRING];
-
-
- struct mh_sequences mhs;
-
- p_clear(&mhs, 1);
-
- snprintf (seq_unseen, sizeof (seq_unseen), "%s:", NONULL (MhUnseen));
- snprintf (seq_replied, sizeof (seq_replied), "%s:", NONULL (MhReplied));
- snprintf (seq_flagged, sizeof (seq_flagged), "%s:", NONULL (MhFlagged));
-
- if (mh_mkstemp (ctx, &nfp, &tmpfname) != 0) {
- /* error message? */
- return;
- }
-
- snprintf (sequences, sizeof (sequences), "%s/.mh_sequences", ctx->path);
-
-
- /* first, copy unknown sequences */
- if ((ofp = fopen (sequences, "r"))) {
- while ((buff = mutt_read_line (buff, &s, ofp, &l))) {
- if (!m_strncmp(buff, seq_unseen, m_strlen(seq_unseen)))
- continue;
- if (!m_strncmp(buff, seq_flagged, m_strlen(seq_flagged)))
- continue;
- if (!m_strncmp(buff, seq_replied, m_strlen(seq_replied)))
- continue;
-
- fprintf (nfp, "%s\n", buff);
- }
- }
- safe_fclose (&ofp);
-
- /* now, update our unseen, flagged, and replied sequences */
- for (l = 0; l < ctx->msgcount; l++) {
- if (ctx->hdrs[l]->deleted)
- continue;
-
- if ((p = strrchr (ctx->hdrs[l]->path, '/')))
- p++;
- else
- p = ctx->hdrs[l]->path;
-
- i = atoi (p);
-
- if (!ctx->hdrs[l]->read) {
- mhs_set (&mhs, i, MH_SEQ_UNSEEN);
- unseen++;
- }
- if (ctx->hdrs[l]->flagged) {
- mhs_set (&mhs, i, MH_SEQ_FLAGGED);
- flagged++;
- }
- if (ctx->hdrs[l]->replied) {
- mhs_set (&mhs, i, MH_SEQ_REPLIED);
- replied++;
- }
- }
-
- /* write out the new sequences */
- if (unseen)
- mhs_write_one_sequence (nfp, &mhs, MH_SEQ_UNSEEN, NONULL (MhUnseen));
- if (flagged)
- mhs_write_one_sequence (nfp, &mhs, MH_SEQ_FLAGGED, NONULL (MhFlagged));
- if (replied)
- mhs_write_one_sequence (nfp, &mhs, MH_SEQ_REPLIED, NONULL (MhReplied));
-
- mhs_free_sequences (&mhs);
-
-
- /* try to commit the changes - no guarantee here */
- safe_fclose (&nfp);
-
- unlink (sequences);
- if (safe_rename (tmpfname, sequences) != 0) {
- /* report an error? */
- unlink (tmpfname);
- }
-
- p_delete(&tmpfname);
-}
-
-static void mh_sequences_add_one (CONTEXT * ctx, int n, short unseen,
- short flagged, short replied)
-{
- short unseen_done = 0;
- short flagged_done = 0;
- short replied_done = 0;
-
- FILE *ofp = NULL, *nfp = NULL;
-
- char *tmpfname;
- char sequences[_POSIX_PATH_MAX];
-
- char seq_unseen[STRING];
- char seq_replied[STRING];
- char seq_flagged[STRING];
-
- char *buff = NULL;
- int line;
- ssize_t sz;
-
- if (mh_mkstemp (ctx, &nfp, &tmpfname) == -1)
- return;
-
- snprintf (seq_unseen, sizeof (seq_unseen), "%s:", NONULL (MhUnseen));
- snprintf (seq_replied, sizeof (seq_replied), "%s:", NONULL (MhReplied));
- snprintf (seq_flagged, sizeof (seq_flagged), "%s:", NONULL (MhFlagged));
-
- snprintf (sequences, sizeof (sequences), "%s/.mh_sequences", ctx->path);
- if ((ofp = fopen (sequences, "r"))) {
- while ((buff = mutt_read_line (buff, &sz, ofp, &line))) {
- if (unseen && !strncmp (buff, seq_unseen, m_strlen(seq_unseen))) {
- fprintf (nfp, "%s %d\n", buff, n);
- unseen_done = 1;
- }
- else if (flagged
- && !strncmp (buff, seq_flagged, m_strlen(seq_flagged))) {
- fprintf (nfp, "%s %d\n", buff, n);
- flagged_done = 1;
- }
- else if (replied
- && !strncmp (buff, seq_replied, m_strlen(seq_replied))) {
- fprintf (nfp, "%s %d\n", buff, n);
- replied_done = 1;
- }
- else
- fprintf (nfp, "%s\n", buff);
- }
- }
- safe_fclose (&ofp);
- p_delete(&buff);
-
- if (!unseen_done && unseen)
- fprintf (nfp, "%s: %d\n", NONULL (MhUnseen), n);
- if (!flagged_done && flagged)
- fprintf (nfp, "%s: %d\n", NONULL (MhFlagged), n);
- if (!replied_done && replied)
- fprintf (nfp, "%s: %d\n", NONULL (MhReplied), n);
-
- safe_fclose (&nfp);
-
- unlink (sequences);
- if (safe_rename (tmpfname, sequences) != 0)
- unlink (tmpfname);
-
- p_delete(&tmpfname);
-}
-
-static void mh_update_maildir (struct maildir *md, struct mh_sequences *mhs)
-{
- int i;
- short f;
- char *p;
-
- for (; md; md = md->next) {
- if ((p = strrchr (md->h->path, '/')))
- p++;
- else
- p = md->h->path;
-
- i = atoi (p);
- f = mhs_check (mhs, i);
-
- md->h->read = (f & MH_SEQ_UNSEEN) ? 0 : 1;
- md->h->flagged = (f & MH_SEQ_FLAGGED) ? 1 : 0;
- md->h->replied = (f & MH_SEQ_REPLIED) ? 1 : 0;
- }
-}
-
-/* maildir support */
-
-static void maildir_free_entry (struct maildir **md)
-{
- if (!md || !*md)
- return;
-
- p_delete(&(*md)->canon_fname);
- if ((*md)->h)
- header_delete(&(*md)->h);
-
- p_delete(md);
-}
-
-static void maildir_free_maildir (struct maildir **md)
-{
- struct maildir *p, *q;
-
- if (!md || !*md)
- return;
-
- for (p = *md; p; p = q) {
- q = p->next;
- maildir_free_entry (&p);
- }
-}
-
-static void maildir_parse_flags (HEADER * h, const char *path)
-{
- char *p, *q = NULL;
-
- h->flagged = 0;
- h->read = 0;
- h->replied = 0;
-
- if ((p = strrchr (path, ':')) != NULL && m_strncmp(p + 1, "2,", 2) == 0) {
- p += 3;
-
- m_strreplace(&h->maildir_flags, p);
- q = h->maildir_flags;
-
- while (*p) {
- switch (*p) {
- case 'F':
-
- h->flagged = 1;
- break;
-
- case 'S': /* seen */
-
- h->read = 1;
- break;
-
- case 'R': /* replied */
-
- h->replied = 1;
- break;
-
- case 'T': /* trashed */
- h->trash = 1;
- h->deleted = 1;
- break;
-
- default:
- *q++ = *p;
- break;
- }
- p++;
- }
- }
-
- if (q == h->maildir_flags)
- p_delete(&h->maildir_flags);
- else if (q)
- *q = '\0';
-}
-
-static void maildir_update_mtime (CONTEXT * ctx)
-{
- char buf[_POSIX_PATH_MAX];
- struct stat st;
-
- if (ctx->magic == M_MAILDIR) {
- snprintf (buf, sizeof (buf), "%s/%s", ctx->path, "cur");
- if (stat (buf, &st) == 0)
- ctx->mtime_cur = st.st_mtime;
- snprintf (buf, sizeof (buf), "%s/%s", ctx->path, "new");
- }
- else {
- snprintf (buf, sizeof (buf), "%s/.mh_sequences", ctx->path);
- if (stat (buf, &st) == 0)
- ctx->mtime_cur = st.st_mtime;
-
- m_strcpy(buf, sizeof(buf), ctx->path);
- }
-
- if (stat (buf, &st) == 0)
- ctx->mtime = st.st_mtime;
-}
-
-/*
- * Actually parse a maildir message. This may also be used to fill
- * out a fake header structure generated by lazy maildir parsing.
- */
-static HEADER *maildir_parse_message (int magic, const char *fname,
- int is_old, HEADER * _h)
-{
- FILE *f;
- HEADER *h = _h;
- struct stat st;
-
- if ((f = fopen (fname, "r")) != NULL) {
- if (!h)
- h = header_new();
- h->env = mutt_read_rfc822_header (f, h, 0, 0);
-
- fstat (fileno (f), &st);
- fclose (f);
-
- if (!h->received)
- h->received = h->date_sent;
-
- if (h->content->length <= 0)
- h->content->length = st.st_size - h->content->offset;
-
- h->index = -1;
-
- if (magic == M_MAILDIR) {
- /*
- * maildir stores its flags in the filename, so ignore the
- * flags in the header of the message
- */
-
- h->old = is_old;
- maildir_parse_flags (h, fname);
- }
- return h;
- }
- return NULL;
-}
-
-/*
- * Note that this routine will _not_ modify the context given by
- * ctx.
- *
- * It's used in the first parsing pass on maildir and MH folders.
- * In the MH case, this means full parsing of the folder. In the
- * maildir case, it means that we only look at flags, and create a
- * fake HEADER structure, which may later be filled in by
- * maildir_parse_message(), when called from
- * maildir_delayed_parsing().
- *
- */
-
-static int maildir_parse_entry (CONTEXT * ctx, struct maildir ***last,
- const char *subdir, const char *fname,
- int *count, int is_old, ino_t inode __attribute__ ((unused)))
-{
- struct maildir *entry;
- HEADER *h = NULL;
- char buf[_POSIX_PATH_MAX];
-
- if (subdir)
- snprintf (buf, sizeof (buf), "%s/%s/%s", ctx->path, subdir, fname);
- else
- snprintf (buf, sizeof (buf), "%s/%s", ctx->path, fname);
-
- if (ctx->magic == M_MH)
- h = maildir_parse_message (ctx->magic, buf, is_old, NULL);
- else {
- h = header_new();
- h->old = is_old;
- maildir_parse_flags (h, buf);
- }
-
- if (h != NULL) {
- if (count) {
- (*count)++;
- if (!ctx->quiet && ReadInc && ((*count % ReadInc) == 0 || *count == 1))
- mutt_message (_("Reading %s... %d"), ctx->path, *count);
- }
-
- if (subdir) {
- snprintf (buf, sizeof (buf), "%s/%s", subdir, fname);
- h->path = m_strdup(buf);
- }
- else
- h->path = m_strdup(fname);
-
- entry = p_new(struct maildir, 1);
- entry->h = h;
- entry->header_parsed = (ctx->magic == M_MH);
- **last = entry;
- *last = &entry->next;
-
- return 0;
- }
-
- return -1;
-}
-
-
-
-/* Ignore the garbage files. A valid MH message consists of only
- * digits. Deleted message get moved to a filename with a comma before
- * it.
- */
-
-int mh_valid_message (const char *s)
-{
- for (; *s; s++) {
- if (!isdigit ((unsigned char) *s))
- return 0;
- }
- return 1;
-}
-
-static int maildir_parse_dir (CONTEXT * ctx, struct maildir ***last,
- const char *subdir, int *count)
-{
- DIR *dirp;
- struct dirent *de;
- char buf[_POSIX_PATH_MAX];
- int is_old = 0;
-
- if (subdir) {
- snprintf (buf, sizeof (buf), "%s/%s", ctx->path, subdir);
- is_old = (m_strcmp("cur", subdir) == 0);
- }
- else
- m_strcpy(buf, sizeof(buf), ctx->path);
-
- if ((dirp = opendir (buf)) == NULL)
- return -1;
-
- while ((de = readdir (dirp)) != NULL) {
-
- if ((ctx->magic == M_MH && !mh_valid_message (de->d_name))
- || (ctx->magic == M_MAILDIR && *de->d_name == '.'))
- continue;
-
- /* FOO - really ignore the return value? */
-
- maildir_parse_entry (ctx, last, subdir, de->d_name, count, is_old,
-#if HAVE_DIRENT_D_INO
- de->d_ino
-#else
- 0
-#endif
- );
- }
-
- closedir (dirp);
- return 0;
-}
-
-static int maildir_add_to_context (CONTEXT * ctx, struct maildir *md)
-{
- int oldmsgcount = ctx->msgcount;
-
- while (md) {
-
- if (md->h) {
- if (ctx->msgcount == ctx->hdrmax)
- mx_alloc_memory (ctx);
-
- ctx->hdrs[ctx->msgcount] = md->h;
- ctx->hdrs[ctx->msgcount]->index = ctx->msgcount;
- ctx->size +=
- md->h->content->length + md->h->content->offset -
- md->h->content->hdr_offset;
-
- md->h = NULL;
- ctx->msgcount++;
- }
- md = md->next;
- }
-
- if (ctx->msgcount > oldmsgcount) {
- mx_update_context (ctx, ctx->msgcount - oldmsgcount);
- return 1;
- }
- return 0;
-}
-
-static int maildir_move_to_context (CONTEXT * ctx, struct maildir **md)
-{
- int r;
-
- r = maildir_add_to_context (ctx, *md);
- maildir_free_maildir (md);
- return r;
-}
-
-#ifdef USE_HCACHE
-static ssize_t maildir_hcache_keylen (const char *fn)
-{
- return m_strchrnul(fn, ':') - fn;
-}
-#endif
-
-/*
- * This function does the second parsing pass for a maildir-style
- * folder.
- */
-static void maildir_delayed_parsing (CONTEXT * ctx, struct maildir *md)
-{
- struct maildir *p;
- char fn[_POSIX_PATH_MAX];
- int count;
-
-#ifdef USE_HCACHE
- void *hc = NULL;
- void *data;
- struct timeval *when = NULL;
- struct stat lastchanged;
- int ret;
-
- hc = mutt_hcache_open (HeaderCache, ctx->path);
-#endif
-
- for (p = md, count = 0; p; p = p->next, count++) {
- if (!(p && p->h && !p->header_parsed))
- continue;
-
-#ifdef USE_HCACHE
- data = mutt_hcache_fetch (hc, p->h->path + 3, &maildir_hcache_keylen);
- when = (struct timeval *) data;
-#endif
-
- if (!ctx->quiet && ReadInc && ((count % ReadInc) == 0 || count == 1))
- mutt_message (_("Reading %s... %d"), ctx->path, count);
- snprintf (fn, sizeof (fn), "%s/%s", ctx->path, p->h->path);
-
-#ifdef USE_HCACHE
- if (option (OPTHCACHEVERIFY)) {
- ret = stat (fn, &lastchanged);
- }
- else {
- lastchanged.st_mtime = 0;
- ret = 0;
- }
-
- if (data != NULL && !ret && lastchanged.st_mtime <= when->tv_sec) {
- p->h = mutt_hcache_restore ((unsigned char *) data, &p->h);
- maildir_parse_flags (p->h, fn);
- }
- else
-#endif
- if (maildir_parse_message (ctx->magic, fn, p->h->old, p->h)) {
- p->header_parsed = 1;
- maildir_parse_flags (p->h, fn);
-#ifdef USE_HCACHE
- mutt_hcache_store (hc, p->h->path + 3, p->h, 0, &maildir_hcache_keylen);
-#endif
- }
- else
- header_delete(&p->h);
-#ifdef USE_HCACHE
- p_delete(&data);
-#endif
- }
-#ifdef USE_HCACHE
- mutt_hcache_close (hc);
-#endif
-}
-
-/* Read a MH/maildir style mailbox.
- *
- * args:
- * ctx [IN/OUT] context for this mailbox
- * subdir [IN] NULL for MH mailboxes, otherwise the subdir of the
- * maildir mailbox to read from
- */
-static int _mh_read_dir (CONTEXT * ctx, const char *subdir)
-{
- struct maildir *md;
- struct mh_sequences mhs;
- struct maildir **last;
- int count;
-
-
- p_clear(&mhs, 1);
-
- maildir_update_mtime (ctx);
-
- md = NULL;
- last = &md;
- count = 0;
- if (maildir_parse_dir (ctx, &last, subdir, &count) == -1)
- return -1;
-
- if (ctx->magic == M_MH) {
- mh_read_sequences (&mhs, ctx->path);
- mh_update_maildir (md, &mhs);
- mhs_free_sequences (&mhs);
- }
-
- if (ctx->magic == M_MAILDIR)
- maildir_delayed_parsing (ctx, md);
-
- maildir_move_to_context (ctx, &md);
- return 0;
-}
-
-static int mh_read_dir (CONTEXT* ctx) {
- return (_mh_read_dir (ctx, NULL));
-}
-
-/* read a maildir style mailbox */
-static int maildir_read_dir (CONTEXT * ctx)
-{
- /* maildir looks sort of like MH, except that there are two subdirectories
- * of the main folder path from which to read messages
- */
- if (_mh_read_dir (ctx, "new") == -1 || _mh_read_dir (ctx, "cur") == -1)
- return (-1);
-
- return 0;
-}
-
-/*
- * Open a new (temporary) message in an MH folder.
- */
-
-static int mh_open_new_message (MESSAGE * msg, CONTEXT * dest, HEADER * hdr __attribute__ ((unused)))
-{
- return mh_mkstemp (dest, &msg->fp, &msg->path);
-}
-
-static int ch_compar (const void *a, const void *b)
-{
- return (int) (*((const char *) a) - *((const char *) b));
-}
-
-static void maildir_flags (char *dest, ssize_t destlen, HEADER * hdr)
-{
- *dest = '\0';
-
- /*
- * The maildir specification requires that all files in the cur
- * subdirectory have the :unique string appeneded, regardless of whether
- * or not there are any flags. If .old is set, we know that this message
- * will end up in the cur directory, so we include it in the following
- * test even though there is no associated flag.
- */
-
- if (hdr
- && (hdr->flagged || hdr->replied || hdr->read || hdr->deleted
- || hdr->old || hdr->maildir_flags)) {
- char tmp[LONG_STRING];
-
- snprintf (tmp, sizeof (tmp),
- "%s%s%s%s%s",
- hdr->flagged ? "F" : "",
- hdr->replied ? "R" : "",
- hdr->read ? "S" : "", hdr->deleted ? "T" : "",
- NONULL (hdr->maildir_flags));
- if (hdr->maildir_flags)
- qsort (tmp, m_strlen(tmp), 1, ch_compar);
- snprintf (dest, destlen, ":2,%s", tmp);
- }
-}
-
-
-/*
- * Open a new (temporary) message in a maildir folder.
- *
- * Note that this uses _almost_ the maildir file name format, but
- * with a {cur,new} prefix.
- *
- */
-
-static int maildir_open_new_message (MESSAGE * msg, CONTEXT * dest, HEADER * hdr)
-{
- int fd;
- char path[_POSIX_PATH_MAX];
- char suffix[16];
- char subdir[16];
-
- if (hdr) {
- short deleted = hdr->deleted;
-
- hdr->deleted = 0;
-
- maildir_flags (suffix, sizeof (suffix), hdr);
-
- hdr->deleted = deleted;
- }
- else
- *suffix = '\0';
-
- if (hdr && (hdr->read || hdr->old))
- m_strcpy(subdir, sizeof(subdir), "cur");
- else
- m_strcpy(subdir, sizeof(subdir), "new");
-
- for (;;) {
- snprintf (path, _POSIX_PATH_MAX, "%s/tmp/%s.%ld.%u_%d.%s%s",
- dest->path, subdir, (long) time (NULL),
- (unsigned int) getpid (), Counter++, NONULL (Hostname), suffix);
-
- umask (Umask);
- if ((fd = open (path, O_WRONLY | O_EXCL | O_CREAT, 0666)) == -1) {
- if (errno != EEXIST) {
- mutt_perror (path);
- return -1;
- }
- } else {
- msg->path = m_strdup(path);
- break;
- }
- }
-
- if ((msg->fp = fdopen (fd, "w")) == NULL) {
- p_delete(&msg->path);
- close (fd);
- unlink (path);
- return (-1);
- }
-
- return 0;
-}
-
-
-
-/*
- * Commit a message to a maildir folder.
- *
- * msg->path contains the file name of a file in tmp/. We take the
- * flags from this file's name.
- *
- * ctx is the mail folder we commit to.
- *
- * hdr is a header structure to which we write the message's new
- * file name. This is used in the mh and maildir folder synch
- * routines. When this routine is invoked from mx_commit_message,
- * hdr is NULL.
- *
- * msg->path looks like this:
- *
- * tmp/{cur,new}.mutt-HOSTNAME-PID-COUNTER:flags
- *
- * See also maildir_open_new_message().
- *
- */
-
-static int maildir_commit_message (MESSAGE * msg, CONTEXT * ctx, HEADER * hdr)
-{
- char subdir[4];
- char suffix[16];
- char path[_POSIX_PATH_MAX];
- char full[_POSIX_PATH_MAX];
- char *s;
-
- if (safe_fclose (&msg->fp) != 0)
- return -1;
-
- /* extract the subdir */
- s = strrchr (msg->path, '/') + 1;
- m_strcpy(subdir, sizeof(subdir), s);
-
- /* extract the flags */
- if ((s = strchr (s, ':')))
- m_strcpy(suffix, sizeof(suffix), s);
- else
- suffix[0] = '\0';
-
- /* construct a new file name. */
- for (;;) {
- snprintf (path, _POSIX_PATH_MAX, "%s/%ld.%u_%d.%s%s", subdir,
- (long) time (NULL), (unsigned int) getpid (), Counter++,
- NONULL (Hostname), suffix);
- snprintf (full, _POSIX_PATH_MAX, "%s/%s", ctx->path, path);
-
- if (safe_rename (msg->path, full) == 0) {
- if (hdr)
- m_strreplace(&hdr->path, path);
- p_delete(&msg->path);
-
- /*
- * Adjust the mtime on the file to match the time at which this
- * message was received. Currently this is only set when copying
- * messages between mailboxes, so we test to ensure that it is
- * actually set.
- */
- if (msg->received) {
- struct utimbuf ut;
-
- ut.actime = msg->received;
- ut.modtime = msg->received;
- if (utime (full, &ut)) {
- mutt_perror (_
- ("maildir_commit_message(): unable to set time on file"));
- return -1;
- }
- }
-
- return 0;
- }
- else if (errno != EEXIST) {
- mutt_perror (ctx->path);
- return -1;
- }
- }
-}
-
-/*
- * commit a message to an MH folder.
- *
- */
-
-
-static int _mh_commit_message (MESSAGE * msg, CONTEXT * ctx, HEADER * hdr,
- short updseq)
-{
- DIR *dirp;
- struct dirent *de;
- char *cp, *dep;
- unsigned int n, hi = 0;
- char path[_POSIX_PATH_MAX];
- char tmp[16];
-
- if (safe_fclose (&msg->fp) != 0)
- return -1;
-
- if ((dirp = opendir (ctx->path)) == NULL) {
- mutt_perror (ctx->path);
- return (-1);
- }
-
- /* figure out what the next message number is */
- while ((de = readdir (dirp)) != NULL) {
- dep = de->d_name;
- if (*dep == ',')
- dep++;
- cp = dep;
- while (*cp) {
- if (!isdigit ((unsigned char) *cp))
- break;
- cp++;
- }
- if (!*cp) {
- n = atoi (dep);
- if (n > hi)
- hi = n;
- }
- }
- closedir (dirp);
-
- /*
- * Now try to rename the file to the proper name.
- *
- * Note: We may have to try multiple times, until we find a free
- * slot.
- */
-
- for (;;) {
- hi++;
- snprintf (tmp, sizeof (tmp), "%d", hi);
- snprintf (path, sizeof (path), "%s/%s", ctx->path, tmp);
- if (safe_rename (msg->path, path) == 0) {
- if (hdr)
- m_strreplace(&hdr->path, tmp);
- p_delete(&msg->path);
- break;
- }
- else if (errno != EEXIST) {
- mutt_perror (ctx->path);
- return -1;
- }
- }
- if (updseq)
- mh_sequences_add_one (ctx, hi, !msg->flags.read, msg->flags.flagged,
- msg->flags.replied);
- return 0;
-}
-
-static int mh_commit_message (MESSAGE * msg, CONTEXT * ctx, HEADER * hdr) {
- return _mh_commit_message (msg, ctx, hdr, 1);
-}
-
-/* Sync a message in an MH folder.
- *
- * This code is also used for attachment deletion in maildir
- * folders.
- */
-
-static int mh_rewrite_message (CONTEXT * ctx, int msgno)
-{
- HEADER *h = ctx->hdrs[msgno];
- MESSAGE *dest;
-
- int rc;
- short restore = 1;
- char oldpath[_POSIX_PATH_MAX];
- char newpath[_POSIX_PATH_MAX];
- char partpath[_POSIX_PATH_MAX];
-
- long old_body_offset = h->content->offset;
- long old_body_length = h->content->length;
- long old_hdr_lines = h->lines;
-
- if ((dest = mx_open_new_message (ctx, h, 0)) == NULL)
- return -1;
-
- if ((rc = mutt_copy_message (dest->fp, ctx, h,
- M_CM_UPDATE, CH_UPDATE | CH_UPDATE_LEN)) == 0)
- {
- snprintf (oldpath, sizeof(oldpath), "%s/%s", ctx->path, h->path);
- m_strcpy(partpath, sizeof(partpath), h->path);
-
- if (ctx->magic == M_MAILDIR)
- rc = maildir_commit_message (dest, ctx, h);
- else
- rc = _mh_commit_message (dest, ctx, h, 0);
-
- mx_close_message (&dest);
-
- if (rc == 0) {
- unlink (oldpath);
- restore = 0;
- }
-
- /*
- * Try to move the new message to the old place.
- * (MH only.)
- *
- * This is important when we are just updating flags.
- *
- * Note that there is a race condition against programs which
- * use the first free slot instead of the maximum message
- * number. Mutt does _not_ behave like this.
- *
- * Anyway, if this fails, the message is in the folder, so
- * all what happens is that a concurrently runnung mutt will
- * lose flag modifications.
- */
-
- if (ctx->magic == M_MH && rc == 0) {
- snprintf (newpath, _POSIX_PATH_MAX, "%s/%s", ctx->path, h->path);
- if ((rc = safe_rename (newpath, oldpath)) == 0)
- m_strreplace(&h->path, partpath);
- }
- }
- else
- mx_close_message (&dest);
-
- if (rc == -1 && restore) {
- h->content->offset = old_body_offset;
- h->content->length = old_body_length;
- h->lines = old_hdr_lines;
- }
-
- body_list_wipe(&h->content->parts);
- return rc;
-}
-
-static int mh_sync_message (CONTEXT * ctx, int msgno)
-{
- HEADER *h = ctx->hdrs[msgno];
-
- if (h->attach_del ||
- (h->env && (h->env->refs_changed || h->env->irt_changed)))
- if (mh_rewrite_message (ctx, msgno) != 0)
- return -1;
-
- return 0;
-}
-
-static int maildir_sync_message (CONTEXT * ctx, int msgno)
-{
- HEADER *h = ctx->hdrs[msgno];
-
- if (h->attach_del ||
- (h->env && (h->env->refs_changed || h->env->irt_changed))) {
- /* when doing attachment deletion/rethreading, fall back to the MH case. */
- if (mh_rewrite_message (ctx, msgno) != 0)
- return (-1);
- }
- else {
- /* we just have to rename the file. */
-
- char newpath[_POSIX_PATH_MAX];
- char partpath[_POSIX_PATH_MAX];
- char fullpath[_POSIX_PATH_MAX];
- char oldpath[_POSIX_PATH_MAX];
- char suffix[16];
- char *p;
-
- if ((p = strrchr (h->path, '/')) == NULL) {
- return (-1);
- }
- p++;
- m_strcpy(newpath, sizeof(newpath), p);
-
- /* kill the previous flags */
- if ((p = strchr (newpath, ':')) != NULL)
- *p = 0;
-
- maildir_flags (suffix, sizeof (suffix), h);
-
- snprintf (partpath, sizeof (partpath), "%s/%s%s",
- (h->read || h->old) ? "cur" : "new", newpath, suffix);
- snprintf (fullpath, sizeof (fullpath), "%s/%s", ctx->path, partpath);
- snprintf (oldpath, sizeof (oldpath), "%s/%s", ctx->path, h->path);
-
- if (m_strcmp(fullpath, oldpath) == 0) {
- /* message hasn't really changed */
- return 0;
- }
-
- /* record that the message is possibly marked as trashed on disk */
- h->trash = h->deleted;
-
- if (rename (oldpath, fullpath) != 0) {
- mutt_perror ("rename");
- return (-1);
- }
- m_strreplace(&h->path, partpath);
- }
- return (0);
-}
-
-static int mh_sync_mailbox (CONTEXT * ctx, int unused __attribute__ ((unused)), int *index_hint)
-{
- char path[_POSIX_PATH_MAX], tmp[_POSIX_PATH_MAX];
- int i, j;
-
-#ifdef USE_HCACHE
- void *hc = NULL;
-#endif /* USE_HCACHE */
-
- if (ctx->magic == M_MH)
- i = mh_check_mailbox (ctx, index_hint, 0);
- else
- i = maildir_check_mailbox (ctx, index_hint, 0);
-
- if (i != 0)
- return i;
-
-#ifdef USE_HCACHE
- if (ctx->magic == M_MAILDIR)
- hc = mutt_hcache_open (HeaderCache, ctx->path);
-#endif /* USE_HCACHE */
-
- for (i = 0; i < ctx->msgcount; i++) {
- if (ctx->hdrs[i]->deleted
- && (ctx->magic != M_MAILDIR || !option (OPTMAILDIRTRASH))) {
- snprintf (path, sizeof (path), "%s/%s", ctx->path, ctx->hdrs[i]->path);
- if (ctx->magic == M_MAILDIR
- || (option (OPTMHPURGE) && ctx->magic == M_MH)) {
-#ifdef USE_HCACHE
- if (ctx->magic == M_MAILDIR)
- mutt_hcache_delete (hc, ctx->hdrs[i]->path + 3,
- &maildir_hcache_keylen);
-#endif /* USE_HCACHE */
- unlink (path);
- }
- else if (ctx->magic == M_MH) {
- /* MH just moves files out of the way when you delete them */
- if (*ctx->hdrs[i]->path != ',') {
- snprintf (tmp, sizeof (tmp), "%s/,%s", ctx->path,
- ctx->hdrs[i]->path);
- unlink (tmp);
- rename (path, tmp);
- }
-
- }
- }
- else if (ctx->hdrs[i]->changed || ctx->hdrs[i]->attach_del ||
- (ctx->magic == M_MAILDIR
- && (option (OPTMAILDIRTRASH) || ctx->hdrs[i]->trash)
- && (ctx->hdrs[i]->deleted != ctx->hdrs[i]->trash))) {
- if (ctx->magic == M_MAILDIR) {
- if (maildir_sync_message (ctx, i) == -1)
- goto err;
- }
- else {
- if (mh_sync_message (ctx, i) == -1)
- goto err;
- }
- }
- }
-
-#ifdef USE_HCACHE
- if (ctx->magic == M_MAILDIR)
- mutt_hcache_close (hc);
-#endif /* USE_HCACHE */
-
- if (ctx->magic == M_MH)
- mh_update_sequences (ctx);
-
- /* XXX race condition? */
-
- maildir_update_mtime (ctx);
-
- /* adjust indices */
-
- if (ctx->deleted) {
- for (i = 0, j = 0; i < ctx->msgcount; i++) {
- if (!ctx->hdrs[i]->deleted
- || (ctx->magic == M_MAILDIR && option (OPTMAILDIRTRASH)))
- ctx->hdrs[i]->index = j++;
- }
- }
-
- return 0;
-
-err:
-#ifdef USE_HCACHE
- if (ctx->magic == M_MAILDIR)
- mutt_hcache_close (hc);
-#endif /* USE_HCACHE */
- return -1;
-}
-
-static char *maildir_canon_filename (char *dest, const char *src, ssize_t l)
-{
- char *t, *u;
-
- if ((t = strrchr (src, '/')))
- src = t + 1;
-
- m_strcpy(dest, l, src);
- if ((u = strrchr (dest, ':')))
- *u = '\0';
-
- return dest;
-}
-
-static void maildir_update_tables (CONTEXT * ctx, int *index_hint)
-{
- short old_sort;
- int old_count;
- int i, j;
-
- if (Sort != SORT_ORDER) {
- old_sort = Sort;
- Sort = SORT_ORDER;
- mutt_sort_headers (ctx, 1);
- Sort = old_sort;
- }
-
- old_count = ctx->msgcount;
- for (i = 0, j = 0; i < old_count; i++) {
- if (ctx->hdrs[i]->active && index_hint && *index_hint == i)
- *index_hint = j;
-
- if (ctx->hdrs[i]->active)
- ctx->hdrs[i]->index = j++;
- }
-
- mx_update_tables (ctx, 0);
- mutt_clear_threads (ctx);
-}
-
-static void maildir_update_flags (CONTEXT * ctx, HEADER * o, HEADER * n)
-{
- /* save the global state here so we can reset it at the
- * end of list block if required.
- */
- int context_changed = ctx->changed;
-
- /* user didn't modify this message. alter the flags to
- * match the current state on disk. This may not actually
- * do anything, but we can't tell right now. mutt_set_flag()
- * will just ignore the call if the status bits are
- * already properly set.
- */
- mutt_set_flag (ctx, o, M_FLAG, n->flagged);
- mutt_set_flag (ctx, o, M_REPLIED, n->replied);
- mutt_set_flag (ctx, o, M_READ, n->read);
- mutt_set_flag (ctx, o, M_OLD, n->old);
-
- /* mutt_set_flag() will set this, but we don't need to
- * sync the changes we made because we just updated the
- * context to match the current on-disk state of the
- * message.
- */
- o->changed = 0;
-
- /* if the mailbox was not modified before we made these
- * changes, unset the changed flag since nothing needs to
- * be synchronized.
- */
- if (!context_changed)
- ctx->changed = 0;
-}
-
-
-/* This function handles arrival of new mail and reopening of
- * maildir folders. The basic idea here is we check to see if either
- * the new or cur subdirectories have changed, and if so, we scan them
- * for the list of files. We check for newly added messages, and
- * then merge the flags messages we already knew about. We don't treat
- * either subdirectory differently, as mail could be copied directly into
- * the cur directory from another agent.
- */
-static int maildir_check_mailbox (CONTEXT * ctx, int *index_hint, int unused __attribute__ ((unused)))
-{
- struct stat st_new; /* status of the "new" subdirectory */
- struct stat st_cur; /* status of the "cur" subdirectory */
- char buf[_POSIX_PATH_MAX];
- int changed = 0; /* bitmask representing which subdirectories
- have changed. 0x1 = new, 0x2 = cur */
- int occult = 0; /* messages were removed from the mailbox */
- int have_new = 0; /* messages were added to the mailbox */
- struct maildir *md; /* list of messages in the mailbox */
- struct maildir **last, *p;
- int i;
- HASH *fnames; /* hash table for quickly looking up the base filename
- for a maildir message */
-
- if (!option (OPTCHECKNEW))
- return 0;
-
- snprintf (buf, sizeof (buf), "%s/new", ctx->path);
- if (stat (buf, &st_new) == -1)
- return -1;
-
- snprintf (buf, sizeof (buf), "%s/cur", ctx->path);
- if (stat (buf, &st_cur) == -1)
- return -1;
-
- /* determine which subdirectories need to be scanned */
- if (st_new.st_mtime > ctx->mtime)
- changed = 1;
- if (st_cur.st_mtime > ctx->mtime_cur)
- changed |= 2;
-
- if (!changed)
- return 0; /* nothing to do */
-
- /* update the modification times on the mailbox */
- ctx->mtime_cur = st_cur.st_mtime;
- ctx->mtime = st_new.st_mtime;
-
- /* do a fast scan of just the filenames in
- * the subdirectories that have changed.
- */
- md = NULL;
- last = &md;
- if (changed & 1)
- maildir_parse_dir (ctx, &last, "new", NULL);
- if (changed & 2)
- maildir_parse_dir (ctx, &last, "cur", NULL);
-
- /* we create a hash table keyed off the canonical (sans flags) filename
- * of each message we scanned. This is used in the loop over the
- * existing messages below to do some correlation.
- */
- fnames = hash_create (1031);
-
- for (p = md; p; p = p->next) {
- maildir_canon_filename (buf, p->h->path, sizeof (buf));
- p->canon_fname = m_strdup(buf);
- hash_insert (fnames, p->canon_fname, p, 0);
- }
-
- /* check for modifications and adjust flags */
- for (i = 0; i < ctx->msgcount; i++) {
- ctx->hdrs[i]->active = 0;
- maildir_canon_filename (buf, ctx->hdrs[i]->path, sizeof (buf));
- p = hash_find (fnames, buf);
- if (p && p->h) {
- /* message already exists, merge flags */
- ctx->hdrs[i]->active = 1;
-
- /* check to see if the message has moved to a different
- * subdirectory. If so, update the associated filename.
- */
- if (m_strcmp(ctx->hdrs[i]->path, p->h->path))
- m_strreplace(&ctx->hdrs[i]->path, p->h->path);
-
- /* if the user hasn't modified the flags on this message, update
- * the flags we just detected.
- */
- if (!ctx->hdrs[i]->changed)
- maildir_update_flags (ctx, ctx->hdrs[i], p->h);
-
- if (ctx->hdrs[i]->deleted == ctx->hdrs[i]->trash)
- ctx->hdrs[i]->deleted = p->h->deleted;
- ctx->hdrs[i]->trash = p->h->trash;
-
- /* this is a duplicate of an existing header, so remove it */
- header_delete(&p->h);
- }
- /* This message was not in the list of messages we just scanned.
- * Check to see if we have enough information to know if the
- * message has disappeared out from underneath us.
- */
- else if (((changed & 1) && (!strncmp (ctx->hdrs[i]->path, "new/", 4))) ||
- ((changed & 2) && (!strncmp (ctx->hdrs[i]->path, "cur/", 4)))) {
- /* This message disappeared, so we need to simulate a "reopen"
- * event. We know it disappeared because we just scanned the
- * subdirectory it used to reside in.
- */
- occult = 1;
- }
- else {
- /* This message resides in a subdirectory which was not
- * modified, so we assume that it is still present and
- * unchanged.
- */
- ctx->hdrs[i]->active = 1;
- }
- }
-
- /* destroy the file name hash */
- hash_destroy (&fnames, NULL);
-
- /* If we didn't just get new mail, update the tables. */
- if (occult)
- maildir_update_tables (ctx, index_hint);
-
- /* do any delayed parsing we need to do. */
- maildir_delayed_parsing (ctx, md);
-
- /* Incorporate new messages */
- have_new = maildir_move_to_context (ctx, &md);
-
- return occult ? M_REOPENED : (have_new ? M_NEW_MAIL : 0);
-}
-
-/*
- * This function handles arrival of new mail and reopening of
- * mh/maildir folders. Things are getting rather complex because we
- * don't have a well-defined "mailbox order", so the tricks from
- * mbox.c and mx.c won't work here.
- *
- * Don't change this code unless you _really_ understand what
- * happens.
- *
- */
-
-static int mh_check_mailbox (CONTEXT * ctx, int *index_hint, int unused __attribute__ ((unused)))
-{
- char buf[_POSIX_PATH_MAX];
- struct stat st, st_cur;
- short modified = 0, have_new = 0, occult = 0;
- struct maildir *md, *p;
- struct maildir **last = NULL;
- struct mh_sequences mhs;
- HASH *fnames;
- int i;
-
- if (!option (OPTCHECKNEW))
- return 0;
-
- m_strcpy(buf, sizeof(buf), ctx->path);
- if (stat (buf, &st) == -1)
- return -1;
-
- /* create .mh_sequences when there isn't one. */
- snprintf (buf, sizeof (buf), "%s/.mh_sequences", ctx->path);
- if ((i = stat (buf, &st_cur) == -1) && errno == ENOENT) {
- char *tmp;
- FILE *fp = NULL;
-
- if (mh_mkstemp (ctx, &fp, &tmp) == 0) {
- safe_fclose (&fp);
- if (safe_rename (tmp, buf) == -1)
- unlink (tmp);
- p_delete(&tmp);
- }
- }
-
- if (i == -1 && stat (buf, &st_cur) == -1)
- modified = 1;
-
- if (st.st_mtime > ctx->mtime || st_cur.st_mtime > ctx->mtime_cur)
- modified = 1;
-
- if (!modified)
- return 0;
-
- ctx->mtime_cur = st_cur.st_mtime;
- ctx->mtime = st.st_mtime;
-
- p_clear(&mhs, 1);
-
- md = NULL;
- last = &md;
- maildir_parse_dir (ctx, &last, NULL, NULL);
- mh_read_sequences (&mhs, ctx->path);
- mh_update_maildir (md, &mhs);
- mhs_free_sequences (&mhs);
-
- /* check for modifications and adjust flags */
- fnames = hash_create (1031);
-
- for (p = md; p; p = p->next)
- hash_insert (fnames, p->h->path, p, 0);
-
- for (i = 0; i < ctx->msgcount; i++) {
- ctx->hdrs[i]->active = 0;
-
- if ((p = hash_find (fnames, ctx->hdrs[i]->path)) && p->h &&
- (mutt_cmp_header (ctx->hdrs[i], p->h))) {
- ctx->hdrs[i]->active = 1;
- /* found the right message */
- if (!ctx->hdrs[i]->changed)
- maildir_update_flags (ctx, ctx->hdrs[i], p->h);
-
- header_delete(&p->h);
- }
- else /* message has disappeared */
- occult = 1;
- }
-
- /* destroy the file name hash */
-
- hash_destroy (&fnames, NULL);
-
- /* If we didn't just get new mail, update the tables. */
- if (occult)
- maildir_update_tables (ctx, index_hint);
-
- /* Incorporate new messages */
- have_new = maildir_move_to_context (ctx, &md);
-
- return occult ? M_REOPENED : (have_new ? M_NEW_MAIL : 0);
-}
-
-
-
-
-/*
- * These functions try to find a message in a maildir folder when it
- * has moved under our feet. Note that this code is rather expensive, but
- * then again, it's called rarely.
- */
-
-static FILE *_maildir_open_find_message (const char *folder, const char *unique,
- const char *subfolder)
-{
- char dir[_POSIX_PATH_MAX];
- char tunique[_POSIX_PATH_MAX];
- char fname[_POSIX_PATH_MAX];
-
- DIR *dp;
- struct dirent *de;
-
- FILE *fp = NULL;
- int oe = ENOENT;
-
- snprintf (dir, sizeof (dir), "%s/%s", folder, subfolder);
-
- if ((dp = opendir (dir)) == NULL) {
- errno = ENOENT;
- return NULL;
- }
-
- while ((de = readdir (dp))) {
- maildir_canon_filename (tunique, de->d_name, sizeof (tunique));
-
- if (!m_strcmp(tunique, unique)) {
- snprintf (fname, sizeof (fname), "%s/%s/%s", folder, subfolder,
- de->d_name);
- fp = fopen (fname, "r"); /* __FOPEN_CHECKED__ */
- oe = errno;
- break;
- }
- }
-
- closedir (dp);
-
- errno = oe;
- return fp;
-}
-
-FILE *maildir_open_find_message (const char *folder, const char *msg)
-{
- char unique[_POSIX_PATH_MAX];
- FILE *fp;
-
- static unsigned int new_hits = 0, cur_hits = 0; /* simple dynamic optimization */
-
- maildir_canon_filename (unique, msg, sizeof (unique));
-
- if ((fp =
- _maildir_open_find_message (folder, unique,
- new_hits > cur_hits ? "new" : "cur"))
- || errno != ENOENT) {
- if (new_hits < UINT_MAX && cur_hits < UINT_MAX) {
- new_hits += (new_hits > cur_hits ? 1 : 0);
- cur_hits += (new_hits > cur_hits ? 0 : 1);
- }
-
- return fp;
- }
- if ((fp =
- _maildir_open_find_message (folder, unique,
- new_hits > cur_hits ? "cur" : "new"))
- || errno != ENOENT) {
- if (new_hits < UINT_MAX && cur_hits < UINT_MAX) {
- new_hits += (new_hits > cur_hits ? 0 : 1);
- cur_hits += (new_hits > cur_hits ? 1 : 0);
- }
-
- return fp;
- }
-
- return NULL;
-}
-
-
-/*
- * Returns:
- * 1 if there are no messages in the mailbox
- * 0 if there are messages in the mailbox
- * -1 on error
- */
-static int maildir_check_empty (const char *path)
-{
- DIR *dp;
- struct dirent *de;
- int r = 1; /* assume empty until we find a message */
- char frealpath[_POSIX_PATH_MAX];
- int iter = 0;
-
- /* Strategy here is to look for any file not beginning with a period */
-
- do {
- /* we do "cur" on the first iteration since its more likely that we'll
- * find old messages without having to scan both subdirs
- */
- snprintf (frealpath, sizeof (frealpath), "%s/%s", path,
- iter == 0 ? "cur" : "new");
- if ((dp = opendir (frealpath)) == NULL)
- return -1;
- while ((de = readdir (dp))) {
- if (*de->d_name != '.') {
- r = 0;
- break;
- }
- }
- closedir (dp);
- iter++;
- } while (r && iter < 2);
-
- return r;
-}
-
-/*
- * Returns:
- * 1 if there are no messages in the mailbox
- * 0 if there are messages in the mailbox
- * -1 on error
- */
-static int mh_check_empty (const char *path)
-{
- DIR *dp;
- struct dirent *de;
- int r = 1; /* assume empty until we find a message */
-
- if ((dp = opendir (path)) == NULL)
- return -1;
- while ((de = readdir (dp))) {
- if (mh_valid_message (de->d_name)) {
- r = 0;
- break;
- }
- }
- closedir (dp);
-
- return r;
-}
-
-static int mh_is_magic (const char* path, struct stat* st) {
- char tmp[_POSIX_PATH_MAX];
-
- if (S_ISDIR (st->st_mode)) {
- snprintf (tmp, sizeof (tmp), "%s/.mh_sequences", path);
- if (access (tmp, F_OK) == 0)
- return (M_MH);
-
- snprintf (tmp, sizeof (tmp), "%s/.xmhcache", path);
- if (access (tmp, F_OK) == 0)
- return (M_MH);
-
- snprintf (tmp, sizeof (tmp), "%s/.mew_cache", path);
- if (access (tmp, F_OK) == 0)
- return (M_MH);
-
- snprintf (tmp, sizeof (tmp), "%s/.mew-cache", path);
- if (access (tmp, F_OK) == 0)
- return (M_MH);
-
- snprintf (tmp, sizeof (tmp), "%s/.sylpheed_cache", path);
- if (access (tmp, F_OK) == 0)
- return (M_MH);
-
- /*
- * ok, this isn't an mh folder, but mh mode can be used to read
- * Usenet news from the spool. ;-)
- */
-
- snprintf (tmp, sizeof (tmp), "%s/.overview", path);
- if (access (tmp, F_OK) == 0)
- return (M_MH);
- }
- return (-1);
-}
-
-static int maildir_is_magic (const char* path, struct stat* st) {
- struct stat sb;
- char tmp[_POSIX_PATH_MAX];
-
- if (S_ISDIR (st->st_mode)) {
- snprintf (tmp, sizeof (tmp), "%s/cur", path);
- if (stat (tmp, &sb) == 0 && S_ISDIR (sb.st_mode))
- return (M_MAILDIR);
- }
- return (-1);
-}
-
-static int mh_commit (MESSAGE* msg, CONTEXT* ctx) {
- return (mh_commit_message (msg, ctx, NULL));
-}
-
-static int maildir_commit (MESSAGE* msg, CONTEXT* ctx) {
- return (maildir_commit_message (msg, ctx, NULL));
-}
-
-mx_t const maildir_mx = {
- M_MAILDIR,
- 1,
- maildir_is_magic,
- maildir_check_empty,
- access,
- maildir_read_dir,
- maildir_open_new_message,
- NULL,
- maildir_check_mailbox,
- NULL,
- mh_sync_mailbox,
- maildir_commit
-};
-
-mx_t const mh_mx = {
- M_MH,
- 1,
- mh_is_magic,
- mh_check_empty,
- access,
- mh_read_dir,
- mh_open_new_message,
- NULL,
- mh_check_mailbox,
- NULL,
- mh_sync_mailbox,
- mh_commit
-};
projects / apps / madmutt.git / blobdiff