home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Aminet 24
/
Aminet 24 (1998)(GTI - Schatztruhe)[!][Apr 1998].iso
/
Aminet
/
comm
/
mail
/
Mutt089src.lha
/
Mutt-0.89i-AMIGA
/
src
/
buffy.c
< prev
next >
Wrap
C/C++ Source or Header
|
1998-01-28
|
9KB
|
410 lines
/*
* Copyright (C) 1996-8 Michael R. Elkins <me@cs.hmc.edu>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "mutt.h"
#include "buffy.h"
#include "mx.h"
#include "mailbox.h"
#include <string.h>
#include <sys/stat.h>
#include <dirent.h>
#include <utime.h>
#include <ctype.h>
#include <stdio.h>
static time_t BuffyTime = 0; /* last time we checked for new mail */
static short BuffyCount = 0; /* how many boxes with new mail */
static short BuffyNotify = 0; /* # of unnotified new boxes */
#ifdef BUFFY_SIZE
#include "parse.h"
/* Find the last message in the file. * upon success return 0. * If no
* message found - return -1 */
int fseek_last_message (FILE * f)
{
long int pos;
char buffer[BUFSIZ + 7]; /* 7 for "\n\nFrom " */
int bytes_read;
int i; /* Index into `buffer' for scanning. */
memset (buffer, 0, BUFSIZ+7);
fseek (f, 0, SEEK_END);
pos = ftell (f);
/* Set `bytes_read' to the size of the last, probably partial, buffer; 0 <
* `bytes_read' <= `BUFSIZ'. */
bytes_read = pos % BUFSIZ;
if (bytes_read == 0)
bytes_read = BUFSIZ;
/* Make `pos' a multiple of `BUFSIZ' (0 if the file is short), so that all
* reads will be on block boundaries, which might increase efficiency. */
while ((pos -= bytes_read) >= 0)
{
/* we save in the buffer at the end the first 7 chars from the last read */
strncpy (buffer + BUFSIZ, buffer, 7);
fseek (f, pos, SEEK_SET);
bytes_read = fread (buffer, sizeof (char), bytes_read, f);
if (bytes_read == -1)
return -1;
for (i = bytes_read; --i >= 0;)
if (!strncmp (buffer + i, "\n\nFrom ", strlen ("\n\nFrom ")))
{ /* found it - go to the beginning of the From */
fseek (f, pos + i + 2, SEEK_SET);
return 0;
}
bytes_read = BUFSIZ;
}
/* here we are at the beginning of the file */
if (!strncmp ("From ", buffer, 5))
{
fseek (f, 0, 0);
return (0);
}
return (-1);
}
/* Return 1 if the last message is new */
int test_last_status_new (FILE * f)
{
HEADER *hdr;
int result = 0;
if (fseek_last_message (f) == -1)
return (0);
hdr = mutt_new_header ();
mutt_read_rfc822_header (f, hdr);
if (!(hdr->read || hdr->old))
result = 1;
mutt_free_header (&hdr);
return result;
}
int test_new_folder (const char *path)
{
FILE *f;
int rc = 0;
int typ;
typ = mx_get_magic (path);
if (typ != M_MBOX && typ != M_MMDF)
return 0;
f = fopen (path, "rb");
rc = test_last_status_new (f);
fclose (f);
return rc;
}
BUFFY *mutt_find_mailbox (const char *path)
{
BUFFY *tmp = NULL;
struct stat sb;
struct stat tmp_sb;
if (stat (path,&sb) != 0)
return NULL;
for (tmp = Incoming; tmp; tmp = tmp->next)
{
if (stat (tmp->path,&tmp_sb) ==0 &&
sb.st_dev == tmp_sb.st_dev && sb.st_ino == tmp_sb.st_ino)
break;
}
return tmp;
}
void mutt_update_mailbox (BUFFY * b)
{
struct stat sb;
if (!b)
return;
if (stat (b->path, &sb) == 0)
b->size = (long) sb.st_size;
else
b->size = 0;
return;
}
#endif
int mutt_parse_mailboxes (const char *s, void *data, char *err, size_t errlen)
{
BUFFY **tmp;
char buf[_POSIX_PATH_MAX];
char expn[LONG_STRING];
#ifdef BUFFY_SIZE
struct stat sb;
#endif /* BUFFY_SIZE */
do
{
s = mutt_extract_token (buf, sizeof (buf), s, expn, sizeof (expn), 0);
mutt_expand_path (buf, sizeof (buf));
/* simple check to avoid duplicates */
for (tmp = &Incoming; *tmp; tmp = &((*tmp)->next))
{
if (strcmp (buf, (*tmp)->path) == 0)
break;
}
if (!*tmp)
{
*tmp = (BUFFY *) safe_calloc (1, sizeof (BUFFY));
(*tmp)->path = safe_strdup (buf);
(*tmp)->next = NULL;
}
(*tmp)->new = 0;
(*tmp)->notified = 1;
(*tmp)->newly_created = 0;
#ifdef BUFFY_SIZE
/* for buffy_size, it is important that if the folder is new (tested by
* reading it), the size is set to 0 so that later when we check we see
* that it increased . without buffy_size we probably don't care.
*/
if (stat ((*tmp)->path, &sb) == 0 && !test_new_folder ((*tmp)->path))
{
/* some systems out there don't have an off_t type */
(*tmp)->size = (long) sb.st_size;
}
else
(*tmp)->size = 0;
#endif /* BUFFY_SIZE */
}
while (s);
return 0;
}
#ifdef BUFFY_SIZE
/* people use buffy_size on systems where modified time attributes are BADLY
* broken. Ignore them.
*/
#define STAT_CHECK (sb.st_size > tmp->size)
#else
#define STAT_CHECK (sb.st_mtime > sb.st_atime || (tmp->newly_created && sb.st_ctime == sb.st_mtime && sb.st_ctime == sb.st_atime))
#endif /* BUFFY_SIZE */
int mutt_buffy_check (void)
{
BUFFY *tmp;
struct stat sb;
time_t t;
struct dirent *de;
DIR *dirp;
char path[_POSIX_PATH_MAX];
struct stat contex_sb;
/* fastest return if there are no mailboxes */
if (!Incoming)
return 0;
t = time (NULL);
if ((t - BuffyTime) < BuffyTimeout)
return BuffyCount;
BuffyTime = t;
BuffyCount = 0;
BuffyNotify = 0;
/* check device ID and serial number instead of comparing paths */
if (!Context || !Context->path || stat (Context->path, &contex_sb) != 0)
{
contex_sb.st_dev=0;
contex_sb.st_ino=0;
}
for (tmp = Incoming; tmp; tmp = tmp->next)
{
tmp->new = 0;
if (stat (tmp->path, &sb) != 0 ||
(!tmp->magic && (tmp->magic = mx_get_magic (tmp->path)) <= 0))
{
/* if the mailbox still doesn't exist, set the newly created flag to
* be ready for when it does.
*/
tmp->newly_created = 1;
tmp->magic = 0;
#ifdef BUFFY_SIZE
tmp->size = 0;
#endif
continue;
}
if (!Context || !Context->path ||
sb.st_dev != contex_sb.st_dev || sb.st_ino != contex_sb.st_ino)
{
switch (tmp->magic)
{
case M_MBOX:
case M_MMDF:
if (STAT_CHECK)
{
BuffyCount++;
tmp->new = 1;
}
#ifdef BUFFY_SIZE
else
{
/* some other program has deleted mail from the folder */
tmp->size = (long) sb.st_size;
}
#endif
if (tmp->newly_created &&
(sb.st_ctime != sb.st_mtime || sb.st_ctime != sb.st_atime))
tmp->newly_created = 0;
break;
case M_MAILDIR:
snprintf (path, sizeof (path), "%s/new", tmp->path);
if ((dirp = opendir (path)) == NULL)
{
tmp->magic = 0;
break;
}
while ((de = readdir (dirp)) != NULL)
{
if (*de->d_name != '.')
{
/* one new message is enough */
BuffyCount++;
tmp->new = 1;
break;
}
}
closedir (dirp);
break;
case M_MH:
if ((dirp = opendir (tmp->path)) == NULL)
{
tmp->magic = 0;
break;
}
while ((de = readdir (dirp)) != NULL)
{
if (!mh_valid_message (de->d_name))
continue;
snprintf (path, sizeof (path), "%s/%s", tmp->path, de->d_name);
if (stat (path, &sb) != -1 && sb.st_mtime > sb.st_atime)
{
BuffyCount++;
tmp->new = 1;
break;
}
}
closedir (dirp);
break;
}
}
#ifdef BUFFY_SIZE
else if (Context && Context->path)
tmp->size = (long) sb.st_size; /* update the size */
#endif
if (!tmp->new)
tmp->notified = 0;
else if (!tmp->notified)
BuffyNotify++;
}
return (BuffyCount);
}
void mutt_buffy_notify (void)
{
BUFFY *tmp;
char path[_POSIX_PATH_MAX];
if (mutt_buffy_check () && BuffyNotify)
{
for (tmp = Incoming; tmp; tmp = tmp->next)
{
if (tmp->new && !tmp->notified)
{
strfcpy (path, tmp->path, sizeof (path));
mutt_pretty_mailbox (path);
mutt_message ("New mail in %s.", path);
tmp->notifie