notmuch/show-message.c
Carl Worth b825bce61d notmuch reply: Avoid segmentation fault when printing multiple parts
The code was previously trying to print a NULL string in this case, which
is obviously what we don't want to do.
2011-05-24 12:19:18 -07:00

138 lines
3.6 KiB
C

/* notmuch - Not much of an email program, (just index and search)
*
* Copyright © 2009 Carl Worth
* Copyright © 2009 Keith Packard
*
* 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 3 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, see http://www.gnu.org/licenses/ .
*
* Authors: Carl Worth <cworth@cworth.org>
* Keith Packard <keithp@keithp.com>
*/
#include "notmuch-client.h"
typedef struct show_message_state {
int part_count;
int in_zone;
} show_message_state_t;
static void
show_message_part (GMimeObject *part,
show_message_state_t *state,
const notmuch_show_format_t *format,
notmuch_show_params_t *params,
int first)
{
int selected;
state->part_count += 1;
if (! (GMIME_IS_PART (part) || GMIME_IS_MULTIPART (part) || GMIME_IS_MESSAGE_PART (part))) {
fprintf (stderr, "Warning: Not displaying unknown mime part: %s.\n",
g_type_name (G_OBJECT_TYPE (part)));
return;
}
selected = (params->part <= 0 || state->part_count == params->part);
if (selected || state->in_zone) {
if (!first && (params->part <= 0 || state->in_zone) && format->part_sep)
fputs (format->part_sep, stdout);
format->part (part, &(state->part_count));
}
if (GMIME_IS_MULTIPART (part)) {
GMimeMultipart *multipart = GMIME_MULTIPART (part);
int i;
if (selected)
state->in_zone = 1;
for (i = 0; i < g_mime_multipart_get_count (multipart); i++) {
show_message_part (g_mime_multipart_get_part (multipart, i),
state, format, params, i == 0);
}
if (selected)
state->in_zone = 0;
} else if (GMIME_IS_MESSAGE_PART (part)) {
GMimeMessage *mime_message = g_mime_message_part_get_message (GMIME_MESSAGE_PART (part));
if (selected)
state->in_zone = 1;
show_message_part (g_mime_message_get_mime_part (mime_message),
state, format, params, TRUE);
if (selected)
state->in_zone = 0;
}
if (selected || state->in_zone) {
if (format->part_end)
format->part_end (part);
}
}
notmuch_status_t
show_message_body (const char *filename,
const notmuch_show_format_t *format,
notmuch_show_params_t *params)
{
GMimeStream *stream = NULL;
GMimeParser *parser = NULL;
GMimeMessage *mime_message = NULL;
notmuch_status_t ret = NOTMUCH_STATUS_SUCCESS;
FILE *file = NULL;
show_message_state_t state;
state.part_count = 0;
state.in_zone = 0;
file = fopen (filename, "r");
if (! file) {
fprintf (stderr, "Error opening %s: %s\n", filename, strerror (errno));
ret = NOTMUCH_STATUS_FILE_ERROR;
goto DONE;
}
stream = g_mime_stream_file_new (file);
g_mime_stream_file_set_owner (GMIME_STREAM_FILE (stream), FALSE);
parser = g_mime_parser_new_with_stream (stream);
mime_message = g_mime_parser_construct_message (parser);
show_message_part (g_mime_message_get_mime_part (mime_message),
&state,
format,
params,
TRUE);
DONE:
if (mime_message)
g_object_unref (mime_message);
if (parser)
g_object_unref (parser);
if (stream)
g_object_unref (stream);
if (file)
fclose (file);
return ret;
}