Package: libmailutils4
Version: 1:2.99.97-3
Severity: normal
Tags: upstream
Dear Maintainer,
I'm writing a program using the mailutils library and have the following
sequence of commands:
1) Iterate through all messages in a mailbox with using
mu_mailbox_messages_count() and mu_mailbox_get_message(),
do some stuff but do NOT call mu_message_get_body()
2) Iterate through the messages a second time, same as above but
DO retrieve the body this time.
Step 2 will for most (not all) messages result in a zero size message
body when you call mu_message_is_multipart() before retrieving the body.
There are two possible workarounds, first is not to call
mu_message_is_multipart(), second is to retrieve the body during step 1
(just calling mu_body_size() on it is enough).
I will attach a short sample program to illustrate the problem.
Best regards,
Andre
-- System Information:
Debian Release: wheezy/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Kernel: Linux 3.2.0-4-686-pae (SMP w/1 CPU core)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages libmailutils4 depends on:
ii guile-1.8-libs 1.8.8+1-8
ii libc6 2.13-37
ii libgcrypt11 1.5.0-3
ii libgdbm3 1.8.3-11
ii libgmp10 2:5.0.5+dfsg-2
ii libgnutls26 2.12.20-2
ii libgsasl7 1.8.0-2
ii libldap-2.4-2 2.4.31-1
ii libltdl7 2.4.2-1.2
ii libmysqlclient18 5.5.28+dfsg-1
ii libpam0g 1.1.3-7.1
ii libpython2.7 2.7.3-5
ii mailutils-common 1:2.99.97-3
libmailutils4 recommends no packages.
libmailutils4 suggests no packages.
-- no debconf information
/* Compile this with:
* gcc -ggdb -O0 -o mailtest mailtest.c -l mailutils -lmu_pop -lmu_imap -lmu_maildir -lmu_mh -lmu_auth -lmu_mbox
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <mailutils/mailutils.h>
void showMessages( mu_mailbox_t *mbox, int withBody, int withMultipartCheck )
{
size_t msgno, total = 0;
char *from;
char *subject;
int status;
mu_mailbox_messages_count (*mbox, &total);
for (msgno = 1; msgno <= total; msgno++) {
mu_message_t msg;
mu_header_t hdr;
if ((status = mu_mailbox_get_message (*mbox, msgno, &msg)) != 0
|| (status = mu_message_get_header (msg, &hdr)) != 0) {
mu_error ("Error message: %s", mu_strerror (status));
exit (EXIT_FAILURE);
}
printf ("msg no.: %2u, ", msgno);
if( withBody ) {
mu_body_t body;
size_t bodySize;
int isMultipart;
if ((status = mu_mailbox_get_message (*mbox, msgno, &msg)) != 0
|| (status = mu_message_get_header (msg, &hdr)) != 0)
{
mu_error ("Error message: %s", mu_strerror (status));
exit (EXIT_FAILURE);
}
if( withMultipartCheck ) {
status = mu_message_is_multipart( msg, &isMultipart );
if( 0 != status ) {
fprintf( stderr, "failed to check multipart property: %s",
mu_strerror( status ) );
}
}
// get message body
status = mu_message_get_body( msg, &body );
if( 0 != status ) {
fprintf(stderr, "failed to get message body: %s", mu_strerror( status ) );
}
// get size of body
status = mu_body_size( body, &bodySize );
if( 0 != status ) {
fprintf( stderr, "failed to get message body size: %s", mu_strerror( status ) );
}
printf( "body size: %d\n", bodySize );
} else {
printf( "not requesting body\n" );
}
}
}
int main (int argc, const char **argv)
{
mu_mailbox_t mbox;
int status;
int provokeError = 0;
if( argc < 2 ) {
printf( "call this as:\n"
"%s [imap-url] [-provokeError]\n\n", argv[0] );
exit( EXIT_SUCCESS );
}
/* Register the formats. */
mu_register_all_mbox_formats ();
status = mu_mailbox_create_default (&mbox, argv[1]);
if (status != 0) {
mu_error ("mu_mailbox_create with imap url '%s' returned: %s", argv[1], mu_strerror (status));
exit (EXIT_FAILURE);
}
status = mu_mailbox_open (mbox, MU_STREAM_READ);
if (status != 0) {
mu_error ("mu_mailbox_open: %s", mu_strerror (status));
exit (EXIT_FAILURE);
}
if( argc > 2 && 0 == strcmp( "-provokeError", argv[2] ) ) {
printf( "provoking the error by calling mu_message_is_multipart() before requesting the body in second iteration\n" );
provokeError = 1;
}
printf("=======> first iteration, without requesting message body\n" );
showMessages( &mbox, 0, 0 );
printf("=======> second iteration, with request of message body\n" );
printf(" will%s do the mu_message_is_multipart() check\n", provokeError?"":" NOT" );
showMessages( &mbox, 1, provokeError );
status = mu_mailbox_close (mbox);
if (status != 0) {
mu_error ("mu_mailbox_close: %s", mu_strerror (status));
exit (EXIT_FAILURE);
}
mu_mailbox_destroy (&mbox);
return 0;
}
