[gmime-devel] g_mime_parser_construct_message() segfaults (GMime 3.0.1)

[Stéphane Goujet <stephane goujet wanadoo fr>]

Hello,

  I don't know if I do something wrong in my small program, if the library 
was compiled wrong, or if there is a real bug in the library. The use case 
looks very simple, and the few e-mail files I tested are extremely basic 
and short, so I doubt it could be a library bug; but anyway, I ask my question 
hoping you can enlighten me.

  The e-mail files were generated by another program of mine which took a 
mbox, extract the date, split its content as individual messages and wrote 
each of them in a separate file with g_mime_object_write_to_stream(). It 
used g_mime_parser_construct_message() too and went fine.

  Here are the faulty test program and its trace (if needed, I will send 
the e-mail in private if possible):

==================================

stephane@zbox ~/test/gmime $ cat 
segfault_g_mime_parser_construct_message.c
#include <stdio.h>
#include <gmime-3.0/gmime/gmime.h>

int main(int argc, char **argv) {
        int ret=0;
        GError *gerr;
        GMimeMessage *message;
        GMimeStream *stream;
        GMimeParser *parser;

        printf("Uninitialised stream=%p\n", stream);
        stream=g_mime_stream_file_open("2014-05-29_14:50:13-1.msg", "r", &gerr);
        printf("stream=%p\n", stream);
        if(!stream) {
                fprintf(stderr, "Unable to open GMime stream for reading 2014-05-29_14:50:13-1.msg : s\n", 
gerr->message);
                ret=-3;
                goto clean;
        }
        printf("Uninitialised parser=%p\n", parser);
        parser=g_mime_parser_new_with_stream(stream);
        printf("parser=%p\n", parser);
        g_mime_parser_set_format(parser, GMIME_FORMAT_MESSAGE);
        printf("BEFORE, parser=%p\n", parser);
        if(message=g_mime_parser_construct_message(parser, GMIME_RFC_COMPLIANCE_LOOSE)) {
                printf("INSIDE\n");
        }
        printf("AFTER, parser=%p\n", parser);

clean:
        return ret;
}

stephane@zbox ~/test/gmime $ make
gcc -std=c99 -Werror `pkg-config --cflags glib-2.0` `pkg-config --cflags gmime-3.0` -c 
segfault_g_mime_parser_construct_message.c
gcc `pkg-config --libs glib-2.0` `pkg-config --libs gmime-3.0` segfault_g_mime_parser_construct_message.o -o 
segfault_g_mime_parser_construct_message
stephane@zbox ~/test/gmime $ gdb 
./segfault_g_mime_parser_construct_message
GNU gdb (Gentoo 8.0 vanilla) 8.0
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Reading symbols from ./segfault_g_mime_parser_construct_message...(no debugging symbols found)...done.
(gdb) run
Starting program: 
/home/stephane/test/gmime/segfault_g_mime_parser_construct_message
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Uninitialised stream=0x4009f0
stream=0x60ec00
Uninitialised parser=0x4007a0
parser=0x60f600
BEFORE, parser=0x60f600

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff78842d9 in g_mime_parser_options_clone () from 
/usr/lib64/libgmime-3.0.so.0
(gdb) bt
#0  0x00007ffff78842d9 in g_mime_parser_options_clone () from /usr/lib64/libgmime-3.0.so.0
#1  0x00007ffff7876995 in g_mime_header_list_new () from /usr/lib64/libgmime-3.0.so.0
#2  0x00007ffff787c806 in g_mime_object_init () from /usr/lib64/libgmime-3.0.so.0
#3  0x00007ffff72992bf in g_type_create_instance () from /usr/lib64/libgobject-2.0.so.0
#4  0x00007ffff727b19b in g_object_new_internal () from /usr/lib64/libgobject-2.0.so.0
#5  0x00007ffff727cbad in g_object_newv () from /usr/lib64/libgobject-2.0.so.0
#6  0x00007ffff727d344 in g_object_new () from /usr/lib64/libgobject-2.0.so.0
#7  0x00007ffff7878c6d in g_mime_message_new () from /usr/lib64/libgmime-3.0.so.0
#8  0x00007ffff7883e72 in g_mime_parser_construct_message () from /usr/lib64/libgmime-3.0.so.0
#9  0x00000000004009a9 in main ()
(gdb)


==================================

Goodbye,
  Stéphane.