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[Mutt] #2977: 'set folder = =' makes mutt segfault

#2977: 'set folder = =' makes mutt segfault

 {{{
 Hi,

 as spotted by Sam Morris <sam@xxxxxxxxxxxxx>, 'set folder = =' makes
 mutt segfault: (Debian #448728)

 $ ./mutt -v
 Mutt 1.5.17 (2007-11-01)

 $ ./mutt -F /dev/null -e 'set folder = ='
 Speicherzugriffsfehler

 $ gdb ./mutt
 (gdb) r -F /dev/null -e 'set folder = ='
 Starting program: /cb/cb/debian/mutt/hg/mutt/mutt -F /dev/null -e 'set
 folder = ='

 Program received signal SIGSEGV, Segmentation fault.
 0x00002b0d09a789e0 in strlen () from /lib/libc.so.6
 (gdb) bt
 #0  0x00002b0d09a789e0 in strlen () from /lib/libc.so.6
 #1  0x00000000004649ff in _mutt_expand_path (s=0x7fffa150d7d0 "=",
 slen=256, rx=0) at muttlib.c:400
 #2  0x00000000004252a2 in parse_set (tmp=0x7fffa150f2c0, s=0x7fffa150d960,
 data=<value optimized out>,
     err=0x7fffa150f2e0) at init.c:1897
 #3  0x00000000004240fd in mutt_parse_rc_line (line=<value optimized out>,
 token=0x7fffa150f2c0,
     err=0x7fffa150f2e0) at init.c:2334
 #4  0x0000000000426309 in mutt_init (skip_sys_rc=0, commands=0x697fa0) at
 init.c:2824
 #5  0x00000000004312de in main (argc=5, argv=0x7fffa150fe08) at main.c:722
 (gdb) quit


 Christoph
 }}}

-- 
Ticket URL: <http://dev.mutt.org/trac/ticket/2977>