[bug #28939] -[NSString getCString:] doesn't work

[Fred Kiefer]

Follow-up Comment #4, bug #28939 (project gnustep):

Actually I am getting a segmentation fault from this code as well.
I am not able to get a proper back trace for this from gdb.
What I noticed is that in  getCString_c we hid this condition

if (externalEncoding != internalEncoding)  
(gdb) p externalEncoding    
$1 = NSUTF8StringEncoding                              
(gdb) p internalEncoding                         
$2 = NSISOLatin1StringEncoding

And when I follow the code further down I get:

1463                  tmp = NSZoneMalloc(zone, bytes);
(gdb) bt
#0  GSToUnicode (dst=0x7fffffffca70, size=0x7fffffffca7c, src=0x6fca1e "",
slen=7326238,
    enc=<value optimized out>, zone=<value optimized out>, options=<value
optimized out>) at Unicode.m:1463
#1  0x00007ffff70ccdbd in GSStrWiden (s=0x7fffffffcab0) at GSString.m:2403
#2  0x00007ffff70cea79 in getCString_c (self=<value optimized out>,
buffer=0x7ecec0 "",
    maxLength=2147483646, aRange=..., leftoverRange=<value optimized out>) at
GSString.m:1672
#3  0x0000000000400bb6 in main (argc=<value optimized out>, argv=<value
optimized out>,
    env=<value optimized out>) at getcstring.m:16
(gdb) n

Program received signal SIGSEGV, Segmentation fault.
NSZoneMalloc (zone=0x7ffff70cea79, size=12) at NSZone.m:2013
2013      return (zone->malloc)(zone, size);


>From then on the stack is corrupted. I am on a 64 bit machine, not sure what
the original poster was using.

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