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([NSString -initWithFormat:arguments:]): Increase bsprintf buffer

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size, and assert that we haven't overrun the buffer.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@1606 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Andrew McCallum 1996-05-31 15:10:53 +00:00
parent 7dc236f936
commit e73a7fe9bc
1 changed files with 9 additions and 2 deletions
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11
Source/NSString.m
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@ -300,8 +300,15 @@ handle_printf_atsign (FILE *stream,
arguments: (va_list)argList arguments: (va_list)argList
{ {
#if HAVE_VSPRINTF #if HAVE_VSPRINTF
char buf[128]; /* xxx horrible, disgusting, fix this! */ #define BUFFER_EXTRA 1024
vsprintf(buf, [format _cStringContents], argList); const char *format_cp = [format cStringNoCopy]);
int format_len = strlen (format_cp);
char buf[format_len + BUFFER_EXTRA]; /* xxx horrible disgusting, fix this! */
int printed_len;
printed_len = vsprintf (buf, format_cp, argList);
/* Signal error if we overran our buffer. */
NSParameterAssert (printed_len < format_len + BUFFER_EXTRA - 1);
return [self initWithCString:buf]; return [self initWithCString:buf];
#else #else
[self notImplemented:_cmd]; [self notImplemented:_cmd];