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[BZ #4514]

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* stdio-common/vfprintf.c (vfprintf): Don't shadow workstart variable,
	reinitialize workend at the start of each do_positional format spec
	loop, free workstart before do_positional loops.
	(printf_unknown): Fix size of work_buffer.
	* stdio-common/tst-sprintf.c (main): Add 3 new testcases.
This commit is contained in:
Ulrich Drepper
2007-05-21 18:23:50 +00:00
parent 1f4843fbff
commit af269dd954
8 changed files with 126 additions and 9 deletions
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11
stdio-common/vfprintf.c
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@@ -1627,6 +1627,8 @@ do_positional:
/* Just a counter. */
size_t cnt;
free (workstart);
workstart = NULL;
if (grouping == (const char *) -1)
{
@@ -1801,7 +1803,9 @@ do_positional:
int use_outdigits = specs[nspecs_done].info.i18n;
char pad = specs[nspecs_done].info.pad;
CHAR_T spec = specs[nspecs_done].info.spec;
CHAR_T *workstart = NULL;
workstart = NULL;
workend = &work_buffer[sizeof (work_buffer) / sizeof (CHAR_T)];
/* Fill in last information. */
if (specs[nspecs_done].width_arg != -1)
@@ -1897,8 +1901,7 @@ do_positional:
break;
}
if (__builtin_expect (workstart != NULL, 0))
free (workstart);
free (workstart);
workstart = NULL;
/* Write the following constant string. */
@@ -1926,7 +1929,7 @@ printf_unknown (FILE *s, const struct printf_info *info,
{
int done = 0;
CHAR_T work_buffer[MAX (info->width, info->spec) + 32];
CHAR_T work_buffer[MAX (sizeof (info->width), sizeof (info->prec)) * 3];
CHAR_T *const workend
= &work_buffer[sizeof (work_buffer) / sizeof (CHAR_T)];
register CHAR_T *w;