/* Formatted output to strings.
Copyright (C) 1999-2000, 2002-2003 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify it
- under the terms of the GNU Library General Public License as published
- by the Free Software Foundation; either version 2, or (at your option)
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- USA. */
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
/* Specification. */
-#include "printf-parse.h"
+#if WIDE_CHAR_VERSION
+# include "wprintf-parse.h"
+#else
+# include "printf-parse.h"
+#endif
/* Get size_t, NULL. */
#include <stddef.h>
/* malloc(), realloc(), free(). */
#include <stdlib.h>
+/* Checked size_t computations. */
+#include "xsize.h"
+
+#if WIDE_CHAR_VERSION
+# define PRINTF_PARSE wprintf_parse
+# define CHAR_T wchar_t
+# define DIRECTIVE wchar_t_directive
+# define DIRECTIVES wchar_t_directives
+#else
+# define PRINTF_PARSE printf_parse
+# define CHAR_T char
+# define DIRECTIVE char_directive
+# define DIRECTIVES char_directives
+#endif
+
#ifdef STATIC
STATIC
#endif
int
-printf_parse (const char *format, char_directives *d, arguments *a)
+PRINTF_PARSE (const CHAR_T *format, DIRECTIVES *d, arguments *a)
{
- const char *cp = format; /* pointer into format */
- int arg_posn = 0; /* number of regular arguments consumed */
- unsigned int d_allocated; /* allocated elements of d->dir */
- unsigned int a_allocated; /* allocated elements of a->arg */
- unsigned int max_width_length = 0;
- unsigned int max_precision_length = 0;
+ const CHAR_T *cp = format; /* pointer into format */
+ size_t arg_posn = 0; /* number of regular arguments consumed */
+ size_t d_allocated; /* allocated elements of d->dir */
+ size_t a_allocated; /* allocated elements of a->arg */
+ size_t max_width_length = 0;
+ size_t max_precision_length = 0;
d->count = 0;
d_allocated = 1;
- d->dir = malloc (d_allocated * sizeof (char_directive));
+ d->dir = malloc (d_allocated * sizeof (DIRECTIVE));
if (d->dir == NULL)
/* Out of memory. */
return -1;
#define REGISTER_ARG(_index_,_type_) \
{ \
- unsigned int n = (_index_); \
+ size_t n = (_index_); \
if (n >= a_allocated) \
{ \
+ size_t memory_size; \
argument *memory; \
- a_allocated = 2 * a_allocated; \
+ \
+ a_allocated = xtimes (a_allocated, 2); \
if (a_allocated <= n) \
- a_allocated = n + 1; \
+ a_allocated = xsum (n, 1); \
+ memory_size = xtimes (a_allocated, sizeof (argument)); \
+ if (size_overflow_p (memory_size)) \
+ /* Overflow, would lead to out of memory. */ \
+ goto error; \
memory = (a->arg \
- ? realloc (a->arg, a_allocated * sizeof (argument)) \
- : malloc (a_allocated * sizeof (argument))); \
+ ? realloc (a->arg, memory_size) \
+ : malloc (memory_size)); \
if (memory == NULL) \
/* Out of memory. */ \
goto error; \
while (*cp != '\0')
{
- char c = *cp++;
+ CHAR_T c = *cp++;
if (c == '%')
{
- int arg_index = -1;
- char_directive *dp = &d->dir[d->count];/* pointer to next directive */
+ size_t arg_index = ARG_NONE;
+ DIRECTIVE *dp = &d->dir[d->count];/* pointer to next directive */
/* Initialize the next directive. */
dp->dir_start = cp - 1;
dp->flags = 0;
dp->width_start = NULL;
dp->width_end = NULL;
- dp->width_arg_index = -1;
+ dp->width_arg_index = ARG_NONE;
dp->precision_start = NULL;
dp->precision_end = NULL;
- dp->precision_arg_index = -1;
- dp->arg_index = -1;
+ dp->precision_arg_index = ARG_NONE;
+ dp->arg_index = ARG_NONE;
/* Test for positional argument. */
if (*cp >= '0' && *cp <= '9')
{
- const char *np;
+ const CHAR_T *np;
for (np = cp; *np >= '0' && *np <= '9'; np++)
;
if (*np == '$')
{
- unsigned int n = 0;
+ size_t n = 0;
for (np = cp; *np >= '0' && *np <= '9'; np++)
- n = 10 * n + (*np - '0');
+ n = xsum (xtimes (n, 10), *np - '0');
if (n == 0)
/* Positional argument 0. */
goto error;
+ if (size_overflow_p (n))
+ /* n too large, would lead to out of memory later. */
+ goto error;
arg_index = n - 1;
cp = np + 1;
}
/* Test for positional argument. */
if (*cp >= '0' && *cp <= '9')
{
- const char *np;
+ const CHAR_T *np;
for (np = cp; *np >= '0' && *np <= '9'; np++)
;
if (*np == '$')
{
- unsigned int n = 0;
+ size_t n = 0;
for (np = cp; *np >= '0' && *np <= '9'; np++)
- n = 10 * n + (*np - '0');
+ n = xsum (xtimes (n, 10), *np - '0');
if (n == 0)
/* Positional argument 0. */
goto error;
+ if (size_overflow_p (n))
+ /* n too large, would lead to out of memory later. */
+ goto error;
dp->width_arg_index = n - 1;
cp = np + 1;
}
}
- if (dp->width_arg_index < 0)
- dp->width_arg_index = arg_posn++;
+ if (dp->width_arg_index == ARG_NONE)
+ {
+ dp->width_arg_index = arg_posn++;
+ if (dp->width_arg_index == ARG_NONE)
+ /* arg_posn wrapped around. */
+ goto error;
+ }
REGISTER_ARG (dp->width_arg_index, TYPE_INT);
}
else if (*cp >= '0' && *cp <= '9')
{
- unsigned int width_length;
+ size_t width_length;
dp->width_start = cp;
for (; *cp >= '0' && *cp <= '9'; cp++)
/* Test for positional argument. */
if (*cp >= '0' && *cp <= '9')
{
- const char *np;
+ const CHAR_T *np;
for (np = cp; *np >= '0' && *np <= '9'; np++)
;
if (*np == '$')
{
- unsigned int n = 0;
+ size_t n = 0;
for (np = cp; *np >= '0' && *np <= '9'; np++)
- n = 10 * n + (*np - '0');
+ n = xsum (xtimes (n, 10), *np - '0');
if (n == 0)
/* Positional argument 0. */
goto error;
+ if (size_overflow_p (n))
+ /* n too large, would lead to out of memory
+ later. */
+ goto error;
dp->precision_arg_index = n - 1;
cp = np + 1;
}
}
- if (dp->precision_arg_index < 0)
- dp->precision_arg_index = arg_posn++;
+ if (dp->precision_arg_index == ARG_NONE)
+ {
+ dp->precision_arg_index = arg_posn++;
+ if (dp->precision_arg_index == ARG_NONE)
+ /* arg_posn wrapped around. */
+ goto error;
+ }
REGISTER_ARG (dp->precision_arg_index, TYPE_INT);
}
else
{
- unsigned int precision_length;
+ size_t precision_length;
dp->precision_start = cp - 1;
for (; *cp >= '0' && *cp <= '9'; cp++)
if (type != TYPE_NONE)
{
dp->arg_index = arg_index;
- if (dp->arg_index < 0)
- dp->arg_index = arg_posn++;
+ if (dp->arg_index == ARG_NONE)
+ {
+ dp->arg_index = arg_posn++;
+ if (dp->arg_index == ARG_NONE)
+ /* arg_posn wrapped around. */
+ goto error;
+ }
REGISTER_ARG (dp->arg_index, type);
}
dp->conversion = c;
d->count++;
if (d->count >= d_allocated)
{
- char_directive *memory;
+ size_t memory_size;
+ DIRECTIVE *memory;
- d_allocated = 2 * d_allocated;
- memory = realloc (d->dir, d_allocated * sizeof (char_directive));
+ d_allocated = xtimes (d_allocated, 2);
+ memory_size = xtimes (d_allocated, sizeof (DIRECTIVE));
+ if (size_overflow_p (memory_size))
+ /* Overflow, would lead to out of memory. */
+ goto error;
+ memory = realloc (d->dir, memory_size);
if (memory == NULL)
/* Out of memory. */
goto error;
free (d->dir);
return -1;
}
+
+#undef DIRECTIVES
+#undef DIRECTIVE
+#undef CHAR_T
+#undef PRINTF_PARSE
projects / gnulib.git / blobdiff