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/* gmp_vsscanf -- formatted input from a string.
Copyright 2001, 2002 Free Software Foundation, Inc.
This file is part of the GNU MP Library.
The GNU MP Library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 3 of the License, or (at
your option) any later version.
The GNU MP Library 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 Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public License
along with the GNU MP Library. If not, see https://www.gnu.org/licenses/. */
#include <stdarg.h>
#include <string.h>
#include "gmp.h"
#include "gmp-impl.h"
int
gmp_vsscanf (const char *s, const char *fmt, va_list ap)
{
#if SSCANF_WRITABLE_INPUT
/* We only actually need this if there's standard C types in fmt, and if
"s" is not already writable, but it's too much trouble to check that,
and in any case this writable sscanf input business is only for a few
old systems. */
size_t size;
char *alloc;
int ret;
size = strlen (s) + 1;
alloc = (char *) (*__gmp_allocate_func) (size);
memcpy (alloc, s, size);
s = alloc;
ret = __gmp_doscan (&__gmp_sscanf_funs, (void *) &s, fmt, ap);
(*__gmp_free_func) (alloc, size);
return ret;
#else
return __gmp_doscan (&__gmp_sscanf_funs, (void *) &s, fmt, ap);
#endif
}
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