gsasl  1.10.0
About: GNU SASL is an implementation of the Simple Authentication and Security Layer (SASL). Development version.
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vasprintf.c
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1 /* Formatted output to strings.
2  Copyright (C) 1999, 2002, 2006-2021 Free Software Foundation, Inc.
3 
4  This program is free software; you can redistribute it and/or modify
5  it under the terms of the GNU General Public License as published by
6  the Free Software Foundation; either version 3, or (at your option)
7  any later version.
8 
9  This program is distributed in the hope that it will be useful,
10  but WITHOUT ANY WARRANTY; without even the implied warranty of
11  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  GNU General Public License for more details.
13 
14  You should have received a copy of the GNU General Public License along
15  with this program; if not, see <https://www.gnu.org/licenses/>. */
16 
17 #include <config.h>
18 
19 /* Specification. */
20 #ifdef IN_LIBASPRINTF
21 # include "vasprintf.h"
22 #else
23 # include <stdio.h>
24 #endif
25 
26 #include <errno.h>
27 #include <limits.h>
28 #include <stdlib.h>
29 
30 #include "vasnprintf.h"
31 
32 int
33 vasprintf (char **resultp, const char *format, va_list args)
34 {
35  size_t length;
36  char *result = vasnprintf (NULL, &length, format, args);
37  if (result == NULL)
38  return -1;
39 
40  if (length > INT_MAX)
41  {
42  free (result);
43  errno = EOVERFLOW;
44  return -1;
45  }
46 
47  *resultp = result;
48  /* Return the number of resulting bytes, excluding the trailing NUL. */
49  return length;
50 }
#define EOVERFLOW
Definition: errno.in.h:208
#define NULL
Definition: stddef.in.h:72
char * vasnprintf(char *resultbuf, size_t *lengthp, const char *format, va_list args)
Definition: vasnprintf.c:1852
int vasprintf(char **resultp, const char *format, va_list args)
Definition: vasprintf.c:33