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snprintf.c (165903) snprintf.c (178287)
1/*-
2 * Copyright (c) 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Chris Torek.
7 *
8 * Redistribution and use in source and binary forms, with or without

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29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#if defined(LIBC_SCCS) && !defined(lint)
34static char sccsid[] = "@(#)snprintf.c 8.1 (Berkeley) 6/4/93";
35#endif /* LIBC_SCCS and not lint */
36#include <sys/cdefs.h>
1/*-
2 * Copyright (c) 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Chris Torek.
7 *
8 * Redistribution and use in source and binary forms, with or without

--- 20 unchanged lines hidden (view full) ---

29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#if defined(LIBC_SCCS) && !defined(lint)
34static char sccsid[] = "@(#)snprintf.c 8.1 (Berkeley) 6/4/93";
35#endif /* LIBC_SCCS and not lint */
36#include <sys/cdefs.h>
37__FBSDID("$FreeBSD: head/lib/libc/stdio/snprintf.c 165903 2007-01-09 00:28:16Z imp $");
37__FBSDID("$FreeBSD: head/lib/libc/stdio/snprintf.c 178287 2008-04-17 22:17:54Z jhb $");
38
39#include <limits.h>
40#include <stdio.h>
41#include <stdarg.h>
42
43#include "local.h"
44
45int
46snprintf(char * __restrict str, size_t n, char const * __restrict fmt, ...)
47{
48 size_t on;
49 int ret;
50 va_list ap;
51 FILE f;
38
39#include <limits.h>
40#include <stdio.h>
41#include <stdarg.h>
42
43#include "local.h"
44
45int
46snprintf(char * __restrict str, size_t n, char const * __restrict fmt, ...)
47{
48 size_t on;
49 int ret;
50 va_list ap;
51 FILE f;
52 struct __sFILEX ext;
53
54 on = n;
55 if (n != 0)
56 n--;
57 if (n > INT_MAX)
58 n = INT_MAX;
59 va_start(ap, fmt);
60 f._file = -1;
61 f._flags = __SWR | __SSTR;
62 f._bf._base = f._p = (unsigned char *)str;
63 f._bf._size = f._w = n;
52
53 on = n;
54 if (n != 0)
55 n--;
56 if (n > INT_MAX)
57 n = INT_MAX;
58 va_start(ap, fmt);
59 f._file = -1;
60 f._flags = __SWR | __SSTR;
61 f._bf._base = f._p = (unsigned char *)str;
62 f._bf._size = f._w = n;
64 f._extra = &ext;
65 INITEXTRA(&f);
63 f._orientation = 0;
64 memset(&f._mbstate, 0, sizeof(mbstate_t));
66 ret = __vfprintf(&f, fmt, ap);
67 if (on > 0)
68 *f._p = '\0';
69 va_end(ap);
70 return (ret);
71}
65 ret = __vfprintf(&f, fmt, ap);
66 if (on > 0)
67 *f._p = '\0';
68 va_end(ap);
69 return (ret);
70}