mblen.c (7438fc3aa8a196e1af28f4b09418a6733af0d69a) mblen.c (f0c6c306f91a839c0ad2e84a3e1b84aa81b26c8f)
1/*-
2 * Copyright (c) 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 * Paul Borman at Krystal Technologies.
7 *
8 * Redistribution and use in source and binary forms, with or without

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32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#include <sys/cdefs.h>
38__FBSDID("$FreeBSD$");
39
1/*-
2 * Copyright (c) 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 * Paul Borman at Krystal Technologies.
7 *
8 * Redistribution and use in source and binary forms, with or without

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

32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#include <sys/cdefs.h>
38__FBSDID("$FreeBSD$");
39
40#include <errno.h>
40#include <stdlib.h>
41#include <stddef.h>
42#include <rune.h>
43
44int
45mblen(s, n)
46 const char *s;
47 size_t n;
48{
49 char const *e;
50
51 if (s == 0 || *s == 0)
52 return (0); /* No support for state dependent encodings. */
53
41#include <stdlib.h>
42#include <stddef.h>
43#include <rune.h>
44
45int
46mblen(s, n)
47 const char *s;
48 size_t n;
49{
50 char const *e;
51
52 if (s == 0 || *s == 0)
53 return (0); /* No support for state dependent encodings. */
54
54 if (sgetrune(s, n, &e) == _INVALID_RUNE)
55 if (sgetrune(s, n, &e) == _INVALID_RUNE) {
56 errno = EILSEQ;
55 return (s - e);
57 return (s - e);
58 }
56 return (e - s);
57}
59 return (e - s);
60}