diff options
Diffstat (limited to 'tiff/port/strtoull.c')
| -rw-r--r-- | tiff/port/strtoull.c | 108 |
1 files changed, 18 insertions, 90 deletions
diff --git a/tiff/port/strtoull.c b/tiff/port/strtoull.c index fb7739cc..91e4ddfb 100644 --- a/tiff/port/strtoull.c +++ b/tiff/port/strtoull.c @@ -1,6 +1,9 @@ +/* $NetBSD: strtoul.c,v 1.3 2008/08/20 19:58:34 oster Exp $ */ + /*- - * Copyright (c) 1992, 1993 - * The Regents of the University of California. All rights reserved. + * Copyright (c) 2005 The DragonFly Project. All rights reserved. + * Copyright (c) 2003 Citrus Project, + * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -10,18 +13,11 @@ * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) @@ -31,86 +27,18 @@ * SUCH DAMAGE. */ -#include <limits.h> -#include <errno.h> +#if 0 +__RCSID("$NetBSD: strtoul.c,v 1.3 2008/08/20 19:58:34 oster Exp $"); +#endif + +#include <assert.h> #include <ctype.h> +#include <errno.h> +#include <limits.h> #include <stdlib.h> -/* - * Convert a string to an unsigned long long integer. - * - * Assumes that the upper and lower case - * alphabets and digits are each contiguous. - */ -unsigned long long -strtoull(const char *nptr, char **endptr, int base) -{ - const char *s; - unsigned long long acc; - char c; - unsigned long long cutoff; - int neg, any, cutlim; - - /* - * See strtoq for comments as to the logic used. - */ - s = nptr; - do { - c = *s++; - } while (isspace((unsigned char)c)); - if (c == '-') { - neg = 1; - c = *s++; - } else { - neg = 0; - if (c == '+') - c = *s++; - } - if ((base == 0 || base == 16) && - c == '0' && (*s == 'x' || *s == 'X') && - ((s[1] >= '0' && s[1] <= '9') || - (s[1] >= 'A' && s[1] <= 'F') || - (s[1] >= 'a' && s[1] <= 'f'))) { - c = s[1]; - s += 2; - base = 16; - } - if (base == 0) - base = c == '0' ? 8 : 10; - acc = any = 0; - if (base < 2 || base > 36) - goto noconv; +#define _FUNCNAME strtoull +#define __UINT unsigned long long int +#define __UINT_MAX ULLONG_MAX - cutoff = ULLONG_MAX / base; - cutlim = ULLONG_MAX % base; - for ( ; ; c = *s++) { - if (c >= '0' && c <= '9') - c -= '0'; - else if (c >= 'A' && c <= 'Z') - c -= 'A' - 10; - else if (c >= 'a' && c <= 'z') - c -= 'a' - 10; - else - break; - if (c >= base) - break; - if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim)) - any = -1; - else { - any = 1; - acc *= base; - acc += c; - } - } - if (any < 0) { - acc = ULLONG_MAX; - errno = ERANGE; - } else if (!any) { -noconv: - errno = EINVAL; - } else if (neg) - acc = -acc; - if (endptr != NULL) - *endptr = (char *)(any ? s - 1 : nptr); - return (acc); -} +#include "_strtoul.h" |