386 lines
7 KiB
C
Executable file
386 lines
7 KiB
C
Executable file
/* Copyright (C) 1991 Free Software Foundation, Inc.
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This file contains excerpts of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include "sysincludes.h"
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#include "mtools.h"
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#ifndef HAVE_STRDUP
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char *strdup(const char *str)
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{
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char *nstr;
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if (str == (char*)0)
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return 0;
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nstr = (char*)malloc((strlen(str) + 1));
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if (nstr == (char*)0)
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{
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(void)fprintf(stderr, "strdup(): not enough memory to duplicate `%s'\n",
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str);
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exit(1);
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}
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(void)strcpy(nstr, str);
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return nstr;
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}
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#endif /* HAVE_STRDUP */
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#ifndef HAVE_MEMCPY
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/*
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* Copy contents of memory (with possible overlapping).
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*/
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char *memcpy(char *s1, const char *s2, size_t n)
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{
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bcopy(s2, s1, n);
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return(s1);
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}
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#endif
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#ifndef HAVE_MEMSET
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/*
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* Copies the character c, n times to string s
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*/
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char *memset(char *s, char c, size_t n)
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{
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char *s1 = s;
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while (n > 0) {
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--n;
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*s++ = c;
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}
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return(s1);
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}
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#endif /* HAVE_MEMSET */
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#ifndef HAVE_STRCHR
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char * strchr (const char* s, int c)
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{
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if (!s) return NULL;
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while (*s && *s != c) s++;
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if (*s)
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return (char*) s;
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else
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return NULL;
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}
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#endif
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#ifndef HAVE_STRRCHR
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char * strrchr (const char* s1, int c)
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{
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char* s = (char*) s1;
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char* start = (char*) s;
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if (!s) return NULL;
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s += strlen(s)-1;
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while (*s != c && (unsigned long) s != (unsigned long) start) s--;
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if ((unsigned long) s == (unsigned long) start && *s != c)
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return NULL;
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else
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return s;
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}
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#endif
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#ifndef HAVE_STRPBRK
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/*
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* Return ptr to first occurrence of any character from `brkset'
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* in the character string `string'; NULL if none exists.
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*/
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char *strpbrk(const char *string, const char *brkset)
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{
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register char *p;
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if (!string || !brkset)
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return(0);
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do {
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for (p = brkset; *p != '\0' && *p != *string; ++p)
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;
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if (*p != '\0')
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return(string);
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}
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while (*string++);
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return(0);
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}
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#endif /* HAVE_STRPBRK */
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#ifndef HAVE_STRTOUL
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static int getdigit(char a, int max)
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{
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int dig;
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if(a < '0')
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return -1;
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if(a <= '9') {
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dig = a - '0';
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} else if(a >= 'a')
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dig = a - 'a' + 10;
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else if(a >= 'A')
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dig = a - 'A' + 10;
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if(dig >= max)
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return -1;
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else
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return dig;
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}
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unsigned long strtoul(const char *string, char **eptr, int base)
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{
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int accu, dig;
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if(base < 1 || base > 36) {
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if(string[0] == '0') {
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switch(string[1]) {
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case 'x':
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case 'X':
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return strtoul(string+2, eptr, 16);
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case 'b':
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case 'B':
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return strtoul(string+2, eptr, 2);
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default:
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return strtoul(string, eptr, 8);
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}
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}
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return strtoul(string, eptr, 10);
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}
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if(base == 16 && string[0] == '0' &&
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(string[1] == 'x' || string[1] == 'X'))
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string += 2;
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if(base == 2 && string[0] == '0' &&
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(string[1] == 'b' || string[1] == 'B'))
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string += 2;
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accu = 0;
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while( (dig = getdigit(*string, base)) != -1 ) {
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accu = accu * base + dig;
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string++;
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}
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if(eptr)
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*eptr = (char *) string;
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return accu;
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}
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#endif /* HAVE_STRTOUL */
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#ifndef HAVE_STRTOL
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long strtol(const char *string, char **eptr, int base)
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{
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long l;
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if(*string == '-') {
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return -(long) strtoul(string+1, eptr, base);
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} else {
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if (*string == '+')
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string ++;
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return (long) strtoul(string, eptr, base);
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}
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}
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#endif
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#ifndef HAVE_STRSPN
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/* Return the length of the maximum initial segment
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of S which contains only characters in ACCEPT. */
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size_t strspn(const char *s, const char *accept)
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{
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register char *p;
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register char *a;
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register size_t count = 0;
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for (p = s; *p != '\0'; ++p)
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{
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for (a = accept; *a != '\0'; ++a)
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if (*p == *a)
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break;
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if (*a == '\0')
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return count;
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else
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++count;
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}
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return count;
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}
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#endif /* HAVE_STRSPN */
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#ifndef HAVE_STRCSPN
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/* Return the length of the maximum inital segment of S
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which contains no characters from REJECT. */
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size_t strcspn (const char *s, const char *reject)
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{
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register size_t count = 0;
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while (*s != '\0')
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if (strchr (reject, *s++) == NULL)
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++count;
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else
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return count;
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return count;
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}
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#endif /* HAVE_STRCSPN */
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#ifndef HAVE_STRERROR
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#ifndef DECL_SYS_ERRLIST
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extern char *sys_errlist[];
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#endif
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char *strerror(int errno)
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{
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return sys_errlist[errno];
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}
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#endif
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#ifndef HAVE_STRCASECMP
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/* Compare S1 and S2, ignoring case, returning less than, equal to or
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greater than zero if S1 is lexiographically less than,
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equal to or greater than S2. */
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int strcasecmp(const char *s1, const char *s2)
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{
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register const unsigned char *p1 = (const unsigned char *) s1;
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register const unsigned char *p2 = (const unsigned char *) s2;
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unsigned char c1, c2;
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if (p1 == p2)
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return 0;
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do
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{
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c1 = tolower (*p1++);
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c2 = tolower (*p2++);
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if (c1 == '\0')
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break;
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}
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while (c1 == c2);
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return c1 - c2;
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}
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#endif
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#ifndef HAVE_STRCASECMP
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/* Compare S1 and S2, ignoring case, returning less than, equal to or
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greater than zero if S1 is lexiographically less than,
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equal to or greater than S2. */
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int strncasecmp(const char *s1, const char *s2, size_t n)
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{
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register const unsigned char *p1 = (const unsigned char *) s1;
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register const unsigned char *p2 = (const unsigned char *) s2;
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unsigned char c1, c2;
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if (p1 == p2)
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return 0;
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c1 = c2 = 1;
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while (c1 && c1 == c2 && n-- > 0)
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{
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c1 = tolower (*p1++);
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c2 = tolower (*p2++);
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}
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return c1 - c2;
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}
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#endif
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#ifndef HAVE_GETPASS
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char *getpass(const char *prompt)
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{
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static char password[129];
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int l;
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fprintf(stderr,"%s",prompt);
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fgets(password, 128, stdin);
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l = strlen(password);
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if(l && password[l-1] == '\n')
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password[l-1] = '\0';
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return password;
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}
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#endif
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#ifndef HAVE_ATEXIT
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#ifdef HAVE_ON_EXIT
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int atexit(void (*function)(void))
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{
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return on_exit( (void(*)(int,void*)) function, 0);
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}
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#else
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typedef struct exitCallback {
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void (*function) (void);
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struct exitCallback *next;
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} exitCallback_t;
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static exitCallback_t *callback = 0;
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int atexit(void (*function) (void))
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{
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exitCallback_t *newCallback;
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newCallback = New(exitCallback_t);
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if(!newCallback) {
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printOom();
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exit(1);
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}
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newCallback->function = function;
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newCallback->next = callback;
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callback = newCallback;
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return 0;
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}
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#undef exit
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void myexit(int code)
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{
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void (*function)(void);
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while(callback) {
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function = callback->function;
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callback = callback->next;
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function();
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}
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exit(code);
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}
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#endif
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#endif
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/*#ifndef HAVE_BASENAME*/
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const char *_basename(const char *filename)
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{
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char *ptr;
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ptr = strrchr(filename, '/');
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if(ptr)
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return ptr+1;
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else
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return filename;
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}
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/*#endif*/
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