37 lines
717 B
C
Executable File
37 lines
717 B
C
Executable File
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
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/* All Rights Reserved */
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/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
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/* The copyright notice above does not evidence any */
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/* actual or intended publication of such source code. */
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/*
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* Copyright (c) 1985 AT&T
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* All Rights Reserved
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*/
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#ident "@(#)estrtok.c 1.4 92/07/14 SMI" /* SVr4.0 1.1 */
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#include <stdio.h>
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#include <string.h>
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char *
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estrtok(env, ptr, sep)
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char **env;
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char *ptr;
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char sep[];
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{
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if (ptr == NULL)
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ptr = *env;
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else
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*env = ptr;
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if (ptr == NULL || *ptr == '\0')
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return NULL;
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ptr += strspn(ptr, sep);
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*env = ptr + strcspn(ptr, sep);
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if (**env != '\0') {
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**env = '\0';
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(*env)++;
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}
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return ptr;
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}
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