29 lines
560 B
C
29 lines
560 B
C
/*
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* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
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* See the copyright notice in the ACK home directory, in the file "Copyright".
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*/
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/* $Header$ */
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#include <stdlib.h>
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extern const char ***_penviron;
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char *
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getenv(const char *name)
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{
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register const char **v = *_penviron;
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register const char *p, *q;
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if (v == NULL || name == NULL)
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return (char *)NULL;
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while ((p = *v++) != NULL) {
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q = name;
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while (*q && (*q == *p++))
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q++;
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if (*q || (*p != '='))
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continue;
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return (char *)p + 1;
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}
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return (char *)NULL;
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}
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