64 lines
1.2 KiB
C
Executable File
64 lines
1.2 KiB
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/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */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) 1983, 1984, 1985, 1986, 1987, 1988 Sun Microsystems, Inc.
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* All Rights Reserved.
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*/
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/*
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* Derived from UNIX(R) and Berkeley 4.2 BSD licensed from AT&T
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* Information Systems, Inc. and The Regents of the University of
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* California, respectively.
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*/
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#ident "@(#)printenv.c 1.1 90/04/28 SMI" /* SVr4.0 1.1 */
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/*
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* printenv
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*/
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extern char **environ;
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main(argc, argv)
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int argc;
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char *argv[];
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{
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register char **ep;
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int found = 0;
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argc--, argv++;
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if (environ)
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for (ep = environ; *ep; ep++)
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if (argc == 0 || prefix(argv[0], *ep)) {
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register char *cp = *ep;
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found++;
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if (argc) {
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while (*cp && *cp != '=')
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cp++;
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if (*cp == '=')
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cp++;
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}
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(void)printf("%s\n", cp);
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}
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exit (!found);
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/* NOTREACHED */
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}
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prefix(cp, dp)
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char *cp, *dp;
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{
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while (*cp && *dp && *cp == *dp)
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cp++, dp++;
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if (*cp == 0)
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return (*dp == '=');
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return (0);
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}
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