| 1 | /* Routines for dealing with '\0' separated arg vectors.
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| 2 | Copyright (C) 1995,96,97,2002 Free Software Foundation, Inc.
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| 3 | This file is part of the GNU C Library.
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| 4 | Written by Miles Bader <miles@gnu.org>
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| 5 |
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| 6 | The GNU C Library is free software; you can redistribute it and/or
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| 7 | modify it under the terms of the GNU Lesser General Public
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| 8 | License as published by the Free Software Foundation; either
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| 9 | version 2.1 of the License, or (at your option) any later version.
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| 10 |
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| 11 | The GNU C Library is distributed in the hope that it will be useful,
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 14 | Lesser General Public License for more details.
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| 15 |
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| 16 | You should have received a copy of the GNU Lesser General Public
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| 17 | License along with the GNU C Library; if not, write to the Free
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| 18 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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| 19 | 02111-1307 USA. */
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| 20 |
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| 21 | #include <argz.h>
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| 22 | #include <string.h>
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| 23 | #include <stdlib.h>
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| 24 |
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| 25 | /* Delete ENTRY from ARGZ & ARGZ_LEN, if any. */
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| 26 | void
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| 27 | argz_delete (char **argz, size_t *argz_len, char *entry)
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| 28 | {
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| 29 | if (entry)
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| 30 | /* Get rid of the old value for NAME. */
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| 31 | {
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| 32 | size_t entry_len = strlen (entry) + 1;
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| 33 | *argz_len -= entry_len;
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| 34 | memmove (entry, entry + entry_len, *argz_len - (entry - *argz));
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| 35 | if (*argz_len == 0)
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| 36 | {
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| 37 | free (*argz);
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| 38 | *argz = 0;
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| 39 | }
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| 40 | }
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| 41 | }
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| 42 | libc_hidden_def (argz_delete)
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