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* errno.h [!__error_t_defined] (error_t): New type. * sysdeps/mach/hurd/errnos.awk: #define __error_t_defined after the typedef in errnos.h. * string/envz.c, string/envz.h: New files. * string/argz.h, string/argz-append.c, string/argz-count.c, string/argz-create.c, string/argz-delete.c, string/argz-extract.c, string/argz-insert.c, string/argz-stringify.c: New files. * string/Makefile (routines): Add envz, argz-*. (headers): Add argz.h, envz.h.
42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/* Routines for dealing with '\0' separated arg vectors.
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Copyright (C) 1995, 1996 Free Software Foundation, Inc.
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Written by Miles Bader <miles@gnu.ai.mit.edu>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2, or (at
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your option) any later version.
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This program is distributed in the hope that it will be useful, but
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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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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <argz.h>
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#include <string.h>
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#include <stdlib.h>
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/* Delete ENTRY from ARGZ & ARGZ_LEN, if any. */
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void
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argz_delete (char **argz, size_t *argz_len, char *entry)
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{
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if (entry)
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/* Get rid of the old value for NAME. */
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{
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size_t entry_len = strlen (entry) + 1;
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*argz_len -= entry_len;
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memcpy (entry, entry + entry_len, *argz_len - (entry - *argz));
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if (*argz_len == 0)
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{
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free (*argz);
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*argz = 0;
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}
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}
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}
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