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57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
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/* Get current working directory. NaCl version.
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Copyright (C) 2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <unistd.h>
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#include <limits.h>
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#include <stdlib.h>
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#include <nacl-interfaces.h>
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/* Get the pathname of the current working directory,
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and put it in SIZE bytes of BUF. Returns NULL if the
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directory couldn't be determined or SIZE was too small.
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If successful, returns BUF. In GNU, if BUF is NULL,
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an array is allocated with `malloc'; the array is SIZE
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bytes long, unless SIZE <= 0, in which case it is as
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big as necessary. */
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char *
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__getcwd (char *buf, size_t size)
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{
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char *use_buf = buf;
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if (buf == NULL)
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{
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if (size == 0)
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size = PATH_MAX;
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use_buf = malloc (size);
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if (__glibc_unlikely (use_buf == NULL))
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return NULL;
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}
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int error = __nacl_irt_dev_filename.getcwd (use_buf, size);
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if (__glibc_unlikely (error))
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{
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if (use_buf != buf)
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free (use_buf);
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errno = error;
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return NULL;
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}
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return use_buf;
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}
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weak_alias (__getcwd, getcwd)
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