freebsd-dev/contrib/apr/file_io/unix/filepath_util.c
Peter Wemm 937a200089 Introduce svnlite so that we can check out our source code again.
This is actually a fully functional build except:
* All internal shared libraries are static linked to make sure there
  is no interference with ports (and to reduce build time).
* It does not have the python/perl/etc plugin or API support.
* By default, it installs as "svnlite" rather than "svn".
* If WITH_SVN added in make.conf, you get "svn".
* If WITHOUT_SVNLITE is in make.conf, this is completely disabled.

To be absolutely clear, this is not intended for any use other than
checking out freebsd source and committing, like we once did with cvs.

It should be usable for small scale local repositories that don't
need the python/perl plugin architecture.
2013-06-18 02:53:45 +00:00

112 lines
3.5 KiB
C

/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define APR_WANT_STRFUNC
#define APR_WANT_MEMFUNC
#include "apr_want.h"
#include "apr_errno.h"
#include "apr_pools.h"
#include "apr_strings.h"
#include "apr_tables.h"
#include "apr_private.h"
apr_status_t apr_filepath_list_split_impl(apr_array_header_t **pathelts,
const char *liststr,
char separator,
apr_pool_t *p)
{
char *path, *part, *ptr;
char separator_string[2] = { '\0', '\0' };
apr_array_header_t *elts;
int nelts;
separator_string[0] = separator;
/* Count the number of path elements. We know there'll be at least
one even if path is an empty string. */
path = apr_pstrdup(p, liststr);
for (nelts = 0, ptr = path; ptr != NULL; ++nelts)
{
ptr = strchr(ptr, separator);
if (ptr)
++ptr;
}
/* Split the path into the array. */
elts = apr_array_make(p, nelts, sizeof(char*));
while ((part = apr_strtok(path, separator_string, &ptr)) != NULL)
{
if (*part == '\0') /* Ignore empty path components. */
continue;
*(char**)apr_array_push(elts) = part;
path = NULL; /* For the next call to apr_strtok */
}
*pathelts = elts;
return APR_SUCCESS;
}
apr_status_t apr_filepath_list_merge_impl(char **liststr,
apr_array_header_t *pathelts,
char separator,
apr_pool_t *p)
{
apr_size_t path_size = 0;
char *path;
int i;
/* This test isn't 100% certain, but it'll catch at least some
invalid uses... */
if (pathelts->elt_size != sizeof(char*))
return APR_EINVAL;
/* Calculate the size of the merged path */
for (i = 0; i < pathelts->nelts; ++i)
path_size += strlen(((char**)pathelts->elts)[i]);
if (path_size == 0)
{
*liststr = NULL;
return APR_SUCCESS;
}
if (i > 0) /* Add space for the separators */
path_size += (i - 1);
/* Merge the path components */
path = *liststr = apr_palloc(p, path_size + 1);
for (i = 0; i < pathelts->nelts; ++i)
{
/* ### Hmmmm. Calling strlen twice on the same string. Yuck.
But is is better than reallocation in apr_pstrcat? */
const char *part = ((char**)pathelts->elts)[i];
apr_size_t part_size = strlen(part);
if (part_size == 0) /* Ignore empty path components. */
continue;
if (i > 0)
*path++ = separator;
memcpy(path, part, part_size);
path += part_size;
}
*path = '\0';
return APR_SUCCESS;
}