diff options
Diffstat (limited to 'rubbos/app/httpd-2.0.64/srclib/apr/file_io/unix/tempdir.c')
| -rw-r--r-- | rubbos/app/httpd-2.0.64/srclib/apr/file_io/unix/tempdir.c | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/rubbos/app/httpd-2.0.64/srclib/apr/file_io/unix/tempdir.c b/rubbos/app/httpd-2.0.64/srclib/apr/file_io/unix/tempdir.c new file mode 100644 index 00000000..62f52076 --- /dev/null +++ b/rubbos/app/httpd-2.0.64/srclib/apr/file_io/unix/tempdir.c @@ -0,0 +1,136 @@ +/* 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. + */ +#include "apr_private.h" +#include "apr_file_io.h" +#include "apr_strings.h" +#include "apr_env.h" + +/* + * FIXME + * Currently, this variable is a bit of misnomer. + * The intention is to have this in APR's global pool so that we don't have + * to go through this every time. + */ +static char global_temp_dir[APR_PATH_MAX+1] = { 0 }; + +/* Try to open a temporary file in the temporary dir, write to it, + and then close it. */ +static int test_tempdir(const char *temp_dir, apr_pool_t *p) +{ + apr_file_t *dummy_file; + const char *path = apr_pstrcat(p, temp_dir, "/apr-tmp.XXXXXX", NULL); + + if (apr_file_mktemp(&dummy_file, (char *)path, 0, p) == APR_SUCCESS) { + if (apr_file_putc('!', dummy_file) == APR_SUCCESS) { + if (apr_file_close(dummy_file) == APR_SUCCESS) { + return 1; + } + } + } + return 0; +} + + +APR_DECLARE(apr_status_t) apr_temp_dir_get(const char **temp_dir, + apr_pool_t *p) +{ + apr_status_t apr_err; + const char *try_dirs[] = { "/tmp", "/usr/tmp", "/var/tmp" }; + const char *try_envs[] = { "TMP", "TEMP", "TMPDIR" }; + char *cwd; + int i; + + /* Our goal is to find a temporary directory suitable for writing + into. We'll only pay the price once if we're successful -- we + cache our successful find. Here's the order in which we'll try + various paths: + + $TMP + $TEMP + $TMPDIR + "C:\TEMP" (windows only) + "SYS:\TMP" (netware only) + "/tmp" + "/var/tmp" + "/usr/tmp" + P_tmpdir (POSIX define) + `pwd` + + NOTE: This algorithm is basically the same one used by Python + 2.2's tempfile.py module. */ + + /* Try the environment first. */ + for (i = 0; i < (sizeof(try_envs) / sizeof(const char *)); i++) { + char *value; + apr_err = apr_env_get(&value, try_envs[i], p); + if ((apr_err == APR_SUCCESS) && value) { + apr_size_t len = strlen(value); + if (len && (len < APR_PATH_MAX) && test_tempdir(value, p)) { + memcpy(global_temp_dir, value, len + 1); + goto end; + } + } + } + +#ifdef WIN32 + /* Next, on Win32, try the C:\TEMP directory. */ + if (test_tempdir("C:\\TEMP", p)) { + memcpy(global_temp_dir, "C:\\TEMP", 7 + 1); + goto end; + } +#endif +#ifdef NETWARE + /* Next, on NetWare, try the SYS:/TMP directory. */ + if (test_tempdir("SYS:/TMP", p)) { + memcpy(global_temp_dir, "SYS:/TMP", 8 + 1); + goto end; + } +#endif + + /* Next, try a set of hard-coded paths. */ + for (i = 0; i < (sizeof(try_dirs) / sizeof(const char *)); i++) { + if (test_tempdir(try_dirs[i], p)) { + memcpy(global_temp_dir, try_dirs[i], strlen(try_dirs[i]) + 1); + goto end; + } + } + +#ifdef P_tmpdir + /* + * If we have it, use the POSIX definition of where + * the tmpdir should be + */ + if (test_tempdir(P_tmpdir, p)) { + memcpy(global_temp_dir, P_tmpdir, strlen(P_tmpdir) +1); + goto end; + } +#endif + + /* Finally, try the current working directory. */ + if (APR_SUCCESS == apr_filepath_get(&cwd, APR_FILEPATH_NATIVE, p)) { + if (test_tempdir(cwd, p)) { + memcpy(global_temp_dir, cwd, strlen(cwd) + 1); + goto end; + } + } + +end: + if (global_temp_dir[0]) { + *temp_dir = apr_pstrdup(p, global_temp_dir); + return APR_SUCCESS; + } + return APR_EGENERAL; +} |