func_env.c File Reference
Environment related dialplan functions. More...
#include "asterisk.h"#include <sys/stat.h>#include "asterisk/module.h"#include "asterisk/channel.h"#include "asterisk/pbx.h"#include "asterisk/utils.h"#include "asterisk/app.h"
Include dependency graph for func_env.c:
Go to the source code of this file.
Functions | |
| static void | __reg_module (void) |
| static void | __unreg_module (void) |
| static int | env_read (struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len) |
| static int | env_write (struct ast_channel *chan, const char *cmd, char *data, const char *value) |
| static int | file_read (struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len) |
| static int | load_module (void) |
| static int | stat_read (struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len) |
| static int | unload_module (void) |
Variables | |
| static struct ast_module_info | __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Environment/filesystem dialplan functions" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, } |
| static struct ast_module_info * | ast_module_info = &__mod_info |
| static struct ast_custom_function | env_function |
| static struct ast_custom_function | file_function |
| static struct ast_custom_function | stat_function |
Detailed Description
Environment related dialplan functions.
Definition in file func_env.c.
Function Documentation
| static void __reg_module | ( | void | ) | [static] |
Definition at line 268 of file func_env.c.
| static void __unreg_module | ( | void | ) | [static] |
Definition at line 268 of file func_env.c.
| static int env_read | ( | struct ast_channel * | chan, |
| const char * | cmd, | ||
| char * | data, | ||
| char * | buf, | ||
| size_t | len | ||
| ) | [static] |
Definition at line 90 of file func_env.c.
References ast_copy_string().
{
char *ret = NULL;
*buf = '\0';
if (data)
ret = getenv(data);
if (ret)
ast_copy_string(buf, ret, len);
return 0;
}
| static int env_write | ( | struct ast_channel * | chan, |
| const char * | cmd, | ||
| char * | data, | ||
| const char * | value | ||
| ) | [static] |
Definition at line 106 of file func_env.c.
References ast_strlen_zero(), setenv(), and unsetenv().
{
if (!ast_strlen_zero(data)) {
if (!ast_strlen_zero(value)) {
setenv(data, value, 1);
} else {
unsetenv(data);
}
}
return 0;
}
| static int file_read | ( | struct ast_channel * | chan, |
| const char * | cmd, | ||
| char * | data, | ||
| char * | buf, | ||
| size_t | len | ||
| ) | [static] |
Definition at line 163 of file func_env.c.
References AST_APP_ARG, ast_copy_string(), AST_DECLARE_APP_ARGS, ast_free, ast_log(), ast_read_textfile(), AST_STANDARD_APP_ARGS, len(), and LOG_WARNING.
{
AST_DECLARE_APP_ARGS(args,
AST_APP_ARG(filename);
AST_APP_ARG(offset);
AST_APP_ARG(length);
);
int offset = 0, length, res = 0;
char *contents;
size_t contents_len;
AST_STANDARD_APP_ARGS(args, data);
if (args.argc > 1) {
offset = atoi(args.offset);
}
if (args.argc > 2) {
/* The +1/-1 in this code section is to accomodate for the terminating NULL. */
if ((length = atoi(args.length) + 1) > len) {
ast_log(LOG_WARNING, "Length %d is greater than the max (%d). Truncating output.\n", length - 1, (int)len - 1);
length = len;
}
} else {
length = len;
}
if (!(contents = ast_read_textfile(args.filename))) {
return -1;
}
do {
contents_len = strlen(contents);
if (offset > contents_len) {
res = -1;
break;
}
if (offset >= 0) {
if (length < 0) {
if (contents_len - offset + length < 0) {
/* Nothing left after trimming */
res = -1;
break;
}
ast_copy_string(buf, &contents[offset], contents_len + length);
} else {
ast_copy_string(buf, &contents[offset], length);
}
} else {
if (offset * -1 > contents_len) {
ast_log(LOG_WARNING, "Offset is larger than the file size.\n");
offset = contents_len * -1;
}
ast_copy_string(buf, &contents[contents_len + offset], length);
}
} while (0);
ast_free(contents);
return res;
}
| static int load_module | ( | void | ) | [static] |
Definition at line 257 of file func_env.c.
References ast_custom_function_register.
{
int res = 0;
res |= ast_custom_function_register(&env_function);
res |= ast_custom_function_register(&stat_function);
res |= ast_custom_function_register(&file_function);
return res;
}
| static int stat_read | ( | struct ast_channel * | chan, |
| const char * | cmd, | ||
| char * | data, | ||
| char * | buf, | ||
| size_t | len | ||
| ) | [static] |
Definition at line 120 of file func_env.c.
References ast_copy_string(), and strsep().
{
char *action;
struct stat s;
ast_copy_string(buf, "0", len);
action = strsep(&data, ",");
if (stat(data, &s)) {
return 0;
} else {
switch (*action) {
case 'e':
strcpy(buf, "1");
break;
case 's':
snprintf(buf, len, "%d", (unsigned int) s.st_size);
break;
case 'f':
snprintf(buf, len, "%d", S_ISREG(s.st_mode) ? 1 : 0);
break;
case 'd':
snprintf(buf, len, "%d", S_ISDIR(s.st_mode) ? 1 : 0);
break;
case 'M':
snprintf(buf, len, "%d", (int) s.st_mtime);
break;
case 'A':
snprintf(buf, len, "%d", (int) s.st_mtime);
break;
case 'C':
snprintf(buf, len, "%d", (int) s.st_ctime);
break;
case 'm':
snprintf(buf, len, "%o", (int) s.st_mode);
break;
}
}
return 0;
}
| static int unload_module | ( | void | ) | [static] |
Definition at line 246 of file func_env.c.
References ast_custom_function_unregister().
{
int res = 0;
res |= ast_custom_function_unregister(&env_function);
res |= ast_custom_function_unregister(&stat_function);
res |= ast_custom_function_unregister(&file_function);
return res;
}
Variable Documentation
struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "Environment/filesystem dialplan functions" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, } [static] |
Definition at line 268 of file func_env.c.
struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 268 of file func_env.c.
struct ast_custom_function env_function [static] |
Initial value:
Definition at line 225 of file func_env.c.
struct ast_custom_function file_function [static] |
Initial value:
{
.name = "FILE",
.read = file_read
}
Definition at line 236 of file func_env.c.
struct ast_custom_function stat_function [static] |
Initial value:
{
.name = "STAT",
.read = stat_read
}
Definition at line 231 of file func_env.c.
