func_base64.c File Reference

Use the base64 as functions. More...

#include "asterisk.h"
#include "asterisk/module.h"
#include "asterisk/pbx.h"
#include "asterisk/utils.h"
#include "asterisk/strings.h"

Include dependency graph for func_base64.c:

Go to the source code of this file.

Functions
static void	__reg_module (void)
static void	__unreg_module (void)
struct ast_module *	AST_MODULE_SELF_SYM (void)
static int	base64_buf_helper (struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len)
static int	base64_helper (struct ast_channel *chan, const char *cmd, char *data, char *buf, struct ast_str **str, ssize_t len)
static int	base64_str_helper (struct ast_channel *chan, const char *cmd, char *data, struct ast_str **buf, ssize_t len)
static int	load_module (void)
static int	unload_module (void)

Variables
static struct ast_module_info	__mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "base64 encode/decode 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, .load_pri = AST_MODPRI_DEFAULT, .support_level = AST_MODULE_SUPPORT_CORE, }
static const struct ast_module_info *	ast_module_info = &__mod_info
static struct ast_custom_function	base64_decode_function
static struct ast_custom_function	base64_encode_function

Detailed Description

Use the base64 as functions.

Definition in file func_base64.c.

Function Documentation

__reg_module()

static void __reg_module ( void  )

static

Definition at line 160 of file func_base64.c.

__unreg_module()

static void __unreg_module ( void  )

static

Definition at line 160 of file func_base64.c.

AST_MODULE_SELF_SYM()

struct ast_module * AST_MODULE_SELF_SYM

(

void

)

Definition at line 160 of file func_base64.c.

base64_buf_helper()

static int base64_buf_helper ( struct ast_channel *  chan, const char *  cmd, char *  data, char *  buf, size_t  len  )

static

Definition at line 124 of file func_base64.c.

{
    return base64_helper(chan, cmd, data, buf, NULL, len);
}

References base64_helper(), buf, len(), and NULL.

base64_helper()

static int base64_helper ( struct ast_channel *  chan, const char *  cmd, char *  data, char *  buf, struct ast_str **  str, ssize_t  len  )

static

Definition at line 75 of file func_base64.c.

{
    if (ast_strlen_zero(data)) {
        ast_log(LOG_WARNING, "Syntax: %s(<data>) - missing argument!\n", cmd);
        return -1;
    }
 
    if (cmd[7] == 'E') {
        if (buf) {
            ast_base64encode(buf, (unsigned char *) data, strlen(data), len);
        } else {
            if (len >= 0) {
                /* This calculation accounts for padding and the trailing 0 byte. Borrowed
                   from utils.c */
                size_t bytes_needed_to_encode_data = ((strlen(data) * 4 / 3 + 3) & ~3) + 1;
                ast_str_make_space(str, len ? len : ast_str_strlen(*str) + bytes_needed_to_encode_data);
            }
            ast_base64encode(ast_str_buffer(*str) + ast_str_strlen(*str), (unsigned char *) data, strlen(data), ast_str_size(*str) - ast_str_strlen(*str));
            ast_str_update(*str);
        }
    } else {
        int decoded_len;
        if (buf) {
            decoded_len = ast_base64decode((unsigned char *) buf, data, len);
            /* add a terminating null at the end of buf, or at the
             * end of our decoded string, which ever is less */
            buf[decoded_len <= (len - 1) ? decoded_len : len - 1] = '\0';
        } else {
            if (len >= 0) {
                ast_str_make_space(str, len ? len : ast_str_strlen(*str) + strlen(data) * 3 / 4 + 2);
            }
            decoded_len = ast_base64decode((unsigned char *) ast_str_buffer(*str) + ast_str_strlen(*str), data, ast_str_size(*str) - ast_str_strlen(*str));
            if (len)
                /* add a terminating null at the end of our
                 * buffer, or at the end of our decoded string,
                 * which ever is less */
                ast_str_buffer(*str)[decoded_len <= (len - 1) ? decoded_len : len - 1] = '\0';
            else
                /* space for the null is allocated above */
                ast_str_buffer(*str)[decoded_len] = '\0';
 
            ast_str_update(*str);
        }
    }
 
    return 0;
}

References ast_base64decode(), ast_base64encode(), ast_log, ast_str_buffer(), ast_str_make_space, ast_str_size(), ast_str_strlen(), ast_str_update(), ast_strlen_zero(), buf, len(), LOG_WARNING, and str.

Referenced by base64_buf_helper(), and base64_str_helper().

base64_str_helper()

static int base64_str_helper ( struct ast_channel *  chan, const char *  cmd, char *  data, struct ast_str **  buf, ssize_t  len  )

static

Definition at line 130 of file func_base64.c.

{
    return base64_helper(chan, cmd, data, NULL, buf, len);
}

References base64_helper(), buf, len(), and NULL.

load_module()

static int load_module ( void  )

static

Definition at line 154 of file func_base64.c.

{
    return ast_custom_function_register(&base64_encode_function) |
        ast_custom_function_register(&base64_decode_function);
}

References ast_custom_function_register, base64_decode_function, and base64_encode_function.

unload_module()

static int unload_module ( void  )

static

Definition at line 148 of file func_base64.c.

{
    return ast_custom_function_unregister(&base64_encode_function) |
        ast_custom_function_unregister(&base64_decode_function);
}

References ast_custom_function_unregister(), base64_decode_function, and base64_encode_function.

Variable Documentation

__mod_info

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "base64 encode/decode 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, .load_pri = AST_MODPRI_DEFAULT, .support_level = AST_MODULE_SUPPORT_CORE, }

static

Definition at line 160 of file func_base64.c.

ast_module_info

const struct ast_module_info* ast_module_info = &__mod_info

static

Definition at line 160 of file func_base64.c.

base64_decode_function

struct ast_custom_function base64_decode_function

static

Initial value:

= {
    .name = "BASE64_DECODE",
    .read = base64_buf_helper,
    .read2 = base64_str_helper,
}

Definition at line 142 of file func_base64.c.

Referenced by load_module(), and unload_module().

base64_encode_function

struct ast_custom_function base64_encode_function

static

Initial value:

= {
    .name = "BASE64_ENCODE",
    .read = base64_buf_helper,
    .read2 = base64_str_helper,
}

Definition at line 136 of file func_base64.c.

Referenced by load_module(), and unload_module().