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 = ASTERISK_GPL_KEY , .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 166 of file func_base64.c.

__unreg_module()

static void __unreg_module ( void  )

static

Definition at line 166 of file func_base64.c.

AST_MODULE_SELF_SYM()

struct ast_module * AST_MODULE_SELF_SYM

(

void

)

Definition at line 166 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 130 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 81 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 136 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 160 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 154 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 = ASTERISK_GPL_KEY , .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 166 of file func_base64.c.

ast_module_info

const struct ast_module_info* ast_module_info = &__mod_info

static

Definition at line 166 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 148 of file func_base64.c.

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

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 142 of file func_base64.c.

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

Referenced by load_module(), and unload_module().