Asterisk - The Open Source Telephony Project  18.5.0
Macros | Functions | Variables
func_iconv.c File Reference

Charset conversions. More...

#include "asterisk.h"
#include <ctype.h>
#include <iconv.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_iconv.c:

Go to the source code of this file.

Macros

#define AST_ICONV_CAST   void *
 

Functions

static void __reg_module (void)
 
static void __unreg_module (void)
 
struct ast_moduleAST_MODULE_SELF_SYM (void)
 
static int iconv_read (struct ast_channel *chan, const char *cmd, char *arguments, char *buf, size_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 = "Charset conversions" , .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 = "30ef0c93b36035ec78c9cfd712d36d9b" , .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_DEFAULT, .support_level = AST_MODULE_SUPPORT_CORE, }
 
static const struct ast_module_infoast_module_info = &__mod_info
 
static struct ast_custom_function iconv_function
 

Detailed Description

Charset conversions.

Author
Sven Slezak sunny.nosp@m.@mez.nosp@m.zo.ne.nosp@m.t

Definition in file func_iconv.c.

Macro Definition Documentation

◆ AST_ICONV_CAST

#define AST_ICONV_CAST   void *

Some systems define the second arg to iconv() as (const char *), while others define it as (char *). Cast it to a (void *) to suppress compiler warnings about it.

Definition at line 74 of file func_iconv.c.

Referenced by iconv_read().

Function Documentation

◆ __reg_module()

static void __reg_module ( void  )
static

Definition at line 143 of file func_iconv.c.

◆ __unreg_module()

static void __unreg_module ( void  )
static

Definition at line 143 of file func_iconv.c.

◆ AST_MODULE_SELF_SYM()

struct ast_module* AST_MODULE_SELF_SYM ( void  )

Definition at line 143 of file func_iconv.c.

◆ iconv_read()

static int iconv_read ( struct ast_channel chan,
const char *  cmd,
char *  arguments,
char *  buf,
size_t  len 
)
static

Definition at line 76 of file func_iconv.c.

References args, AST_APP_ARG, ast_debug, AST_DECLARE_APP_ARGS, AST_ICONV_CAST, ast_log, AST_STANDARD_APP_ARGS, ast_strdupa, ast_strlen_zero, errno, LOG_ERROR, LOG_WARNING, parse(), and text.

77 {
79  AST_APP_ARG(in_charset);
80  AST_APP_ARG(out_charset);
82  );
83  iconv_t cd;
84  size_t incount, outcount = len - 1;
85  char *parse;
86 
87  if (ast_strlen_zero(arguments)) {
88  ast_log(LOG_WARNING, "Syntax: ICONV(<in-charset>,<out-charset>,<text>) - missing arguments!\n");
89  return -1;
90  }
91 
92  parse = ast_strdupa(arguments);
94 
95  if (args.argc < 3) {
96  ast_log(LOG_WARNING, "Syntax: ICONV(<in-charset>,<out-charset>,<text>) %u\n", args.argc);
97  return -1;
98  }
99 
100  incount = strlen(args.text);
101 
102  ast_debug(1, "Iconv: \"%s\" %s -> %s\n", args.text, args.in_charset, args.out_charset);
103 
104  cd = iconv_open(args.out_charset, args.in_charset);
105 
106  if (cd == (iconv_t) -1) {
107  ast_log(LOG_ERROR, "conversion from '%s' to '%s' not available. type 'iconv -l' in a shell to list the supported charsets.\n", args.in_charset, args.out_charset);
108  return -1;
109  }
110 
111  if (iconv(cd, (AST_ICONV_CAST) &args.text, &incount, &buf, &outcount) == (size_t) -1) {
112  if (errno == E2BIG)
113  ast_log(LOG_WARNING, "Iconv: output buffer too small.\n");
114  else if (errno == EILSEQ)
115  ast_log(LOG_WARNING, "Iconv: illegal character.\n");
116  else if (errno == EINVAL)
117  ast_log(LOG_WARNING, "Iconv: incomplete character sequence.\n");
118  else
119  ast_log(LOG_WARNING, "Iconv: error %d: %s.\n", errno, strerror(errno));
120  }
121  *buf = '\0';
122  iconv_close(cd);
123 
124  return 0;
125 }
char buf[BUFSIZE]
Definition: eagi_proxy.c:66
#define AST_STANDARD_APP_ARGS(args, parse)
Performs the &#39;standard&#39; argument separation process for an application.
#define LOG_WARNING
Definition: logger.h:274
char * text
Definition: app_queue.c:1508
const char * args
#define ast_strlen_zero(foo)
Definition: strings.h:52
#define ast_debug(level,...)
Log a DEBUG message.
Definition: logger.h:452
#define ast_log
Definition: astobj2.c:42
#define AST_ICONV_CAST
Definition: func_iconv.c:74
#define ast_strdupa(s)
duplicate a string in memory from the stack
Definition: astmm.h:300
#define LOG_ERROR
Definition: logger.h:285
static int len(struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t buflen)
int errno
static void parse(struct mgcp_request *req)
Definition: chan_mgcp.c:1872
#define AST_DECLARE_APP_ARGS(name, arglist)
Declare a structure to hold an application&#39;s arguments.
#define AST_APP_ARG(name)
Define an application argument.

◆ load_module()

static int load_module ( void  )
static

Definition at line 138 of file func_iconv.c.

References ast_custom_function_register.

139 {
141 }
static struct ast_custom_function iconv_function
Definition: func_iconv.c:128
#define ast_custom_function_register(acf)
Register a custom function.
Definition: pbx.h:1508

◆ unload_module()

static int unload_module ( void  )
static

Definition at line 133 of file func_iconv.c.

References ast_custom_function_unregister().

134 {
136 }
int ast_custom_function_unregister(struct ast_custom_function *acf)
Unregister a custom function.
static struct ast_custom_function iconv_function
Definition: func_iconv.c:128

Variable Documentation

◆ __mod_info

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "Charset conversions" , .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 = "30ef0c93b36035ec78c9cfd712d36d9b" , .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_DEFAULT, .support_level = AST_MODULE_SUPPORT_CORE, }
static

Definition at line 143 of file func_iconv.c.

◆ ast_module_info

const struct ast_module_info* ast_module_info = &__mod_info
static

Definition at line 143 of file func_iconv.c.

◆ iconv_function

struct ast_custom_function iconv_function
static
Initial value:
= {
.name = "ICONV",
.read = iconv_read
}
static int iconv_read(struct ast_channel *chan, const char *cmd, char *arguments, char *buf, size_t len)
Definition: func_iconv.c:76

Definition at line 128 of file func_iconv.c.