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00031 #include "asterisk.h"
00032
00033 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 153365 $")
00034
00035 #include <ctype.h>
00036 #include <iconv.h>
00037
00038 #include "asterisk/module.h"
00039 #include "asterisk/channel.h"
00040 #include "asterisk/pbx.h"
00041 #include "asterisk/utils.h"
00042 #include "asterisk/app.h"
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00075 #define AST_ICONV_CAST void *
00076
00077 static int iconv_read(struct ast_channel *chan, const char *cmd, char *arguments, char *buf, size_t len)
00078 {
00079 AST_DECLARE_APP_ARGS(args,
00080 AST_APP_ARG(in_charset);
00081 AST_APP_ARG(out_charset);
00082 AST_APP_ARG(text);
00083 );
00084 iconv_t cd;
00085 size_t incount, outcount = len;
00086 char *parse;
00087
00088 if (ast_strlen_zero(arguments)) {
00089 ast_log(LOG_WARNING, "Syntax: ICONV(<in-charset>,<out-charset>,<text>) - missing arguments!\n");
00090 return -1;
00091 }
00092
00093 parse = ast_strdupa(arguments);
00094 AST_STANDARD_APP_ARGS(args, parse);
00095
00096 if (args.argc < 3) {
00097 ast_log(LOG_WARNING, "Syntax: ICONV(<in-charset>,<out-charset>,<text>) %d\n", args.argc);
00098 return -1;
00099 }
00100
00101 incount = strlen(args.text);
00102
00103 ast_debug(1, "Iconv: \"%s\" %s -> %s\n", args.text, args.in_charset, args.out_charset);
00104
00105 cd = iconv_open(args.out_charset, args.in_charset);
00106
00107 if (cd == (iconv_t) -1) {
00108 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);
00109 return -1;
00110 }
00111
00112 if (iconv(cd, (AST_ICONV_CAST) &args.text, &incount, &buf, &outcount) == (size_t) -1) {
00113 if (errno == E2BIG)
00114 ast_log(LOG_WARNING, "Iconv: output buffer too small.\n");
00115 else if (errno == EILSEQ)
00116 ast_log(LOG_WARNING, "Iconv: illegal character.\n");
00117 else if (errno == EINVAL)
00118 ast_log(LOG_WARNING, "Iconv: incomplete character sequence.\n");
00119 else
00120 ast_log(LOG_WARNING, "Iconv: error %d: %s.\n", errno, strerror(errno));
00121 }
00122 iconv_close(cd);
00123
00124 return 0;
00125 }
00126
00127
00128 static struct ast_custom_function iconv_function = {
00129 .name = "ICONV",
00130 .read = iconv_read
00131 };
00132
00133 static int unload_module(void)
00134 {
00135 return ast_custom_function_unregister(&iconv_function);
00136 }
00137
00138 static int load_module(void)
00139 {
00140 return ast_custom_function_register(&iconv_function);
00141 }
00142
00143 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Charset conversions");
00144