Added custom function VANITYNUMBER to convert letters into digits.

README

@@ -287,4 +287,14 @@ CALLINGSUBADDRESS
 
 CALLEDSUBADDRESS
     If set on dial(), the called subaddress will be set to the content.
-   
+  
+
+Functions (available with newer Asterisk only)
+==============================================
+
+VANITYNUMBER(<vanitynumber>)
+    Converts the 'vanitynumber' into a digit-only string. International keypad is
+    used, e.g. ABC=1, DEF=2, ...
+
+
+

chan_capi.c

@@ -38,6 +38,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
+#include <ctype.h>
 #include <errno.h>
 #include <unistd.h>
 #include <fcntl.h>
@@ -4301,7 +4302,7 @@ static int cc_init_capi(void)
 
 	if (capi20_isinstalled() != 0) {
 		ast_log(LOG_WARNING, "CAPI not installed, CAPI disabled!\n");
-		return 0;
+		return -1;
 	}
 
 	if (capi20_register(AST_CAPI_BCHANS, AST_CAPI_MAX_B3_BLOCKS,
@@ -4629,6 +4630,66 @@ static int capi_eval_config(struct ast_config *cfg)
 	return 0;
 }
 
+#ifdef CC_AST_CUSTOM_FUNCTION
+/*
+ * convert letters into digits according to international keypad
+ */
+static char *vanitynumber(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len)
+{
+	int pos;
+	unsigned char c;
+	
+	*buf = 0;
+
+	if (!data) {
+		ast_log(LOG_WARNING, "This function requires a parameter name.\n");
+		return NULL;
+	}
+
+	for (pos = 0; (pos < strlen(data)) && (pos < len); pos++) {
+		c = toupper(data[pos]);
+		switch(c) {
+		case 'A': case 'B': case 'C':
+			buf[pos] = '2';
+			break;
+		case 'D': case 'E': case 'F':
+			buf[pos] = '3';
+			break;
+		case 'G': case 'H': case 'I':
+			buf[pos] = '4';
+			break;
+		case 'J': case 'K': case 'L':
+			buf[pos] = '5';
+			break;
+		case 'M': case 'N': case 'O':
+			buf[pos] = '6';
+			break;
+		case 'P': case 'Q': case 'R': case 'S':
+			buf[pos] = '7';
+			break;
+		case 'T': case 'U': case 'V':
+			buf[pos] = '8';
+			break;
+		case 'W': case 'X': case 'Y': case 'Z':
+			buf[pos] = '9';
+			break;
+		default:
+			buf[pos] = data[pos];
+		}
+	}
+	buf[pos] = 0;
+	
+	return buf;
+}
+
+static struct ast_custom_function vanitynumber_function = {
+	.name = "VANITYNUMBER",
+	.synopsis = "Vanity number: convert letter into digits according to international dialpad.",
+	.syntax = "VANITYNUMBER(<vanitynumber to convert>)",
+	.read = vanitynumber,
+};
+#endif
+
 /*
  * main: load the module
  */
@@ -4682,6 +4743,10 @@ int load_module(void)
 	
 	ast_register_application(commandapp, capicommand_exec, commandsynopsis, commandtdesc);
 
+#ifdef CC_AST_CUSTOM_FUNCTION
+	ast_custom_function_register(&vanitynumber_function);
+#endif
+
 	if (ast_pthread_create(&monitor_thread, NULL, do_monitor, NULL) < 0) {
 		monitor_thread = (pthread_t)(0-1);
 		ast_log(LOG_ERROR, "Unable to start monitor thread!\n");
@@ -4699,6 +4764,10 @@ int unload_module()
 	struct ast_capi_pvt *i, *itmp;
 	int controller;
 
+#ifdef CC_AST_CUSTOM_FUNCTION
+	ast_custom_function_unregister(&vanitynumber_function);
+#endif
+
 	ast_unregister_application(commandapp);
 
 	ast_cli_unregister(&cli_info);

create_config.sh

@@ -106,6 +106,14 @@ else
 	echo " * no 'AST_CONTROL_HOLD'"
 fi
 
+if grep -q "struct ast_custom_function" $INCLUDEDIR/pbx.h; then
+	echo "#define CC_AST_CUSTOM_FUNCTION" >>$CONFIGFILE
+	echo " * found 'struct ast_custom_function'"
+else
+	echo "#undef CC_AST_CUSTOM_FUNCTION" >>$CONFIGFILE
+	echo " * no 'struct ast_custom_function'"
+fi
+
 echo "" >>$CONFIGFILE
 echo "#endif /* CHAN_CAPI_CONFIG_H */" >>$CONFIGFILE
 echo "" >>$CONFIGFILE