# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1718243719 0
# Node ID c8cb05b69118d6cf32a8949ec5b920010d1dd129
# Parent  2a19b44c272ee86c3adbf21016b51fb7005be468
libcoding alpha addr: support both encoding and decoding

diff -r 2a19b44c272e -r c8cb05b69118 libcoding/Makefile
--- a/libcoding/Makefile	Tue May 21 01:59:17 2024 +0000
+++ b/libcoding/Makefile	Thu Jun 13 01:55:19 2024 +0000
@@ -1,6 +1,6 @@
-OBJS=	alpha_addr.o check_high_bit.o gsm7_encode.o gsm7_encode2.o \
-	gsm7_encode_table.o gsm7_pack.o hexdigits.o hexout.o number_encode.o \
-	timestamp.o ucs2_bigend.o utf8_decode.o utf8_decode2.o
+OBJS=	alpha_addr.o alpha_addr_enc.o check_high_bit.o gsm7_encode.o \
+	gsm7_encode2.o gsm7_encode_table.o gsm7_pack.o hexdigits.o hexout.o \
+	number_encode.o timestamp.o ucs2_bigend.o utf8_decode.o utf8_decode2.o
 LIB=	libcoding.a
 
 include ../config.defs
diff -r 2a19b44c272e -r c8cb05b69118 libcoding/alpha_addr.c
--- a/libcoding/alpha_addr.c	Tue May 21 01:59:17 2024 +0000
+++ b/libcoding/alpha_addr.c	Thu Jun 13 01:55:19 2024 +0000
@@ -1,24 +1,21 @@
 /*
- * This library module implements encoding of alphanumeric From addresses
- * that are allowed in SMS-DELIVER TPDUs.
+ * This library module contains some bits that help working with
+ * alphabetic addresses.
  */
 
 #include <sys/types.h>
 
 u_char alpha_septets_to_digits[12] = {0, 2, 4, 6, 7, 9, 11, 13, 14, 16, 18, 20};
 
-encode_alpha_addr(arg, bin)
-	char *arg;
-	u_char *bin;
+alpha_addr_valid(ndigits, sepp)
+	unsigned ndigits, *sepp;
 {
-	u_char gsm7[11];
-	int rc;
+	unsigned n;
 
-	rc = qstring_arg_to_gsm7(arg, gsm7, 11);
-	if (rc < 0)
-		return(rc);
-	bin[0] = alpha_septets_to_digits[rc];
-	bin[1] = 0x50;
-	gsm7_pack(gsm7, bin + 2, (bin[0] + 1) >> 1);
+	for (n = 1; n <= 11; n++)
+		if (alpha_septets_to_digits[n] == ndigits) {
+			*sepp = n;
+			return(1);
+		}
 	return(0);
 }
diff -r 2a19b44c272e -r c8cb05b69118 libcoding/alpha_addr_enc.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libcoding/alpha_addr_enc.c	Thu Jun 13 01:55:19 2024 +0000
@@ -0,0 +1,24 @@
+/*
+ * This library module implements encoding of alphanumeric From addresses
+ * that are allowed in SMS-DELIVER TPDUs.
+ */
+
+#include <sys/types.h>
+
+extern u_char alpha_septets_to_digits[12];
+
+encode_alpha_addr(arg, bin)
+	char *arg;
+	u_char *bin;
+{
+	u_char gsm7[11];
+	int rc;
+
+	rc = qstring_arg_to_gsm7(arg, gsm7, 11);
+	if (rc < 0)
+		return(rc);
+	bin[0] = alpha_septets_to_digits[rc];
+	bin[1] = 0x50;
+	gsm7_pack(gsm7, bin + 2, (bin[0] + 1) >> 1);
+	return(0);
+}