From 89784435d0ca05bdf230407584ccb8e6dec40c15 Mon Sep 17 00:00:00 2001
From: Antoine Jacquet <royale@zerezo.com>
Date: Sun, 15 Jan 2023 12:25:18 +0100
Subject: [PATCH] version 0.44 (by Andreas Neuper)

* add UTF-16 support
---
 ChangeLog    |  3 +++
 configure    |  2 +-
 configure.in |  2 +-
 fapg.c       | 32 +++++++++++++++++++++++++++-----
 4 files changed, 32 insertions(+), 7 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 1380eb3..42f47a2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 Change log file for FAPG
 
+version 0.44	(2023-01-15) (by Andreas Neuper)
+	* add UTF-16 support
+
 version 0.43	(2020-03-27) (by François Revol)
 	* parse ID3v2.3 TLEN as a fallback for duration detection
 	* don't skip printing EXTINF for unknown durations
diff --git a/configure b/configure
index 8b85125..f1b5912 100755
--- a/configure
+++ b/configure
@@ -2060,7 +2060,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE=fapg
- VERSION=0.43
+ VERSION=0.44
 
 
 cat >>confdefs.h <<_ACEOF
diff --git a/configure.in b/configure.in
index 647de5a..09bd51a 100644
--- a/configure.in
+++ b/configure.in
@@ -1,7 +1,7 @@
 # Process this file with autoconf to produce a configure script.
 AC_PREREQ(2.61)
 AC_INIT(fapg.c)
-AM_INIT_AUTOMAKE(fapg, 0.43)
+AM_INIT_AUTOMAKE(fapg, 0.44)
 
 AC_PROG_INSTALL
 AC_PROG_CC
diff --git a/fapg.c b/fapg.c
index bd2b3f0..e9d2b4d 100644
--- a/fapg.c
+++ b/fapg.c
@@ -44,8 +44,9 @@
 #define MP3_BASE 1024
 #define OGG_BASE 1024*10
 #define MAX 1024*250            /* 250ko for ID3 with JPEG images in it */
+#define MAX_ITEM 1024
 
-#define FORMAT_M3U 0
+#define FORMAT_M3U 0  /* "0" is not a good choice for debugging, but OK for a default */
 #define FORMAT_PLS 1
 #define FORMAT_HTML 2
 #define FORMAT_RSS 3
@@ -74,9 +75,9 @@ unsigned char buffer[MAX];
 
 int counter = 0;
 
-unsigned char artist[1024];
-unsigned char title[1024];
-unsigned char genrebuf[1024];
+unsigned char artist[MAX_ITEM];
+unsigned char title[MAX_ITEM];
+unsigned char genrebuf[MAX_ITEM];
 unsigned char genre = 0;
 int duration;
 #define MP2ENC 1
@@ -259,6 +260,23 @@ void mywebputstr(const char *c)
     }
 }
 
+void utf16toutf8(char *c,int n)
+{
+    /* check whether the we need to convert UTF-16 to UTF-8 strings */
+    if ( ( c[0] != '\377' ) || ( c[1] != '\376' ) ) { return; }
+    /* only continue here, if the first 2 letters are 0xfffe *
+     * c references an UTF-16 input, where latin letters are *
+     * separated by zero bytes, which we need to eliminate   */
+    int i=0; --n;
+    for(int j=2; (j<n) && (j<MAX_ITEM); j++ ) {
+      if( isprint(c[j]) ) { /* this is not perfect ! */
+            c[i++]=c[j];
+    }   }   c[i+1]=c[i]='\0';
+    /* the index i follows the zero-terminated "string" *
+     * now the read buffer is modified, not the file    */
+    return;
+}
+
 void myplaputstr(const char *c)
 {
     while(*c != 0) {
@@ -692,7 +710,7 @@ void parse_mp3(unsigned char *file)
         fprintf(stderr, "Debug >> parsing mp3 : %s\n", file);
 
     /* read header */
-    if((fic = fopen(file, "r")) == NULL) {
+    if((fic = fopen(file, "rb")) == NULL) {
         fprintf(stderr, "Warning >> can't open file : %s\n", file);
         return;
     }
@@ -732,10 +750,12 @@ void parse_mp3(unsigned char *file)
                 if(*c == 0)
                     break;
                 if(strncmp(c, "TT2", 3) == 0) {
+                    utf16toutf8(c+7,size);
                     strncpy(title, c + 7, size - 1);
                     title[size - 1] = '\0';
                 }
                 if(strncmp(c, "TP1", 3) == 0) {
+                    utf16toutf8(c+7,size);
                     strncpy(artist, c + 7, size - 1);
                     artist[size - 1] = '\0';
                 }
@@ -755,10 +775,12 @@ void parse_mp3(unsigned char *file)
                 if(*c == 0)
                     break;
                 if(strncmp(c, "TIT2", 4) == 0) {
+                    utf16toutf8(c+11,size);
                     strncpy(title, c + 11, size - 1);
                     title[size - 1] = '\0';
                 }
                 if(strncmp(c, "TPE1", 4) == 0) {
+                    utf16toutf8(c+11,size);
                     strncpy(artist, c + 11, size - 1);
                     artist[size - 1] = '\0';
                 }
-- 
2.20.1