0.1

.gitignore

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+*.bz2
+*.deb
+myTunes

make.sh

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+#!/bin/sh
+
+TOOLCHAIN="/var/toolchain/sys30"
+BINARY="myTunes/usr/libexec/myTunes"
+
+gcc -I"$TOOLCHAIN/usr/include" -L"$TOOLCHAIN/usr/lib" -lsqlite3 -O3 -o $BINARY myTunes.c
+strip $BINARY
+ldid -S $BINARY
+
+dpkg-deb -b myTunes

myTunes.c

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+/*
+gcc -I/var/toolchain/sys30/usr/include -L/var/toolchain/sys30/usr/lib -lsqlite3 -O3 -o myTunes myTunes.c; strip myTunes; ldid -S myTunes
+*/
+
+#include <err.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <sqlite3.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/event.h>
+#include <sys/stat.h>
+
+#define MEDIA	"/private/var/mobile/Media"
+#define LIBFILE	MEDIA "/iTunes_Control/iTunes/iTunes Library.itlp/Library.itdb"
+#define LOCFILE	MEDIA "/iTunes_Control/iTunes/iTunes Library.itlp/Locations.itdb"
+#define ITFILES	MEDIA "/iTunes_Control/Music"
+#define MYTUNES	MEDIA "/myTunes"
+
+int kq, pid;
+
+int wait(char *file) {
+	int fd;
+
+	do {
+		usleep(100000);
+		fd = open(file, O_RDONLY);
+	} while (fd == -1);
+
+	return fd;
+}
+
+int mon(int fd) {
+	struct kevent ke;
+	int i = fd;
+
+	if (i != -1)
+		close(i);
+
+	fd = wait(LIBFILE);
+
+	/*
+	if (i != -1)
+		kill(pid, SIGUSR1);
+	*/
+	kill(pid, SIGUSR1);
+
+	EV_SET(&ke, fd, EVFILT_VNODE, EV_ADD, NOTE_DELETE | NOTE_WRITE | NOTE_EXTEND | NOTE_ATTRIB | NOTE_LINK | NOTE_RENAME | NOTE_REVOKE, 0, NULL);
+	if (kevent(kq, &ke, 1, NULL, 0, NULL) == -1)
+		err(1, "kevent2");
+
+	return fd;
+}
+
+void postpone(int sig) {
+	alarm(5);
+}
+
+static int callback(void *empty, int argc, char **argv, char **col) {
+	char *p;
+	char title[256];
+	unsigned int i;
+	struct stat fs;
+
+	if (stat(argv[0], &fs) == -1)
+		return 0;
+
+	memset(title, '\0', sizeof(title));
+	for (i = 0, p = argv[1]; (i < sizeof(title) - 1) && (*p != '\0'); i++, p++)
+		switch (*p) {
+			case ':':
+			case '*':
+			case '?':
+				title[i] = '_';
+				break;
+			default:
+				title[i] = *p;
+		}
+
+	//printf("%s\t%s\n", argv[0], title);
+	link(argv[0], title);
+	return 0;
+}
+
+int query(sqlite3 *db, char *sql, void *cb) {
+	int i;
+	char *err;
+
+	for (i = 0; i < 5; i++)
+		if (sqlite3_exec(db, sql, cb, 0, &err) == SQLITE_OK)
+			return 1;
+		else {
+			warn("sqlite3_exec %s", err);
+			sqlite3_free(err);
+			usleep(100000);
+		}
+
+	return 0;
+}
+
+void clean() {
+	DIR *pd;
+	struct dirent *pde;
+
+	pd = opendir(MYTUNES);
+	if (pd == NULL)
+		return;
+
+	for (pde = readdir(pd); pde != NULL; pde = readdir(pd))
+		if (pde->d_type == DT_REG)
+			unlink(pde->d_name);
+
+	closedir(pd);
+}
+
+void fix(int sig) {
+	int ok;
+	sqlite3 *db;
+
+	alarm(0);
+
+	signal(SIGUSR1, SIG_IGN);
+	signal(SIGALRM, SIG_IGN);
+
+	close(wait(LOCFILE));
+	close(wait(LIBFILE));
+
+	mkdir(MYTUNES, S_IRWXU | S_IRWXG | S_IRWXO);
+	chdir(MYTUNES);
+	clean();
+
+	if (sqlite3_open(LIBFILE, &db))
+		warn("sqlite3_open %s", sqlite3_errmsg(db));
+	else if (
+		query(db, "ATTACH '" LOCFILE "' AS loc", NULL) &&
+		query(db, "SELECT '" ITFILES "/' || location, title || SUBSTR(location, 9) FROM item LEFT JOIN loc.location ON (pid = item_pid) ORDER BY location ASC", callback) &&
+		query(db, "DETACH DATABASE loc", NULL)
+	)
+		ok = 1;
+
+	sqlite3_close(db);
+
+	signal(SIGUSR1, postpone);
+	signal(SIGALRM, fix);
+}
+
+int main() {	
+	int fd, null;
+	struct kevent ke;
+
+	if ((null = open("/dev/null", O_RDWR)) == -1)
+		err(1, "null");
+
+	switch (fork()) {
+		case -1:
+			err(1, "fork1");
+		case  0:
+			setsid();
+			switch (fork()) {
+				case -1:
+					err(1, "fork2");
+				case  0:
+					// chdir("/");
+					umask(0);
+
+					// close standart IO
+					close(0);
+					close(1);
+					close(2);
+
+					// open'em as /dev/null
+					dup2(null, 0);
+					dup2(null, 1);
+					dup2(null, 2);
+
+					break;
+				default:
+					return 0;
+			}
+			break;
+		default:
+			return 0;
+	}
+
+	pid = fork();
+	if (pid == -1)
+		err(1, "fork3");
+	else if (pid == 0) {
+		signal(SIGUSR1, postpone);
+		signal(SIGALRM, fix);
+
+		while (1)
+			pause();
+	} else {
+		kq = kqueue();
+		if (kq == -1)
+			err(1, "kqueue");
+
+		for (fd = mon(-1); 1; fd = mon(fd)) {
+			memset(&ke, '\0', sizeof(ke));
+
+			if (kevent(kq, NULL, 0, &ke, 1, NULL) == -1)
+				err(1, "kevent1");
+		}
+	}
+}

myTunes.sh

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+#!/bin/sh
+MEDIA="/private/var/mobile/Media"
+LIBFILE="$MEDIA/iTunes_Control/iTunes/iTunes Library.itlp/Library.itdb"
+LOCFILE="$MEDIA/iTunes_Control/iTunes/iTunes Library.itlp/Locations.itdb"
+ITFILES="$MEDIA/iTunes_Control/Music"
+MYTUNES="$MEDIA/myTunes"
+
+rm -Rf "$MYTUNES"
+mkdir -p "$MYTUNES"
+cd "$MYTUNES"
+
+(
+sqlite3 -list "$LIBFILE" << SQLITE_END | tr ':?*' '___'
+	ATTACH '$LOCFILE' AS loc;
+	SELECT '$ITFILES/' || location, title || SUBSTR(location, 9) FROM item LEFT JOIN loc.location ON (pid = item_pid) ORDER BY location ASC;
+	DETACH DATABASE loc;
+SQLITE_END
+) | while read line
+do
+	file=$(echo $line | cut -d '|' -f1)
+	name=$(echo $line | cut -d '|' -f2)
+	$(ln "$file" "$name")
+done

myTunes/DEBIAN/control

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+Package: net.iWatcher.myTunes
+Name: myTunes
+Version: 0.1
+Architecture: iphoneos-arm
+Homepage: http://iwatcher.net/
+Author: Stanislaw Pusep <creaktive@gmail.com>
+Maintainer: Stanislaw Pusep <creaktive@gmail.com>
+Section: System
+Description: Gives you back the access to the media files stored on your device through the 'Media/myTunes' folder accessible via SCP, iPhoneBrowser or iFile internal server.
+	After installation, browse '/private/var/mobile/Media/myTunes' for you tracks.
+	Please note that the purpose of this application is backup; changes made through iTunes will be reflected, however uploading a track into 'myTunes' folder won't
+	make it accessible through iPod app (neither deleting will remove it from the playlist)!

myTunes/DEBIAN/postrm

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+#!/bin/bash
+
+declare -a cydia
+cydia=($CYDIA)
+
+if [[ $1 == remove ]]; then
+  rm -Rf "/private/var/mobile/Media/myTunes"
+else
+  echo "postrm - skip restore files"
+fi
+#end script