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#include <dirent.h>
#include <strings.h>
#include <Sources.h>
#include <sys/stat.h>
#include <sys/sysctl.h>
#include <sys/types.h>
#include <Menes/ObjectHandle.h>
void Finish(const char *finish) {
if (finish == NULL)
return;
const char *cydia(getenv("CYDIA"));
if (cydia == NULL)
return;
int fd([[[[NSString stringWithUTF8String:cydia] componentsSeparatedByString:@" "] objectAtIndex:0] intValue]);
FILE *fout(fdopen(fd, "w"));
fprintf(fout, "finish:%s\n", finish);
fclose(fout);
}
static bool FixProtections() {
for (const char *path : (const char *[]) {"/var/lib", "/var/cache", "/var/stash"}) {
mkdir(path, 0755);
if (system([[NSString stringWithFormat:@"/usr/libexec/cydia/setnsfpn %s", path] UTF8String]) != 0) {
fprintf(stderr, "failed to setnsfpn %s\n", path);
return false;
}
}
return true;
}
static void FixPermissions() {
DIR *stash(opendir("/var/stash"));
if (stash == NULL)
return;
while (dirent *entry = readdir(stash)) {
const char *folder(entry->d_name);
if (strlen(folder) != 8)
continue;
if (strncmp(folder, "_.", 2) != 0)
continue;
char path[1024];
sprintf(path, "/var/stash/%s", folder);
struct stat stat;
if (lstat(path, &stat) == -1)
continue;
if (!S_ISDIR(stat.st_mode))
continue;
chmod(path, 0755);
}
closedir(stash);
}
#define APPLICATIONS "/Applications"
static bool FixApplications() {
char target[1024];
ssize_t length(readlink(APPLICATIONS, target, sizeof(target)));
if (length == -1)
return false;
if (length >= sizeof(target)) // >= "just in case" (I'm nervous)
return false;
target[length] = '\0';
if (strlen(target) != 30)
return false;
if (memcmp(target, "/var/stash/Applications.", 24) != 0)
return false;
if (strchr(target + 24, '/') != NULL)
return false;
struct stat stat;
if (lstat(target, &stat) == -1)
return false;
if (!S_ISDIR(stat.st_mode))
return false;
char temp[] = "/var/stash/_.XXXXXX";
if (mkdtemp(temp) == NULL)
return false;
if (false) undo: {
unlink(temp);
return false;
}
if (chmod(temp, 0755) == -1)
goto undo;
char destiny[strlen(temp) + 32];
sprintf(destiny, "%s%s", temp, APPLICATIONS);
if (unlink(APPLICATIONS) == -1)
goto undo;
if (rename(target, destiny) == -1) {
if (symlink(target, APPLICATIONS) == -1)
fprintf(stderr, "/Applications damaged -- DO NOT REBOOT\n");
goto undo;
} else {
bool success;
if (symlink(destiny, APPLICATIONS) != -1)
success = true;
else {
fprintf(stderr, "/var/stash/Applications damaged -- DO NOT REBOOT\n");
success = false;
}
// unneccessary, but feels better (I'm nervous)
symlink(destiny, target);
[@APPLICATIONS writeToFile:[NSString stringWithFormat:@"%s.lnk", temp] atomically:YES encoding:NSNonLossyASCIIStringEncoding error:NULL];
return success;
}
}
_H<NSMutableDictionary> Sources_;
bool Changed_;
_H<NSString> System_;
int main(int argc, const char *argv[]) {
if (argc < 2 || strcmp(argv[1], "configure") != 0)
return 0;
NSAutoreleasePool *pool([[NSAutoreleasePool alloc] init]);
if (kCFCoreFoundationVersionNumber >= 1000)
if (!FixProtections())
return 1;
size_t size;
sysctlbyname("kern.osversion", NULL, &size, NULL, 0);
char *osversion = new char[size];
if (sysctlbyname("kern.osversion", osversion, &size, NULL, 0) != -1)
System_ = [NSString stringWithUTF8String:osversion];
NSDictionary *metadata([[[NSMutableDictionary alloc] initWithContentsOfFile:@"/var/lib/cydia/metadata.plist"] autorelease]);
NSUInteger version(0);
if (metadata != nil) {
Sources_ = [metadata objectForKey:@"Sources"];
if (NSNumber *number = [metadata objectForKey:@"Version"])
version = [number unsignedIntValue];
}
if (Sources_ == nil)
Sources_ = [NSMutableDictionary dictionaryWithCapacity:8];
if (version == 0) {
CydiaAddSource(@"http://apt.thebigboss.org/repofiles/cydia/", @"stable", [NSMutableArray arrayWithObject:@"main"]);
CydiaAddSource(@"http://apt.modmyi.com/", @"stable", [NSMutableArray arrayWithObject:@"main"]);
CydiaAddSource(@"http://cydia.zodttd.com/repo/cydia/", @"stable", [NSMutableArray arrayWithObject:@"main"]);
CydiaAddSource(@"http://repo666.ultrasn0w.com/", @"./");
}
CydiaWriteSources();
#define OldCache_ "/var/root/Library/Caches/com.saurik.Cydia"
if (access(OldCache_, F_OK) == 0)
system("rm -rf " OldCache_);
#define NewCache_ "/var/mobile/Library/Caches/com.saurik.Cydia"
system("cd /; su -c 'mkdir -p " NewCache_ "' mobile");
if (access(NewCache_ "/lists", F_OK) != 0 && errno == ENOENT) {
system("cp -at " NewCache_ " /var/lib/apt/lists");
system("chown -R 501.501 " NewCache_ "/lists");
}
if (access(NewCache_ "/metadata.cb0", F_OK) != 0 && errno == ENOENT)
if (access("/var/lib/cydia/metadata.cb0", F_OK) == 0) {
system("mv /var/lib/cydia/metadata.cb0 " NewCache_);
chown(NewCache_ "/metadata.cb0", 501, 501);
}
FixPermissions();
if (FixApplications())
Finish("restart");
[pool release];
return 0;
}
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