Magisk/hacks.c

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C
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#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "su.h"
#include "utils.h"
enum {
H_NO_CONTEXT = 0x0001,
};
static struct {
const char *package;
int flags;
int uid;
} apps_list[] = {
{ "com.keramidas.TitaniumBackup", H_NO_CONTEXT, },
};
void hacks_init() {
char oldCwd[512];
int i;
getcwd(oldCwd, sizeof(oldCwd));
chdir("/data/data");
for(i=0; i<(sizeof(apps_list)/sizeof(apps_list[0])); ++i) {
apps_list[i].uid = -1;
struct stat st_buf;
int ret = stat(apps_list[i].package, &st_buf);
LOGW("hacks: Testing (%s:%d:%d)", apps_list[i].package, ret, st_buf.st_uid);
if(ret)
continue;
apps_list[i].uid = st_buf.st_uid;
}
}
void hacks_update_context(struct su_context* ctxt) {
int i;
for(i=0; i<(sizeof(apps_list)/sizeof(apps_list[0])); ++i) {
LOGW("hacks: Testing (%s:%d), %d", apps_list[i].package, ctxt->from.uid);
if(apps_list[i].uid != ctxt->from.uid)
continue;
LOGW("hacks: Found app (%s:%d)", apps_list[i].package, ctxt->from.uid);
if(apps_list[i].flags & H_NO_CONTEXT) {
LOGW("hacks: Disabling context (%s:%d)", apps_list[i].package, ctxt->from.uid);
ctxt->to.context = NULL;
}
}
}