Hi guys,
I'm a student doing a project where I have to interrupt the init process of
Android. As we all know, init is the program that is run after the kernel boots
up.
In the source code of init.c, I made the following changes to main():
int main(int argc, char **argv)
{
int fd_count = 0;
struct pollfd ufds[4];
char *tmpdev;
...
// START OF MY EDIT IN PSEUDOCODE
fputs("Press enter to start test tool\n", stdout);
if (user input received)
{
execve("./system/bin/test_tool", NULL, NULL);
}
// END OF MY EDIT
// rest of init.c
...
}
Upon first boot up, I adb push test_tool (which is a properly compiled ARM
executable for Linux) to system/bin/ and chmod it to 777, then do a reboot.
As far as I know, execve should never return if executed successfully. However,
I'm still seeing the rest of the init process being executed, which should mean
that execve is not working?
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