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Add common script support

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topjohnwu
2017-04-22 06:33:40 +08:00
parent e00e6509ee
commit 9bc8f6e9d7
9 changed files with 89 additions and 18 deletions
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60
jni/utils/misc.c
View File

@@ -12,6 +12,7 @@
#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <sys/wait.h>
#include "magisk.h"
#include "utils.h"
@@ -117,7 +118,8 @@ void ps(void (*func)(int)) {
DIR *dir;
struct dirent *entry;
dir = xopendir("/proc");
if (!(dir = xopendir("/proc")))
return;
while ((entry = xreaddir(dir))) {
if (entry->d_type == DT_DIR) {
@@ -216,22 +218,60 @@ void setup_sighandlers(void (*handler)(int)) {
int run_command(int *fd, const char *path, char *const argv[]) {
int sv[2];
if (socketpair(AF_LOCAL, SOCK_STREAM, 0, sv) == -1)
return -1;
// We use sv[0], give them sv[1] for communication
*fd = sv[1];
if (fd) {
if (socketpair(AF_LOCAL, SOCK_STREAM, 0, sv) == -1)
return -1;
// We use sv[0], give them sv[1] for communication
*fd = sv[1];
}
int pid = fork();
if (pid != 0) {
close(sv[0]);
if (fd) close(sv[0]);
return pid;
}
close(sv[1]);
dup2(sv[0], STDIN_FILENO);
dup2(sv[0], STDOUT_FILENO);
dup2(sv[0], STDERR_FILENO);
if (fd) {
close(sv[1]);
xdup2(sv[0], STDIN_FILENO);
xdup2(sv[0], STDOUT_FILENO);
xdup2(sv[0], STDERR_FILENO);
} else {
int null = open("/dev/null", O_RDWR);
xdup2(null, STDIN_FILENO);
xdup2(null, STDOUT_FILENO);
xdup2(null, STDERR_FILENO);
}
execv(path, argv);
PLOGE("execv");
return -1;
}
#define MAGISK_CORE "/magisk/.core/"
void exec_common_script(const char* stage) {
DIR *dir;
struct dirent *entry;
char buf[PATH_MAX];
snprintf(buf, sizeof(buf), MAGISK_CORE "%s.d", stage);
if (!(dir = opendir(buf)))
return;
while ((entry = xreaddir(dir))) {
if (entry->d_type == DT_REG) {
snprintf(buf, sizeof(buf), MAGISK_CORE "%s.d/%s", stage, entry->d_name);
if (access(buf, X_OK) == -1)
continue;
LOGI("%s.d: exec [%s]\n", stage, entry->d_name);
char *const command[] = { "sh", buf, NULL };
int pid = run_command(NULL, "/system/bin/sh", command);
if (pid != -1)
waitpid(pid, NULL, 0);
}
}
closedir(dir);
}

1
jni/utils/utils.h
View File

@@ -74,5 +74,6 @@ void unlock_blocks();
void unblock_boot_process();
void setup_sighandlers(void (*handler)(int));
int run_command(int *fd, const char *path, char *const argv[]);
void exec_common_script(const char* stage);
#endif