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Allow running scripts with incomplete env

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This commit is contained in:
topjohnwu 2023-11-10 00:55:05 -08:00
parent cfb20b0f86
commit 49f241b77c
1 changed files with 10 additions and 6 deletions
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12
native/src/core/scripting.cpp
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@ -13,9 +13,10 @@ using namespace std;
static const char *bbpath() {
static string path;
if (path.empty()) {
path = get_magisk_tmp();
path += "/" BBPATH "/busybox";
if (access(path.data(), X_OK) != 0) {
path = DATABIN "/busybox";
}
return path.data();
}
@ -210,7 +211,7 @@ static void abort(FILE *fp, const char *fmt, ...) {
}
constexpr char install_module_script[] = R"EOF(
exec $(magisk --path)/.magisk/busybox/busybox sh -c '
exec %s sh -c '
. /data/adb/magisk/util_functions.sh
install_module
exit 0'
@ -220,7 +221,7 @@ void install_module(const char *file) {
if (getuid() != 0)
abort(stderr, "Run this command with root");
if (access(DATABIN, F_OK) ||
access(DATABIN "/busybox", X_OK) ||
access(bbpath(), X_OK) ||
access(DATABIN "/util_functions.sh", F_OK))
abort(stderr, "Incomplete Magisk install");
if (access(file, F_OK))
@ -236,7 +237,10 @@ void install_module(const char *file) {
xdup2(fd, STDERR_FILENO);
close(fd);
const char *argv[] = { "/system/bin/sh", "-c", install_module_script, nullptr };
char cmds[256];
ssprintf(cmds, sizeof(cmds), install_module_script, bbpath());
const char *argv[] = { "/system/bin/sh", "-c", cmds, nullptr };
execve(argv[0], (char **) argv, environ);
abort(stdout, "Failed to execute BusyBox shell");
}