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/*
TWRP is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
TWRP is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with TWRP. If not, see <http://www.gnu.org/licenses/>.
*/
#define __STDC_FORMAT_MACROS 1
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include <inttypes.h>
// for setcap and getcap
#include <sys/capability.h>
#include <sys/xattr.h>
#include <linux/xattr.h>
#include "orscmd.h"
#include "../variables.h"
void print_version(void) {
printf("TWRP openrecoveryscript command line tool, TWRP version %s\n\n", TW_VERSION_STR);
}
void print_usage(void) {
print_version();
printf("Allows command line usage of TWRP via openrecoveryscript commands.\n");
printf("Some common commands include:\n");
printf(" install /path/to/update.zip\n");
printf(" backup <SDCRBAEM> [backupname]\n");
printf(" restore <SDCRBAEM> [backupname]\n");
printf(" wipe <partition name>\n");
printf(" sideload\n");
printf(" set <variable> [value]\n");
printf(" decrypt <password>\n");
printf(" remountrw\n");
printf("\nSee more documentation at https://twrp.me/faq/openrecoveryscript.html\n");
}
int do_setcap(const char* filename, const char* capabilities)
{
uint64_t caps;
if (sscanf(capabilities, "%" SCNi64, &caps) != 1)
{
printf("setcap: invalid capabilities \"%s\"\n", filename);
return 1;
}
struct vfs_cap_data cap_data;
memset(&cap_data, 0, sizeof(cap_data));
cap_data.magic_etc = VFS_CAP_REVISION | VFS_CAP_FLAGS_EFFECTIVE;
cap_data.data[0].permitted = (uint32_t) (caps & 0xffffffff);
cap_data.data[0].inheritable = 0;
cap_data.data[1].permitted = (uint32_t) (caps >> 32);
cap_data.data[1].inheritable = 0;
if (setxattr(filename, XATTR_NAME_CAPS, &cap_data, sizeof(cap_data), 0) < 0) {
printf("setcap of %s to %" PRIx64 " failed: %s\n",
filename, caps, strerror(errno));
return 1;
}
return 0;
}
int do_getcap(const char* filename)
{
struct vfs_cap_data cap_data;
memset(&cap_data, 0, sizeof(cap_data));
int rc = getxattr(filename, XATTR_NAME_CAPS, &cap_data, sizeof(vfs_cap_data));
if (rc > 0)
{
uint64_t caps = (uint64_t) cap_data.data[1].permitted << 32 | cap_data.data[0].permitted;
printf("0x%" PRIx64 "\n", caps);
}
else
printf("getcap of %s failed: %s\n", filename, strerror(errno));
return rc > 0;
}
int main(int argc, char **argv) {
int read_fd, write_fd, index;
char command[1024], result[512];
if (argc < 2 || strcmp(argv[1], "help") == 0 || strcmp(argv[1], "--help") == 0 || strcmp(argv[1], "?") == 0 || strcmp(argv[1], "-h") == 0) {
print_usage();
return 0;
}
if (strcmp(argv[1], "version") == 0 || strcmp(argv[1], "-v") == 0 || strcmp(argv[1], "--version") == 0) {
print_version();
return 0;
}
if (strcmp(argv[1], "setcap") == 0) {
if (argc != 4)
{
printf("Usage: setcap filename capabilities\n\n"
"capabilities must be specified as a number. Prefix with 0x for hexadecimal.\n");
return 1;
}
return do_setcap(argv[2], argv[3]);
}
if (strcmp(argv[1], "getcap") == 0) {
if (argc != 3)
{
printf("Usage: getcap filename\n");
return 1;
}
return do_getcap(argv[2]);
}
sprintf(command, "%s", argv[1]);
for (index = 2; index < argc; index++) {
sprintf(command, "%s %s", command, argv[index]);
}
write_fd = open(ORS_INPUT_FILE, O_WRONLY);
if (write_fd < 0) {
printf("TWRP does not appear to be running. Waiting for TWRP to start . . .\n");
printf("Press CTRL + C to quit.\n");
while (write_fd < 0)
write_fd = open(ORS_INPUT_FILE, O_WRONLY);
}
if (write(write_fd, command, sizeof(command)) != sizeof(command)) {
printf("Error sending command.\n");
close(write_fd);
return -1;
}
read_fd = open(ORS_OUTPUT_FILE, O_RDONLY);
if (read_fd < 0) {
printf("Unable to open %s for read.\n", ORS_OUTPUT_FILE);
return -1;
}
memset(&result, 0, sizeof(result));
while (read(read_fd, &result, sizeof(result)) > 0) {
result[510] = '\n';
result[511] = '\0';
printf("%s", result);
memset(&result, 0, sizeof(result));
}
close(write_fd);
close(read_fd);
return 0;
}
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