forked from MarcoBuster/Magisk
56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
/* log_monitor.c - New thread to monitor logcat
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*
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* Open a new thread to call logcat and get logs with tag "Magisk"
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* Also, write the logs to a log file for debugging purpose
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*
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*/
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#include <stdio.h>
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#include <limits.h>
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#include <pthread.h>
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#include <unistd.h>
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#include <sys/wait.h>
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#include "magisk.h"
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#include "utils.h"
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#include "daemon.h"
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static void *logger_thread(void *args) {
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// Setup error handler
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err_handler = exit_thread;
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char *buffer = xmalloc(PATH_MAX);
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rename(LOGFILE, LASTLOG);
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FILE *logfile = xfdopen(xopen(LOGFILE, O_WRONLY | O_CREAT | O_CLOEXEC | O_TRUNC, 0644), "w");
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// Disable buffering
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setbuf(logfile, NULL);
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int fd, log_pid;
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while (1) {
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// Start logcat
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char *const command[] = { "logcat", "-s", "Magisk", "-v", "time", NULL };
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log_pid = run_command(&fd, "/system/bin/logcat", command);
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while (fdgets(buffer, PATH_MAX, fd)) {
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fprintf(logfile, "%s", buffer);
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}
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// For some reason it went here, clear buffer and restart
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close(fd);
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kill(log_pid, SIGTERM);
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waitpid(log_pid, NULL, 0);
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system("logcat -c");
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}
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// Should never be here, but well...
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fclose(logfile);
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free(buffer);
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return NULL;
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}
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/* Start a new thread to monitor logcat and dump to logfile */
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void monitor_logs() {
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pthread_t log_monitor_thread;
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xpthread_create(&log_monitor_thread, NULL, logger_thread, NULL);
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pthread_detach(log_monitor_thread);
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}
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