sushen339
64 lines
1.3 KiB
C
64 lines
1.3 KiB
C
#include "log.h"
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#include <stdarg.h>
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#include <fcntl.h>
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#include <sys/file.h>
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int log_init(void) {
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FILE *fp = fopen(LOG_FILE, "a");
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if (!fp) {
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return ERROR_FILE;
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}
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chmod(LOG_FILE, 0666);
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fclose(fp);
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return SUCCESS;
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}
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void log_rotate(void) {
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struct stat st;
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if (stat(LOG_FILE, &st) != 0) {
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return;
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}
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if (st.st_size >= MAX_LOG_SIZE) {
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char backup_file[MAX_PATH_LEN];
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snprintf(backup_file, sizeof(backup_file), "%s.1", LOG_FILE);
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remove(backup_file);
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rename(LOG_FILE, backup_file);
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FILE *fp = fopen(LOG_FILE, "w");
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if (fp) {
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chmod(LOG_FILE, 0666);
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fclose(fp);
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}
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}
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}
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void log_write(const char *format, ...) {
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log_rotate();
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FILE *fp = fopen(LOG_FILE, "a");
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if (!fp) {
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return;
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}
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char timestamp[64];
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get_timestamp(timestamp, sizeof(timestamp));
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fprintf(fp, "[%s] ", timestamp);
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va_list args;
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va_start(args, format);
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vfprintf(fp, format, args);
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va_end(args);
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fprintf(fp, "\n");
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fclose(fp);
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}
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void log_show_recent(int lines) {
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char command[MAX_COMMAND_LEN];
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snprintf(command, sizeof(command), "tail -n %d %s 2>/dev/null", lines, LOG_FILE);
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system(command);
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}
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