Subversion Repositories Tewi

/* $Id: log.c 62 2024-09-18 20:02:26Z nishi $ */

#include "cm_log.h"

#include "cm_string.h"

#include <time.h>

#include <stdio.h>

#include <stdbool.h>

#include <string.h>

#include <stdlib.h>

#include <stdarg.h>

FILE* logfile;

bool cm_do_log = false;

#define LOGNAME_LENGTH 12

void cm_force_log(const char* log) {

	time_t t = time(NULL);

	struct tm* tm = localtime(&t);

	char date[513];

	strftime(date, 512, "%a %b %d %H:%M:%S %Z %Y", tm);

	fprintf(logfile, "[%s] %s\n", date, log);

	fflush(logfile);

}

void cm_log(const char* name, const char* log, ...) {

	if(!cm_do_log) return;

	va_list args;

	va_start(args, log);

	char namebuf[LOGNAME_LENGTH + 1];

	memset(namebuf, '.', LOGNAME_LENGTH);

	namebuf[LOGNAME_LENGTH] = 0;

	int i;

	for(i = 0; name[i] != 0 && i < LOGNAME_LENGTH; i++) {

		namebuf[i] = name[i];

	}

	char* result = malloc(1);

	result[0] = 0;

	char cbuf[2];

	cbuf[1] = 0;

	for(i = 0; log[i] != 0; i++) {

		if(log[i] == '%') {

			i++;

			if(log[i] == 's') {

				char* tmp = result;

				char* c = va_arg(args, char*);

				result = cm_strcat(tmp, c == NULL ? "(null)" : c);

				free(tmp);

			} else if(log[i] == 'd') {

				int a = va_arg(args, int);

				char buf[128];

				sprintf(buf, "%d", a);

				char* tmp = result;

				result = cm_strcat(tmp, buf);

				free(tmp);

			}

		} else {

			cbuf[0] = log[i];

			char* tmp = result;

			result = cm_strcat(tmp, cbuf);

			free(tmp);

		}

	}

	fprintf(logfile, "%s %s\n", namebuf, result);

	va_end(args);

	free(result);

}