mirror of
https://github.com/reactos/reactos.git
synced 2024-12-28 01:55:19 +00:00
124 lines
2.6 KiB
C
124 lines
2.6 KiB
C
/* log.c
|
|
*
|
|
* Copyright (c) 1992-2001 by Mike Gleason.
|
|
* All rights reserved.
|
|
*
|
|
*/
|
|
|
|
#include "syshdrs.h"
|
|
|
|
#include "util.h"
|
|
#include "log.h"
|
|
|
|
extern int gMaxLogSize;
|
|
char gLogFileName[256];
|
|
|
|
extern char gOurDirectoryPath[];
|
|
|
|
|
|
void
|
|
InitLog(void)
|
|
{
|
|
OurDirectoryPath(gLogFileName, sizeof(gLogFileName), kLogFileName);
|
|
} /* InitLog */
|
|
|
|
|
|
|
|
void
|
|
LogXfer(const char *const mode, const char *const url)
|
|
{
|
|
FILE *fp;
|
|
|
|
if (gMaxLogSize == 0)
|
|
return; /* Don't log */
|
|
|
|
fp = fopen(gLogFileName, FOPEN_APPEND_TEXT);
|
|
if (fp != NULL) {
|
|
(void) fprintf(fp, " %s %s\n", mode, url);
|
|
(void) fclose(fp);
|
|
}
|
|
} /* LogOpen */
|
|
|
|
|
|
|
|
void
|
|
LogOpen(const char *const host)
|
|
{
|
|
time_t now;
|
|
FILE *fp;
|
|
|
|
if (gMaxLogSize == 0)
|
|
return; /* Don't log */
|
|
|
|
time(&now);
|
|
fp = fopen(gLogFileName, FOPEN_APPEND_TEXT);
|
|
if (fp != NULL) {
|
|
(void) fprintf(fp, "%s at %s", host, ctime(&now));
|
|
(void) fclose(fp);
|
|
}
|
|
} /* LogOpen */
|
|
|
|
|
|
|
|
|
|
void
|
|
EndLog(void)
|
|
{
|
|
FILE *new, *old;
|
|
struct Stat st;
|
|
long fat;
|
|
char str[512];
|
|
char tmpLog[256];
|
|
|
|
if (gOurDirectoryPath[0] == '\0')
|
|
return; /* Don't create in root directory. */
|
|
|
|
/* If the user wants to, s/he can specify the maximum size of the log file,
|
|
* so it doesn't waste too much disk space. If the log is too fat, trim the
|
|
* older lines (at the top) until we're under the limit.
|
|
*/
|
|
if ((gMaxLogSize <= 0) || (Stat(gLogFileName, &st) < 0))
|
|
return; /* Never trim, or no log. */
|
|
|
|
if ((size_t)st.st_size < (size_t)gMaxLogSize)
|
|
return; /* Log size not over limit yet. */
|
|
|
|
if ((old = fopen(gLogFileName, FOPEN_READ_TEXT)) == NULL)
|
|
return;
|
|
|
|
/* Want to make it so we're about 30% below capacity.
|
|
* That way we won't trim the log each time we run the program.
|
|
*/
|
|
fat = (long) st.st_size - (long) gMaxLogSize + (long) (0.30 * gMaxLogSize);
|
|
while (fat > 0L) {
|
|
if (fgets(str, (int) sizeof(str), old) == NULL)
|
|
return;
|
|
fat -= (long) strlen(str);
|
|
}
|
|
/* skip lines until a new site was opened */
|
|
for (;;) {
|
|
if (fgets(str, (int) sizeof(str), old) == NULL) {
|
|
(void) fclose(old);
|
|
(void) remove(gLogFileName);
|
|
return; /* Nothing left, start anew next time. */
|
|
}
|
|
if (! isspace(*str))
|
|
break;
|
|
}
|
|
|
|
/* Copy the remaining lines in "old" to "new" */
|
|
OurDirectoryPath(tmpLog, sizeof(tmpLog), "log.tmp");
|
|
if ((new = fopen(tmpLog, FOPEN_WRITE_TEXT)) == NULL) {
|
|
(void) fclose(old);
|
|
return;
|
|
}
|
|
(void) fputs(str, new);
|
|
while (fgets(str, (int) sizeof(str), old) != NULL)
|
|
(void) fputs(str, new);
|
|
(void) fclose(old);
|
|
(void) fclose(new);
|
|
if (remove(gLogFileName) < 0)
|
|
return;
|
|
if (rename(tmpLog, gLogFileName) < 0)
|
|
return;
|
|
} /* EndLog */
|