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Log using Combined Log Format (commonly found in apache log)

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Commonly found in Apache log. It adds 2 fields upon the Common Log
Format (referer and user-agent).

https://en.wikipedia.org/wiki/Common_Log_Format

It is just a matter of reordering what your were already logging with a
new date formatting.

* We are cheating because we always assume HTTP/1.1 as the request
  header.

* We assume the user name is unknown.
This commit is contained in:
solsTiCe d'Hiver 2017-11-27 20:10:02 +01:00 committed by Emil Mikulic
parent 85609c8095
commit d777aacd98
1 changed files with 16 additions and 3 deletions
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19
darkhttpd.c
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@ -1280,9 +1280,22 @@ static void logencode(const char *src, char *dest) {
dest[j] = '\0';
}
/* Format [when] as a CLF date format, stored in the specified buffer. The same
* buffer is returned for convenience.
*/
#define CLF_DATE_LEN 29 /* strlen("[10/Oct/2000:13:55:36 -0700]")+1 */
static char *clf_date(char *dest, const time_t when) {
time_t when_copy = when;
if (strftime(dest, CLF_DATE_LEN,
"[%d/%b/%Y:%H:%M:%S %z]", localtime(&when_copy)) == 0)
errx(1, "strftime() failed [%s]", dest);
return dest;
}
/* Add a connection's details to the logfile. */
static void log_connection(const struct connection *conn) {
char *safe_method, *safe_url, *safe_referer, *safe_user_agent;
char *safe_method, *safe_url, *safe_referer, *safe_user_agent,
dest[CLF_DATE_LEN];
if (logfile == NULL)
return;
@ -1307,9 +1320,9 @@ static void log_connection(const struct connection *conn) {
#define use_safe(x) safe_##x ? safe_##x : ""
fprintf(logfile, "%lu %s \"%s %s\" %d %llu \"%s\" \"%s\"\n",
(unsigned long int)now,
fprintf(logfile, "%s - - %s \"%s %s HTTP/1.1\" %d %llu \"%s\" \"%s\"\n",
get_address_text(&conn->client),
clf_date(dest, now),
use_safe(method),
use_safe(url),
conn->http_code,