48 lines
1.0 KiB
C
48 lines
1.0 KiB
C
|
#include <stdio.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <time.h>
|
||
|
|
|
||
|
|
#define BUFFER 270
|
||
|
|
|
||
|
|
int main(int argc, char *argv[])
|
||
|
|
{
|
||
|
|
FILE *fp;
|
||
|
|
char *temp;
|
||
|
|
char buffer[BUFFER];
|
||
|
|
time_t timep;
|
||
|
|
struct tm *p;
|
||
|
|
time(&timep);
|
||
|
|
p = localtime(&timep);
|
||
|
|
char p1[2];
|
||
|
|
|
||
|
|
if (p->tm_mday > 10) {
|
||
|
|
if ((fp =
|
||
|
|
popen
|
||
|
|
("grep -E \"^$(date \"+%h\").$(date \"+%d\")\" /var/log/auth.log | grep failure | grep rhost",
|
||
|
|
"r")) == NULL) {
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if ((fp =
|
||
|
|
popen
|
||
|
|
("grep -E \"^$(date \"+%h\")..$(date \"+%d\")\" /var/log/auth.log | grep failure | grep rhost",
|
||
|
|
"r")) == NULL) {
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
while (fgets(buffer, BUFFER, fp) != NULL) {
|
||
|
|
temp = strstr(buffer, "rhost");
|
||
|
|
sscanf(temp, "rhost=%s", temp);
|
||
|
|
|
||
|
|
if (atoi(strncpy(p1, temp, 1)) > 0)
|
||
|
|
printf("%s\n", temp);
|
||
|
|
}
|
||
|
|
|
||
|
|
pclose(fp);
|
||
|
|
return 0;
|
||
|
|
}
|