fixed hostname function and added HOST_NAME_MAX limit

This commit is contained in:
Aaron Marcher 2016-06-10 18:22:05 +02:00 committed by Aaron Marcher (drkhsh)
parent 2e72b212d3
commit c7f3a407f4

View file

@ -5,6 +5,7 @@
#include <arpa/inet.h> #include <arpa/inet.h>
#include <fcntl.h> #include <fcntl.h>
#include <ifaddrs.h> #include <ifaddrs.h>
#include <limits.h>
#include <locale.h> #include <locale.h>
#include <netdb.h> #include <netdb.h>
#include <stdarg.h> #include <stdarg.h>
@ -212,7 +213,7 @@ entropy(const char *null)
char * char *
hostname(const char *null) hostname(const char *null)
{ {
char *hostname = ""; char hostname[HOST_NAME_MAX];
FILE *fp; FILE *fp;
/* open hostname file */ /* open hostname file */
@ -222,7 +223,7 @@ hostname(const char *null)
} }
/* extract hostname */ /* extract hostname */
fscanf(fp, "%s", hostname); fscanf(fp, "%s\n", hostname);
/* close hostname file */ /* close hostname file */
fclose(fp); fclose(fp);