X-Git-Url: https://code.citadel.org/?a=blobdiff_plain;f=citadel%2Flocate_host.c;h=64879eefbb797115d5037b89572205a702977611;hb=HEAD;hp=69080d709f38d9228a9ab722ea9ebb8e09e222f6;hpb=f6d228c20ee984482f75a88f57d92587138ba13f;p=citadel.git diff --git a/citadel/locate_host.c b/citadel/locate_host.c deleted file mode 100644 index 69080d709..000000000 --- a/citadel/locate_host.c +++ /dev/null @@ -1,71 +0,0 @@ -/* - * locate the originating host - * $Id$ - */ - -#include "sysdep.h" -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#ifdef HAVE_PTHREAD_H -#include -#endif -#include "citadel.h" -#include "server.h" -#include "locate_host.h" -#include "config.h" - -void locate_host(char *tbuf, const struct in_addr *addr) -{ - struct hostent *ch; - char *i; - int a1, a2, a3, a4; - -#ifdef HAVE_NONREENTRANT_NETDB - begin_critical_section(S_NETDB); -#endif - - if ((ch = gethostbyaddr((char *) addr, sizeof(*addr), AF_INET)) == - NULL) { - bad_dns: - i = (char *) addr; - a1 = ((*i++) & 0xff); - a2 = ((*i++) & 0xff); - a3 = ((*i++) & 0xff); - a4 = ((*i++) & 0xff); - sprintf(tbuf, "%d.%d.%d.%d", a1, a2, a3, a4); - goto end; /* because we might need to end the critical - section */ - } - /* check if the forward DNS agrees; if not, they're spoofing */ - i = strdup(ch->h_name); - ch = gethostbyname(i); - free(i); - if (ch == NULL) - goto bad_dns; - - /* check address for consistency */ - for (; *ch->h_addr_list; ch->h_addr_list++) - if (!memcmp(*ch->h_addr_list, addr, - sizeof *addr)) { - strncpy(tbuf, ch->h_name, 24); - goto end; - } - goto bad_dns; /* they were spoofing. report a numeric IP - address. */ - - end: - -#ifdef HAVE_NONREENTRANT_NETDB - end_critical_section(S_NETDB); -#endif - - tbuf[24] = 0; -}