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Reverse DNS-lookup

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This commit is contained in:
Michael Theall 2016-01-15 12:13:28 -06:00
parent 1c5084e08e
commit 9d2a3906f3
1 changed files with 14 additions and 2 deletions
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16
source/ftp.c
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@ -5,6 +5,7 @@
#include <errno.h> #include <errno.h>
#include <fcntl.h> #include <fcntl.h>
#include <malloc.h> #include <malloc.h>
#include <netdb.h>
#include <netinet/in.h> #include <netinet/in.h>
#include <poll.h> #include <poll.h>
#include <stdarg.h> #include <stdarg.h>
@ -675,6 +676,8 @@ ftp_session_new(int listen_fd)
ftp_session_t *session; ftp_session_t *session;
struct sockaddr_in addr; struct sockaddr_in addr;
socklen_t addrlen = sizeof(addr); socklen_t addrlen = sizeof(addr);
char host[NI_MAXHOST+1];
char serv[NI_MAXSERV+1];
/* accept connection */ /* accept connection */
new_fd = accept(listen_fd, (struct sockaddr*)&addr, &addrlen); new_fd = accept(listen_fd, (struct sockaddr*)&addr, &addrlen);
@ -684,8 +687,17 @@ ftp_session_new(int listen_fd)
return; return;
} }
console_print(CYAN "accepted connection from %s:%u\n" RESET, memset(host, 0, sizeof(host));
inet_ntoa(addr.sin_addr), ntohs(addr.sin_port)); memset(serv, 0, sizeof(serv));
rc = getnameinfo((struct sockaddr*)&addr, addrlen,
host, 15, serv, 2, 0);
if(rc != 0)
console_print(CYAN "accepted connection from %s:%u\n" RESET,
inet_ntoa(addr.sin_addr), ntohs(addr.sin_port));
else
console_print(CYAN "accepted connection from %s:%s\n" RESET,
host, serv);
/* allocate a new session */ /* allocate a new session */
session = (ftp_session_t*)malloc(sizeof(ftp_session_t)); session = (ftp_session_t*)malloc(sizeof(ftp_session_t));