mirror of
https://github.com/ipxe/ipxe
synced 2026-02-14 02:31:26 +03:00
Initial revision
This commit is contained in:
Michael Brown
684
contrib/tftp/main.c
Normal file
684
contrib/tftp/main.c
Normal file
@@ -0,0 +1,684 @@
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/*
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* Copyright (c) 1983 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted
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||||
* provided that the above copyright notice and this paragraph are
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* duplicated in all such forms and that any documentation,
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* advertising materials, and other materials related to such
|
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* distribution and use acknowledge that the software was developed
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* by the University of California, Berkeley. The name of the
|
||||
* University may not be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
|
||||
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#ifndef lint
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char copyright[] =
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"@(#) Copyright (c) 1983 Regents of the University of California.\n\
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All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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static char sccsid[] = "@(#)main.c 5.8 (Berkeley) 10/11/88";
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#endif /* not lint */
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/* Many bug fixes are from Jim Guyton <guyton@rand-unix> */
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/*
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* TFTP User Program -- Command Interface.
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*/
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/file.h>
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#include <netinet/in.h>
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#include <signal.h>
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#include <stdio.h>
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#include <errno.h>
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#include <setjmp.h>
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#include <ctype.h>
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#include <netdb.h>
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#define TIMEOUT 5 /* secs between rexmt's */
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struct sockaddr_in sin;
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int f;
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short port;
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int trace;
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int verbose;
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int connected;
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char mode[32];
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char line[200];
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int margc;
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char *margv[20];
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char *prompt = "tftp";
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jmp_buf toplevel;
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void intr(int);
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struct servent *sp;
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int segsize = 512;
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int quit(), help(), setverbose(), settrace(), status();
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int get(), put(), setpeer(), modecmd(), setrexmt(), settimeout();
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int setbinary(), setascii(), setblocksize();
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#define HELPINDENT (sizeof("connect"))
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struct cmd {
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char *name;
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char *help;
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int (*handler)();
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};
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char vhelp[] = "toggle verbose mode";
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char thelp[] = "toggle packet tracing";
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char chelp[] = "connect to remote tftp";
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char qhelp[] = "exit tftp";
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char hhelp[] = "print help information";
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char shelp[] = "send file";
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char rhelp[] = "receive file";
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char mhelp[] = "set file transfer mode";
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char sthelp[] = "show current status";
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char xhelp[] = "set per-packet retransmission timeout";
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char ihelp[] = "set total retransmission timeout";
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char ashelp[] = "set mode to netascii";
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char bnhelp[] = "set mode to octet";
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char bshelp[] = "set blocksize for next transfer";
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struct cmd cmdtab[] = {
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{ "connect", chelp, setpeer },
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{ "mode", mhelp, modecmd },
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{ "put", shelp, put },
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{ "get", rhelp, get },
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{ "quit", qhelp, quit },
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{ "verbose", vhelp, setverbose },
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{ "trace", thelp, settrace },
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{ "status", sthelp, status },
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{ "binary", bnhelp, setbinary },
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{ "ascii", ashelp, setascii },
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{ "rexmt", xhelp, setrexmt },
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{ "timeout", ihelp, settimeout },
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{ "blocksize", bshelp, setblocksize },
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{ "?", hhelp, help },
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0
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};
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struct cmd *getcmd();
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char *tail();
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char *index();
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char *rindex();
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main(argc, argv)
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char *argv[];
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{
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struct sockaddr_in sin;
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int top;
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sp = getservbyname("tftp", "udp");
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if (sp == 0) {
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fprintf(stderr, "tftp: udp/tftp: unknown service\n");
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exit(1);
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}
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f = socket(AF_INET, SOCK_DGRAM, 0);
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if (f < 0) {
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perror("tftp: socket");
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exit(3);
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}
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bzero((char *)&sin, sizeof (sin));
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sin.sin_family = AF_INET;
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if (bind(f, (struct sockaddr *)&sin, sizeof (sin)) < 0) {
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perror("tftp: bind");
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exit(1);
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}
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strcpy(mode, "netascii");
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signal(SIGINT, intr);
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if (argc > 1) {
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if (setjmp(toplevel) != 0)
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exit(0);
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setpeer(argc, argv);
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}
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top = setjmp(toplevel) == 0;
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for (;;)
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command(top);
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}
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char hostname[100];
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setpeer(argc, argv)
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int argc;
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char *argv[];
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{
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struct hostent *host;
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if (argc < 2) {
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strcpy(line, "Connect ");
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printf("(to) ");
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fgets(&line[strlen(line)], sizeof(line) - strlen(line) - 1, stdin);
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makeargv();
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argc = margc;
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argv = margv;
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}
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if (argc > 3) {
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printf("usage: %s host-name [port]\n", argv[0]);
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return;
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}
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host = gethostbyname(argv[1]);
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if (host) {
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sin.sin_family = host->h_addrtype;
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bcopy(host->h_addr, &sin.sin_addr, host->h_length);
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strcpy(hostname, host->h_name);
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} else {
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sin.sin_family = AF_INET;
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sin.sin_addr.s_addr = inet_addr(argv[1]);
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if (sin.sin_addr.s_addr == -1) {
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connected = 0;
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printf("%s: unknown host\n", argv[1]);
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return;
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}
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strcpy(hostname, argv[1]);
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}
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port = sp->s_port;
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if (argc == 3) {
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port = atoi(argv[2]);
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if (port < 0) {
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printf("%s: bad port number\n", argv[2]);
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connected = 0;
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return;
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}
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port = htons(port);
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}
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connected = 1;
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}
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struct modes {
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char *m_name;
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char *m_mode;
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} modes[] = {
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{ "ascii", "netascii" },
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{ "netascii", "netascii" },
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{ "binary", "octet" },
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{ "image", "octet" },
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{ "octet", "octet" },
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/* { "mail", "mail" }, */
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{ 0, 0 }
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};
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modecmd(argc, argv)
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char *argv[];
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{
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register struct modes *p;
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char *sep;
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if (argc < 2) {
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printf("Using %s mode to transfer files.\n", mode);
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return;
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}
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if (argc == 2) {
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||||
for (p = modes; p->m_name; p++)
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if (strcmp(argv[1], p->m_name) == 0)
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break;
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if (p->m_name) {
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setmode(p->m_mode);
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return;
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}
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printf("%s: unknown mode\n", argv[1]);
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/* drop through and print usage message */
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}
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printf("usage: %s [", argv[0]);
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sep = " ";
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for (p = modes; p->m_name; p++) {
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printf("%s%s", sep, p->m_name);
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if (*sep == ' ')
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sep = " | ";
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}
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printf(" ]\n");
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return;
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}
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setbinary(argc, argv)
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char *argv[];
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{ setmode("octet");
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}
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setascii(argc, argv)
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char *argv[];
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{ setmode("netascii");
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}
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setmode(newmode)
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char *newmode;
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{
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strcpy(mode, newmode);
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if (verbose)
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printf("mode set to %s\n", mode);
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}
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|
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/*
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* Send file(s).
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*/
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put(argc, argv)
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char *argv[];
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{
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int fd;
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register int n;
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register char *cp, *targ;
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if (argc < 2) {
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strcpy(line, "send ");
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printf("(file) ");
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fgets(&line[strlen(line)], sizeof(line) - strlen(line) - 1, stdin);
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makeargv();
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argc = margc;
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argv = margv;
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}
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if (argc < 2) {
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putusage(argv[0]);
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return;
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}
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targ = argv[argc - 1];
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if (index(argv[argc - 1], ':')) {
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char *cp;
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struct hostent *hp;
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for (n = 1; n < argc - 1; n++)
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if (index(argv[n], ':')) {
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putusage(argv[0]);
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return;
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}
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cp = argv[argc - 1];
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targ = index(cp, ':');
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*targ++ = 0;
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hp = gethostbyname(cp);
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if (hp == NULL) {
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fprintf(stderr, "tftp: %s: ", cp);
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herror((char *)NULL);
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return;
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}
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bcopy(hp->h_addr, (caddr_t)&sin.sin_addr, hp->h_length);
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sin.sin_family = hp->h_addrtype;
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connected = 1;
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strcpy(hostname, hp->h_name);
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}
|
||||
if (!connected) {
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printf("No target machine specified.\n");
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return;
|
||||
}
|
||||
if (argc < 4) {
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cp = argc == 2 ? tail(targ) : argv[1];
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fd = open(cp, O_RDONLY);
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if (fd < 0) {
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fprintf(stderr, "tftp: "); perror(cp);
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return;
|
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}
|
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if (verbose)
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printf("putting %s to %s:%s [%s]\n",
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cp, hostname, targ, mode);
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sin.sin_port = port;
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||||
sendfile(fd, targ, mode);
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return;
|
||||
}
|
||||
/* this assumes the target is a directory */
|
||||
/* on a remote unix system. hmmmm. */
|
||||
cp = index(targ, '\0');
|
||||
*cp++ = '/';
|
||||
for (n = 1; n < argc - 1; n++) {
|
||||
strcpy(cp, tail(argv[n]));
|
||||
fd = open(argv[n], O_RDONLY);
|
||||
if (fd < 0) {
|
||||
fprintf(stderr, "tftp: "); perror(argv[n]);
|
||||
continue;
|
||||
}
|
||||
if (verbose)
|
||||
printf("putting %s to %s:%s [%s]\n",
|
||||
argv[n], hostname, targ, mode);
|
||||
sin.sin_port = port;
|
||||
sendfile(fd, targ, mode);
|
||||
}
|
||||
}
|
||||
|
||||
putusage(s)
|
||||
char *s;
|
||||
{
|
||||
printf("usage: %s file ... host:target, or\n", s);
|
||||
printf(" %s file ... target (when already connected)\n", s);
|
||||
}
|
||||
|
||||
/*
|
||||
* Receive file(s).
|
||||
*/
|
||||
get(argc, argv)
|
||||
char *argv[];
|
||||
{
|
||||
int fd;
|
||||
register int n;
|
||||
register char *cp;
|
||||
char *src;
|
||||
|
||||
if (argc < 2) {
|
||||
strcpy(line, "get ");
|
||||
printf("(files) ");
|
||||
fgets(&line[strlen(line)], sizeof(line) - strlen(line) - 1, stdin);
|
||||
makeargv();
|
||||
argc = margc;
|
||||
argv = margv;
|
||||
}
|
||||
if (argc < 2) {
|
||||
getusage(argv[0]);
|
||||
return;
|
||||
}
|
||||
if (!connected) {
|
||||
for (n = 1; n < argc ; n++)
|
||||
if (index(argv[n], ':') == 0) {
|
||||
getusage(argv[0]);
|
||||
return;
|
||||
}
|
||||
}
|
||||
for (n = 1; n < argc ; n++) {
|
||||
src = index(argv[n], ':');
|
||||
if (src == NULL)
|
||||
src = argv[n];
|
||||
else {
|
||||
struct hostent *hp;
|
||||
|
||||
*src++ = 0;
|
||||
hp = gethostbyname(argv[n]);
|
||||
if (hp == NULL) {
|
||||
fprintf(stderr, "tftp: %s: ", argv[n]);
|
||||
herror((char *)NULL);
|
||||
continue;
|
||||
}
|
||||
bcopy(hp->h_addr, (caddr_t)&sin.sin_addr, hp->h_length);
|
||||
sin.sin_family = hp->h_addrtype;
|
||||
connected = 1;
|
||||
strcpy(hostname, hp->h_name);
|
||||
}
|
||||
if (argc < 4) {
|
||||
cp = argc == 3 ? argv[2] : tail(src);
|
||||
fd = creat(cp, 0644);
|
||||
if (fd < 0) {
|
||||
fprintf(stderr, "tftp: "); perror(cp);
|
||||
return;
|
||||
}
|
||||
if (verbose)
|
||||
printf("getting from %s:%s to %s [%s]\n",
|
||||
hostname, src, cp, mode);
|
||||
sin.sin_port = port;
|
||||
recvfile(fd, src, mode);
|
||||
break;
|
||||
}
|
||||
cp = tail(src); /* new .. jdg */
|
||||
fd = creat(cp, 0644);
|
||||
if (fd < 0) {
|
||||
fprintf(stderr, "tftp: "); perror(cp);
|
||||
continue;
|
||||
}
|
||||
if (verbose)
|
||||
printf("getting from %s:%s to %s [%s]\n",
|
||||
hostname, src, cp, mode);
|
||||
sin.sin_port = port;
|
||||
recvfile(fd, src, mode);
|
||||
}
|
||||
}
|
||||
|
||||
getusage(s)
|
||||
char * s;
|
||||
{
|
||||
printf("usage: %s host:file host:file ... file, or\n", s);
|
||||
printf(" %s file file ... file if connected\n", s);
|
||||
}
|
||||
|
||||
int rexmtval = TIMEOUT;
|
||||
|
||||
setrexmt(argc, argv)
|
||||
char *argv[];
|
||||
{
|
||||
int t;
|
||||
|
||||
if (argc < 2) {
|
||||
strcpy(line, "Rexmt-timeout ");
|
||||
printf("(value) ");
|
||||
fgets(&line[strlen(line)], sizeof(line) - strlen(line) - 1, stdin);
|
||||
makeargv();
|
||||
argc = margc;
|
||||
argv = margv;
|
||||
}
|
||||
if (argc != 2) {
|
||||
printf("usage: %s value\n", argv[0]);
|
||||
return;
|
||||
}
|
||||
t = atoi(argv[1]);
|
||||
if (t < 0)
|
||||
printf("%d: bad value\n", t);
|
||||
else
|
||||
rexmtval = t;
|
||||
}
|
||||
|
||||
int maxtimeout = 5 * TIMEOUT;
|
||||
|
||||
settimeout(argc, argv)
|
||||
char *argv[];
|
||||
{
|
||||
int t;
|
||||
|
||||
if (argc < 2) {
|
||||
strcpy(line, "Maximum-timeout ");
|
||||
printf("(value) ");
|
||||
fgets(&line[strlen(line)], sizeof(line) - strlen(line) - 1, stdin);
|
||||
makeargv();
|
||||
argc = margc;
|
||||
argv = margv;
|
||||
}
|
||||
if (argc != 2) {
|
||||
printf("usage: %s value\n", argv[0]);
|
||||
return;
|
||||
}
|
||||
t = atoi(argv[1]);
|
||||
if (t < 0)
|
||||
printf("%d: bad value\n", t);
|
||||
else
|
||||
maxtimeout = t;
|
||||
}
|
||||
|
||||
status(argc, argv)
|
||||
char *argv[];
|
||||
{
|
||||
if (connected)
|
||||
printf("Connected to %s.\n", hostname);
|
||||
else
|
||||
printf("Not connected.\n");
|
||||
printf("Mode: %s Verbose: %s Tracing: %s\n", mode,
|
||||
verbose ? "on" : "off", trace ? "on" : "off");
|
||||
printf("Rexmt-interval: %d seconds, Max-timeout: %d seconds\n",
|
||||
rexmtval, maxtimeout);
|
||||
}
|
||||
|
||||
void intr(int sig)
|
||||
{
|
||||
signal(SIGALRM, SIG_IGN);
|
||||
alarm(0);
|
||||
longjmp(toplevel, -1);
|
||||
}
|
||||
|
||||
char *
|
||||
tail(filename)
|
||||
char *filename;
|
||||
{
|
||||
register char *s;
|
||||
|
||||
while (*filename) {
|
||||
s = rindex(filename, '/');
|
||||
if (s == NULL)
|
||||
break;
|
||||
if (s[1])
|
||||
return (s + 1);
|
||||
*s = '\0';
|
||||
}
|
||||
return (filename);
|
||||
}
|
||||
|
||||
/*
|
||||
* Command parser.
|
||||
*/
|
||||
command(top)
|
||||
int top;
|
||||
{
|
||||
register struct cmd *c;
|
||||
|
||||
if (!top)
|
||||
putchar('\n');
|
||||
for (;;) {
|
||||
printf("%s> ", prompt);
|
||||
if (fgets(line, sizeof(line), stdin) == 0) {
|
||||
if (feof(stdin)) {
|
||||
quit();
|
||||
} else {
|
||||
continue;
|
||||
}
|
||||
}
|
||||
if (line[0] == 0)
|
||||
continue;
|
||||
makeargv();
|
||||
c = getcmd(margv[0]);
|
||||
if (c == (struct cmd *)-1) {
|
||||
printf("?Ambiguous command\n");
|
||||
continue;
|
||||
}
|
||||
if (c == 0) {
|
||||
printf("?Invalid command\n");
|
||||
continue;
|
||||
}
|
||||
(*c->handler)(margc, margv);
|
||||
}
|
||||
}
|
||||
|
||||
struct cmd *
|
||||
getcmd(name)
|
||||
register char *name;
|
||||
{
|
||||
register char *p, *q;
|
||||
register struct cmd *c, *found;
|
||||
register int nmatches, longest;
|
||||
|
||||
longest = 0;
|
||||
nmatches = 0;
|
||||
found = 0;
|
||||
for (c = cmdtab; p = c->name; c++) {
|
||||
for (q = name; *q == *p++; q++)
|
||||
if (*q == 0) /* exact match? */
|
||||
return (c);
|
||||
if (!*q) { /* the name was a prefix */
|
||||
if (q - name > longest) {
|
||||
longest = q - name;
|
||||
nmatches = 1;
|
||||
found = c;
|
||||
} else if (q - name == longest)
|
||||
nmatches++;
|
||||
}
|
||||
}
|
||||
if (nmatches > 1)
|
||||
return ((struct cmd *)-1);
|
||||
return (found);
|
||||
}
|
||||
|
||||
/*
|
||||
* Slice a string up into argc/argv.
|
||||
*/
|
||||
makeargv()
|
||||
{
|
||||
register char *cp;
|
||||
register char **argp = margv;
|
||||
|
||||
margc = 0;
|
||||
for (cp = line; *cp;) {
|
||||
while (isspace(*cp))
|
||||
cp++;
|
||||
if (*cp == '\0')
|
||||
break;
|
||||
*argp++ = cp;
|
||||
margc += 1;
|
||||
while (*cp != '\0' && !isspace(*cp))
|
||||
cp++;
|
||||
if (*cp == '\0')
|
||||
break;
|
||||
*cp++ = '\0';
|
||||
}
|
||||
*argp++ = 0;
|
||||
}
|
||||
|
||||
/*VARARGS*/
|
||||
quit()
|
||||
{
|
||||
exit(0);
|
||||
}
|
||||
|
||||
/*
|
||||
* Help command.
|
||||
*/
|
||||
help(argc, argv)
|
||||
int argc;
|
||||
char *argv[];
|
||||
{
|
||||
register struct cmd *c;
|
||||
|
||||
if (argc == 1) {
|
||||
printf("Commands may be abbreviated. Commands are:\n\n");
|
||||
for (c = cmdtab; c->name; c++)
|
||||
printf("%-*s\t%s\n", HELPINDENT, c->name, c->help);
|
||||
return;
|
||||
}
|
||||
while (--argc > 0) {
|
||||
register char *arg;
|
||||
arg = *++argv;
|
||||
c = getcmd(arg);
|
||||
if (c == (struct cmd *)-1)
|
||||
printf("?Ambiguous help command %s\n", arg);
|
||||
else if (c == (struct cmd *)0)
|
||||
printf("?Invalid help command %s\n", arg);
|
||||
else
|
||||
printf("%s\n", c->help);
|
||||
}
|
||||
}
|
||||
|
||||
/*VARARGS*/
|
||||
settrace()
|
||||
{
|
||||
trace = !trace;
|
||||
printf("Packet tracing %s.\n", trace ? "on" : "off");
|
||||
}
|
||||
|
||||
/*VARARGS*/
|
||||
setverbose()
|
||||
{
|
||||
verbose = !verbose;
|
||||
printf("Verbose mode %s.\n", verbose ? "on" : "off");
|
||||
}
|
||||
|
||||
setblocksize(argc, argv)
|
||||
char *argv[];
|
||||
{
|
||||
int t;
|
||||
|
||||
if (argc < 2) {
|
||||
strcpy(line, "blocksize ");
|
||||
printf("(value) ");
|
||||
fgets(&line[strlen(line)], sizeof(line) - strlen(line) - 1, stdin);
|
||||
makeargv();
|
||||
argc = margc;
|
||||
argv = margv;
|
||||
}
|
||||
if (argc != 2) {
|
||||
printf("usage: %s value\n", argv[0]);
|
||||
return;
|
||||
}
|
||||
t = atoi(argv[1]);
|
||||
if (t < 8 || t > 1432)
|
||||
printf("%d: bad value\n", t);
|
||||
else
|
||||
segsize = t;
|
||||
}
|
||||
Reference in New Issue
Block a user