/usr.bin/tftp/main.c
https://bitbucket.org/freebsd/freebsd-head/ · C · 1054 lines · 869 code · 120 blank · 65 comment · 209 complexity · 415be53676a36967f392ad4e478e032e MD5 · raw file
- /*
- * Copyright (c) 1983, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
- #ifndef lint
- static const char copyright[] =
- "@(#) Copyright (c) 1983, 1993\n\
- The Regents of the University of California. All rights reserved.\n";
- #endif
- #if 0
- #ifndef lint
- static char sccsid[] = "@(#)main.c 8.1 (Berkeley) 6/6/93";
- #endif
- #endif
- #include <sys/cdefs.h>
- __FBSDID("$FreeBSD$");
- /* Many bug fixes are from Jim Guyton <guyton@rand-unix> */
- /*
- * TFTP User Program -- Command Interface.
- */
- #include <sys/param.h>
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <sys/sysctl.h>
- #include <sys/file.h>
- #include <sys/stat.h>
- #include <netinet/in.h>
- #include <arpa/inet.h>
- #include <arpa/tftp.h>
- #include <ctype.h>
- #include <err.h>
- #include <histedit.h>
- #include <netdb.h>
- #include <setjmp.h>
- #include <signal.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <unistd.h>
- #include "tftp-utils.h"
- #include "tftp-io.h"
- #include "tftp-options.h"
- #include "tftp.h"
- #define MAXLINE 200
- #define TIMEOUT 5 /* secs between rexmt's */
- typedef struct sockaddr_storage peeraddr;
- static int connected;
- static char mode[32];
- jmp_buf toplevel;
- volatile int txrx_error;
- static int peer;
- #define MAX_MARGV 20
- static int margc;
- static char *margv[MAX_MARGV];
- int verbose;
- char *port = NULL;
- static void get(int, char **);
- static void help(int, char **);
- static void intr(int);
- static void modecmd(int, char **);
- static void put(int, char **);
- static void quit(int, char **);
- static void setascii(int, char **);
- static void setbinary(int, char **);
- static void setpeer0(char *, const char *);
- static void setpeer(int, char **);
- static void settimeoutpacket(int, char **);
- static void settimeoutnetwork(int, char **);
- static void setdebug(int, char **);
- static void setverbose(int, char **);
- static void showstatus(int, char **);
- static void setblocksize(int, char **);
- static void setblocksize2(int, char **);
- static void setoptions(int, char **);
- static void setrollover(int, char **);
- static void setpacketdrop(int, char **);
- static void command(void) __dead2;
- static const char *command_prompt(void);
- static void urihandling(char *URI);
- static void getusage(char *);
- static void makeargv(char *line);
- static void putusage(char *);
- static void settftpmode(const char *);
- static char *tail(char *);
- static struct cmd *getcmd(char *);
- #define HELPINDENT (sizeof("connect"))
- struct cmd {
- const char *name;
- void (*handler)(int, char **);
- const char *help;
- };
- static struct cmd cmdtab[] = {
- { "connect", setpeer, "connect to remote tftp" },
- { "mode", modecmd, "set file transfer mode" },
- { "put", put, "send file" },
- { "get", get, "receive file" },
- { "quit", quit, "exit tftp" },
- { "verbose", setverbose, "toggle verbose mode" },
- { "status", showstatus, "show current status" },
- { "binary", setbinary, "set mode to octet" },
- { "ascii", setascii, "set mode to netascii" },
- { "rexmt", settimeoutpacket,
- "set per-packet retransmission timeout[-]" },
- { "timeout", settimeoutnetwork,
- "set total retransmission timeout" },
- { "trace", setdebug, "enable 'debug packet'[-]" },
- { "debug", setdebug, "enable verbose output" },
- { "blocksize", setblocksize, "set blocksize[*]" },
- { "blocksize2", setblocksize2, "set blocksize as a power of 2[**]" },
- { "rollover", setrollover, "rollover after 64K packets[**]" },
- { "options", setoptions,
- "enable or disable RFC2347 style options" },
- { "help", help, "print help information" },
- { "packetdrop", setpacketdrop, "artificial packetloss feature" },
- { "?", help, "print help information" },
- { NULL, NULL, NULL }
- };
- static struct modes {
- const char *m_name;
- const char *m_mode;
- } modes[] = {
- { "ascii", "netascii" },
- { "netascii", "netascii" },
- { "binary", "octet" },
- { "image", "octet" },
- { "octet", "octet" },
- { NULL, NULL }
- };
- int
- main(int argc, char *argv[])
- {
- acting_as_client = 1;
- peer = -1;
- strcpy(mode, "netascii");
- signal(SIGINT, intr);
- if (argc > 1) {
- if (setjmp(toplevel) != 0)
- exit(txrx_error);
- if (strncmp(argv[1], "tftp://", 7) == 0) {
- urihandling(argv[1]);
- exit(txrx_error);
- }
- setpeer(argc, argv);
- }
- if (setjmp(toplevel) != 0)
- (void)putchar('\n');
- init_options();
- command();
- }
- /*
- * RFC3617 handling of TFTP URIs:
- *
- * tftpURI = "tftp://" host "/" file [ mode ]
- * mode = ";" "mode=" ( "netascii" / "octet" )
- * file = *( unreserved / escaped )
- * host = <as specified by RFC 2732>
- * unreserved = <as specified in RFC 2396>
- * escaped = <as specified in RFC 2396>
- *
- * We are cheating a little bit by allowing any mode as specified in the
- * modes table defined earlier on in this file and mapping it on the real
- * mode.
- */
- static void
- urihandling(char *URI)
- {
- char uri[ARG_MAX];
- char *host = NULL;
- char *path = NULL;
- char *opts = NULL;
- const char *tmode = "octet";
- char *s;
- char line[MAXLINE];
- int i;
- strncpy(uri, URI, ARG_MAX);
- host = uri + 7;
- if ((s = strchr(host, '/')) == NULL) {
- fprintf(stderr,
- "Invalid URI: Couldn't find / after hostname\n");
- exit(1);
- }
- *s = '\0';
- path = s + 1;
- if ((s = strchr(path, ';')) != NULL) {
- *s = '\0';
- opts = s + 1;
- if (strncmp(opts, "mode=", 5) == 0) {
- tmode = opts;
- tmode += 5;
- for (i = 0; modes[i].m_name != NULL; i++) {
- if (strcmp(modes[i].m_name, tmode) == 0)
- break;
- }
- if (modes[i].m_name == NULL) {
- fprintf(stderr, "Invalid mode: '%s'\n", mode);
- exit(1);
- }
- settftpmode(modes[i].m_mode);
- }
- } else {
- settftpmode("octet");
- }
- setpeer0(host, NULL);
- sprintf(line, "get %s", path);
- makeargv(line);
- get(margc, margv);
- }
- static char hostname[MAXHOSTNAMELEN];
- static void
- setpeer0(char *host, const char *lport)
- {
- struct addrinfo hints, *res0, *res;
- int error;
- const char *cause = "unknown";
- if (connected) {
- close(peer);
- peer = -1;
- }
- connected = 0;
- memset(&hints, 0, sizeof(hints));
- hints.ai_family = PF_UNSPEC;
- hints.ai_socktype = SOCK_DGRAM;
- hints.ai_protocol = IPPROTO_UDP;
- hints.ai_flags = AI_CANONNAME;
- if (!lport)
- lport = "tftp";
- error = getaddrinfo(host, lport, &hints, &res0);
- if (error) {
- warnx("%s", gai_strerror(error));
- return;
- }
- for (res = res0; res; res = res->ai_next) {
- if (res->ai_addrlen > sizeof(peeraddr))
- continue;
- peer = socket(res->ai_family, res->ai_socktype,
- res->ai_protocol);
- if (peer < 0) {
- cause = "socket";
- continue;
- }
- memset(&peer_sock, 0, sizeof(peer_sock));
- peer_sock.ss_family = res->ai_family;
- peer_sock.ss_len = res->ai_addrlen;
- if (bind(peer, (struct sockaddr *)&peer_sock, peer_sock.ss_len) < 0) {
- cause = "bind";
- close(peer);
- peer = -1;
- continue;
- }
- break;
- }
- if (peer < 0)
- warn("%s", cause);
- else {
- /* res->ai_addr <= sizeof(peeraddr) is guaranteed */
- memcpy(&peer_sock, res->ai_addr, res->ai_addrlen);
- if (res->ai_canonname) {
- (void) strncpy(hostname, res->ai_canonname,
- sizeof(hostname));
- } else
- (void) strncpy(hostname, host, sizeof(hostname));
- hostname[sizeof(hostname)-1] = 0;
- connected = 1;
- }
- freeaddrinfo(res0);
- }
- static void
- setpeer(int argc, char *argv[])
- {
- char line[MAXLINE];
- if (argc < 2) {
- strcpy(line, "Connect ");
- printf("(to) ");
- fgets(&line[strlen(line)], sizeof line - strlen(line), stdin);
- makeargv(line);
- argc = margc;
- argv = margv;
- }
- if ((argc < 2) || (argc > 3)) {
- printf("usage: %s [host [port]]\n", argv[0]);
- return;
- }
- if (argc == 3) {
- port = argv[2];
- setpeer0(argv[1], argv[2]);
- } else
- setpeer0(argv[1], NULL);
- }
- static void
- modecmd(int argc, char *argv[])
- {
- struct modes *p;
- const char *sep;
- if (argc < 2) {
- printf("Using %s mode to transfer files.\n", mode);
- return;
- }
- if (argc == 2) {
- for (p = modes; p->m_name; p++)
- if (strcmp(argv[1], p->m_name) == 0)
- break;
- if (p->m_name) {
- settftpmode(p->m_mode);
- return;
- }
- printf("%s: unknown mode\n", argv[1]);
- /* drop through and print usage message */
- }
- printf("usage: %s [", argv[0]);
- sep = " ";
- for (p = modes; p->m_name != NULL; p++) {
- printf("%s%s", sep, p->m_name);
- if (*sep == ' ')
- sep = " | ";
- }
- printf(" ]\n");
- return;
- }
- static void
- setbinary(int argc __unused, char *argv[] __unused)
- {
- settftpmode("octet");
- }
- static void
- setascii(int argc __unused, char *argv[] __unused)
- {
- settftpmode("netascii");
- }
- static void
- settftpmode(const char *newmode)
- {
- strcpy(mode, newmode);
- if (verbose)
- printf("mode set to %s\n", mode);
- }
- /*
- * Send file(s).
- */
- static void
- put(int argc, char *argv[])
- {
- int fd;
- int n;
- char *cp, *targ;
- char line[MAXLINE];
- struct stat sb;
- if (argc < 2) {
- strcpy(line, "send ");
- printf("(file) ");
- fgets(&line[strlen(line)], sizeof line - strlen(line), stdin);
- makeargv(line);
- argc = margc;
- argv = margv;
- }
- if (argc < 2) {
- putusage(argv[0]);
- return;
- }
- targ = argv[argc - 1];
- if (strrchr(argv[argc - 1], ':')) {
- char *lcp;
- for (n = 1; n < argc - 1; n++)
- if (strchr(argv[n], ':')) {
- putusage(argv[0]);
- return;
- }
- lcp = argv[argc - 1];
- targ = strrchr(lcp, ':');
- *targ++ = 0;
- if (lcp[0] == '[' && lcp[strlen(lcp) - 1] == ']') {
- lcp[strlen(lcp) - 1] = '\0';
- lcp++;
- }
- setpeer0(lcp, NULL);
- }
- if (!connected) {
- printf("No target machine specified.\n");
- return;
- }
- if (argc < 4) {
- cp = argc == 2 ? tail(targ) : argv[1];
- fd = open(cp, O_RDONLY);
- if (fd < 0) {
- warn("%s", cp);
- return;
- }
- stat(cp, &sb);
- asprintf(&options[OPT_TSIZE].o_request, "%ju", sb.st_size);
- if (verbose)
- printf("putting %s to %s:%s [%s]\n",
- cp, hostname, targ, mode);
- xmitfile(peer, port, fd, targ, mode);
- return;
- }
- /* this assumes the target is a directory */
- /* on a remote unix system. hmmmm. */
- cp = strchr(targ, '\0');
- *cp++ = '/';
- for (n = 1; n < argc - 1; n++) {
- strcpy(cp, tail(argv[n]));
- fd = open(argv[n], O_RDONLY);
- if (fd < 0) {
- warn("%s", argv[n]);
- continue;
- }
- stat(cp, &sb);
- asprintf(&options[OPT_TSIZE].o_request, "%ju", sb.st_size);
- if (verbose)
- printf("putting %s to %s:%s [%s]\n",
- argv[n], hostname, targ, mode);
- xmitfile(peer, port, fd, targ, mode);
- }
- }
- static void
- putusage(char *s)
- {
- printf("usage: %s file [remotename]\n", s);
- printf(" %s file host:remotename\n", s);
- printf(" %s file1 file2 ... fileN [[host:]remote-directory]\n", s);
- }
- /*
- * Receive file(s).
- */
- static void
- get(int argc, char *argv[])
- {
- int fd;
- int n;
- char *cp;
- char *src;
- char line[MAXLINE];
- if (argc < 2) {
- strcpy(line, "get ");
- printf("(files) ");
- fgets(&line[strlen(line)], sizeof line - strlen(line), stdin);
- makeargv(line);
- argc = margc;
- argv = margv;
- }
- if (argc < 2) {
- getusage(argv[0]);
- return;
- }
- if (!connected) {
- for (n = 1; n < argc ; n++)
- if (strrchr(argv[n], ':') == 0) {
- printf("No remote host specified and "
- "no host given for file '%s'\n", argv[n]);
- getusage(argv[0]);
- return;
- }
- }
- for (n = 1; n < argc ; n++) {
- src = strrchr(argv[n], ':');
- if (src == NULL)
- src = argv[n];
- else {
- char *lcp;
- *src++ = 0;
- lcp = argv[n];
- if (lcp[0] == '[' && lcp[strlen(lcp) - 1] == ']') {
- lcp[strlen(lcp) - 1] = '\0';
- lcp++;
- }
- setpeer0(lcp, NULL);
- if (!connected)
- continue;
- }
- if (argc < 4) {
- cp = argc == 3 ? argv[2] : tail(src);
- fd = creat(cp, 0644);
- if (fd < 0) {
- warn("%s", cp);
- return;
- }
- if (verbose)
- printf("getting from %s:%s to %s [%s]\n",
- hostname, src, cp, mode);
- recvfile(peer, port, fd, src, mode);
- break;
- }
- cp = tail(src); /* new .. jdg */
- fd = creat(cp, 0644);
- if (fd < 0) {
- warn("%s", cp);
- continue;
- }
- if (verbose)
- printf("getting from %s:%s to %s [%s]\n",
- hostname, src, cp, mode);
- recvfile(peer, port, fd, src, mode);
- }
- }
- static void
- getusage(char *s)
- {
- printf("usage: %s file [localname]\n", s);
- printf(" %s [host:]file [localname]\n", s);
- printf(" %s [host1:]file1 [host2:]file2 ... [hostN:]fileN\n", s);
- }
- static void
- settimeoutpacket(int argc, char *argv[])
- {
- int t;
- char line[MAXLINE];
- if (argc < 2) {
- strcpy(line, "Packet timeout ");
- printf("(value) ");
- fgets(&line[strlen(line)], sizeof line - strlen(line), stdin);
- makeargv(line);
- argc = margc;
- argv = margv;
- }
- if (argc != 2) {
- printf("usage: %s value\n", argv[0]);
- return;
- }
- t = atoi(argv[1]);
- if (t < 0) {
- printf("%s: bad value\n", argv[1]);
- return;
- }
- settimeouts(t, timeoutnetwork, maxtimeouts);
- }
- static void
- settimeoutnetwork(int argc, char *argv[])
- {
- int t;
- char line[MAXLINE];
- if (argc < 2) {
- strcpy(line, "Network timeout ");
- printf("(value) ");
- fgets(&line[strlen(line)], sizeof line - strlen(line), stdin);
- makeargv(line);
- argc = margc;
- argv = margv;
- }
- if (argc != 2) {
- printf("usage: %s value\n", argv[0]);
- return;
- }
- t = atoi(argv[1]);
- if (t < 0) {
- printf("%s: bad value\n", argv[1]);
- return;
- }
- settimeouts(timeoutpacket, t, maxtimeouts);
- }
- static void
- showstatus(int argc __unused, char *argv[] __unused)
- {
- printf("Remote host: %s\n",
- connected ? hostname : "none specified yet");
- printf("RFC2347 Options support: %s\n",
- options_rfc_enabled ? "enabled" : "disabled");
- printf("Non-RFC defined options support: %s\n",
- options_extra_enabled ? "enabled" : "disabled");
- printf("Mode: %s\n", mode);
- printf("Verbose: %s\n", verbose ? "on" : "off");
- printf("Debug: %s\n", debug_show(debug));
- printf("Artificial packetloss: %d in 100 packets\n",
- packetdroppercentage);
- printf("Segment size: %d bytes\n", segsize);
- printf("Network timeout: %d seconds\n", timeoutpacket);
- printf("Maximum network timeout: %d seconds\n", timeoutnetwork);
- printf("Maximum timeouts: %d \n", maxtimeouts);
- }
- static void
- intr(int dummy __unused)
- {
- signal(SIGALRM, SIG_IGN);
- alarm(0);
- longjmp(toplevel, -1);
- }
- static char *
- tail(char *filename)
- {
- char *s;
- while (*filename) {
- s = strrchr(filename, '/');
- if (s == NULL)
- break;
- if (s[1])
- return (s + 1);
- *s = '\0';
- }
- return (filename);
- }
- static const char *
- command_prompt(void)
- {
- return ("tftp> ");
- }
- /*
- * Command parser.
- */
- static void
- command(void)
- {
- HistEvent he;
- struct cmd *c;
- static EditLine *el;
- static History *hist;
- const char *bp;
- char *cp;
- int len, num, vrbose;
- char line[MAXLINE];
- vrbose = isatty(0);
- if (vrbose) {
- el = el_init("tftp", stdin, stdout, stderr);
- hist = history_init();
- history(hist, &he, H_SETSIZE, 100);
- el_set(el, EL_HIST, history, hist);
- el_set(el, EL_EDITOR, "emacs");
- el_set(el, EL_PROMPT, command_prompt);
- el_set(el, EL_SIGNAL, 1);
- el_source(el, NULL);
- }
- for (;;) {
- if (vrbose) {
- if ((bp = el_gets(el, &num)) == NULL || num == 0)
- exit(0);
- len = (num > MAXLINE) ? MAXLINE : num;
- memcpy(line, bp, len);
- line[len] = '\0';
- history(hist, &he, H_ENTER, bp);
- } else {
- line[0] = 0;
- if (fgets(line, sizeof line , stdin) == NULL) {
- if (feof(stdin)) {
- exit(txrx_error);
- } else {
- continue;
- }
- }
- }
- if ((cp = strchr(line, '\n')))
- *cp = '\0';
- if (line[0] == 0)
- continue;
- makeargv(line);
- if (margc == 0)
- continue;
- 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);
- }
- }
- static struct cmd *
- getcmd(char *name)
- {
- const char *p, *q;
- struct cmd *c, *found;
- int nmatches, longest;
- longest = 0;
- nmatches = 0;
- found = 0;
- for (c = cmdtab; (p = c->name) != NULL; 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.
- */
- static void
- makeargv(char *line)
- {
- char *cp;
- char **argp = margv;
- margc = 0;
- if ((cp = strchr(line, '\n')) != NULL)
- *cp = '\0';
- for (cp = line; margc < MAX_MARGV - 1 && *cp != '\0';) {
- 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;
- }
- static void
- quit(int argc __unused, char *argv[] __unused)
- {
- exit(txrx_error);
- }
- /*
- * Help command.
- */
- static void
- help(int argc, char *argv[])
- {
- 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", (int)HELPINDENT, c->name, c->help);
- printf("\n[-] : You shouldn't use these ones anymore.\n");
- printf("[*] : RFC2347 options support required.\n");
- printf("[**] : Non-standard RFC2347 option.\n");
- return;
- }
- while (--argc > 0) {
- 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);
- }
- }
- static void
- setverbose(int argc __unused, char *argv[] __unused)
- {
- verbose = !verbose;
- printf("Verbose mode %s.\n", verbose ? "on" : "off");
- }
- static void
- setoptions(int argc, char *argv[])
- {
- if (argc == 2) {
- if (strcasecmp(argv[1], "enable") == 0 ||
- strcasecmp(argv[1], "on") == 0) {
- options_extra_enabled = 1;
- options_rfc_enabled = 1;
- }
- if (strcasecmp(argv[1], "disable") == 0 ||
- strcasecmp(argv[1], "off") == 0) {
- options_extra_enabled = 0;
- options_rfc_enabled = 0;
- }
- if (strcasecmp(argv[1], "extra") == 0)
- options_extra_enabled = !options_extra_enabled;
- }
- printf("Support for RFC2347 style options are now %s.\n",
- options_rfc_enabled ? "enabled" : "disabled");
- printf("Support for non-RFC defined options are now %s.\n",
- options_extra_enabled ? "enabled" : "disabled");
- printf("\nThe following options are available:\n"
- "\toptions on : enable support for RFC2347 style options\n"
- "\toptions off : disable support for RFC2347 style options\n"
- "\toptions extra : toggle support for non-RFC defined options\n"
- );
- }
- static void
- setrollover(int argc, char *argv[])
- {
- if (argc == 2) {
- if (strcasecmp(argv[1], "never") == 0 ||
- strcasecmp(argv[1], "none") == 0) {
- free(options[OPT_ROLLOVER].o_request);
- options[OPT_ROLLOVER].o_request = NULL;
- }
- if (strcasecmp(argv[1], "1") == 0) {
- free(options[OPT_ROLLOVER].o_request);
- options[OPT_ROLLOVER].o_request = strdup("1");
- }
- if (strcasecmp(argv[1], "0") == 0) {
- free(options[OPT_ROLLOVER].o_request);
- options[OPT_ROLLOVER].o_request = strdup("0");
- }
- }
- printf("Support for the rollover options is %s.\n",
- options[OPT_ROLLOVER].o_request != NULL ? "enabled" : "disabled");
- if (options[OPT_ROLLOVER].o_request != NULL)
- printf("Block rollover will be to block %s.\n",
- options[OPT_ROLLOVER].o_request);
- printf("\nThe following rollover options are available:\n"
- "\trollover 0 : rollover to block zero (default)\n"
- "\trollover 1 : rollover to block one\n"
- "\trollover never : do not support the rollover option\n"
- "\trollover none : do not support the rollover option\n"
- );
- }
- static void
- setdebug(int argc, char *argv[])
- {
- int i;
- if (argc != 1) {
- i = 1;
- while (i < argc)
- debug ^= debug_find(argv[i++]);
- }
- printf("The following debugging is enabled: %s\n", debug_show(debug));
- printf("\nThe following debugs are available:\n");
- i = 0;
- while (debugs[i].name != NULL) {
- printf("\t%s\t%s\n", debugs[i].name, debugs[i].desc);
- i++;
- }
- }
- static void
- setblocksize(int argc, char *argv[])
- {
- if (!options_rfc_enabled)
- printf("RFC2347 style options are not enabled "
- "(but proceeding anyway)\n");
- if (argc != 1) {
- int size = atoi(argv[1]);
- size_t max;
- u_long maxdgram;
- max = sizeof(maxdgram);
- if (sysctlbyname("net.inet.udp.maxdgram",
- &maxdgram, &max, NULL, 0) < 0) {
- perror("sysctl: net.inet.udp.maxdgram");
- return;
- }
- if (size < BLKSIZE_MIN || size > BLKSIZE_MAX) {
- printf("Blocksize should be between %d and %d bytes.\n",
- BLKSIZE_MIN, BLKSIZE_MAX);
- return;
- } else if (size > (int)maxdgram - 4) {
- printf("Blocksize can't be bigger than %ld bytes due "
- "to the net.inet.udp.maxdgram sysctl limitation.\n",
- maxdgram - 4);
- asprintf(&options[OPT_BLKSIZE].o_request,
- "%ld", maxdgram - 4);
- } else {
- asprintf(&options[OPT_BLKSIZE].o_request, "%d", size);
- }
- }
- printf("Blocksize is now %s bytes.\n", options[OPT_BLKSIZE].o_request);
- }
- static void
- setblocksize2(int argc, char *argv[])
- {
- if (!options_rfc_enabled || !options_extra_enabled)
- printf(
- "RFC2347 style or non-RFC defined options are not enabled "
- "(but proceeding anyway)\n");
- if (argc != 1) {
- int size = atoi(argv[1]);
- int i;
- size_t max;
- u_long maxdgram;
- int sizes[] = {
- 8, 16, 32, 64, 128, 256, 512, 1024,
- 2048, 4096, 8192, 16384, 32768, 0
- };
- max = sizeof(maxdgram);
- if (sysctlbyname("net.inet.udp.maxdgram",
- &maxdgram, &max, NULL, 0) < 0) {
- perror("sysctl: net.inet.udp.maxdgram");
- return;
- }
- for (i = 0; sizes[i] != 0; i++) {
- if (sizes[i] == size) break;
- }
- if (sizes[i] == 0) {
- printf("Blocksize2 should be a power of two between "
- "8 and 32768.\n");
- return;
- }
- if (size < BLKSIZE_MIN || size > BLKSIZE_MAX) {
- printf("Blocksize2 should be between "
- "%d and %d bytes.\n", BLKSIZE_MIN, BLKSIZE_MAX);
- return;
- } else if (size > (int)maxdgram - 4) {
- printf("Blocksize2 can't be bigger than %ld bytes due "
- "to the net.inet.udp.maxdgram sysctl limitation.\n",
- maxdgram - 4);
- for (i = 0; sizes[i+1] != 0; i++) {
- if ((int)maxdgram < sizes[i+1]) break;
- }
- asprintf(&options[OPT_BLKSIZE2].o_request,
- "%d", sizes[i]);
- } else {
- asprintf(&options[OPT_BLKSIZE2].o_request, "%d", size);
- }
- }
- printf("Blocksize2 is now %s bytes.\n",
- options[OPT_BLKSIZE2].o_request);
- }
- static void
- setpacketdrop(int argc, char *argv[])
- {
- if (argc != 1)
- packetdroppercentage = atoi(argv[1]);
- printf("Randomly %d in 100 packets will be dropped\n",
- packetdroppercentage);
- }