Date: Wed, 22 Sep 2010 21:54:16 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org Subject: svn commit: r213037 - stable/7/usr.bin/tftp Message-ID: <201009222154.o8MLsGtr045099@svn.freebsd.org>
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Author: marius Date: Wed Sep 22 21:54:16 2010 New Revision: 213037 URL: http://svn.freebsd.org/changeset/base/213037 Log: MFC: r207607, r207621, r209112, r209550, r209551 Go ahead and merge the work edwin@ on tftpd into the tree. It is a lot better than what's in the tree now. Edwin tested it at a prior employer, but can't test it today. I've found that it works a lot better with the various uboot versions that I've used in my embedded work. Here's the pkg-descr from the port that describes the changes: It all started when we got some new routers, which told me the following when trying to upload configuration or download images from it: The TFTP server doesn't support the blocksize option. My curiousity was triggered, it took me some reading of RFCs and other documentation to find out what was possible and what could be done. Was plain TFTP very simple in its handshake, TFTP with options was kind of messy because of its backwards capability: The first packet returned could either be an acknowledgement of options, or the first data packet. Going through the source code of src/libexec/tftpd and going through the code of src/usr.bin/tftp showed that there was a lot of duplicate code, and the addition of options would only increase the amount of duplicate code. After all, both the client and the server can act as a sender and receiver. At the end, it ended up with a nearly complete rewrite of the tftp client and server. It has been tested against the following TFTP clients and servers: - Itself (yay!) - The standard FreeBSD tftp client and server - The Fedora Core 6 tftp client and server - Cisco router tftp client - Extreme Networks tftp client It supports the following RFCs: RFC1350 - THE TFTP PROTOCOL (REVISION 2) RFC2347 - TFTP Option Extension RFC2348 - TFTP Blocksize Option RFC2349 - TFTP Timeout Interval and Transfer Size Options RFC3617 - Uniform Resource Identifier (URI) Scheme and Applicability Statement for the Trivial File Transfer Protocol (TFTP) It supports the following unofficial TFTP Options as described at http://www.compuphase.com/tftp.htm: blksize2 - Block size restricted to powers of 2, excluding protocol headers rollover - Block counter roll-over (roll back to zero or to one) From the tftp program point of view the following things are changed: - New commands: "blocksize", "blocksize2", "rollover" and "options" - Development features: "debug" and "packetdrop" If you try this tftp/tftpd implementation, please let me know if it works (or doesn't work) and against which implementaion so I can get a list of confirmed working systems. Author: Edwin Groothuis <edwin@FreeBSD.org> Added: stable/7/usr.bin/tftp/tftp.h - copied unchanged from r207621, head/usr.bin/tftp/tftp.h Deleted: stable/7/usr.bin/tftp/extern.h stable/7/usr.bin/tftp/tftpsubs.c stable/7/usr.bin/tftp/tftpsubs.h Modified: stable/7/usr.bin/tftp/Makefile stable/7/usr.bin/tftp/main.c stable/7/usr.bin/tftp/tftp.1 stable/7/usr.bin/tftp/tftp.c Directory Properties: stable/7/usr.bin/tftp/ (props changed) Modified: stable/7/usr.bin/tftp/Makefile ============================================================================== --- stable/7/usr.bin/tftp/Makefile Wed Sep 22 21:54:13 2010 (r213036) +++ stable/7/usr.bin/tftp/Makefile Wed Sep 22 21:54:16 2010 (r213037) @@ -1,9 +1,13 @@ # @(#)Makefile 8.1 (Berkeley) 6/6/93 # $FreeBSD$ +CFLAGS=-g -Wall +WARNS= 3 PROG= tftp -SRCS= main.c tftp.c tftpsubs.c +SRCS= main.c tftp.c tftp-utils.c tftp-io.c tftp-file.c tftp-transfer.c tftp-options.c DPADD= ${LIBEDIT} ${LIBTERMCAP} LDADD= -ledit -ltermcap +CFLAGS+=-I${.CURDIR}/../../libexec/tftpd -I${.CURDIR}/../../usr.bin/tftp +.PATH: ${.CURDIR}/../../libexec/tftpd .include <bsd.prog.mk> Modified: stable/7/usr.bin/tftp/main.c ============================================================================== --- stable/7/usr.bin/tftp/main.c Wed Sep 22 21:54:13 2010 (r213036) +++ stable/7/usr.bin/tftp/main.c Wed Sep 22 21:54:16 2010 (r213037) @@ -54,12 +54,14 @@ __FBSDID("$FreeBSD$"); #include <sys/param.h> #include <sys/types.h> #include <sys/socket.h> +#include <sys/sysctl.h> #include <sys/file.h> #include <sys/param.h> +#include <sys/stat.h> #include <netinet/in.h> - #include <arpa/inet.h> +#include <arpa/tftp.h> #include <ctype.h> #include <err.h> @@ -72,119 +74,212 @@ __FBSDID("$FreeBSD$"); #include <string.h> #include <unistd.h> -#include "extern.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 */ -struct sockaddr_storage peeraddr; -int f; -int trace; -int verbose; -int connected; -char mode[32]; -char line[MAXLINE]; -int margc; +static 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 -char *margv[MAX_MARGV]; -jmp_buf toplevel; -volatile int txrx_error; - -void get(int, char **); -void help(int, char **); -void intr(int); -void modecmd(int, char **); -void put(int, char **); -void quit(int, char **); -void setascii(int, char **); -void setbinary(int, char **); -void setpeer0(char *, const char *); -void setpeer(int, char **); -void setrexmt(int, char **); -void settimeout(int, char **); -void settrace(int, char **); -void setverbose(int, char **); -void status(int, char **); +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 getusage(const char *); -static void makeargv(void); -static void putusage(const char *); +static void urihandling(char *URI); +static void getusage(char *); +static void makeargv(char *line); +static void putusage(char *); static void settftpmode(const char *); -char *tail(char *); -struct cmd *getcmd(char *); +static char *tail(char *); +static struct cmd *getcmd(char *); #define HELPINDENT (sizeof("connect")) struct cmd { const char *name; - char *help; void (*handler)(int, char **); + const char *help; }; -char vhelp[] = "toggle verbose mode"; -char thelp[] = "toggle packet tracing"; -char chelp[] = "connect to remote tftp"; -char qhelp[] = "exit tftp"; -char hhelp[] = "print help information"; -char shelp[] = "send file"; -char rhelp[] = "receive file"; -char mhelp[] = "set file transfer mode"; -char sthelp[] = "show current status"; -char xhelp[] = "set per-packet retransmission timeout"; -char ihelp[] = "set total retransmission timeout"; -char ashelp[] = "set mode to netascii"; -char bnhelp[] = "set mode to octet"; - -struct cmd cmdtab[] = { - { "connect", chelp, setpeer }, - { "mode", mhelp, modecmd }, - { "put", shelp, put }, - { "get", rhelp, get }, - { "quit", qhelp, quit }, - { "verbose", vhelp, setverbose }, - { "trace", thelp, settrace }, - { "status", sthelp, status }, - { "binary", bnhelp, setbinary }, - { "ascii", ashelp, setascii }, - { "rexmt", xhelp, setrexmt }, - { "timeout", ihelp, settimeout }, - { "?", hhelp, help }, - { NULL, NULL, NULL } +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, "artifical 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[]) { - f = -1; + + 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(); } -char hostname[MAXHOSTNAMELEN]; +/* + * 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 *options = NULL; + char *mode = "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'; + options = s + 1; + + if (strncmp(options, "mode=", 5) == 0) { + mode = options; + mode += 5; + + for (i = 0; modes[i].m_name != NULL; i++) { + if (strcmp(modes[i].m_name, mode) == 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]; -void -setpeer0(char *host, const char *port) +static void +setpeer0(char *host, const char *lport) { struct addrinfo hints, *res0, *res; int error; - struct sockaddr_storage ss; const char *cause = "unknown"; if (connected) { - close(f); - f = -1; + close(peer); + peer = -1; } connected = 0; @@ -193,9 +288,9 @@ setpeer0(char *host, const char *port) hints.ai_socktype = SOCK_DGRAM; hints.ai_protocol = IPPROTO_UDP; hints.ai_flags = AI_CANONNAME; - if (!port) - port = "tftp"; - error = getaddrinfo(host, port, &hints, &res0); + if (!lport) + lport = "tftp"; + error = getaddrinfo(host, lport, &hints, &res0); if (error) { warnx("%s", gai_strerror(error)); return; @@ -204,50 +299,53 @@ setpeer0(char *host, const char *port) for (res = res0; res; res = res->ai_next) { if (res->ai_addrlen > sizeof(peeraddr)) continue; - f = socket(res->ai_family, res->ai_socktype, res->ai_protocol); - if (f < 0) { + peer = socket(res->ai_family, res->ai_socktype, + res->ai_protocol); + if (peer < 0) { cause = "socket"; continue; } - memset(&ss, 0, sizeof(ss)); - ss.ss_family = res->ai_family; - ss.ss_len = res->ai_addrlen; - if (bind(f, (struct sockaddr *)&ss, ss.ss_len) < 0) { + 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(f); - f = -1; + close(peer); + peer = -1; continue; } break; } - if (f < 0) + if (peer < 0) warn("%s", cause); else { /* res->ai_addr <= sizeof(peeraddr) is guaranteed */ - memcpy(&peeraddr, res->ai_addr, res->ai_addrlen); + memcpy(&peer_sock, res->ai_addr, res->ai_addrlen); if (res->ai_canonname) { - (void) strlcpy(hostname, res->ai_canonname, + (void) strncpy(hostname, res->ai_canonname, sizeof(hostname)); } else - (void) strlcpy(hostname, host, sizeof(hostname)); + (void) strncpy(hostname, host, sizeof(hostname)); + hostname[sizeof(hostname)-1] = 0; connected = 1; } freeaddrinfo(res0); } -void +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(); + makeargv(line); argc = margc; argv = margv; } @@ -255,26 +353,14 @@ setpeer(int argc, char *argv[]) printf("usage: %s [host [port]]\n", argv[0]); return; } - if (argc == 3) + if (argc == 3) { + port = argv[2]; setpeer0(argv[1], argv[2]); - else + } else setpeer0(argv[1], NULL); } -struct modes { - const char *m_name; - const char *m_mode; -} modes[] = { - { "ascii", "netascii" }, - { "netascii", "netascii" }, - { "binary", "octet" }, - { "image", "octet" }, - { "octet", "octet" }, -/* { "mail", "mail" }, */ - { 0, 0 } -}; - -void +static void modecmd(int argc, char *argv[]) { struct modes *p; @@ -298,7 +384,7 @@ modecmd(int argc, char *argv[]) printf("usage: %s [", argv[0]); sep = " "; - for (p = modes; p->m_name; p++) { + for (p = modes; p->m_name != NULL; p++) { printf("%s%s", sep, p->m_name); if (*sep == ' ') sep = " | "; @@ -307,14 +393,14 @@ modecmd(int argc, char *argv[]) return; } -void +static void setbinary(int argc __unused, char *argv[] __unused) { settftpmode("octet"); } -void +static void setascii(int argc __unused, char *argv[] __unused) { @@ -324,6 +410,7 @@ setascii(int argc __unused, char *argv[] static void settftpmode(const char *newmode) { + strcpy(mode, newmode); if (verbose) printf("mode set to %s\n", mode); @@ -333,18 +420,20 @@ settftpmode(const char *newmode) /* * Send file(s). */ -void +static void put(int argc, char *argv[]) { - int fd; - int n; - char *cp, *targ; + 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(); + makeargv(line); argc = margc; argv = margv; } @@ -381,10 +470,14 @@ put(int argc, char *argv[]) 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(fd, targ, mode); + cp, hostname, targ, mode); + xmitfile(peer, port, fd, targ, mode); return; } /* this assumes the target is a directory */ @@ -398,36 +491,43 @@ put(int argc, char *argv[]) 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(fd, targ, mode); + argv[n], hostname, targ, mode); + xmitfile(peer, port, fd, targ, mode); } } static void -putusage(const char *s) +putusage(char *s) { - printf("usage: %s file [[host:]remotename]\n", 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). */ -void +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(); + makeargv(line); argc = margc; argv = margv; } @@ -438,6 +538,8 @@ get(int argc, char *argv[]) if (!connected) { for (n = 1; n < argc ; n++) if (rindex(argv[n], ':') == 0) { + printf("No remote host specified and " + "no host given for file '%s'\n", argv[n]); getusage(argv[0]); return; } @@ -468,8 +570,8 @@ get(int argc, char *argv[]) } if (verbose) printf("getting from %s:%s to %s [%s]\n", - hostname, src, cp, mode); - recvfile(fd, src, mode); + hostname, src, cp, mode); + recvfile(peer, port, fd, src, mode); break; } cp = tail(src); /* new .. jdg */ @@ -480,30 +582,31 @@ get(int argc, char *argv[]) } if (verbose) printf("getting from %s:%s to %s [%s]\n", - hostname, src, cp, mode); - recvfile(fd, src, mode); + hostname, src, cp, mode); + recvfile(peer, port, fd, src, mode); } } static void -getusage(const char *s) +getusage(char *s) { - printf("usage: %s [host:]file [localname]\n", 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); } -int rexmtval = TIMEOUT; - -void -setrexmt(int argc, char *argv[]) +static void +settimeoutpacket(int argc, char *argv[]) { int t; + char line[MAXLINE]; if (argc < 2) { - strcpy(line, "Rexmt-timeout "); + strcpy(line, "Packet timeout "); printf("(value) "); fgets(&line[strlen(line)], sizeof line - strlen(line), stdin); - makeargv(); + makeargv(line); argc = margc; argv = margv; } @@ -512,24 +615,25 @@ setrexmt(int argc, char *argv[]) return; } t = atoi(argv[1]); - if (t < 0) + if (t < 0) { printf("%s: bad value\n", argv[1]); - else - rexmtval = t; -} + return; + } -int maxtimeout = 5 * TIMEOUT; + settimeouts(t, timeoutnetwork, maxtimeouts); +} -void -settimeout(int argc, char *argv[]) +static void +settimeoutnetwork(int argc, char *argv[]) { int t; + char line[MAXLINE]; if (argc < 2) { - strcpy(line, "Maximum-timeout "); + strcpy(line, "Network timeout "); printf("(value) "); fgets(&line[strlen(line)], sizeof line - strlen(line), stdin); - makeargv(); + makeargv(line); argc = margc; argv = margv; } @@ -538,26 +642,36 @@ settimeout(int argc, char *argv[]) return; } t = atoi(argv[1]); - if (t < 0) + if (t < 0) { printf("%s: bad value\n", argv[1]); - else - maxtimeout = t; + return; + } + + settimeouts(timeoutpacket, t, maxtimeouts); } -void -status(int argc __unused, char *argv[] __unused) +static void +showstatus(int argc __unused, char *argv[] __unused) { - 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); + + 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); } -void +static void intr(int dummy __unused) { @@ -566,7 +680,7 @@ intr(int dummy __unused) longjmp(toplevel, -1); } -char * +static char * tail(char *filename) { char *s; @@ -583,7 +697,7 @@ tail(char *filename) } static const char * -command_prompt(void) +command_prompt() { return ("tftp> "); @@ -602,6 +716,7 @@ command(void) const char *bp; char *cp; int len, num, vrbose; + char line[MAXLINE]; vrbose = isatty(0); if (vrbose) { @@ -623,6 +738,7 @@ command(void) line[len] = '\0'; history(hist, &he, H_ENTER, bp); } else { + line[0] = 0; if (fgets(line, sizeof line , stdin) == 0) { if (feof(stdin)) { exit(txrx_error); @@ -635,7 +751,7 @@ command(void) *cp = '\0'; if (line[0] == 0) continue; - makeargv(); + makeargv(line); if (margc == 0) continue; c = getcmd(margv[0]); @@ -651,7 +767,7 @@ command(void) } } -struct cmd * +static struct cmd * getcmd(char *name) { const char *p, *q; @@ -683,15 +799,15 @@ getcmd(char *name) * Slice a string up into argc/argv. */ static void -makeargv(void) +makeargv(char *line) { char *cp; char **argp = margv; margc = 0; - if ((cp = strchr(line, '\n'))) + if ((cp = strchr(line, '\n')) != NULL) *cp = '\0'; - for (cp = line; margc < MAX_MARGV - 1 && *cp;) { + for (cp = line; margc < MAX_MARGV - 1 && *cp != '\0';) { while (isspace(*cp)) cp++; if (*cp == '\0') @@ -707,16 +823,17 @@ makeargv(void) *argp++ = 0; } -void +static void quit(int argc __unused, char *argv[] __unused) { + exit(txrx_error); } /* * Help command. */ -void +static void help(int argc, char *argv[]) { struct cmd *c; @@ -725,6 +842,10 @@ help(int argc, char *argv[]) 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("[*] : RFC2834 options support required.\n"); + printf("[**] : Non-standard RFC2834 option.\n"); return; } while (--argc > 0) { @@ -732,24 +853,211 @@ help(int argc, char *argv[]) arg = *++argv; c = getcmd(arg); if (c == (struct cmd *)-1) - printf("?Ambiguous help command %s\n", arg); + printf("?Ambiguous help command: %s\n", arg); else if (c == (struct cmd *)0) - printf("?Invalid help command %s\n", arg); + printf("?Invalid help command: %s\n", arg); else printf("%s\n", c->help); } } -void -settrace(int argc __unused, char **argv __unused) +static void +setverbose(int argc __unused, char *argv[] __unused) { - trace = !trace; - printf("Packet tracing %s.\n", trace ? "on" : "off"); -} -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 proceding anyway)\n"); + + if (argc != 1) { + int size = atoi(argv[1]); + size_t max; + char maxbuffer[100]; + int *maxdgram; + + max = sizeof(maxbuffer); + if (sysctlbyname("net.inet.udp.maxdgram", + maxbuffer, &max, NULL, 0) < 0) { + perror("sysctl: net.inet.udp.maxdgram"); + return; + } + maxdgram = (int *)maxbuffer; + + 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 > *maxdgram - 4) { + printf("Blocksize can't be bigger than %d bytes due " + "to the net.inet.udp.maxdgram sysctl limitation.\n", + *maxdgram - 4); + asprintf(&options[OPT_BLKSIZE].o_request, + "%d", *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 proceding anyway)\n"); + + if (argc != 1) { + int size = atoi(argv[1]); + int i; + size_t max; + char maxbuffer[100]; + int *maxdgram; + + int sizes[] = { + 8, 16, 32, 64, 128, 256, 512, 1024, + 2048, 4096, 8192, 16384, 32768, 0 + }; + + max = sizeof(maxbuffer); + if (sysctlbyname("net.inet.udp.maxdgram", + maxbuffer, &max, NULL, 0) < 0) { + perror("sysctl: net.inet.udp.maxdgram"); + return; + } + maxdgram = (int *)maxbuffer; + + 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 " *** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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