Blob


1 /*
2 * Copyright (c) 2021, 2022 Omar Polo <op@omarpolo.com>
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
17 #include "compat.h"
19 #include <sys/ioctl.h>
20 #include <sys/types.h>
21 #include <sys/socket.h>
22 #include <sys/stat.h>
23 #include <sys/wait.h>
25 #include <assert.h>
26 #include <errno.h>
27 #include <fcntl.h>
28 #include <inttypes.h>
29 #include <netdb.h>
30 #include <libgen.h>
31 #include <limits.h>
32 #include <signal.h>
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <string.h>
36 #include <syslog.h>
37 #include <tls.h>
38 #include <unistd.h>
40 #ifdef HAVE_READLINE
41 #include <readline/readline.h>
42 #include <readline/history.h>
43 #endif
45 #ifndef nitems
46 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
47 #endif
49 #include "kami.h"
50 #include "utils.h"
51 #include "log.h"
52 #include "9pclib.h"
54 #define TMPFSTR "/tmp/kamiftp.XXXXXXXXXX"
55 #define TMPFSTRLEN sizeof(TMPFSTR)
57 /* flags */
58 int tls;
59 const char *crtpath;
60 const char *keypath;
62 /* state */
63 struct tls_config *tlsconf;
64 struct tls *ctx;
65 int sock;
66 struct evbuffer *buf;
67 struct evbuffer *dirbuf;
68 uint32_t msize;
69 int bell;
71 volatile sig_atomic_t resized;
72 int tty_p;
73 int tty_width;
74 int xdump;
76 struct progress {
77 uint64_t max;
78 uint64_t done;
79 };
81 int pwdfid;
83 #define ASSERT_EMPTYBUF() assert(EVBUFFER_LENGTH(buf) == 0)
85 #if !HAVE_READLINE
86 char *
87 readline(const char *prompt)
88 {
89 char *ch, *line = NULL;
90 size_t linesize = 0;
91 ssize_t linelen;
93 printf("%s", prompt);
94 fflush(stdout);
96 linelen = getline(&line, &linesize, stdin);
97 if (linelen == -1)
98 return NULL;
100 if ((ch = strchr(line, '\n')) != NULL)
101 *ch = '\0';
102 return line;
105 void
106 add_history(const char *line)
108 return;
110 #endif
112 static char *
113 read_line(const char *prompt)
115 char *line;
117 again:
118 if ((line = readline(prompt)) == NULL)
119 return NULL;
120 /* XXX: trim spaces? */
121 if (*line == '\0') {
122 free(line);
123 goto again;
126 add_history(line);
127 return line;
130 static void
131 spawn(const char *argv0, ...)
133 pid_t pid;
134 size_t i;
135 int status;
136 const char *argv[16], *last;
137 va_list ap;
139 memset(argv, 0, sizeof(argv));
141 va_start(ap, argv0);
142 argv[0] = argv0;
143 for (i = 1; i < nitems(argv); ++i) {
144 last = va_arg(ap, const char *);
145 if (last == NULL)
146 break;
147 argv[i] = last;
149 va_end(ap);
151 assert(last == NULL);
153 switch (pid = fork()) {
154 case -1:
155 err(1, "fork");
156 case 0: /* child */
157 execvp(argv[0], (char *const *)argv);
158 err(1, "execvp");
159 default:
160 waitpid(pid, &status, 0);
164 static void
165 tty_resized(int signo)
167 resized = 1;
170 static void __dead
171 usage(int ret)
173 fprintf(stderr, "usage: %s [-c] [-C cert] [-K key] "
174 "host[:port] [path]\n", getprogname());
175 fprintf(stderr, "kamid suite version " KAMID_VERSION "\n");
176 exit(ret);
179 static int
180 nextfid(void)
182 uint32_t i;
184 for (i = 0; ; ++i) {
185 if (i != pwdfid)
186 return i;
190 static void
191 do_send(void)
193 const void *buf;
194 size_t nbytes;
195 ssize_t r;
197 if (xdump)
198 hexdump("outgoing message", EVBUFFER_DATA(evb),
199 EVBUFFER_LENGTH(evb));
201 while (EVBUFFER_LENGTH(evb) != 0) {
202 buf = EVBUFFER_DATA(evb);
203 nbytes = EVBUFFER_LENGTH(evb);
205 if (ctx == NULL) {
206 r = write(sock, buf, nbytes);
207 if (r == 0 || r == -1)
208 errx(1, "EOF");
209 } else {
210 r = tls_write(ctx, buf, nbytes);
211 if (r == TLS_WANT_POLLIN || r == TLS_WANT_POLLOUT)
212 continue;
213 if (r == -1)
214 errx(1, "tls: %s", tls_error(ctx));
217 evbuffer_drain(evb, r);
221 static void
222 mustread(void *d, size_t len)
224 ssize_t r;
226 while (len != 0) {
227 if (ctx == NULL) {
228 r = read(sock, d, len);
229 if (r == 0 || r == -1)
230 errx(1, "EOF");
231 } else {
232 r = tls_read(ctx, d, len);
233 if (r == TLS_WANT_POLLIN || r == TLS_WANT_POLLOUT)
234 continue;
235 if (r == -1)
236 errx(1, "tls: %s", tls_error(ctx));
239 d += r;
240 len -= r;
244 static void
245 recv_msg(void)
247 uint32_t len, l;
248 char tmp[BUFSIZ];
250 mustread(&len, sizeof(len));
251 len = le32toh(len);
252 if (len < HEADERSIZE)
253 errx(1, "read message of invalid length %d", len);
255 len -= 4; /* skip the length just read */
257 while (len != 0) {
258 l = MIN(len, sizeof(tmp));
259 mustread(tmp, l);
260 len -= l;
261 evbuffer_add(buf, tmp, l);
264 if (xdump)
265 hexdump("incoming packet", EVBUFFER_DATA(buf),
266 EVBUFFER_LENGTH(buf));
269 static uint64_t
270 np_read64(struct evbuffer *buf)
272 uint64_t n;
274 evbuffer_remove(buf, &n, sizeof(n));
275 return le64toh(n);
278 static uint32_t
279 np_read32(struct evbuffer *buf)
281 uint32_t n;
283 evbuffer_remove(buf, &n, sizeof(n));
284 return le32toh(n);
287 static uint16_t
288 np_read16(struct evbuffer *buf)
290 uint16_t n;
292 evbuffer_remove(buf, &n, sizeof(n));
293 return le16toh(n);
296 static uint16_t
297 np_read8(struct evbuffer *buf)
299 uint8_t n;
301 evbuffer_remove(buf, &n, sizeof(n));
302 return n;
305 static char *
306 np_readstr(struct evbuffer *buf)
308 uint16_t len;
309 char *str;
311 len = np_read16(buf);
312 assert(EVBUFFER_LENGTH(buf) >= len);
314 if ((str = calloc(1, len+1)) == NULL)
315 err(1, "calloc");
316 evbuffer_remove(buf, str, len);
317 return str;
320 static void
321 np_read_qid(struct evbuffer *buf, struct qid *qid)
323 assert(EVBUFFER_LENGTH(buf) >= QIDSIZE);
325 qid->type = np_read8(buf);
326 qid->vers = np_read32(buf);
327 qid->path = np_read64(buf);
330 static int
331 np_read_stat(struct evbuffer *buf, struct np_stat *st)
333 uint16_t size;
335 memset(st, 0, sizeof(*st));
337 size = np_read16(buf);
338 if (size > EVBUFFER_LENGTH(buf))
339 return -1;
341 st->type = np_read16(buf);
342 st->dev = np_read32(buf);
343 np_read_qid(buf, &st->qid);
344 st->mode = np_read32(buf);
345 st->atime = np_read32(buf);
346 st->mtime = np_read32(buf);
347 st->length = np_read64(buf);
348 st->name = np_readstr(buf);
349 st->uid = np_readstr(buf);
350 st->gid = np_readstr(buf);
351 st->muid = np_readstr(buf);
353 return 0;
356 static void
357 expect(uint8_t type)
359 uint8_t t;
361 t = np_read8(buf);
362 if (t == type)
363 return;
365 if (t == Rerror) {
366 char *err;
368 /* skip tag */
369 np_read16(buf);
371 err = np_readstr(buf);
372 errx(1, "expected %s, got error %s",
373 pp_msg_type(type), err);
376 errx(1, "expected %s, got msg type %s",
377 pp_msg_type(type), pp_msg_type(t));
380 static void
381 expect2(uint8_t type, uint16_t tag)
383 uint16_t t;
385 expect(type);
387 t = np_read16(buf);
388 if (t == tag)
389 return;
391 errx(1, "expected tag 0x%x, got 0x%x", tag, t);
394 static char *
395 check(uint8_t type, uint16_t tag)
397 uint16_t rtag;
398 uint8_t rtype;
400 rtype = np_read8(buf);
401 rtag = np_read16(buf);
402 if (rtype == type) {
403 if (rtag != tag)
404 errx(1, "expected tag 0x%x, got 0x%x", tag, rtag);
405 return NULL;
408 if (rtype == Rerror)
409 return np_readstr(buf);
411 errx(1, "expected %s, got msg type %s",
412 pp_msg_type(type), pp_msg_type(rtype));
415 static void
416 do_version(void)
418 char *version;
420 tversion(VERSION9P, MSIZE9P);
421 do_send();
422 recv_msg();
423 expect2(Rversion, NOTAG);
425 msize = np_read32(buf);
426 version = np_readstr(buf);
428 if (msize > MSIZE9P)
429 errx(1, "got unexpected msize: %d", msize);
430 if (strcmp(version, VERSION9P))
431 errx(1, "unexpected 9p version: %s", version);
433 free(version);
434 ASSERT_EMPTYBUF();
437 static void
438 do_attach(const char *path)
440 const char *user;
441 struct qid qid;
443 if (path == NULL)
444 path = "/";
445 if ((user = getenv("USER")) == NULL)
446 user = "flan";
448 tattach(pwdfid, NOFID, user, path);
449 do_send();
450 recv_msg();
451 expect2(Rattach, iota_tag);
452 np_read_qid(buf, &qid);
454 ASSERT_EMPTYBUF();
457 static uint32_t
458 do_open(uint32_t fid, uint8_t mode)
460 struct qid qid;
461 uint32_t iounit;
463 topen(fid, mode);
464 do_send();
465 recv_msg();
466 expect2(Ropen, iota_tag);
468 np_read_qid(buf, &qid);
469 iounit = np_read32(buf);
471 ASSERT_EMPTYBUF();
473 return iounit;
476 static uint32_t
477 do_create(uint32_t fid, const char *name, uint32_t perm, uint8_t mode)
479 struct qid qid;
480 uint32_t iounit;
482 tcreate(fid, name, perm, mode);
483 do_send();
484 recv_msg();
485 expect2(Rcreate, iota_tag);
487 np_read_qid(buf, &qid);
488 iounit = np_read32(buf);
490 ASSERT_EMPTYBUF();
492 return iounit;
495 static void
496 do_clunk(uint32_t fid)
498 tclunk(fid);
499 do_send();
500 recv_msg();
501 expect2(Rclunk, iota_tag);
503 ASSERT_EMPTYBUF();
506 static char *
507 dup_fid(int fid, int nfid)
509 uint16_t nwqid;
510 char *errstr;
512 twalk(fid, nfid, NULL, 0);
513 do_send();
514 recv_msg();
516 if ((errstr = check(Rwalk, iota_tag)) != NULL)
517 return errstr;
519 nwqid = np_read16(buf);
520 assert(nwqid == 0);
522 ASSERT_EMPTYBUF();
524 return NULL;
527 static char *
528 walk_path(int fid, int newfid, const char *path, int *missing,
529 struct qid *qid)
531 char *wnames[MAXWELEM], *p, *t, *errstr;
532 size_t nwname, i;
533 uint16_t nwqid;
535 if ((p = strdup(path)) == NULL)
536 err(1, "strdup");
537 t = p;
539 /* strip initial ./ */
540 if (t[0] == '.' && t[1] == '/')
541 t += 2;
543 for (nwname = 0; nwname < nitems(wnames) &&
544 (wnames[nwname] = strsep(&t, "/")) != NULL;) {
545 if (*wnames[nwname] != '\0')
546 nwname++;
549 twalk(fid, newfid, (const char **)wnames, nwname);
550 do_send();
551 recv_msg();
553 *missing = nwname;
554 if ((errstr = check(Rwalk, iota_tag)) != NULL) {
555 free(p);
556 return errstr;
559 nwqid = np_read16(buf);
560 assert(nwqid <= nwname);
562 /* consume all qids */
563 for (i = 0; i < nwqid; ++i)
564 np_read_qid(buf, qid);
566 free(p);
568 *missing = nwname - nwqid;
569 return NULL;
572 static void
573 do_stat(int fid, struct np_stat *st)
575 tstat(fid);
576 do_send();
577 recv_msg();
578 expect2(Rstat, iota_tag);
580 if (np_read_stat(buf, st) == -1)
581 errx(1, "invalid stat struct read");
583 ASSERT_EMPTYBUF();
586 static char *
587 do_wstat(int fid, const struct np_stat *st)
589 char *errstr;
591 twstat(fid, st);
592 do_send();
593 recv_msg();
595 if ((errstr = check(Rwstat, iota_tag)) != NULL)
596 return errstr;
598 ASSERT_EMPTYBUF();
600 return NULL;
603 static size_t
604 do_read(int fid, uint64_t off, uint32_t count, void *data)
606 uint32_t r;
608 tread(fid, off, count);
609 do_send();
610 recv_msg();
611 expect2(Rread, iota_tag);
613 r = np_read32(buf);
614 assert(r == EVBUFFER_LENGTH(buf));
615 assert(r <= count);
616 evbuffer_remove(buf, data, r);
618 ASSERT_EMPTYBUF();
620 return r;
623 static size_t
624 do_write(int fid, uint64_t off, uint32_t count, void *data)
626 uint32_t r;
628 twrite(fid, off, data, count);
629 do_send();
630 recv_msg();
631 expect2(Rwrite, iota_tag);
633 r = np_read32(buf);
634 assert(r <= count);
636 ASSERT_EMPTYBUF();
638 return r;
641 static void
642 draw_progress(const char *pre, const struct progress *p)
644 struct winsize ws;
645 int i, l, w;
646 double perc;
648 if (xdump)
649 return;
651 perc = 100.0 * p->done / p->max;
652 if (!tty_p) {
653 fprintf(stderr, "%s: %d%%\n", pre, (int)perc);
654 return;
657 if (resized) {
658 resized = 0;
660 if (ioctl(0, TIOCGWINSZ, &ws) == -1)
661 return;
662 tty_width = ws.ws_col;
664 w = tty_width;
666 if (pre == NULL ||
667 ((l = printf("\r%s ", pre)) == -1 || l >= w))
668 return;
670 w -= l + 2 + 5; /* 2 for |, 5 for percentage + \n */
671 if (w < 0) {
672 printf("%4d%%\n", (int)perc);
673 return;
676 printf("|");
678 l = w * MIN(100.0, perc) / 100.0;
679 for (i = 0; i < l; i++)
680 printf("*");
681 for (; i < w; i++)
682 printf(" ");
683 printf("|%4d%%", (int)perc);
685 fflush(stdout);
688 static void
689 fetch_fid(int fid, int fd, const char *name)
691 struct progress p = {0};
692 struct np_stat st;
693 size_t r;
694 char buf[BUFSIZ];
696 do_stat(fid, &st);
697 do_open(fid, KOREAD);
699 p.max = st.length;
700 for (;;) {
701 size_t off;
702 ssize_t nw;
704 r = do_read(fid, p.done, sizeof(buf), buf);
705 if (r == 0)
706 break;
708 for (off = 0; off < r; off += nw)
709 if ((nw = write(fd, buf + off, r - off)) == 0 ||
710 nw == -1)
711 err(1, "write");
713 p.done += r;
714 draw_progress(name, &p);
716 #if 0
717 /* throttle, for debugging purpose */
719 struct timespec ts = { 0, 500000000 };
720 nanosleep(&ts, NULL);
722 #endif
725 putchar('\n');
727 do_clunk(fid);
730 static void
731 send_fid(int fid, const char *fnam, int open_flags, int fd, const char *name)
733 struct progress p = {0};
734 struct stat sb;
735 ssize_t r;
736 size_t w;
737 char buf[BUFSIZ];
739 if (fstat(fd, &sb) == -1)
740 err(1, "fstat");
742 if (fnam != NULL)
743 do_create(fid, fnam, 0644, KOWRITE);
744 else
745 do_open(fid, open_flags | KOWRITE);
747 p.max = sb.st_size;
748 for (;;) {
749 r = read(fd, buf, sizeof(buf));
750 if (r == 0)
751 break;
752 if (r == -1)
753 err(1, "read");
755 w = do_write(fid, p.done, r, buf);
756 p.done += w;
758 draw_progress(name, &p);
760 #if 0
761 /* throttle, for debugging purpose */
763 struct timespec ts = { 0, 500000000 };
764 nanosleep(&ts, NULL);
766 #endif
769 putchar('\n');
770 do_clunk(fid);
773 static int
774 woc_file(int fd, const char *prompt, const char *path)
776 struct qid qid;
777 const char *n = NULL;
778 char *errstr;
779 int nfid, miss;
781 nfid = nextfid();
782 errstr = walk_path(pwdfid, nfid, path, &miss, &qid);
783 if (errstr != NULL && miss > 1) {
784 printf("%s: %s\n", path, errstr);
785 free(errstr);
786 return -1;
789 if (errstr != NULL || miss == 1) {
790 char p[PATH_MAX], *dn;
792 /*
793 * If it's only one component missing (the file name), walk
794 * to the parent directory and try to create the file.
795 */
797 if (strlcpy(p, path, sizeof(p)) >= sizeof(p)) {
798 printf("path too long: %s\n", path);
799 return -1;
801 dn = dirname(p);
803 if (!strcmp(dn, ".")) {
804 errstr = dup_fid(pwdfid, nfid);
805 miss = 0;
806 } else
807 errstr = walk_path(pwdfid, nfid, dn, &miss, &qid);
809 if (errstr != NULL) {
810 printf("%s: %s\n", dn, errstr);
811 free(errstr);
812 return -1;
815 if (miss != 0) {
816 printf("%s: not a directory\n", dn);
817 return -1;
820 if ((n = strrchr(path, '/')) != NULL)
821 n++;
822 else
823 n = path;
826 free(errstr);
828 if (miss > 1) {
829 printf("can't create %s: missing %d path component(s)\n",
830 path, miss);
831 return -1;
834 send_fid(nfid, n, KOTRUNC, fd, prompt);
835 return 0;
838 static void
839 do_tls_connect(const char *host, const char *port)
841 int handshake;
843 if ((tlsconf = tls_config_new()) == NULL)
844 fatalx("tls_config_new");
845 tls_config_insecure_noverifycert(tlsconf);
846 tls_config_insecure_noverifyname(tlsconf);
847 if (tls_config_set_keypair_file(tlsconf, crtpath, keypath) == -1)
848 fatalx("can't load certs (%s, %s)", crtpath, keypath);
850 if ((ctx = tls_client()) == NULL)
851 fatal("tls_client");
852 if (tls_configure(ctx, tlsconf) == -1)
853 fatalx("tls_configure: %s", tls_error(ctx));
855 if (tls_connect(ctx, host, port) == -1)
856 fatalx("can't connect to %s:%s: %s", host, port,
857 tls_error(ctx));
859 for (handshake = 0; !handshake;) {
860 switch (tls_handshake(ctx)) {
861 case -1:
862 fatalx("tls_handshake: %s", tls_error(ctx));
863 case 0:
864 handshake = 1;
865 break;
870 static void
871 do_ctxt_connect(const char *host, const char *port)
873 struct addrinfo hints, *res, *res0;
874 int error, saved_errno;
875 const char *cause = NULL;
877 memset(&hints, 0, sizeof(hints));
878 hints.ai_family = AF_UNSPEC;
879 hints.ai_socktype = SOCK_STREAM;
880 error = getaddrinfo(host, port, &hints, &res0);
881 if (error)
882 errx(1, "%s", gai_strerror(error));
884 sock = -1;
885 for (res = res0; res != NULL; res = res->ai_next) {
886 sock = socket(res->ai_family, res->ai_socktype|SOCK_CLOEXEC,
887 res->ai_protocol);
888 if (sock == -1) {
889 cause = "socket";
890 continue;
893 if (connect(sock, res->ai_addr, res->ai_addrlen) == -1) {
894 cause = "connect";
895 saved_errno = errno;
896 close(sock);
897 errno = saved_errno;
898 sock = -1;
899 continue;
902 break;
905 if (sock == -1)
906 err(1, "%s", cause);
907 freeaddrinfo(res0);
910 static void
911 do_connect(const char *connspec, const char *path)
913 char *host, *colon;
914 const char *port;
916 host = xstrdup(connspec);
917 if ((colon = strchr(host, ':')) != NULL) {
918 *colon = '\0';
919 port = ++colon;
920 } else
921 port = "1337";
923 printf("connecting to %s:%s...", host, port);
924 fflush(stdout);
926 if (tls)
927 do_tls_connect(host, port);
928 else
929 do_ctxt_connect(host, port);
931 printf(" done!\n");
933 do_version();
934 do_attach(path);
936 free(host);
939 static int
940 tmp_file(char sfn[TMPFSTRLEN])
942 int tmpfd;
944 strlcpy(sfn, TMPFSTR, TMPFSTRLEN);
945 if ((tmpfd = mkstemp(sfn)) == -1) {
946 warn("mkstemp %s", sfn);
947 return -1;
950 /* set the close-on-exec flag */
951 if (fcntl(tmpfd, F_SETFD, FD_CLOEXEC) == -1) {
952 warn("fcntl");
953 close(tmpfd);
954 return -1;
957 return tmpfd;
960 static inline const char *
961 pp_perm(uint8_t x)
963 switch (x & 0x7) {
964 case 0x0:
965 return "---";
966 case 0x1:
967 return "--x";
968 case 0x2:
969 return "-w-";
970 case 0x3:
971 return "-wx";
972 case 0x4:
973 return "r--";
974 case 0x5:
975 return "r-x";
976 case 0x6:
977 return "rw-";
978 case 0x7:
979 return "rwx";
980 default:
981 /* unreachable, just for the compiler' happiness */
982 return "???";
986 static inline void
987 prepare_wstat(struct np_stat *st)
989 memset(st, 0xFF, sizeof(*st));
990 st->name = NULL;
991 st->uid = NULL;
992 st->gid = NULL;
993 st->muid = NULL;
996 static void
997 cmd_bell(int argc, const char **argv)
999 if (argc == 0) {
1000 bell = !bell;
1001 if (bell)
1002 puts("bell mode enabled");
1003 else
1004 puts("bell mode disabled");
1005 return;
1008 if (argc != 1)
1009 goto usage;
1011 if (!strcmp(*argv, "on")) {
1012 bell = 1;
1013 puts("bell mode enabled");
1014 return;
1017 if (!strcmp(*argv, "off")) {
1018 bell = 0;
1019 puts("bell mode disabled");
1020 return;
1023 usage:
1024 printf("bell [on | off]\n");
1027 static void
1028 cmd_bye(int argc, const char **argv)
1030 log_warnx("bye\n");
1031 exit(0);
1034 static void
1035 cmd_cd(int argc, const char **argv)
1037 struct qid qid;
1038 int nfid, miss;
1039 char *errstr;
1041 if (argc != 1) {
1042 printf("usage: cd remote-path\n");
1043 return;
1046 nfid = nextfid();
1047 errstr = walk_path(pwdfid, nfid, argv[0], &miss, &qid);
1048 if (errstr != NULL) {
1049 printf("%s: %s\n", argv[0], errstr);
1050 free(errstr);
1051 return;
1054 if (miss != 0 || !(qid.type & QTDIR)) {
1055 printf("%s: not a directory\n", argv[0]);
1056 if (miss == 0)
1057 do_clunk(nfid);
1058 return;
1061 do_clunk(pwdfid);
1062 pwdfid = nfid;
1065 static void
1066 cmd_edit(int argc, const char **argv)
1068 struct qid qid;
1069 int nfid, tmpfd, miss;
1070 char sfn[TMPFSTRLEN], p[PATH_MAX], *name, *errstr;
1071 const char *ed;
1073 if (argc != 1) {
1074 puts("usage: edit file");
1075 return;
1078 if ((ed = getenv("VISUAL")) == NULL &&
1079 (ed = getenv("EDITOR")) == NULL)
1080 ed = "ed";
1082 nfid = nextfid();
1083 errstr = walk_path(pwdfid, nfid, *argv, &miss, &qid);
1084 if (errstr != NULL) {
1085 printf("%s: %s\n", *argv, errstr);
1086 free(errstr);
1087 return;
1090 if (miss != 0 || qid.type != 0) {
1091 printf("%s: not a file\n", *argv);
1092 if (miss == 0)
1093 do_clunk(nfid);
1094 return;
1097 if ((tmpfd = tmp_file(sfn)) == -1) {
1098 do_clunk(nfid);
1099 return;
1102 strlcpy(p, *argv, sizeof(p));
1103 name = basename(p);
1105 fetch_fid(nfid, tmpfd, name);
1106 close(tmpfd);
1108 spawn(ed, sfn, NULL);
1111 * Re-open the file because it's not guaranteed that the
1112 * file descriptor tmpfd is still associated with the file
1113 * pointed by sfn: it's not uncommon for editor to write
1114 * a backup file and then rename(2) it to the file name.
1116 if ((tmpfd = open(sfn, O_RDONLY)) == -1) {
1117 warn("can't open %s", sfn);
1118 goto end;
1121 woc_file(tmpfd, *argv, name);
1122 close(tmpfd);
1124 end:
1125 unlink(sfn);
1128 static void
1129 cmd_get(int argc, const char **argv)
1131 struct qid qid;
1132 const char *l;
1133 char *errstr;
1134 int nfid, fd, miss;
1136 if (argc != 1 && argc != 2) {
1137 printf("usage: get remote-file [local-file]\n");
1138 return;
1141 if (argc == 2)
1142 l = argv[1];
1143 else if ((l = strrchr(argv[0], '/')) != NULL)
1144 l++; /* skip / */
1145 else
1146 l = argv[0];
1148 nfid = nextfid();
1149 errstr = walk_path(pwdfid, nfid, argv[0], &miss, &qid);
1150 if (errstr != NULL) {
1151 printf("%s: %s\n", argv[0], errstr);
1152 free(errstr);
1153 return;
1156 if (miss != 0 || qid.type != 0) {
1157 printf("%s: not a file\n", argv[0]);
1158 if (miss == 0)
1159 do_clunk(nfid);
1160 return;
1163 if ((fd = open(l, O_WRONLY|O_CREAT|O_TRUNC|O_CLOEXEC, 0644)) == -1) {
1164 warn("can't open %s", l);
1165 do_clunk(nfid);
1166 return;
1169 fetch_fid(nfid, fd, l);
1170 close(fd);
1173 static void
1174 cmd_hexdump(int argc, const char **argv)
1176 if (argc == 0) {
1177 xdump = !xdump;
1178 if (xdump)
1179 puts("hexdump mode enabled");
1180 else
1181 puts("hexdump mode disabled");
1182 return;
1185 if (argc > 1)
1186 goto usage;
1188 if (!strcmp(*argv, "on")) {
1189 xdump = 1;
1190 puts("hexdump mode enabled");
1191 return;
1194 if (!strcmp(*argv, "off")) {
1195 xdump = 0;
1196 puts("hexdump mode disabled");
1197 return;
1200 usage:
1201 puts("usage: hexdump [on | off]");
1204 static void
1205 cmd_lcd(int argc, const char **argv)
1207 const char *dir;
1209 if (argc > 1) {
1210 printf("usage: lcd [local-directory]\n");
1211 return;
1214 if (argc == 1)
1215 dir = *argv;
1217 if (argc == 0 && (dir = getenv("HOME")) == NULL) {
1218 printf("HOME is not defined\n");
1219 return;
1222 if (chdir(dir) == -1)
1223 printf("cd: %s: %s\n", dir, strerror(errno));
1226 static void
1227 cmd_lpwd(int argc, const char **argv)
1229 char path[PATH_MAX];
1231 if (argc != 0) {
1232 printf("usage: lpwd\n");
1233 return;
1236 if (getcwd(path, sizeof(path)) == NULL) {
1237 printf("lpwd: %s\n", strerror(errno));
1238 return;
1241 printf("%s\n", path);
1244 static void
1245 cmd_ls(int argc, const char **argv)
1247 struct np_stat st;
1248 time_t now, mtime;
1249 struct tm *tm;
1250 uint64_t off = 0;
1251 uint32_t len;
1252 int nfid;
1253 const char *timfmt;
1254 char fmt[FMT_SCALED_STRSIZE], tim[13], *errstr;
1256 if (argc != 0) {
1257 printf("ls don't take arguments (yet)\n");
1258 return;
1261 now = time(NULL);
1263 nfid = nextfid();
1264 if ((errstr = dup_fid(pwdfid, nfid)) != NULL) {
1265 printf(".: %s\n", errstr);
1266 free(errstr);
1267 return;
1270 do_open(nfid, KOREAD);
1272 evbuffer_drain(dirbuf, EVBUFFER_LENGTH(dirbuf));
1274 for (;;) {
1275 tread(nfid, off, BUFSIZ);
1276 do_send();
1277 recv_msg();
1278 expect2(Rread, iota_tag);
1280 len = np_read32(buf);
1281 if (len == 0)
1282 break;
1284 evbuffer_add_buffer(dirbuf, buf);
1285 off += len;
1287 ASSERT_EMPTYBUF();
1290 while (EVBUFFER_LENGTH(dirbuf) != 0) {
1291 if (np_read_stat(dirbuf, &st) == -1)
1292 errx(1, "invalid stat struct read");
1294 if (fmt_scaled(st.length, fmt) == -1)
1295 strlcpy(fmt, "xxx", sizeof(fmt));
1297 mtime = st.mtime;
1299 if (now > mtime && (now - mtime) < 365/2 * 24 * 12 * 60)
1300 timfmt = "%b %e %R";
1301 else
1302 timfmt = "%b %e %Y";
1304 if ((tm = localtime(&mtime)) == NULL ||
1305 strftime(tim, sizeof(tim), timfmt, tm) == 0)
1306 strlcpy(tim, "unknown", sizeof(tim));
1308 if (st.qid.type & QTDIR)
1309 printf("d");
1310 else
1311 printf("-");
1312 printf("%s", pp_perm(st.mode >> 6));
1313 printf("%s", pp_perm(st.mode >> 3));
1314 printf("%s", pp_perm(st.mode));
1315 printf(" %8s %12s %s%s\n", fmt, tim, st.name,
1316 st.qid.type & QTDIR ? "/" : "");
1318 free(st.name);
1319 free(st.uid);
1320 free(st.gid);
1321 free(st.muid);
1324 do_clunk(nfid);
1327 static void
1328 cmd_page(int argc, const char **argv)
1330 struct qid qid;
1331 int nfid, tmpfd, miss;
1332 char sfn[TMPFSTRLEN], p[PATH_MAX], *name, *errstr;
1333 const char *pager;
1335 if (argc != 1) {
1336 puts("usage: page file");
1337 return;
1340 if ((pager = getenv("PAGER")) == NULL)
1341 pager = "less";
1343 nfid = nextfid();
1344 errstr = walk_path(pwdfid, nfid, *argv, &miss, &qid);
1345 if (errstr != NULL) {
1346 printf("%s: %s\n", *argv, errstr);
1347 free(errstr);
1348 return;
1351 if (miss != 0 || qid.type != 0) {
1352 printf("%s: not a file\n", *argv);
1353 if (miss == 0)
1354 do_clunk(nfid);
1355 return;
1358 if ((tmpfd = tmp_file(sfn)) == -1) {
1359 do_clunk(nfid);
1360 return;
1363 strlcpy(p, *argv, sizeof(p));
1364 name = basename(p);
1365 fetch_fid(nfid, tmpfd, name);
1366 close(tmpfd);
1367 spawn(pager, sfn, NULL);
1368 unlink(sfn);
1371 static void
1372 cmd_put(int argc, const char **argv)
1374 struct qid qid;
1375 const char *l;
1376 int fd;
1378 if (argc != 1 && argc != 2) {
1379 printf("usage: put local-file [remote-file]\n");
1380 return;
1383 if (argc == 2)
1384 l = argv[1];
1385 else if ((l = strrchr(argv[0], '/')) != NULL)
1386 l++; /* skip / */
1387 else
1388 l = argv[0];
1390 if ((fd = open(argv[0], O_RDONLY)) == -1) {
1391 warn("%s", argv[0]);
1392 return;
1395 woc_file(fd, argv[0], l);
1396 close(fd);
1399 static void
1400 cmd_rename(int argc, const char **argv)
1402 struct np_stat st;
1403 struct qid qid;
1404 char *errstr;
1405 int nfid, miss;
1407 if (argc != 2) {
1408 puts("usage: rename remote-file new-remote-name");
1409 return;
1412 nfid = nextfid();
1413 errstr = walk_path(pwdfid, nfid, argv[0], &miss, &qid);
1414 if (errstr != NULL) {
1415 printf("%s: %s\n", argv[0], errstr);
1416 free(errstr);
1417 return;
1420 if (miss != 0) {
1421 printf("%s: not such file or directory\n", argv[0]);
1422 return;
1425 prepare_wstat(&st);
1426 st.name = (char *)argv[1];
1427 if ((errstr = do_wstat(nfid, &st)) != NULL) {
1428 printf("rename: %s\n", errstr);
1429 free(errstr);
1432 do_clunk(nfid);
1435 static void
1436 cmd_verbose(int argc, const char **argv)
1438 if (argc == 0) {
1439 log_setverbose(!log_getverbose());
1440 if (log_getverbose())
1441 puts("verbose mode enabled");
1442 else
1443 puts("verbose mode disabled");
1444 return;
1447 if (argc != 1)
1448 goto usage;
1450 if (!strcmp(*argv, "on")) {
1451 log_setverbose(1);
1452 puts("verbose mode enabled");
1453 return;
1456 if (!strcmp(*argv, "off")) {
1457 log_setverbose(0);
1458 puts("verbose mode disabled");
1459 return;
1462 usage:
1463 printf("verbose [on | off]\n");
1466 static void
1467 excmd(int argc, const char **argv)
1469 struct cmd {
1470 const char *name;
1471 void (*fn)(int, const char **);
1472 } cmds[] = {
1473 {"bell", cmd_bell},
1474 {"bye", cmd_bye},
1475 {"cd", cmd_cd},
1476 {"edit", cmd_edit},
1477 {"get", cmd_get},
1478 {"hexdump", cmd_hexdump},
1479 {"lcd", cmd_lcd},
1480 {"lpwd", cmd_lpwd},
1481 {"ls", cmd_ls},
1482 {"page", cmd_page},
1483 {"put", cmd_put},
1484 {"quit", cmd_bye},
1485 {"rename", cmd_rename},
1486 {"verbose", cmd_verbose},
1488 size_t i;
1490 if (argc == 0)
1491 return;
1492 for (i = 0; i < nitems(cmds); ++i) {
1493 if (!strcmp(cmds[i].name, *argv)) {
1494 cmds[i].fn(argc-1, argv+1);
1495 return;
1499 log_warnx("unknown command %s", *argv);
1502 int
1503 main(int argc, char **argv)
1505 int ch;
1507 log_init(1, LOG_DAEMON);
1508 log_setverbose(0);
1509 log_procinit(getprogname());
1511 while ((ch = getopt(argc, argv, "C:cK:")) != -1) {
1512 switch (ch) {
1513 case 'C':
1514 crtpath = optarg;
1515 break;
1516 case 'c':
1517 tls = 1;
1518 break;
1519 case 'K':
1520 keypath = optarg;
1521 break;
1522 default:
1523 usage(1);
1526 argc -= optind;
1527 argv += optind;
1529 if (argc == 0)
1530 usage(1);
1532 if (isatty(1)) {
1533 tty_p = 1;
1534 resized = 1;
1535 signal(SIGWINCH, tty_resized);
1538 if ((evb = evbuffer_new()) == NULL)
1539 fatal("evbuffer_new");
1541 if ((buf = evbuffer_new()) == NULL)
1542 fatal("evbuffer_new");
1544 if ((dirbuf = evbuffer_new()) == NULL)
1545 fatal("evbuferr_new");
1547 do_connect(argv[0], argv[1]);
1549 for (;;) {
1550 int argc = 0;
1551 char *line, *argv[16] = {0}, **ap;
1553 if ((line = read_line("kamiftp> ")) == NULL)
1554 break;
1556 for (argc = 0, ap = argv; ap < &argv[15] &&
1557 (*ap = strsep(&line, " \t")) != NULL;) {
1558 if (**ap != '\0')
1559 ap++, argc++;
1561 excmd(argc, (const char **)argv);
1563 if (bell) {
1564 printf("\a");
1565 fflush(stdout);
1568 free(line);
1571 printf("\n");