2 * scp - secure remote copy. This is basically patched BSD rcp which
3 * uses ssh to do the data transfer (instead of using rcmd).
5 * NOTE: This version should NOT be suid root. (This uses ssh to
6 * do the transfer and ssh has the necessary privileges.)
8 * 1995 Timo Rinne <tri@iki.fi>, Tatu Ylonen <ylo@cs.hut.fi>
10 * As far as I am concerned, the code I have written for this software
11 * can be used freely for any purpose. Any derived versions of this
12 * software must be clearly marked as such, and if the derived work is
13 * incompatible with the protocol description in the RFC file, it must be
14 * called by a name other than "ssh" or "Secure Shell".
17 * Copyright (c) 1999 Theo de Raadt. All rights reserved.
18 * Copyright (c) 1999 Aaron Campbell. All rights reserved.
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions
23 * 1. Redistributions of source code must retain the above copyright
24 * notice, this list of conditions and the following disclaimer.
25 * 2. Redistributions in binary form must reproduce the above copyright
26 * notice, this list of conditions and the following disclaimer in the
27 * documentation and/or other materials provided with the distribution.
29 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
30 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
31 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
32 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
33 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
34 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
38 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
44 * Copyright (c) 1983, 1990, 1992, 1993, 1995
45 * The Regents of the University of California. All rights reserved.
47 * Redistribution and use in source and binary forms, with or without
48 * modification, are permitted provided that the following conditions
50 * 1. Redistributions of source code must retain the above copyright
51 * notice, this list of conditions and the following disclaimer.
52 * 2. Redistributions in binary form must reproduce the above copyright
53 * notice, this list of conditions and the following disclaimer in the
54 * documentation and/or other materials provided with the distribution.
55 * 3. All advertising materials mentioning features or use of this software
56 * must display the following acknowledgement:
57 * This product includes software developed by the University of
58 * California, Berkeley and its contributors.
59 * 4. Neither the name of the University nor the names of its contributors
60 * may be used to endorse or promote products derived from this software
61 * without specific prior written permission.
63 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
64 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
65 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
66 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
67 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
68 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
69 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
70 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
71 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
72 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
78 RCSID("$OpenBSD: scp.c,v 1.81 2001/08/29 20:44:03 markus Exp $");
82 #include "pathnames.h"
86 #ifdef HAVE___PROGNAME
87 extern char *__progname;
92 /* For progressmeter() -- number of seconds before xfer considered "stalled" */
94 /* alarm() interval for updating progress meter */
95 #define PROGRESSTIME 1
97 /* Progress meter bar */
99 "************************************************************"\
100 "************************************************************"\
101 "************************************************************"\
102 "************************************************************"
103 #define MAX_BARLENGTH (sizeof(BAR) - 1)
105 /* Visual statistics about files as they are transferred. */
106 void progressmeter(int);
108 /* Returns width of the terminal (for progress meter calculations). */
109 int getttywidth(void);
110 int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc);
112 /* Struct for addargs */
115 /* Time a transfer started. */
116 static struct timeval start;
118 /* Number of bytes of current file transferred so far. */
119 volatile off_t statbytes;
121 /* Total size of current file. */
122 off_t totalbytes = 0;
124 /* Name of current file being transferred. */
127 /* This is set to non-zero to enable verbose mode. */
128 int verbose_mode = 0;
130 /* This is set to zero if the progressmeter is not desired. */
131 int showprogress = 1;
133 /* This is the program to execute for the secured connection. ("ssh" or -S) */
134 char *ssh_program = _PATH_SSH_PROGRAM;
137 * This function executes the given command as the specified user on the
138 * given host. This returns < 0 if execution fails, and >= 0 otherwise. This
139 * assigns the input and output file descriptors on success.
143 do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc)
145 int pin[2], pout[2], reserved[2];
149 "Executing: program %s host %s, user %s, command %s\n",
151 remuser ? remuser : "(unspecified)", cmd);
154 * Reserve two descriptors so that the real pipes won't get
155 * descriptors 0 and 1 because that will screw up dup2 below.
159 /* Create a socket pair for communicating with ssh. */
161 fatal("pipe: %s", strerror(errno));
163 fatal("pipe: %s", strerror(errno));
165 /* Free the reserved descriptors. */
169 /* For a child to execute the command on the remote host using ssh. */
179 args.list[0] = ssh_program;
181 addargs(&args, "-l%s", remuser);
182 addargs(&args, "%s", host);
183 addargs(&args, "%s", cmd);
185 execvp(ssh_program, args.list);
189 /* Parent. Close the other side, and return the local side. */
202 BUF *allocbuf(BUF *, int, int);
206 void run_err(const char *,...);
207 void verifydir(char *);
211 int errs, remin, remout;
212 int pflag, iamremote, iamrecursive, targetshouldbedirectory;
215 char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
218 void rsource(char *, struct stat *);
219 void sink(int, char *[]);
220 void source(int, char *[]);
221 void tolocal(int, char *[]);
222 void toremote(char *, int, char *[]);
230 int ch, fflag, tflag;
235 __progname = get_progname(argv[0]);
238 addargs(&args, "ssh"); /* overwritten with ssh_program */
239 addargs(&args, "-x");
240 addargs(&args, "-oFallBackToRsh no");
243 while ((ch = getopt(argc, argv, "dfprtvBCc:i:P:q46S:o:")) != -1)
245 /* User-visible flags. */
249 addargs(&args, "-%c", ch);
254 addargs(&args, "-%c%s", ch, optarg);
257 addargs(&args, "-p%s", optarg);
260 addargs(&args, "-oBatchmode yes");
269 ssh_program = xstrdup(optarg);
272 addargs(&args, "-v");
279 /* Server options. */
281 targetshouldbedirectory = 1;
283 case 'f': /* "from" */
291 setmode(0, O_BINARY);
300 if ((pwd = getpwuid(userid = getuid())) == NULL)
301 fatal("unknown user %d", (int) userid);
303 if (!isatty(STDERR_FILENO))
306 remin = STDIN_FILENO;
307 remout = STDOUT_FILENO;
310 /* Follow "protocol", send data. */
323 targetshouldbedirectory = 1;
326 /* Command to be executed on remote system using "ssh". */
327 (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s",
328 verbose_mode ? " -v" : "",
329 iamrecursive ? " -r" : "", pflag ? " -p" : "",
330 targetshouldbedirectory ? " -d" : "");
332 (void) signal(SIGPIPE, lostconn);
334 if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */
335 toremote(targ, argc, argv);
337 tolocal(argc, argv); /* Dest is local host. */
338 if (targetshouldbedirectory)
339 verifydir(argv[argc - 1]);
345 toremote(targ, argc, argv)
350 char *bp, *host, *src, *suser, *thost, *tuser;
356 if ((thost = strchr(argv[argc - 1], '@'))) {
359 tuser = argv[argc - 1];
362 else if (!okname(tuser))
365 thost = argv[argc - 1];
369 for (i = 0; i < argc - 1; i++) {
370 src = colon(argv[i]);
371 if (src) { /* remote to remote */
375 host = strchr(argv[i], '@');
376 len = strlen(ssh_program) + strlen(argv[i]) +
377 strlen(src) + (tuser ? strlen(tuser) : 0) +
378 strlen(thost) + strlen(targ) + CMDNEEDS + 32;
382 host = cleanhostname(host);
385 suser = pwd->pw_name;
386 else if (!okname(suser))
389 "%s%s -x -o'FallBackToRsh no' -n "
390 "-l %s %s %s %s '%s%s%s:%s'",
391 ssh_program, verbose_mode ? " -v" : "",
392 suser, host, cmd, src,
393 tuser ? tuser : "", tuser ? "@" : "",
396 host = cleanhostname(argv[i]);
398 "exec %s%s -x -o'FallBackToRsh no' -n %s "
400 ssh_program, verbose_mode ? " -v" : "",
402 tuser ? tuser : "", tuser ? "@" : "",
406 fprintf(stderr, "Executing: %s\n", bp);
409 } else { /* local to remote */
411 len = strlen(targ) + CMDNEEDS + 20;
413 (void) snprintf(bp, len, "%s -t %s", cmd, targ);
414 host = cleanhostname(thost);
415 if (do_cmd(host, tuser, bp, &remin,
433 char *bp, *host, *src, *suser;
435 for (i = 0; i < argc - 1; i++) {
436 if (!(src = colon(argv[i]))) { /* Local to local. */
437 len = strlen(_PATH_CP) + strlen(argv[i]) +
438 strlen(argv[argc - 1]) + 20;
440 (void) snprintf(bp, len, "exec %s%s%s %s %s", _PATH_CP,
441 iamrecursive ? " -r" : "", pflag ? " -p" : "",
442 argv[i], argv[argc - 1]);
444 fprintf(stderr, "Executing: %s\n", bp);
453 if ((host = strchr(argv[i], '@')) == NULL) {
460 suser = pwd->pw_name;
461 else if (!okname(suser))
464 host = cleanhostname(host);
465 len = strlen(src) + CMDNEEDS + 20;
467 (void) snprintf(bp, len, "%s -f %s", cmd, src);
468 if (do_cmd(host, suser, bp, &remin, &remout, argc) < 0) {
474 sink(1, argv + argc - 1);
488 off_t i, amt, result;
489 int fd, haderr, indx;
490 char *last, *name, buf[2048];
493 for (indx = 0; indx < argc; ++indx) {
497 while (len > 1 && name[len-1] == '/')
499 if ((fd = open(name, O_RDONLY, 0)) < 0)
501 if (fstat(fd, &stb) < 0) {
502 syserr: run_err("%s: %s", name, strerror(errno));
505 switch (stb.st_mode & S_IFMT) {
515 run_err("%s: not a regular file", name);
518 if ((last = strrchr(name, '/')) == NULL)
525 * Make it compatible with possible future
526 * versions expecting microseconds.
528 (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n",
529 (u_long) stb.st_mtime,
530 (u_long) stb.st_atime);
531 (void) atomicio(write, remout, buf, strlen(buf));
535 #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
536 #ifdef HAVE_LONG_LONG_INT
537 snprintf(buf, sizeof buf, "C%04o %lld %s\n",
538 (u_int) (stb.st_mode & FILEMODEMASK),
539 (long long) stb.st_size, last);
541 /* XXX: Handle integer overflow? */
542 snprintf(buf, sizeof buf, "C%04o %lu %s\n",
543 (u_int) (stb.st_mode & FILEMODEMASK),
544 (u_long) stb.st_size, last);
548 fprintf(stderr, "Sending file modes: %s", buf);
551 (void) atomicio(write, remout, buf, strlen(buf));
554 if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) {
555 next: (void) close(fd);
559 totalbytes = stb.st_size;
562 /* Keep writing after an error so that we stay sync'd up. */
563 for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
565 if (i + amt > stb.st_size)
566 amt = stb.st_size - i;
568 result = atomicio(read, fd, bp->buf, amt);
570 haderr = result >= 0 ? EIO : errno;
573 (void) atomicio(write, remout, bp->buf, amt);
575 result = atomicio(write, remout, bp->buf, amt);
577 haderr = result >= 0 ? EIO : errno;
584 if (close(fd) < 0 && !haderr)
587 (void) atomicio(write, remout, "", 1);
589 run_err("%s: %s", name, strerror(haderr));
601 char *last, *vect[1], path[1100];
603 if (!(dirp = opendir(name))) {
604 run_err("%s: %s", name, strerror(errno));
607 last = strrchr(name, '/');
613 (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n",
614 (u_long) statp->st_mtime,
615 (u_long) statp->st_atime);
616 (void) atomicio(write, remout, path, strlen(path));
617 if (response() < 0) {
622 (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n",
623 (u_int) (statp->st_mode & FILEMODEMASK), 0, last);
625 fprintf(stderr, "Entering directory: %s", path);
626 (void) atomicio(write, remout, path, strlen(path));
627 if (response() < 0) {
631 while ((dp = readdir(dirp)) != NULL) {
634 if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
636 if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) {
637 run_err("%s/%s: name too long", name, dp->d_name);
640 (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name);
644 (void) closedir(dirp);
645 (void) atomicio(write, remout, "E\n", 2);
661 int amt, count, exists, first, mask, mode, ofd, omode;
663 int setimes, targisdir, wrerrno = 0;
664 char ch, *cp, *np, *targ, *why, *vect[1], buf[2048];
665 struct timeval tv[2];
669 #define SCREWUP(str) do { why = str; goto screwup; } while (0)
671 setimes = targisdir = 0;
676 run_err("ambiguous target");
680 if (targetshouldbedirectory)
683 (void) atomicio(write, remout, "", 1);
684 if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
686 for (first = 1;; first = 0) {
688 if (atomicio(read, remin, cp, 1) <= 0)
691 SCREWUP("unexpected <newline>");
693 if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
694 SCREWUP("lost connection");
696 } while (cp < &buf[sizeof(buf) - 1] && ch != '\n');
699 if (buf[0] == '\01' || buf[0] == '\02') {
701 (void) atomicio(write, STDERR_FILENO,
702 buf + 1, strlen(buf + 1));
709 (void) atomicio(write, remout, "", 1);
719 mtime.tv_sec = strtol(cp, &cp, 10);
720 if (!cp || *cp++ != ' ')
721 SCREWUP("mtime.sec not delimited");
722 mtime.tv_usec = strtol(cp, &cp, 10);
723 if (!cp || *cp++ != ' ')
724 SCREWUP("mtime.usec not delimited");
725 atime.tv_sec = strtol(cp, &cp, 10);
726 if (!cp || *cp++ != ' ')
727 SCREWUP("atime.sec not delimited");
728 atime.tv_usec = strtol(cp, &cp, 10);
729 if (!cp || *cp++ != '\0')
730 SCREWUP("atime.usec not delimited");
731 (void) atomicio(write, remout, "", 1);
734 if (*cp != 'C' && *cp != 'D') {
736 * Check for the case "rcp remote:foo\* local:bar".
737 * In this case, the line "No match." can be returned
738 * by the shell before the rcp command on the remote is
739 * executed so the ^Aerror_message convention isn't
746 SCREWUP("expected control record");
749 for (++cp; cp < buf + 5; cp++) {
750 if (*cp < '0' || *cp > '7')
752 mode = (mode << 3) | (*cp - '0');
755 SCREWUP("mode not delimited");
757 for (size = 0; isdigit(*cp);)
758 size = size * 10 + (*cp++ - '0');
760 SCREWUP("size not delimited");
762 static char *namebuf;
766 need = strlen(targ) + strlen(cp) + 250;
767 if (need > cursize) {
770 namebuf = xmalloc(need);
773 (void) snprintf(namebuf, need, "%s%s%s", targ,
774 *targ ? "/" : "", cp);
779 exists = stat(np, &stb) == 0;
781 int mod_flag = pflag;
783 if (!S_ISDIR(stb.st_mode)) {
788 (void) chmod(np, mode);
790 /* Handle copying from a read-only
793 if (mkdir(np, mode | S_IRWXU) < 0)
796 vect[0] = xstrdup(np);
800 if (utimes(vect[0], tv) < 0)
801 run_err("%s: set times: %s",
802 vect[0], strerror(errno));
805 (void) chmod(vect[0], mode);
812 if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) < 0) {
813 bad: run_err("%s: %s", np, strerror(errno));
816 (void) atomicio(write, remout, "", 1);
817 if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) {
829 for (count = i = 0; i < size; i += 4096) {
835 j = read(remin, cp, amt);
836 if (j == -1 && (errno == EINTR ||
840 run_err("%s", j ? strerror(errno) :
841 "dropped connection");
848 if (count == bp->cnt) {
849 /* Keep reading so we stay sync'd up. */
851 j = atomicio(write, ofd, bp->buf, count);
854 wrerrno = j >= 0 ? EIO : errno;
863 if (count != 0 && wrerr == NO &&
864 (j = atomicio(write, ofd, bp->buf, count)) != count) {
866 wrerrno = j >= 0 ? EIO : errno;
868 if (ftruncate(ofd, size)) {
869 run_err("%s: truncate: %s", np, strerror(errno));
873 if (exists || omode != mode)
875 if (fchmod(ofd, omode))
876 #else /* HAVE_FCHMOD */
877 if (chmod(np, omode))
878 #endif /* HAVE_FCHMOD */
879 run_err("%s: set mode: %s",
880 np, strerror(errno));
882 if (!exists && omode != mode)
884 if (fchmod(ofd, omode & ~mask))
885 #else /* HAVE_FCHMOD */
886 if (chmod(np, omode & ~mask))
887 #endif /* HAVE_FCHMOD */
888 run_err("%s: set mode: %s",
889 np, strerror(errno));
891 if (close(ofd) == -1) {
896 if (setimes && wrerr == NO) {
898 if (utimes(np, tv) < 0) {
899 run_err("%s: set times: %s",
900 np, strerror(errno));
906 run_err("%s: %s", np, strerror(wrerrno));
909 (void) atomicio(write, remout, "", 1);
916 run_err("protocol error: %s", why);
923 char ch, *cp, resp, rbuf[2048];
925 if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp))
935 case 1: /* error, followed by error msg */
936 case 2: /* fatal error, "" */
938 if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
941 } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
944 (void) atomicio(write, STDERR_FILENO, rbuf, cp - rbuf);
956 (void) fprintf(stderr, "usage: scp "
957 "[-pqrvBC46] [-S ssh] [-P port] [-c cipher] [-i identity] "
958 "[-o option] f1 f2\n"
959 " or: scp [options] f1 ... fn directory\n");
964 run_err(const char *fmt,...)
970 if (fp == NULL && !(fp = fdopen(remout, "w")))
972 (void) fprintf(fp, "%c", 0x01);
973 (void) fprintf(fp, "scp: ");
975 (void) vfprintf(fp, fmt, ap);
977 (void) fprintf(fp, "\n");
982 vfprintf(stderr, fmt, ap);
984 fprintf(stderr, "\n");
994 if (!stat(cp, &stb)) {
995 if (S_ISDIR(stb.st_mode))
999 run_err("%s: %s", cp, strerror(errno));
1015 if (!isalpha(c) && !isdigit(c) &&
1016 c != '_' && c != '-' && c != '.' && c != '+')
1021 bad: fprintf(stderr, "%s: invalid user name\n", cp0);
1026 allocbuf(bp, fd, blksize)
1031 #ifdef HAVE_ST_BLKSIZE
1034 if (fstat(fd, &stb) < 0) {
1035 run_err("fstat: %s", strerror(errno));
1038 if (stb.st_blksize == 0)
1041 size = blksize + (stb.st_blksize - blksize % stb.st_blksize) %
1043 #else /* HAVE_ST_BLKSIZE */
1045 #endif /* HAVE_ST_BLKSIZE */
1046 if (bp->cnt >= size)
1048 if (bp->buf == NULL)
1049 bp->buf = xmalloc(size);
1051 bp->buf = xrealloc(bp->buf, size);
1052 memset(bp->buf, 0, size);
1062 write(STDERR_FILENO, "lost connection\n", 16);
1070 updateprogressmeter(int ignore)
1072 int save_errno = errno;
1075 signal(SIGALRM, updateprogressmeter);
1076 alarm(PROGRESSTIME);
1081 foregroundproc(void)
1083 static pid_t pgrp = -1;
1089 #ifdef HAVE_TCGETPGRP
1090 return ((ctty_pgrp = tcgetpgrp(STDOUT_FILENO)) != -1 &&
1093 return ((ioctl(STDOUT_FILENO, TIOCGPGRP, &ctty_pgrp) != -1 &&
1094 ctty_pgrp == pgrp));
1099 progressmeter(int flag)
1101 static const char prefixes[] = " KMGTP";
1102 static struct timeval lastupdate;
1103 static off_t lastsize;
1104 struct timeval now, td, wait;
1105 off_t cursize, abbrevsize;
1107 int ratio, barlength, i, remaining;
1111 (void) gettimeofday(&start, (struct timezone *) 0);
1115 if (foregroundproc() == 0)
1118 (void) gettimeofday(&now, (struct timezone *) 0);
1119 cursize = statbytes;
1120 if (totalbytes != 0) {
1121 ratio = 100.0 * cursize / totalbytes;
1122 ratio = MAX(ratio, 0);
1123 ratio = MIN(ratio, 100);
1127 snprintf(buf, sizeof(buf), "\r%-20.20s %3d%% ", curfile, ratio);
1129 barlength = getttywidth() - 51;
1130 barlength = (barlength <= MAX_BARLENGTH)?barlength:MAX_BARLENGTH;
1131 if (barlength > 0) {
1132 i = barlength * ratio / 100;
1133 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1134 "|%.*s%*s|", i, BAR, barlength - i, "");
1137 abbrevsize = cursize;
1138 while (abbrevsize >= 100000 && i < sizeof(prefixes)) {
1142 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %5lu %c%c ",
1143 (unsigned long) abbrevsize, prefixes[i],
1144 prefixes[i] == ' ' ? ' ' : 'B');
1146 timersub(&now, &lastupdate, &wait);
1147 if (cursize > lastsize) {
1150 if (wait.tv_sec >= STALLTIME) {
1151 start.tv_sec += wait.tv_sec;
1152 start.tv_usec += wait.tv_usec;
1156 timersub(&now, &start, &td);
1157 elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
1160 (statbytes <= 0 || elapsed <= 0.0 || cursize > totalbytes)) {
1161 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1163 } else if (wait.tv_sec >= STALLTIME) {
1164 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1168 remaining = (int)(totalbytes / (statbytes / elapsed) -
1171 remaining = elapsed;
1173 i = remaining / 3600;
1175 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1178 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1180 i = remaining % 3600;
1181 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1182 "%02d:%02d%s", i / 60, i % 60,
1183 (flag != 1) ? " ETA" : " ");
1185 atomicio(write, fileno(stdout), buf, strlen(buf));
1188 mysignal(SIGALRM, updateprogressmeter);
1189 alarm(PROGRESSTIME);
1190 } else if (flag == 1) {
1192 atomicio(write, fileno(stdout), "\n", 1);
1200 struct winsize winsize;
1202 if (ioctl(fileno(stdout), TIOCGWINSZ, &winsize) != -1)
1203 return (winsize.ws_col ? winsize.ws_col : 80);