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 1.55 2001/02/08 14:38:54 deraadt Exp $");
82 #include "pathnames.h"
85 #ifdef HAVE___PROGNAME
86 extern char *__progname;
91 /* For progressmeter() -- number of seconds before xfer considered "stalled" */
94 /* Progress meter bar */
96 "************************************************************"\
97 "************************************************************"\
98 "************************************************************"\
99 "************************************************************"
100 #define MAX_BARLENGTH (sizeof(BAR) - 1)
102 /* Visual statistics about files as they are transferred. */
103 void progressmeter(int);
105 /* Returns width of the terminal (for progress meter calculations). */
106 int getttywidth(void);
107 int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc);
109 /* setup arguments for the call to ssh */
110 void addargs(char *fmt, ...) __attribute__((format(printf, 1, 2)));
112 /* Time a transfer started. */
113 static struct timeval start;
115 /* Number of bytes of current file transferred so far. */
116 volatile u_long statbytes;
118 /* Total size of current file. */
119 off_t totalbytes = 0;
121 /* Name of current file being transferred. */
124 /* This is set to non-zero to enable verbose mode. */
125 int verbose_mode = 0;
127 /* This is set to zero if the progressmeter is not desired. */
128 int showprogress = 1;
130 /* This is the program to execute for the secured connection. ("ssh" or -S) */
131 char *ssh_program = _PATH_SSH_PROGRAM;
133 /* This is the list of arguments that scp passes to ssh */
141 * This function executes the given command as the specified user on the
142 * given host. This returns < 0 if execution fails, and >= 0 otherwise. This
143 * assigns the input and output file descriptors on success.
147 do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc)
149 int pin[2], pout[2], reserved[2];
152 fprintf(stderr, "Executing: program %s host %s, user %s, command %s\n",
153 ssh_program, host, remuser ? remuser : "(unspecified)", cmd);
156 * Reserve two descriptors so that the real pipes won't get
157 * descriptors 0 and 1 because that will screw up dup2 below.
161 /* Create a socket pair for communicating with ssh. */
163 fatal("pipe: %s", strerror(errno));
165 fatal("pipe: %s", strerror(errno));
167 /* Free the reserved descriptors. */
171 /* For a child to execute the command on the remote host using ssh. */
181 args.list[0] = ssh_program;
183 addargs("-l%s", remuser);
187 execvp(ssh_program, args.list);
191 /* Parent. Close the other side, and return the local side. */
204 extern int iamremote;
206 BUF *allocbuf(BUF *, int, int);
211 void run_err(const char *,...);
212 void verifydir(char *);
216 int errs, remin, remout;
217 int pflag, iamremote, iamrecursive, targetshouldbedirectory;
220 char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
223 void rsource(char *, struct stat *);
224 void sink(int, char *[]);
225 void source(int, char *[]);
226 void tolocal(int, char *[]);
227 void toremote(char *, int, char *[]);
235 int ch, fflag, tflag;
240 __progname = get_progname(argv[0]);
243 addargs("ssh"); /* overwritten with ssh_program */
245 addargs("-oFallBackToRsh no");
248 while ((ch = getopt(argc, argv, "dfprtvBCc:i:P:q46S:o:")) != -1)
250 /* User-visible flags. */
259 addargs("-%c%s", ch, optarg);
262 addargs("-p%s", optarg);
265 addargs("-oBatchmode yes");
274 ssh_program = xstrdup(optarg);
283 /* Server options. */
285 targetshouldbedirectory = 1;
287 case 'f': /* "from" */
302 if ((pwd = getpwuid(userid = getuid())) == NULL)
303 fatal("unknown user %d", (int) userid);
305 if (!isatty(STDERR_FILENO))
308 remin = STDIN_FILENO;
309 remout = STDOUT_FILENO;
312 /* Follow "protocol", send data. */
325 targetshouldbedirectory = 1;
328 /* Command to be executed on remote system using "ssh". */
329 (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s",
330 verbose_mode ? " -v" : "",
331 iamrecursive ? " -r" : "", pflag ? " -p" : "",
332 targetshouldbedirectory ? " -d" : "");
334 (void) signal(SIGPIPE, lostconn);
336 if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */
337 toremote(targ, argc, argv);
339 tolocal(argc, argv); /* Dest is local host. */
340 if (targetshouldbedirectory)
341 verifydir(argv[argc - 1]);
350 if (*host == '[' && host[strlen(host) - 1] == ']') {
351 host[strlen(host) - 1] = '\0';
358 toremote(targ, argc, argv)
363 char *bp, *host, *src, *suser, *thost, *tuser;
369 if ((thost = strchr(argv[argc - 1], '@'))) {
372 tuser = argv[argc - 1];
375 else if (!okname(tuser))
378 thost = argv[argc - 1];
382 for (i = 0; i < argc - 1; i++) {
383 src = colon(argv[i]);
384 if (src) { /* remote to remote */
388 host = strchr(argv[i], '@');
389 len = strlen(ssh_program) + strlen(argv[i]) +
390 strlen(src) + (tuser ? strlen(tuser) : 0) +
391 strlen(thost) + strlen(targ) + CMDNEEDS + 32;
395 host = cleanhostname(host);
398 suser = pwd->pw_name;
399 else if (!okname(suser))
402 "%s%s -x -o'FallBackToRsh no' -n "
403 "-l %s %s %s %s '%s%s%s:%s'",
404 ssh_program, verbose_mode ? " -v" : "",
405 suser, host, cmd, src,
406 tuser ? tuser : "", tuser ? "@" : "",
409 host = cleanhostname(argv[i]);
411 "exec %s%s -x -o'FallBackToRsh no' -n %s "
413 ssh_program, verbose_mode ? " -v" : "",
415 tuser ? tuser : "", tuser ? "@" : "",
419 fprintf(stderr, "Executing: %s\n", bp);
422 } else { /* local to remote */
424 len = strlen(targ) + CMDNEEDS + 20;
426 (void) snprintf(bp, len, "%s -t %s", cmd, targ);
427 host = cleanhostname(thost);
428 if (do_cmd(host, tuser, bp, &remin,
446 char *bp, *host, *src, *suser;
448 for (i = 0; i < argc - 1; i++) {
449 if (!(src = colon(argv[i]))) { /* Local to local. */
450 len = strlen(_PATH_CP) + strlen(argv[i]) +
451 strlen(argv[argc - 1]) + 20;
453 (void) snprintf(bp, len, "exec %s%s%s %s %s", _PATH_CP,
454 iamrecursive ? " -r" : "", pflag ? " -p" : "",
455 argv[i], argv[argc - 1]);
457 fprintf(stderr, "Executing: %s\n", bp);
466 if ((host = strchr(argv[i], '@')) == NULL) {
473 suser = pwd->pw_name;
474 else if (!okname(suser))
477 host = cleanhostname(host);
478 len = strlen(src) + CMDNEEDS + 20;
480 (void) snprintf(bp, len, "%s -f %s", cmd, src);
481 if (do_cmd(host, suser, bp, &remin, &remout, argc) < 0) {
487 sink(1, argv + argc - 1);
502 int amt, fd, haderr, indx, result;
503 char *last, *name, buf[2048];
505 for (indx = 0; indx < argc; ++indx) {
508 if ((fd = open(name, O_RDONLY, 0)) < 0)
510 if (fstat(fd, &stb) < 0) {
511 syserr: run_err("%s: %s", name, strerror(errno));
514 switch (stb.st_mode & S_IFMT) {
524 run_err("%s: not a regular file", name);
527 if ((last = strrchr(name, '/')) == NULL)
534 * Make it compatible with possible future
535 * versions expecting microseconds.
537 (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n",
538 (u_long) stb.st_mtime,
539 (u_long) stb.st_atime);
540 (void) atomicio(write, remout, buf, strlen(buf));
544 #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
545 snprintf(buf, sizeof buf, "C%04o %lu %s\n",
546 (u_int) (stb.st_mode & FILEMODEMASK),
547 (u_long) stb.st_size, last);
549 fprintf(stderr, "Sending file modes: %s", buf);
552 (void) atomicio(write, remout, buf, strlen(buf));
555 if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) {
556 next: (void) close(fd);
560 totalbytes = stb.st_size;
563 /* Keep writing after an error so that we stay sync'd up. */
564 for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
566 if (i + amt > stb.st_size)
567 amt = stb.st_size - i;
569 result = atomicio(read, fd, bp->buf, amt);
571 haderr = result >= 0 ? EIO : errno;
574 (void) atomicio(write, remout, bp->buf, amt);
576 result = atomicio(write, remout, bp->buf, amt);
578 haderr = result >= 0 ? EIO : errno;
585 if (close(fd) < 0 && !haderr)
588 (void) atomicio(write, remout, "", 1);
590 run_err("%s: %s", name, strerror(haderr));
602 char *last, *vect[1], path[1100];
604 if (!(dirp = opendir(name))) {
605 run_err("%s: %s", name, strerror(errno));
608 last = strrchr(name, '/');
614 (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n",
615 (u_long) statp->st_mtime,
616 (u_long) statp->st_atime);
617 (void) atomicio(write, remout, path, strlen(path));
618 if (response() < 0) {
623 (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n",
624 (u_int) (statp->st_mode & FILEMODEMASK), 0, last);
626 fprintf(stderr, "Entering directory: %s", path);
627 (void) atomicio(write, remout, path, strlen(path));
628 if (response() < 0) {
632 while ((dp = readdir(dirp))) {
635 if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
637 if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) {
638 run_err("%s/%s: name too long", name, dp->d_name);
641 (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name);
645 (void) closedir(dirp);
646 (void) atomicio(write, remout, "E\n", 2);
662 int amt, count, exists, first, mask, mode, ofd, omode;
664 int setimes, targisdir, wrerrno = 0;
665 char ch, *cp, *np, *targ, *why, *vect[1], buf[2048];
667 struct timeval tv[2];
669 #define SCREWUP(str) { why = str; goto screwup; }
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);
715 #define getnum(t) (t) = 0; \
716 while (*cp >= '0' && *cp <= '9') (t) = (t) * 10 + (*cp++ - '0');
721 getnum(tv[1].tv_sec);
723 SCREWUP("mtime.sec not delimited");
727 SCREWUP("mtime.usec not delimited");
728 getnum(tv[0].tv_sec);
730 SCREWUP("atime.sec not delimited");
734 SCREWUP("atime.usec not delimited");
735 (void) atomicio(write, remout, "", 1);
738 if (*cp != 'C' && *cp != 'D') {
740 * Check for the case "rcp remote:foo\* local:bar".
741 * In this case, the line "No match." can be returned
742 * by the shell before the rcp command on the remote is
743 * executed so the ^Aerror_message convention isn't
750 SCREWUP("expected control record");
753 for (++cp; cp < buf + 5; cp++) {
754 if (*cp < '0' || *cp > '7')
756 mode = (mode << 3) | (*cp - '0');
759 SCREWUP("mode not delimited");
761 for (size = 0; *cp >= '0' && *cp <= '9';)
762 size = size * 10 + (*cp++ - '0');
764 SCREWUP("size not delimited");
766 static char *namebuf;
770 need = strlen(targ) + strlen(cp) + 250;
771 if (need > cursize) {
774 namebuf = xmalloc(need);
777 (void) snprintf(namebuf, need, "%s%s%s", targ,
778 *targ ? "/" : "", cp);
783 exists = stat(np, &stb) == 0;
785 int mod_flag = pflag;
787 if (!S_ISDIR(stb.st_mode)) {
792 (void) chmod(np, mode);
794 /* Handle copying from a read-only
797 if (mkdir(np, mode | S_IRWXU) < 0)
804 if (utimes(np, tv) < 0)
805 run_err("%s: set times: %s",
806 np, strerror(errno));
809 (void) chmod(np, mode);
814 if ((ofd = open(np, O_WRONLY | O_CREAT | O_TRUNC, mode)) < 0) {
815 bad: run_err("%s: %s", np, strerror(errno));
818 (void) atomicio(write, remout, "", 1);
819 if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) {
831 for (count = i = 0; i < size; i += 4096) {
837 j = read(remin, cp, amt);
838 if (j == -1 && (errno == EINTR || errno == EAGAIN)) {
841 run_err("%s", j ? strerror(errno) :
842 "dropped connection");
849 if (count == bp->cnt) {
850 /* Keep reading so we stay sync'd up. */
852 j = atomicio(write, ofd, bp->buf, count);
855 wrerrno = j >= 0 ? EIO : errno;
864 if (count != 0 && wrerr == NO &&
865 (j = atomicio(write, ofd, bp->buf, count)) != count) {
867 wrerrno = j >= 0 ? EIO : errno;
870 if (ftruncate(ofd, size)) {
871 run_err("%s: truncate: %s", np, strerror(errno));
876 if (exists || omode != mode)
878 if (fchmod(ofd, omode))
879 #else /* HAVE_FCHMOD */
880 if (chmod(np, omode))
881 #endif /* HAVE_FCHMOD */
882 run_err("%s: set mode: %s",
883 np, strerror(errno));
885 if (!exists && omode != mode)
887 if (fchmod(ofd, omode & ~mask))
888 #else /* HAVE_FCHMOD */
889 if (chmod(np, omode & ~mask))
890 #endif /* HAVE_FCHMOD */
891 run_err("%s: set mode: %s",
892 np, strerror(errno));
894 if (close(ofd) == -1) {
899 if (setimes && wrerr == NO) {
901 if (utimes(np, tv) < 0) {
902 run_err("%s: set times: %s",
903 np, strerror(errno));
909 run_err("%s: %s", np, strerror(wrerrno));
912 (void) atomicio(write, remout, "", 1);
919 run_err("protocol error: %s", why);
926 char ch, *cp, resp, rbuf[2048];
928 if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp))
938 case 1: /* error, followed by error msg */
939 case 2: /* fatal error, "" */
941 if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
944 } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
947 (void) atomicio(write, STDERR_FILENO, rbuf, cp - rbuf);
959 (void) fprintf(stderr, "usage: scp "
960 "[-pqrvC46] [-S ssh] [-P port] [-c cipher] [-i identity] f1 f2; or:\n"
961 " scp [options] f1 ... fn directory\n");
966 run_err(const char *fmt,...)
972 if (fp == NULL && !(fp = fdopen(remout, "w")))
974 (void) fprintf(fp, "%c", 0x01);
975 (void) fprintf(fp, "scp: ");
977 (void) vfprintf(fp, fmt, ap);
979 (void) fprintf(fp, "\n");
984 vfprintf(stderr, fmt, ap);
986 fprintf(stderr, "\n");
996 if (*cp == ':') /* Leading colon is part of file name. */
1002 if (*cp == '@' && *(cp+1) == '[')
1004 if (*cp == ']' && *(cp+1) == ':' && flag)
1006 if (*cp == ':' && !flag)
1020 if (!stat(cp, &stb)) {
1021 if (S_ISDIR(stb.st_mode))
1025 run_err("%s: %s", cp, strerror(errno));
1041 if (!isalpha(c) && !isdigit(c) &&
1042 c != '_' && c != '-' && c != '.' && c != '+')
1047 bad: fprintf(stderr, "%s: invalid user name\n", cp0);
1052 allocbuf(bp, fd, blksize)
1057 #ifdef HAVE_ST_BLKSIZE
1060 if (fstat(fd, &stb) < 0) {
1061 run_err("fstat: %s", strerror(errno));
1064 if (stb.st_blksize == 0)
1067 size = blksize + (stb.st_blksize - blksize % stb.st_blksize) %
1069 #else /* HAVE_ST_BLKSIZE */
1071 #endif /* HAVE_ST_BLKSIZE */
1072 if (bp->cnt >= size)
1074 if (bp->buf == NULL)
1075 bp->buf = xmalloc(size);
1077 bp->buf = xrealloc(bp->buf, size);
1087 fprintf(stderr, "lost connection\n");
1093 alarmtimer(int wait)
1095 struct itimerval itv;
1097 itv.it_value.tv_sec = wait;
1098 itv.it_value.tv_usec = 0;
1099 itv.it_interval = itv.it_value;
1100 setitimer(ITIMER_REAL, &itv, NULL);
1104 updateprogressmeter(int ignore)
1106 int save_errno = errno;
1115 static pid_t pgrp = -1;
1121 #ifdef HAVE_TCGETPGRP
1122 return ((ctty_pgrp = tcgetpgrp(STDOUT_FILENO)) != -1 &&
1125 return ((ioctl(STDOUT_FILENO, TIOCGPGRP, &ctty_pgrp) != -1 &&
1126 ctty_pgrp == pgrp));
1131 progressmeter(int flag)
1133 static const char prefixes[] = " KMGTP";
1134 static struct timeval lastupdate;
1135 static off_t lastsize;
1136 struct timeval now, td, wait;
1137 off_t cursize, abbrevsize;
1139 int ratio, barlength, i, remaining;
1143 (void) gettimeofday(&start, (struct timezone *) 0);
1147 if (foregroundproc() == 0)
1150 (void) gettimeofday(&now, (struct timezone *) 0);
1151 cursize = statbytes;
1152 if (totalbytes != 0) {
1153 ratio = 100.0 * cursize / totalbytes;
1154 ratio = MAX(ratio, 0);
1155 ratio = MIN(ratio, 100);
1159 snprintf(buf, sizeof(buf), "\r%-20.20s %3d%% ", curfile, ratio);
1161 barlength = getttywidth() - 51;
1162 barlength = (barlength <= MAX_BARLENGTH)?barlength:MAX_BARLENGTH;
1163 if (barlength > 0) {
1164 i = barlength * ratio / 100;
1165 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1166 "|%.*s%*s|", i, BAR, barlength - i, "");
1169 abbrevsize = cursize;
1170 while (abbrevsize >= 100000 && i < sizeof(prefixes)) {
1174 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %5lu %c%c ",
1175 (unsigned long) abbrevsize, prefixes[i], prefixes[i] == ' ' ? ' ' : 'B');
1177 timersub(&now, &lastupdate, &wait);
1178 if (cursize > lastsize) {
1181 if (wait.tv_sec >= STALLTIME) {
1182 start.tv_sec += wait.tv_sec;
1183 start.tv_usec += wait.tv_usec;
1187 timersub(&now, &start, &td);
1188 elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
1191 (statbytes <= 0 || elapsed <= 0.0 || cursize > totalbytes)) {
1192 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1194 } else if (wait.tv_sec >= STALLTIME) {
1195 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1199 remaining = (int)(totalbytes / (statbytes / elapsed) -
1202 remaining = elapsed;
1204 i = remaining / 3600;
1206 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1209 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1211 i = remaining % 3600;
1212 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1213 "%02d:%02d%s", i / 60, i % 60,
1214 (flag != 1) ? " ETA" : " ");
1216 atomicio(write, fileno(stdout), buf, strlen(buf));
1219 struct sigaction sa;
1220 sa.sa_handler = updateprogressmeter;
1221 sigemptyset((sigset_t *)&sa.sa_mask);
1223 sa.sa_flags = SA_RESTART;
1225 sigaction(SIGALRM, &sa, NULL);
1227 } else if (flag == 1) {
1229 atomicio(write, fileno(stdout), "\n", 1);
1237 struct winsize winsize;
1239 if (ioctl(fileno(stdout), TIOCGWINSZ, &winsize) != -1)
1240 return (winsize.ws_col ? winsize.ws_col : 80);
1246 addargs(char *fmt, ...)
1252 vsnprintf(buf, sizeof(buf), fmt, ap);
1255 if (args.list == NULL) {
1258 args.list = xmalloc(args.nalloc * sizeof(char *));
1259 } else if (args.num+2 >= args.nalloc) {
1261 args.list = xrealloc(args.list, args.nalloc * sizeof(char *));
1263 args.list[args.num++] = xstrdup(buf);
1264 args.list[args.num] = NULL;