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 1.58 2001/02/10 15:14:11 danh 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" */
222 int main(int, char *[]);
224 void rsource(char *, struct stat *);
225 void sink(int, char *[]);
226 void source(int, char *[]);
227 void tolocal(int, char *[]);
228 char *cleanhostname(char *);
229 void toremote(char *, int, char *[]);
237 int ch, fflag, tflag;
242 __progname = get_progname(argv[0]);
245 addargs("ssh"); /* overwritten with ssh_program */
247 addargs("-oFallBackToRsh no");
250 while ((ch = getopt(argc, argv, "dfprtvBCc:i:P:q46S:o:")) != -1)
252 /* User-visible flags. */
261 addargs("-%c%s", ch, optarg);
264 addargs("-p%s", optarg);
267 addargs("-oBatchmode yes");
276 ssh_program = xstrdup(optarg);
285 /* Server options. */
287 targetshouldbedirectory = 1;
289 case 'f': /* "from" */
304 if ((pwd = getpwuid(userid = getuid())) == NULL)
305 fatal("unknown user %d", (int) userid);
307 if (!isatty(STDERR_FILENO))
310 remin = STDIN_FILENO;
311 remout = STDOUT_FILENO;
314 /* Follow "protocol", send data. */
327 targetshouldbedirectory = 1;
330 /* Command to be executed on remote system using "ssh". */
331 (void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s",
332 verbose_mode ? " -v" : "",
333 iamrecursive ? " -r" : "", pflag ? " -p" : "",
334 targetshouldbedirectory ? " -d" : "");
336 (void) signal(SIGPIPE, lostconn);
338 if ((targ = colon(argv[argc - 1]))) /* Dest is remote host. */
339 toremote(targ, argc, argv);
341 tolocal(argc, argv); /* Dest is local host. */
342 if (targetshouldbedirectory)
343 verifydir(argv[argc - 1]);
352 if (*host == '[' && host[strlen(host) - 1] == ']') {
353 host[strlen(host) - 1] = '\0';
360 toremote(targ, argc, argv)
365 char *bp, *host, *src, *suser, *thost, *tuser;
371 if ((thost = strchr(argv[argc - 1], '@'))) {
374 tuser = argv[argc - 1];
377 else if (!okname(tuser))
380 thost = argv[argc - 1];
384 for (i = 0; i < argc - 1; i++) {
385 src = colon(argv[i]);
386 if (src) { /* remote to remote */
390 host = strchr(argv[i], '@');
391 len = strlen(ssh_program) + strlen(argv[i]) +
392 strlen(src) + (tuser ? strlen(tuser) : 0) +
393 strlen(thost) + strlen(targ) + CMDNEEDS + 32;
397 host = cleanhostname(host);
400 suser = pwd->pw_name;
401 else if (!okname(suser))
404 "%s%s -x -o'FallBackToRsh no' -n "
405 "-l %s %s %s %s '%s%s%s:%s'",
406 ssh_program, verbose_mode ? " -v" : "",
407 suser, host, cmd, src,
408 tuser ? tuser : "", tuser ? "@" : "",
411 host = cleanhostname(argv[i]);
413 "exec %s%s -x -o'FallBackToRsh no' -n %s "
415 ssh_program, verbose_mode ? " -v" : "",
417 tuser ? tuser : "", tuser ? "@" : "",
421 fprintf(stderr, "Executing: %s\n", bp);
424 } else { /* local to remote */
426 len = strlen(targ) + CMDNEEDS + 20;
428 (void) snprintf(bp, len, "%s -t %s", cmd, targ);
429 host = cleanhostname(thost);
430 if (do_cmd(host, tuser, bp, &remin,
448 char *bp, *host, *src, *suser;
450 for (i = 0; i < argc - 1; i++) {
451 if (!(src = colon(argv[i]))) { /* Local to local. */
452 len = strlen(_PATH_CP) + strlen(argv[i]) +
453 strlen(argv[argc - 1]) + 20;
455 (void) snprintf(bp, len, "exec %s%s%s %s %s", _PATH_CP,
456 iamrecursive ? " -r" : "", pflag ? " -p" : "",
457 argv[i], argv[argc - 1]);
459 fprintf(stderr, "Executing: %s\n", bp);
468 if ((host = strchr(argv[i], '@')) == NULL) {
475 suser = pwd->pw_name;
476 else if (!okname(suser))
479 host = cleanhostname(host);
480 len = strlen(src) + CMDNEEDS + 20;
482 (void) snprintf(bp, len, "%s -f %s", cmd, src);
483 if (do_cmd(host, suser, bp, &remin, &remout, argc) < 0) {
489 sink(1, argv + argc - 1);
504 int amt, fd, haderr, indx, result;
505 char *last, *name, buf[2048];
507 for (indx = 0; indx < argc; ++indx) {
510 if ((fd = open(name, O_RDONLY, 0)) < 0)
512 if (fstat(fd, &stb) < 0) {
513 syserr: run_err("%s: %s", name, strerror(errno));
516 switch (stb.st_mode & S_IFMT) {
526 run_err("%s: not a regular file", name);
529 if ((last = strrchr(name, '/')) == NULL)
536 * Make it compatible with possible future
537 * versions expecting microseconds.
539 (void) snprintf(buf, sizeof buf, "T%lu 0 %lu 0\n",
540 (u_long) stb.st_mtime,
541 (u_long) stb.st_atime);
542 (void) atomicio(write, remout, buf, strlen(buf));
546 #define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
547 snprintf(buf, sizeof buf, "C%04o %lu %s\n",
548 (u_int) (stb.st_mode & FILEMODEMASK),
549 (u_long) stb.st_size, last);
551 fprintf(stderr, "Sending file modes: %s", buf);
554 (void) atomicio(write, remout, buf, strlen(buf));
557 if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) {
558 next: (void) close(fd);
562 totalbytes = stb.st_size;
565 /* Keep writing after an error so that we stay sync'd up. */
566 for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
568 if (i + amt > stb.st_size)
569 amt = stb.st_size - i;
571 result = atomicio(read, fd, bp->buf, amt);
573 haderr = result >= 0 ? EIO : errno;
576 (void) atomicio(write, remout, bp->buf, amt);
578 result = atomicio(write, remout, bp->buf, amt);
580 haderr = result >= 0 ? EIO : errno;
587 if (close(fd) < 0 && !haderr)
590 (void) atomicio(write, remout, "", 1);
592 run_err("%s: %s", name, strerror(haderr));
604 char *last, *vect[1], path[1100];
606 if (!(dirp = opendir(name))) {
607 run_err("%s: %s", name, strerror(errno));
610 last = strrchr(name, '/');
616 (void) snprintf(path, sizeof(path), "T%lu 0 %lu 0\n",
617 (u_long) statp->st_mtime,
618 (u_long) statp->st_atime);
619 (void) atomicio(write, remout, path, strlen(path));
620 if (response() < 0) {
625 (void) snprintf(path, sizeof path, "D%04o %d %.1024s\n",
626 (u_int) (statp->st_mode & FILEMODEMASK), 0, last);
628 fprintf(stderr, "Entering directory: %s", path);
629 (void) atomicio(write, remout, path, strlen(path));
630 if (response() < 0) {
634 while ((dp = readdir(dirp))) {
637 if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
639 if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) {
640 run_err("%s/%s: name too long", name, dp->d_name);
643 (void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name);
647 (void) closedir(dirp);
648 (void) atomicio(write, remout, "E\n", 2);
664 int amt, count, exists, first, mask, mode, ofd, omode;
666 int setimes, targisdir, wrerrno = 0;
667 char ch, *cp, *np, *targ, *why, *vect[1], buf[2048];
669 struct timeval tv[2];
671 #define SCREWUP(str) { why = str; goto screwup; }
673 setimes = targisdir = 0;
678 run_err("ambiguous target");
682 if (targetshouldbedirectory)
685 (void) atomicio(write, remout, "", 1);
686 if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
688 for (first = 1;; first = 0) {
690 if (atomicio(read, remin, cp, 1) <= 0)
693 SCREWUP("unexpected <newline>");
695 if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
696 SCREWUP("lost connection");
698 } while (cp < &buf[sizeof(buf) - 1] && ch != '\n');
701 if (buf[0] == '\01' || buf[0] == '\02') {
703 (void) atomicio(write, STDERR_FILENO,
704 buf + 1, strlen(buf + 1));
711 (void) atomicio(write, remout, "", 1);
717 #define getnum(t) (t) = 0; \
718 while (*cp >= '0' && *cp <= '9') (t) = (t) * 10 + (*cp++ - '0');
723 getnum(tv[1].tv_sec);
725 SCREWUP("mtime.sec not delimited");
729 SCREWUP("mtime.usec not delimited");
730 getnum(tv[0].tv_sec);
732 SCREWUP("atime.sec not delimited");
736 SCREWUP("atime.usec not delimited");
737 (void) atomicio(write, remout, "", 1);
740 if (*cp != 'C' && *cp != 'D') {
742 * Check for the case "rcp remote:foo\* local:bar".
743 * In this case, the line "No match." can be returned
744 * by the shell before the rcp command on the remote is
745 * executed so the ^Aerror_message convention isn't
752 SCREWUP("expected control record");
755 for (++cp; cp < buf + 5; cp++) {
756 if (*cp < '0' || *cp > '7')
758 mode = (mode << 3) | (*cp - '0');
761 SCREWUP("mode not delimited");
763 for (size = 0; *cp >= '0' && *cp <= '9';)
764 size = size * 10 + (*cp++ - '0');
766 SCREWUP("size not delimited");
768 static char *namebuf;
772 need = strlen(targ) + strlen(cp) + 250;
773 if (need > cursize) {
776 namebuf = xmalloc(need);
779 (void) snprintf(namebuf, need, "%s%s%s", targ,
780 *targ ? "/" : "", cp);
785 exists = stat(np, &stb) == 0;
787 int mod_flag = pflag;
789 if (!S_ISDIR(stb.st_mode)) {
794 (void) chmod(np, mode);
796 /* Handle copying from a read-only
799 if (mkdir(np, mode | S_IRWXU) < 0)
802 vect[0] = xstrdup(np);
808 if (utimes(np, tv) < 0)
809 run_err("%s: set times: %s",
810 np, strerror(errno));
813 (void) chmod(np, mode);
818 if ((ofd = open(np, O_WRONLY | O_CREAT | O_TRUNC, mode)) < 0) {
819 bad: run_err("%s: %s", np, strerror(errno));
822 (void) atomicio(write, remout, "", 1);
823 if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) {
835 for (count = i = 0; i < size; i += 4096) {
841 j = read(remin, cp, amt);
842 if (j == -1 && (errno == EINTR || errno == EAGAIN)) {
845 run_err("%s", j ? strerror(errno) :
846 "dropped connection");
853 if (count == bp->cnt) {
854 /* Keep reading so we stay sync'd up. */
856 j = atomicio(write, ofd, bp->buf, count);
859 wrerrno = j >= 0 ? EIO : errno;
868 if (count != 0 && wrerr == NO &&
869 (j = atomicio(write, ofd, bp->buf, count)) != count) {
871 wrerrno = j >= 0 ? EIO : errno;
874 if (ftruncate(ofd, size)) {
875 run_err("%s: truncate: %s", np, strerror(errno));
880 if (exists || omode != mode)
882 if (fchmod(ofd, omode))
883 #else /* HAVE_FCHMOD */
884 if (chmod(np, omode))
885 #endif /* HAVE_FCHMOD */
886 run_err("%s: set mode: %s",
887 np, strerror(errno));
889 if (!exists && omode != mode)
891 if (fchmod(ofd, omode & ~mask))
892 #else /* HAVE_FCHMOD */
893 if (chmod(np, omode & ~mask))
894 #endif /* HAVE_FCHMOD */
895 run_err("%s: set mode: %s",
896 np, strerror(errno));
898 if (close(ofd) == -1) {
903 if (setimes && wrerr == NO) {
905 if (utimes(np, tv) < 0) {
906 run_err("%s: set times: %s",
907 np, strerror(errno));
913 run_err("%s: %s", np, strerror(wrerrno));
916 (void) atomicio(write, remout, "", 1);
923 run_err("protocol error: %s", why);
930 char ch, *cp, resp, rbuf[2048];
932 if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp))
942 case 1: /* error, followed by error msg */
943 case 2: /* fatal error, "" */
945 if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
948 } while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
951 (void) atomicio(write, STDERR_FILENO, rbuf, cp - rbuf);
963 (void) fprintf(stderr, "usage: scp "
964 "[-pqrvC46] [-S ssh] [-P port] [-c cipher] [-i identity] f1 f2; or:\n"
965 " scp [options] f1 ... fn directory\n");
970 run_err(const char *fmt,...)
976 if (fp == NULL && !(fp = fdopen(remout, "w")))
978 (void) fprintf(fp, "%c", 0x01);
979 (void) fprintf(fp, "scp: ");
981 (void) vfprintf(fp, fmt, ap);
983 (void) fprintf(fp, "\n");
988 vfprintf(stderr, fmt, ap);
990 fprintf(stderr, "\n");
1000 if (*cp == ':') /* Leading colon is part of file name. */
1006 if (*cp == '@' && *(cp+1) == '[')
1008 if (*cp == ']' && *(cp+1) == ':' && flag)
1010 if (*cp == ':' && !flag)
1024 if (!stat(cp, &stb)) {
1025 if (S_ISDIR(stb.st_mode))
1029 run_err("%s: %s", cp, strerror(errno));
1045 if (!isalpha(c) && !isdigit(c) &&
1046 c != '_' && c != '-' && c != '.' && c != '+')
1051 bad: fprintf(stderr, "%s: invalid user name\n", cp0);
1056 allocbuf(bp, fd, blksize)
1061 #ifdef HAVE_ST_BLKSIZE
1064 if (fstat(fd, &stb) < 0) {
1065 run_err("fstat: %s", strerror(errno));
1068 if (stb.st_blksize == 0)
1071 size = blksize + (stb.st_blksize - blksize % stb.st_blksize) %
1073 #else /* HAVE_ST_BLKSIZE */
1075 #endif /* HAVE_ST_BLKSIZE */
1076 if (bp->cnt >= size)
1078 if (bp->buf == NULL)
1079 bp->buf = xmalloc(size);
1081 bp->buf = xrealloc(bp->buf, size);
1091 fprintf(stderr, "lost connection\n");
1097 alarmtimer(int wait)
1099 struct itimerval itv;
1101 itv.it_value.tv_sec = wait;
1102 itv.it_value.tv_usec = 0;
1103 itv.it_interval = itv.it_value;
1104 setitimer(ITIMER_REAL, &itv, NULL);
1108 updateprogressmeter(int ignore)
1110 int save_errno = errno;
1117 foregroundproc(void)
1119 static pid_t pgrp = -1;
1125 #ifdef HAVE_TCGETPGRP
1126 return ((ctty_pgrp = tcgetpgrp(STDOUT_FILENO)) != -1 &&
1129 return ((ioctl(STDOUT_FILENO, TIOCGPGRP, &ctty_pgrp) != -1 &&
1130 ctty_pgrp == pgrp));
1135 progressmeter(int flag)
1137 static const char prefixes[] = " KMGTP";
1138 static struct timeval lastupdate;
1139 static off_t lastsize;
1140 struct timeval now, td, wait;
1141 off_t cursize, abbrevsize;
1143 int ratio, barlength, i, remaining;
1147 (void) gettimeofday(&start, (struct timezone *) 0);
1151 if (foregroundproc() == 0)
1154 (void) gettimeofday(&now, (struct timezone *) 0);
1155 cursize = statbytes;
1156 if (totalbytes != 0) {
1157 ratio = 100.0 * cursize / totalbytes;
1158 ratio = MAX(ratio, 0);
1159 ratio = MIN(ratio, 100);
1163 snprintf(buf, sizeof(buf), "\r%-20.20s %3d%% ", curfile, ratio);
1165 barlength = getttywidth() - 51;
1166 barlength = (barlength <= MAX_BARLENGTH)?barlength:MAX_BARLENGTH;
1167 if (barlength > 0) {
1168 i = barlength * ratio / 100;
1169 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1170 "|%.*s%*s|", i, BAR, barlength - i, "");
1173 abbrevsize = cursize;
1174 while (abbrevsize >= 100000 && i < sizeof(prefixes)) {
1178 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %5lu %c%c ",
1179 (unsigned long) abbrevsize, prefixes[i], prefixes[i] == ' ' ? ' ' : 'B');
1181 timersub(&now, &lastupdate, &wait);
1182 if (cursize > lastsize) {
1185 if (wait.tv_sec >= STALLTIME) {
1186 start.tv_sec += wait.tv_sec;
1187 start.tv_usec += wait.tv_usec;
1191 timersub(&now, &start, &td);
1192 elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
1195 (statbytes <= 0 || elapsed <= 0.0 || cursize > totalbytes)) {
1196 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1198 } else if (wait.tv_sec >= STALLTIME) {
1199 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1203 remaining = (int)(totalbytes / (statbytes / elapsed) -
1206 remaining = elapsed;
1208 i = remaining / 3600;
1210 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1213 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1215 i = remaining % 3600;
1216 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
1217 "%02d:%02d%s", i / 60, i % 60,
1218 (flag != 1) ? " ETA" : " ");
1220 atomicio(write, fileno(stdout), buf, strlen(buf));
1223 struct sigaction sa;
1224 sa.sa_handler = updateprogressmeter;
1225 sigemptyset((sigset_t *)&sa.sa_mask);
1227 sa.sa_flags = SA_RESTART;
1229 sigaction(SIGALRM, &sa, NULL);
1231 } else if (flag == 1) {
1233 atomicio(write, fileno(stdout), "\n", 1);
1241 struct winsize winsize;
1243 if (ioctl(fileno(stdout), TIOCGWINSZ, &winsize) != -1)
1244 return (winsize.ws_col ? winsize.ws_col : 80);
1250 addargs(char *fmt, ...)
1256 vsnprintf(buf, sizeof(buf), fmt, ap);
1259 if (args.list == NULL) {
1262 args.list = xmalloc(args.nalloc * sizeof(char *));
1263 } else if (args.num+2 >= args.nalloc) {
1265 args.list = xrealloc(args.list, args.nalloc * sizeof(char *));
1267 args.list[args.num++] = xstrdup(buf);
1268 args.list[args.num] = NULL;