*/
#include "includes.h"
-RCSID("$OpenBSD: scp.c,v 1.77 2001/07/18 16:45:52 mouring Exp $");
+RCSID("$OpenBSD: scp.c,v 1.102 2003/03/05 22:33:43 markus Exp $");
#include "xmalloc.h"
#include "atomicio.h"
#include "pathnames.h"
#include "log.h"
#include "misc.h"
+#include "progressmeter.h"
#ifdef HAVE___PROGNAME
extern char *__progname;
char *__progname;
#endif
-/* For progressmeter() -- number of seconds before xfer considered "stalled" */
-#define STALLTIME 5
-
-/* Progress meter bar */
-#define BAR \
- "************************************************************"\
- "************************************************************"\
- "************************************************************"\
- "************************************************************"
-#define MAX_BARLENGTH (sizeof(BAR) - 1)
-
-/* Visual statistics about files as they are transferred. */
-void progressmeter(int);
-
-/* Returns width of the terminal (for progress meter calculations). */
-int getttywidth(void);
-int do_cmd(char *host, char *remuser, char *cmd, int *fdin, int *fdout, int argc);
+void bwlimit(int);
/* Struct for addargs */
arglist args;
-/* Time a transfer started. */
-static struct timeval start;
-
-/* Number of bytes of current file transferred so far. */
-volatile off_t statbytes;
-
-/* Total size of current file. */
-off_t totalbytes = 0;
+/* Bandwidth limit */
+off_t limitbw = 0;
/* Name of current file being transferred. */
char *curfile;
/* This is the program to execute for the secured connection. ("ssh" or -S) */
char *ssh_program = _PATH_SSH_PROGRAM;
+/* This is used to store the pid of ssh_program */
+pid_t do_cmd_pid;
+
/*
* This function executes the given command as the specified user on the
* given host. This returns < 0 if execution fails, and >= 0 otherwise. This
int pin[2], pout[2], reserved[2];
if (verbose_mode)
- fprintf(stderr, "Executing: program %s host %s, user %s, command %s\n",
- ssh_program, host, remuser ? remuser : "(unspecified)", cmd);
+ fprintf(stderr,
+ "Executing: program %s host %s, user %s, command %s\n",
+ ssh_program, host,
+ remuser ? remuser : "(unspecified)", cmd);
/*
* Reserve two descriptors so that the real pipes won't get
close(reserved[1]);
/* For a child to execute the command on the remote host using ssh. */
- if (fork() == 0) {
+ do_cmd_pid = fork();
+ if (do_cmd_pid == 0) {
/* Child. */
close(pin[1]);
close(pout[0]);
execvp(ssh_program, args.list);
perror(ssh_program);
exit(1);
+ } else if (do_cmd_pid == -1) {
+ fatal("fork: %s", strerror(errno));
}
/* Parent. Close the other side, and return the local side. */
close(pin[0]);
#define CMDNEEDS 64
char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
-int main(int, char *[]);
int response(void);
void rsource(char *, struct stat *);
void sink(int, char *[]);
int argc;
char *argv[];
{
- int ch, fflag, tflag;
- char *targ;
+ int ch, fflag, tflag, status;
+ double speed;
+ char *targ, *endp;
extern char *optarg;
extern int optind;
__progname = get_progname(argv[0]);
args.list = NULL;
- addargs(&args, "ssh"); /* overwritten with ssh_program */
+ addargs(&args, "ssh"); /* overwritten with ssh_program */
addargs(&args, "-x");
- addargs(&args, "-oFallBackToRsh no");
+ addargs(&args, "-oForwardAgent no");
+ addargs(&args, "-oClearAllForwardings yes");
fflag = tflag = 0;
- while ((ch = getopt(argc, argv, "dfprtvBCc:i:P:q46S:o:")) != -1)
+ while ((ch = getopt(argc, argv, "dfl:prtvBCc:i:P:q1246S:o:F:")) != -1)
switch (ch) {
/* User-visible flags. */
+ case '1':
+ case '2':
case '4':
case '6':
case 'C':
case 'o':
case 'c':
case 'i':
+ case 'F':
addargs(&args, "-%c%s", ch, optarg);
break;
case 'P':
case 'B':
addargs(&args, "-oBatchmode yes");
break;
+ case 'l':
+ speed = strtod(optarg, &endp);
+ if (speed <= 0 || *endp != '\0')
+ usage();
+ limitbw = speed * 1024;
+ break;
case 'p':
pflag = 1;
break;
targetshouldbedirectory = 1;
remin = remout = -1;
+ do_cmd_pid = -1;
/* Command to be executed on remote system using "ssh". */
(void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s",
verbose_mode ? " -v" : "",
if (targetshouldbedirectory)
verifydir(argv[argc - 1]);
}
+ /*
+ * Finally check the exit status of the ssh process, if one was forked
+ * and no error has occured yet
+ */
+ if (do_cmd_pid != -1 && errs == 0) {
+ if (remin != -1)
+ (void) close(remin);
+ if (remout != -1)
+ (void) close(remout);
+ if (waitpid(do_cmd_pid, &status, 0) == -1)
+ errs = 1;
+ else {
+ if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
+ errs = 1;
+ }
+ }
exit(errs != 0);
}
if (*targ == 0)
targ = ".";
- if ((thost = strchr(argv[argc - 1], '@'))) {
+ if ((thost = strrchr(argv[argc - 1], '@'))) {
/* user@host */
*thost++ = 0;
tuser = argv[argc - 1];
if (*tuser == '\0')
tuser = NULL;
- else if (!okname(tuser))
- exit(1);
} else {
thost = argv[argc - 1];
tuser = NULL;
for (i = 0; i < argc - 1; i++) {
src = colon(argv[i]);
if (src) { /* remote to remote */
+ static char *ssh_options =
+ "-x -o'ClearAllForwardings yes'";
*src++ = 0;
if (*src == 0)
src = ".";
- host = strchr(argv[i], '@');
+ host = strrchr(argv[i], '@');
len = strlen(ssh_program) + strlen(argv[i]) +
strlen(src) + (tuser ? strlen(tuser) : 0) +
- strlen(thost) + strlen(targ) + CMDNEEDS + 32;
+ strlen(thost) + strlen(targ) +
+ strlen(ssh_options) + CMDNEEDS + 20;
bp = xmalloc(len);
if (host) {
*host++ = 0;
suser = argv[i];
if (*suser == '\0')
suser = pwd->pw_name;
- else if (!okname(suser))
+ else if (!okname(suser)) {
+ xfree(bp);
continue;
+ }
+ if (tuser && !okname(tuser)) {
+ xfree(bp);
+ continue;
+ }
snprintf(bp, len,
- "%s%s -x -o'FallBackToRsh no' -n "
+ "%s%s %s -n "
"-l %s %s %s %s '%s%s%s:%s'",
ssh_program, verbose_mode ? " -v" : "",
- suser, host, cmd, src,
+ ssh_options, suser, host, cmd, src,
tuser ? tuser : "", tuser ? "@" : "",
thost, targ);
} else {
host = cleanhostname(argv[i]);
snprintf(bp, len,
- "exec %s%s -x -o'FallBackToRsh no' -n %s "
+ "exec %s%s %s -n %s "
"%s %s '%s%s%s:%s'",
ssh_program, verbose_mode ? " -v" : "",
- host, cmd, src,
+ ssh_options, host, cmd, src,
tuser ? tuser : "", tuser ? "@" : "",
thost, targ);
}
*src++ = 0;
if (*src == 0)
src = ".";
- if ((host = strchr(argv[i], '@')) == NULL) {
+ if ((host = strrchr(argv[i], '@')) == NULL) {
host = argv[i];
suser = NULL;
} else {
suser = argv[i];
if (*suser == '\0')
suser = pwd->pw_name;
- else if (!okname(suser))
- continue;
}
host = cleanhostname(host);
len = strlen(src) + CMDNEEDS + 20;
struct stat stb;
static BUF buffer;
BUF *bp;
- off_t i, amt, result;
+ off_t i, amt, result, statbytes;
int fd, haderr, indx;
char *last, *name, buf[2048];
int len;
len = strlen(name);
while (len > 1 && name[len-1] == '/')
name[--len] = '\0';
+ if (strchr(name, '\n') != NULL) {
+ run_err("%s: skipping, filename contains a newline",
+ name);
+ goto next;
+ }
if ((fd = open(name, O_RDONLY, 0)) < 0)
goto syserr;
if (fstat(fd, &stb) < 0) {
#ifdef HAVE_LONG_LONG_INT
snprintf(buf, sizeof buf, "C%04o %lld %s\n",
(u_int) (stb.st_mode & FILEMODEMASK),
- (long long) stb.st_size, last);
+ (long long)stb.st_size, last);
#else
/* XXX: Handle integer overflow? */
snprintf(buf, sizeof buf, "C%04o %lu %s\n",
(u_int) (stb.st_mode & FILEMODEMASK),
(u_long) stb.st_size, last);
#endif
-
if (verbose_mode) {
fprintf(stderr, "Sending file modes: %s", buf);
- fflush(stderr);
}
(void) atomicio(write, remout, buf, strlen(buf));
if (response() < 0)
next: (void) close(fd);
continue;
}
- if (showprogress) {
- totalbytes = stb.st_size;
- progressmeter(-1);
- }
+ if (showprogress)
+ start_progress_meter(curfile, stb.st_size, &statbytes);
/* Keep writing after an error so that we stay sync'd up. */
for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
amt = bp->cnt;
haderr = result >= 0 ? EIO : errno;
statbytes += result;
}
+ if (limitbw)
+ bwlimit(amt);
}
if (showprogress)
- progressmeter(1);
+ stop_progress_meter();
if (close(fd) < 0 && !haderr)
haderr = errno;
(void) response();
}
+void
+bwlimit(int amount)
+{
+ static struct timeval bwstart, bwend;
+ static int lamt, thresh = 16384;
+ u_int64_t wait;
+ struct timespec ts, rm;
+
+ if (!timerisset(&bwstart)) {
+ gettimeofday(&bwstart, NULL);
+ return;
+ }
+
+ lamt += amount;
+ if (lamt < thresh)
+ return;
+
+ gettimeofday(&bwend, NULL);
+ timersub(&bwend, &bwstart, &bwend);
+ if (!timerisset(&bwend))
+ return;
+
+ lamt *= 8;
+ wait = (double)1000000L * lamt / limitbw;
+
+ bwstart.tv_sec = wait / 1000000L;
+ bwstart.tv_usec = wait % 1000000L;
+
+ if (timercmp(&bwstart, &bwend, >)) {
+ timersub(&bwstart, &bwend, &bwend);
+
+ /* Adjust the wait time */
+ if (bwend.tv_sec) {
+ thresh /= 2;
+ if (thresh < 2048)
+ thresh = 2048;
+ } else if (bwend.tv_usec < 100) {
+ thresh *= 2;
+ if (thresh > 32768)
+ thresh = 32768;
+ }
+
+ TIMEVAL_TO_TIMESPEC(&bwend, &ts);
+ while (nanosleep(&ts, &rm) == -1) {
+ if (errno != EINTR)
+ break;
+ ts = rm;
+ }
+ }
+
+ lamt = 0;
+ gettimeofday(&bwstart, NULL);
+}
+
void
sink(argc, argv)
int argc;
BUF *bp;
off_t i, j;
int amt, count, exists, first, mask, mode, ofd, omode;
- off_t size;
+ off_t size, statbytes;
int setimes, targisdir, wrerrno = 0;
char ch, *cp, *np, *targ, *why, *vect[1], buf[2048];
struct timeval tv[2];
cursize = need;
}
(void) snprintf(namebuf, need, "%s%s%s", targ,
- *targ ? "/" : "", cp);
+ strcmp(targ, "/") ? "/" : "", cp);
np = namebuf;
} else
np = targ;
cp = bp->buf;
wrerr = NO;
- if (showprogress) {
- totalbytes = size;
- progressmeter(-1);
- }
statbytes = 0;
+ if (showprogress)
+ start_progress_meter(curfile, size, &statbytes);
for (count = i = 0; i < size; i += 4096) {
amt = 4096;
if (i + amt > size)
count += amt;
do {
j = read(remin, cp, amt);
- if (j == -1 && (errno == EINTR || errno == EAGAIN)) {
+ if (j == -1 && (errno == EINTR ||
+ errno == EAGAIN)) {
continue;
} else if (j <= 0) {
run_err("%s", j ? strerror(errno) :
cp += j;
statbytes += j;
} while (amt > 0);
+
+ if (limitbw)
+ bwlimit(4096);
+
if (count == bp->cnt) {
/* Keep reading so we stay sync'd up. */
if (wrerr == NO) {
}
}
if (showprogress)
- progressmeter(1);
+ stop_progress_meter();
if (count != 0 && wrerr == NO &&
(j = atomicio(write, ofd, bp->buf, count)) != count) {
wrerr = YES;
wrerrno = j >= 0 ? EIO : errno;
}
- if (ftruncate(ofd, size)) {
+ if (wrerr == NO && ftruncate(ofd, size) != 0) {
run_err("%s: truncate: %s", np, strerror(errno));
wrerr = DISPLAYED;
}
}
int
-response()
+response(void)
{
char ch, *cp, resp, rbuf[2048];
}
void
-usage()
+usage(void)
{
- (void) fprintf(stderr, "usage: scp "
- "[-pqrvBC46] [-S ssh] [-P port] [-c cipher] [-i identity] "
- "[-o option] f1 f2\n"
- " or: scp [options] f1 ... fn directory\n");
+ (void) fprintf(stderr,
+ "usage: scp [-pqrvBC1246] [-F config] [-S program] [-P port]\n"
+ " [-c cipher] [-i identity] [-l limit] [-o option]\n"
+ " [[user@]host1:]file1 [...] [[user@]host2:]file2\n");
exit(1);
}
c = (int)*cp;
if (c & 0200)
goto bad;
- if (!isalpha(c) && !isdigit(c) &&
- c != '_' && c != '-' && c != '.' && c != '+')
- goto bad;
+ if (!isalpha(c) && !isdigit(c)) {
+ switch (c) {
+ case '\'':
+ case '"':
+ case '`':
+ case ' ':
+ case '#':
+ goto bad;
+ default:
+ break;
+ }
+ }
} while (*++cp);
return (1);
int fd, blksize;
{
size_t size;
-#ifdef HAVE_ST_BLKSIZE
+#ifdef HAVE_STRUCT_STAT_ST_BLKSIZE
struct stat stb;
if (fstat(fd, &stb) < 0) {
run_err("fstat: %s", strerror(errno));
return (0);
}
- if (stb.st_blksize == 0)
+ size = roundup(stb.st_blksize, blksize);
+ if (size == 0)
size = blksize;
- else
- size = blksize + (stb.st_blksize - blksize % stb.st_blksize) %
- stb.st_blksize;
-#else /* HAVE_ST_BLKSIZE */
+#else /* HAVE_STRUCT_STAT_ST_BLKSIZE */
size = blksize;
-#endif /* HAVE_ST_BLKSIZE */
+#endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */
if (bp->cnt >= size)
return (bp);
if (bp->buf == NULL)
bp->buf = xmalloc(size);
else
bp->buf = xrealloc(bp->buf, size);
+ memset(bp->buf, 0, size);
bp->cnt = size;
return (bp);
}
else
exit(1);
}
-
-
-static void
-alarmtimer(int wait)
-{
- struct itimerval itv;
-
- itv.it_value.tv_sec = wait;
- itv.it_value.tv_usec = 0;
- itv.it_interval = itv.it_value;
- setitimer(ITIMER_REAL, &itv, NULL);
-}
-
-static void
-updateprogressmeter(int ignore)
-{
- int save_errno = errno;
-
- progressmeter(0);
- errno = save_errno;
-}
-
-static int
-foregroundproc(void)
-{
- static pid_t pgrp = -1;
- int ctty_pgrp;
-
- if (pgrp == -1)
- pgrp = getpgrp();
-
-#ifdef HAVE_TCGETPGRP
- return ((ctty_pgrp = tcgetpgrp(STDOUT_FILENO)) != -1 &&
- ctty_pgrp == pgrp);
-#else
- return ((ioctl(STDOUT_FILENO, TIOCGPGRP, &ctty_pgrp) != -1 &&
- ctty_pgrp == pgrp));
-#endif
-}
-
-void
-progressmeter(int flag)
-{
- static const char prefixes[] = " KMGTP";
- static struct timeval lastupdate;
- static off_t lastsize;
- struct timeval now, td, wait;
- off_t cursize, abbrevsize;
- double elapsed;
- int ratio, barlength, i, remaining;
- char buf[256];
-
- if (flag == -1) {
- (void) gettimeofday(&start, (struct timezone *) 0);
- lastupdate = start;
- lastsize = 0;
- }
- if (foregroundproc() == 0)
- return;
-
- (void) gettimeofday(&now, (struct timezone *) 0);
- cursize = statbytes;
- if (totalbytes != 0) {
- ratio = 100.0 * cursize / totalbytes;
- ratio = MAX(ratio, 0);
- ratio = MIN(ratio, 100);
- } else
- ratio = 100;
-
- snprintf(buf, sizeof(buf), "\r%-20.20s %3d%% ", curfile, ratio);
-
- barlength = getttywidth() - 51;
- barlength = (barlength <= MAX_BARLENGTH)?barlength:MAX_BARLENGTH;
- if (barlength > 0) {
- i = barlength * ratio / 100;
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- "|%.*s%*s|", i, BAR, barlength - i, "");
- }
- i = 0;
- abbrevsize = cursize;
- while (abbrevsize >= 100000 && i < sizeof(prefixes)) {
- i++;
- abbrevsize >>= 10;
- }
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " %5lu %c%c ",
- (unsigned long) abbrevsize, prefixes[i],
- prefixes[i] == ' ' ? ' ' : 'B');
-
- timersub(&now, &lastupdate, &wait);
- if (cursize > lastsize) {
- lastupdate = now;
- lastsize = cursize;
- if (wait.tv_sec >= STALLTIME) {
- start.tv_sec += wait.tv_sec;
- start.tv_usec += wait.tv_usec;
- }
- wait.tv_sec = 0;
- }
- timersub(&now, &start, &td);
- elapsed = td.tv_sec + (td.tv_usec / 1000000.0);
-
- if (flag != 1 &&
- (statbytes <= 0 || elapsed <= 0.0 || cursize > totalbytes)) {
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- " --:-- ETA");
- } else if (wait.tv_sec >= STALLTIME) {
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- " - stalled -");
- } else {
- if (flag != 1)
- remaining = (int)(totalbytes / (statbytes / elapsed) -
- elapsed);
- else
- remaining = elapsed;
-
- i = remaining / 3600;
- if (i)
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- "%2d:", i);
- else
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- " ");
- i = remaining % 3600;
- snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
- "%02d:%02d%s", i / 60, i % 60,
- (flag != 1) ? " ETA" : " ");
- }
- atomicio(write, fileno(stdout), buf, strlen(buf));
-
- if (flag == -1) {
- mysignal(SIGALRM, updateprogressmeter);
- alarmtimer(1);
- } else if (flag == 1) {
- alarmtimer(0);
- atomicio(write, fileno(stdout), "\n", 1);
- statbytes = 0;
- }
-}
-
-int
-getttywidth(void)
-{
- struct winsize winsize;
-
- if (ioctl(fileno(stdout), TIOCGWINSZ, &winsize) != -1)
- return (winsize.ws_col ? winsize.ws_col : 80);
- else
- return (80);
-}
andersk / openssh.git / blobdiff