+/* $OpenBSD: sftp.c,v 1.107 2009/02/02 11:15:14 dtucker Exp $ */
/*
* Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
*
#include "includes.h"
-RCSID("$OpenBSD: sftp.c,v 1.45 2004/03/03 09:31:20 djm Exp $");
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+#ifdef HAVE_SYS_STATVFS_H
+#include <sys/statvfs.h>
+#endif
+
+#include <ctype.h>
+#include <errno.h>
+
+#ifdef HAVE_PATHS_H
+# include <paths.h>
+#endif
+#ifdef USE_LIBEDIT
+#include <histedit.h>
+#else
+typedef void EditLine;
+#endif
+#include <signal.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdarg.h>
+
+#ifdef HAVE_UTIL_H
+# include <util.h>
+#endif
+
+#ifdef HAVE_LIBUTIL_H
+# include <libutil.h>
+#endif
-#include "buffer.h"
#include "xmalloc.h"
#include "log.h"
#include "pathnames.h"
#include "misc.h"
#include "sftp.h"
+#include "buffer.h"
#include "sftp-common.h"
#include "sftp-client.h"
size_t copy_buffer_len = 32768;
/* Number of concurrent outstanding requests */
-size_t num_requests = 16;
+size_t num_requests = 64;
/* PID of ssh transport process */
static pid_t sshpid = -1;
/* This is set to 0 if the progressmeter is not desired. */
int showprogress = 1;
+/* SIGINT received during command processing */
+volatile sig_atomic_t interrupted = 0;
+
+/* I wish qsort() took a separate ctx for the comparison function...*/
+int sort_flag;
+
int remote_glob(struct sftp_conn *, const char *, int,
int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */
-#ifdef HAVE___PROGNAME
extern char *__progname;
-#else
-char *__progname;
-#endif
/* Separators for interactive commands */
#define WHITESPACE " \t\r\n"
-/* Define what type of ls view (0 - multi-column) */
-#define LONG_VIEW 1 /* Full view ala ls -l */
-#define SHORT_VIEW 2 /* Single row view ala ls -1 */
+/* ls flags */
+#define LS_LONG_VIEW 0x01 /* Full view ala ls -l */
+#define LS_SHORT_VIEW 0x02 /* Single row view ala ls -1 */
+#define LS_NUMERIC_VIEW 0x04 /* Long view with numeric uid/gid */
+#define LS_NAME_SORT 0x08 /* Sort by name (default) */
+#define LS_TIME_SORT 0x10 /* Sort by mtime */
+#define LS_SIZE_SORT 0x20 /* Sort by file size */
+#define LS_REVERSE_SORT 0x40 /* Reverse sort order */
+#define LS_SHOW_ALL 0x80 /* Don't skip filenames starting with '.' */
+
+#define VIEW_FLAGS (LS_LONG_VIEW|LS_SHORT_VIEW|LS_NUMERIC_VIEW)
+#define SORT_FLAGS (LS_NAME_SORT|LS_TIME_SORT|LS_SIZE_SORT)
/* Commands for interactive mode */
#define I_CHDIR 1
#define I_CHGRP 2
#define I_CHMOD 3
#define I_CHOWN 4
+#define I_DF 24
#define I_GET 5
#define I_HELP 6
#define I_LCHDIR 7
{ "chgrp", I_CHGRP },
{ "chmod", I_CHMOD },
{ "chown", I_CHOWN },
+ { "df", I_DF },
{ "dir", I_LS },
{ "exit", I_QUIT },
{ "get", I_GET },
int interactive_loop(int fd_in, int fd_out, char *file1, char *file2);
+/* ARGSUSED */
+static void
+killchild(int signo)
+{
+ if (sshpid > 1) {
+ kill(sshpid, SIGTERM);
+ waitpid(sshpid, NULL, 0);
+ }
+
+ _exit(1);
+}
+
+/* ARGSUSED */
+static void
+cmd_interrupt(int signo)
+{
+ const char msg[] = "\rInterrupt \n";
+ int olderrno = errno;
+
+ write(STDERR_FILENO, msg, sizeof(msg) - 1);
+ interrupted = 1;
+ errno = olderrno;
+}
+
static void
help(void)
{
- printf("Available commands:\n");
- printf("cd path Change remote directory to 'path'\n");
- printf("lcd path Change local directory to 'path'\n");
- printf("chgrp grp path Change group of file 'path' to 'grp'\n");
- printf("chmod mode path Change permissions of file 'path' to 'mode'\n");
- printf("chown own path Change owner of file 'path' to 'own'\n");
- printf("help Display this help text\n");
- printf("get remote-path [local-path] Download file\n");
- printf("lls [ls-options [path]] Display local directory listing\n");
- printf("ln oldpath newpath Symlink remote file\n");
- printf("lmkdir path Create local directory\n");
- printf("lpwd Print local working directory\n");
- printf("ls [path] Display remote directory listing\n");
- printf("lumask umask Set local umask to 'umask'\n");
- printf("mkdir path Create remote directory\n");
- printf("progress Toggle display of progress meter\n");
- printf("put local-path [remote-path] Upload file\n");
- printf("pwd Display remote working directory\n");
- printf("exit Quit sftp\n");
- printf("quit Quit sftp\n");
- printf("rename oldpath newpath Rename remote file\n");
- printf("rmdir path Remove remote directory\n");
- printf("rm path Delete remote file\n");
- printf("symlink oldpath newpath Symlink remote file\n");
- printf("version Show SFTP version\n");
- printf("!command Execute 'command' in local shell\n");
- printf("! Escape to local shell\n");
- printf("? Synonym for help\n");
+ printf("Available commands:\n"
+ "bye Quit sftp\n"
+ "cd path Change remote directory to 'path'\n"
+ "chgrp grp path Change group of file 'path' to 'grp'\n"
+ "chmod mode path Change permissions of file 'path' to 'mode'\n"
+ "chown own path Change owner of file 'path' to 'own'\n"
+ "df [-hi] [path] Display statistics for current directory or\n"
+ " filesystem containing 'path'\n"
+ "exit Quit sftp\n"
+ "get [-P] remote-path [local-path] Download file\n"
+ "help Display this help text\n"
+ "lcd path Change local directory to 'path'\n"
+ "lls [ls-options [path]] Display local directory listing\n"
+ "lmkdir path Create local directory\n"
+ "ln oldpath newpath Symlink remote file\n"
+ "lpwd Print local working directory\n"
+ "ls [-1aflnrSt] [path] Display remote directory listing\n"
+ "lumask umask Set local umask to 'umask'\n"
+ "mkdir path Create remote directory\n"
+ "progress Toggle display of progress meter\n"
+ "put [-P] local-path [remote-path] Upload file\n"
+ "pwd Display remote working directory\n"
+ "quit Quit sftp\n"
+ "rename oldpath newpath Rename remote file\n"
+ "rm path Delete remote file\n"
+ "rmdir path Remove remote directory\n"
+ "symlink oldpath newpath Symlink remote file\n"
+ "version Show SFTP version\n"
+ "!command Execute 'command' in local shell\n"
+ "! Escape to local shell\n"
+ "? Synonym for help\n");
}
static void
if (errno != EINTR)
fatal("Couldn't wait for child: %s", strerror(errno));
if (!WIFEXITED(status))
- error("Shell exited abormally");
+ error("Shell exited abnormally");
else if (WEXITSTATUS(status))
error("Shell exited with status %d", WEXITSTATUS(status));
}
return (xstrdup(path));
len = strlen(strip);
- if (strip != NULL && strncmp(path, strip, len) == 0) {
+ if (strncmp(path, strip, len) == 0) {
if (strip[len - 1] != '/' && path[len] == '/')
len++;
return (xstrdup(path + len));
path_append(char *p1, char *p2)
{
char *ret;
- int len = strlen(p1) + strlen(p2) + 2;
+ size_t len = strlen(p1) + strlen(p2) + 2;
ret = xmalloc(len);
strlcpy(ret, p1, len);
- if (p1[strlen(p1) - 1] != '/')
+ if (p1[0] != '\0' && p1[strlen(p1) - 1] != '/')
strlcat(ret, "/", len);
strlcat(ret, p2, len);
static char *
make_absolute(char *p, char *pwd)
{
- char *abs;
+ char *abs_str;
/* Derelativise */
if (p && p[0] != '/') {
- abs = path_append(pwd, p);
+ abs_str = path_append(pwd, p);
xfree(p);
- return(abs);
+ return(abs_str);
} else
return(p);
}
}
static int
-parse_getput_flags(const char **cpp, int *pflag)
+parse_getput_flags(const char *cmd, char **argv, int argc, int *pflag)
{
- const char *cp = *cpp;
+ extern int opterr, optind, optopt, optreset;
+ int ch;
- /* Check for flags */
- if (cp[0] == '-' && cp[1] && strchr(WHITESPACE, cp[2])) {
- switch (cp[1]) {
+ optind = optreset = 1;
+ opterr = 0;
+
+ *pflag = 0;
+ while ((ch = getopt(argc, argv, "Pp")) != -1) {
+ switch (ch) {
case 'p':
case 'P':
*pflag = 1;
break;
default:
- error("Invalid flag -%c", cp[1]);
- return(-1);
+ error("%s: Invalid flag -%c", cmd, optopt);
+ return -1;
}
- cp += 2;
- *cpp = cp + strspn(cp, WHITESPACE);
}
- return(0);
+ return optind;
}
static int
-parse_ls_flags(const char **cpp, int *lflag)
+parse_ls_flags(char **argv, int argc, int *lflag)
{
- const char *cp = *cpp;
-
- /* Check for flags */
- if (cp++[0] == '-') {
- for(; strchr(WHITESPACE, *cp) == NULL; cp++) {
- switch (*cp) {
- case 'l':
- *lflag = LONG_VIEW;
- break;
- case '1':
- *lflag = SHORT_VIEW;
- break;
- default:
- error("Invalid flag -%c", *cp);
- return(-1);
- }
+ extern int opterr, optind, optopt, optreset;
+ int ch;
+
+ optind = optreset = 1;
+ opterr = 0;
+
+ *lflag = LS_NAME_SORT;
+ while ((ch = getopt(argc, argv, "1Saflnrt")) != -1) {
+ switch (ch) {
+ case '1':
+ *lflag &= ~VIEW_FLAGS;
+ *lflag |= LS_SHORT_VIEW;
+ break;
+ case 'S':
+ *lflag &= ~SORT_FLAGS;
+ *lflag |= LS_SIZE_SORT;
+ break;
+ case 'a':
+ *lflag |= LS_SHOW_ALL;
+ break;
+ case 'f':
+ *lflag &= ~SORT_FLAGS;
+ break;
+ case 'l':
+ *lflag &= ~VIEW_FLAGS;
+ *lflag |= LS_LONG_VIEW;
+ break;
+ case 'n':
+ *lflag &= ~VIEW_FLAGS;
+ *lflag |= LS_NUMERIC_VIEW|LS_LONG_VIEW;
+ break;
+ case 'r':
+ *lflag |= LS_REVERSE_SORT;
+ break;
+ case 't':
+ *lflag &= ~SORT_FLAGS;
+ *lflag |= LS_TIME_SORT;
+ break;
+ default:
+ error("ls: Invalid flag -%c", optopt);
+ return -1;
}
- *cpp = cp + strspn(cp, WHITESPACE);
}
- return(0);
+ return optind;
}
static int
-get_pathname(const char **cpp, char **path)
+parse_df_flags(const char *cmd, char **argv, int argc, int *hflag, int *iflag)
{
- const char *cp = *cpp, *end;
- char quot;
- int i, j;
-
- cp += strspn(cp, WHITESPACE);
- if (!*cp) {
- *cpp = cp;
- *path = NULL;
- return (0);
- }
+ extern int opterr, optind, optopt, optreset;
+ int ch;
- *path = xmalloc(strlen(cp) + 1);
+ optind = optreset = 1;
+ opterr = 0;
- /* Check for quoted filenames */
- if (*cp == '\"' || *cp == '\'') {
- quot = *cp++;
-
- /* Search for terminating quote, unescape some chars */
- for (i = j = 0; i <= strlen(cp); i++) {
- if (cp[i] == quot) { /* Found quote */
- i++;
- (*path)[j] = '\0';
- break;
- }
- if (cp[i] == '\0') { /* End of string */
- error("Unterminated quote");
- goto fail;
- }
- if (cp[i] == '\\') { /* Escaped characters */
- i++;
- if (cp[i] != '\'' && cp[i] != '\"' &&
- cp[i] != '\\') {
- error("Bad escaped character '\%c'",
- cp[i]);
- goto fail;
- }
- }
- (*path)[j++] = cp[i];
- }
-
- if (j == 0) {
- error("Empty quotes");
- goto fail;
+ *hflag = *iflag = 0;
+ while ((ch = getopt(argc, argv, "hi")) != -1) {
+ switch (ch) {
+ case 'h':
+ *hflag = 1;
+ break;
+ case 'i':
+ *iflag = 1;
+ break;
+ default:
+ error("%s: Invalid flag -%c", cmd, optopt);
+ return -1;
}
- *cpp = cp + i + strspn(cp + i, WHITESPACE);
- } else {
- /* Read to end of filename */
- end = strpbrk(cp, WHITESPACE);
- if (end == NULL)
- end = strchr(cp, '\0');
- *cpp = end + strspn(end, WHITESPACE);
-
- memcpy(*path, cp, end - cp);
- (*path)[end - cp] = '\0';
}
- return (0);
- fail:
- xfree(*path);
- *path = NULL;
- return (-1);
+ return optind;
}
static int
if (stat(path, &sb) == -1)
return(0);
- return(sb.st_mode & S_IFDIR);
-}
-
-static int
-is_reg(char *path)
-{
- struct stat sb;
-
- if (stat(path, &sb) == -1)
- fatal("stat %s: %s", path, strerror(errno));
-
- return(S_ISREG(sb.st_mode));
+ return(S_ISDIR(sb.st_mode));
}
static int
return(0);
if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS))
return(0);
- return(a->perm & S_IFDIR);
+ return(S_ISDIR(a->perm));
}
static int
goto out;
}
- for (i = 0; g.gl_pathv[i]; i++) {
+ for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
if (infer_path(g.gl_pathv[i], &tmp)) {
err = -1;
goto out;
if (g.gl_matchc == 1 && dst) {
/* If directory specified, append filename */
+ xfree(tmp);
if (is_dir(dst)) {
if (infer_path(g.gl_pathv[0], &tmp)) {
err = 1;
out:
xfree(abs_src);
- if (abs_dst)
- xfree(abs_dst);
globfree(&g);
return(err);
}
glob_t g;
int err = 0;
int i;
+ struct stat sb;
if (dst) {
tmp_dst = xstrdup(dst);
memset(&g, 0, sizeof(g));
debug3("Looking up %s", src);
- if (glob(src, 0, NULL, &g)) {
+ if (glob(src, GLOB_NOCHECK, NULL, &g)) {
error("File \"%s\" not found.", src);
err = -1;
goto out;
goto out;
}
- for (i = 0; g.gl_pathv[i]; i++) {
- if (!is_reg(g.gl_pathv[i])) {
+ for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
+ if (stat(g.gl_pathv[i], &sb) == -1) {
+ err = -1;
+ error("stat %s: %s", g.gl_pathv[i], strerror(errno));
+ continue;
+ }
+
+ if (!S_ISREG(sb.st_mode)) {
error("skipping non-regular file %s",
g.gl_pathv[i]);
continue;
{
SFTP_DIRENT *a = *(SFTP_DIRENT **)aa;
SFTP_DIRENT *b = *(SFTP_DIRENT **)bb;
+ int rmul = sort_flag & LS_REVERSE_SORT ? -1 : 1;
- return (strcmp(a->filename, b->filename));
+#define NCMP(a,b) (a == b ? 0 : (a < b ? 1 : -1))
+ if (sort_flag & LS_NAME_SORT)
+ return (rmul * strcmp(a->filename, b->filename));
+ else if (sort_flag & LS_TIME_SORT)
+ return (rmul * NCMP(a->a.mtime, b->a.mtime));
+ else if (sort_flag & LS_SIZE_SORT)
+ return (rmul * NCMP(a->a.size, b->a.size));
+
+ fatal("Unknown ls sort type");
}
/* sftp ls.1 replacement for directories */
static int
do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag)
{
- int n, c = 1, colspace = 0, columns = 1;
+ int n;
+ u_int c = 1, colspace = 0, columns = 1;
SFTP_DIRENT **d;
if ((n = do_readdir(conn, path, &d)) != 0)
return (n);
- if (!(lflag & SHORT_VIEW)) {
- int m = 0, width = 80;
+ if (!(lflag & LS_SHORT_VIEW)) {
+ u_int m = 0, width = 80;
struct winsize ws;
char *tmp;
/* Count entries for sort and find longest filename */
- for (n = 0; d[n] != NULL; n++)
- m = MAX(m, strlen(d[n]->filename));
+ for (n = 0; d[n] != NULL; n++) {
+ if (d[n]->filename[0] != '.' || (lflag & LS_SHOW_ALL))
+ m = MAX(m, strlen(d[n]->filename));
+ }
/* Add any subpath that also needs to be counted */
tmp = path_strip(path, strip_path);
colspace = MIN(colspace, width);
}
- qsort(d, n, sizeof(*d), sdirent_comp);
+ if (lflag & SORT_FLAGS) {
+ for (n = 0; d[n] != NULL; n++)
+ ; /* count entries */
+ sort_flag = lflag & (SORT_FLAGS|LS_REVERSE_SORT);
+ qsort(d, n, sizeof(*d), sdirent_comp);
+ }
- for (n = 0; d[n] != NULL; n++) {
+ for (n = 0; d[n] != NULL && !interrupted; n++) {
char *tmp, *fname;
+ if (d[n]->filename[0] == '.' && !(lflag & LS_SHOW_ALL))
+ continue;
+
tmp = path_append(path, d[n]->filename);
fname = path_strip(tmp, strip_path);
xfree(tmp);
- if (lflag & LONG_VIEW) {
- char *lname;
- struct stat sb;
+ if (lflag & LS_LONG_VIEW) {
+ if (lflag & LS_NUMERIC_VIEW) {
+ char *lname;
+ struct stat sb;
- memset(&sb, 0, sizeof(sb));
- attrib_to_stat(&d[n]->a, &sb);
- lname = ls_file(fname, &sb, 1);
- printf("%s\n", lname);
- xfree(lname);
+ memset(&sb, 0, sizeof(sb));
+ attrib_to_stat(&d[n]->a, &sb);
+ lname = ls_file(fname, &sb, 1);
+ printf("%s\n", lname);
+ xfree(lname);
+ } else
+ printf("%s\n", d[n]->longname);
} else {
printf("%-*s", colspace, fname);
if (c >= columns) {
xfree(fname);
}
- if (!(lflag & LONG_VIEW) && (c != 1))
+ if (!(lflag & LS_LONG_VIEW) && (c != 1))
printf("\n");
free_sftp_dirents(d);
int lflag)
{
glob_t g;
- int i, c = 1, colspace = 0, columns = 1;
- Attrib *a;
+ u_int i, c = 1, colspace = 0, columns = 1;
+ Attrib *a = NULL;
memset(&g, 0, sizeof(g));
if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE,
- NULL, &g)) {
+ NULL, &g) || (g.gl_pathc && !g.gl_matchc)) {
+ if (g.gl_pathc)
+ globfree(&g);
error("Can't ls: \"%s\" not found", path);
return (-1);
}
+ if (interrupted)
+ goto out;
+
/*
- * If the glob returns a single match, which is the same as the
- * input glob, and it is a directory, then just list its contents
+ * If the glob returns a single match and it is a directory,
+ * then just list its contents.
*/
- if (g.gl_pathc == 1 &&
- strncmp(path, g.gl_pathv[0], strlen(g.gl_pathv[0]) - 1) == 0) {
- if ((a = do_lstat(conn, path, 1)) == NULL) {
+ if (g.gl_matchc == 1) {
+ if ((a = do_lstat(conn, g.gl_pathv[0], 1)) == NULL) {
globfree(&g);
return (-1);
}
if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
S_ISDIR(a->perm)) {
+ int err;
+
+ err = do_ls_dir(conn, g.gl_pathv[0], strip_path, lflag);
globfree(&g);
- return (do_ls_dir(conn, path, strip_path, lflag));
+ return (err);
}
}
- if (!(lflag & SHORT_VIEW)) {
- int m = 0, width = 80;
+ if (!(lflag & LS_SHORT_VIEW)) {
+ u_int m = 0, width = 80;
struct winsize ws;
/* Count entries for sort and find longest filename */
colspace = width / columns;
}
- for (i = 0; g.gl_pathv[i]; i++) {
+ for (i = 0; g.gl_pathv[i] && !interrupted; i++, a = NULL) {
char *fname;
fname = path_strip(g.gl_pathv[i], strip_path);
- if (lflag & LONG_VIEW) {
+ if (lflag & LS_LONG_VIEW) {
char *lname;
struct stat sb;
* that the server returns as well as the filenames.
*/
memset(&sb, 0, sizeof(sb));
- a = do_lstat(conn, g.gl_pathv[i], 1);
+ if (a == NULL)
+ a = do_lstat(conn, g.gl_pathv[i], 1);
if (a != NULL)
attrib_to_stat(a, &sb);
lname = ls_file(fname, &sb, 1);
xfree(fname);
}
- if (!(lflag & LONG_VIEW) && (c != 1))
+ if (!(lflag & LS_LONG_VIEW) && (c != 1))
printf("\n");
+ out:
if (g.gl_pathc)
globfree(&g);
}
static int
-parse_args(const char **cpp, int *pflag, int *lflag, int *iflag,
+do_df(struct sftp_conn *conn, char *path, int hflag, int iflag)
+{
+ struct sftp_statvfs st;
+ char s_used[FMT_SCALED_STRSIZE];
+ char s_avail[FMT_SCALED_STRSIZE];
+ char s_root[FMT_SCALED_STRSIZE];
+ char s_total[FMT_SCALED_STRSIZE];
+
+ if (do_statvfs(conn, path, &st, 1) == -1)
+ return -1;
+ if (iflag) {
+ printf(" Inodes Used Avail "
+ "(root) %%Capacity\n");
+ printf("%11llu %11llu %11llu %11llu %3llu%%\n",
+ (unsigned long long)st.f_files,
+ (unsigned long long)(st.f_files - st.f_ffree),
+ (unsigned long long)st.f_favail,
+ (unsigned long long)st.f_ffree,
+ (unsigned long long)(100 * (st.f_files - st.f_ffree) /
+ st.f_files));
+ } else if (hflag) {
+ strlcpy(s_used, "error", sizeof(s_used));
+ strlcpy(s_avail, "error", sizeof(s_avail));
+ strlcpy(s_root, "error", sizeof(s_root));
+ strlcpy(s_total, "error", sizeof(s_total));
+ fmt_scaled((st.f_blocks - st.f_bfree) * st.f_frsize, s_used);
+ fmt_scaled(st.f_bavail * st.f_frsize, s_avail);
+ fmt_scaled(st.f_bfree * st.f_frsize, s_root);
+ fmt_scaled(st.f_blocks * st.f_frsize, s_total);
+ printf(" Size Used Avail (root) %%Capacity\n");
+ printf("%7sB %7sB %7sB %7sB %3llu%%\n",
+ s_total, s_used, s_avail, s_root,
+ (unsigned long long)(100 * (st.f_blocks - st.f_bfree) /
+ st.f_blocks));
+ } else {
+ printf(" Size Used Avail "
+ "(root) %%Capacity\n");
+ printf("%12llu %12llu %12llu %12llu %3llu%%\n",
+ (unsigned long long)(st.f_frsize * st.f_blocks / 1024),
+ (unsigned long long)(st.f_frsize *
+ (st.f_blocks - st.f_bfree) / 1024),
+ (unsigned long long)(st.f_frsize * st.f_bavail / 1024),
+ (unsigned long long)(st.f_frsize * st.f_bfree / 1024),
+ (unsigned long long)(100 * (st.f_blocks - st.f_bfree) /
+ st.f_blocks));
+ }
+ return 0;
+}
+
+/*
+ * Undo escaping of glob sequences in place. Used to undo extra escaping
+ * applied in makeargv() when the string is destined for a function that
+ * does not glob it.
+ */
+static void
+undo_glob_escape(char *s)
+{
+ size_t i, j;
+
+ for (i = j = 0;;) {
+ if (s[i] == '\0') {
+ s[j] = '\0';
+ return;
+ }
+ if (s[i] != '\\') {
+ s[j++] = s[i++];
+ continue;
+ }
+ /* s[i] == '\\' */
+ ++i;
+ switch (s[i]) {
+ case '?':
+ case '[':
+ case '*':
+ case '\\':
+ s[j++] = s[i++];
+ break;
+ case '\0':
+ s[j++] = '\\';
+ s[j] = '\0';
+ return;
+ default:
+ s[j++] = '\\';
+ s[j++] = s[i++];
+ break;
+ }
+ }
+}
+
+/*
+ * Split a string into an argument vector using sh(1)-style quoting,
+ * comment and escaping rules, but with some tweaks to handle glob(3)
+ * wildcards.
+ * Returns NULL on error or a NULL-terminated array of arguments.
+ */
+#define MAXARGS 128
+#define MAXARGLEN 8192
+static char **
+makeargv(const char *arg, int *argcp)
+{
+ int argc, quot;
+ size_t i, j;
+ static char argvs[MAXARGLEN];
+ static char *argv[MAXARGS + 1];
+ enum { MA_START, MA_SQUOTE, MA_DQUOTE, MA_UNQUOTED } state, q;
+
+ *argcp = argc = 0;
+ if (strlen(arg) > sizeof(argvs) - 1) {
+ args_too_longs:
+ error("string too long");
+ return NULL;
+ }
+ state = MA_START;
+ i = j = 0;
+ for (;;) {
+ if (isspace(arg[i])) {
+ if (state == MA_UNQUOTED) {
+ /* Terminate current argument */
+ argvs[j++] = '\0';
+ argc++;
+ state = MA_START;
+ } else if (state != MA_START)
+ argvs[j++] = arg[i];
+ } else if (arg[i] == '"' || arg[i] == '\'') {
+ q = arg[i] == '"' ? MA_DQUOTE : MA_SQUOTE;
+ if (state == MA_START) {
+ argv[argc] = argvs + j;
+ state = q;
+ } else if (state == MA_UNQUOTED)
+ state = q;
+ else if (state == q)
+ state = MA_UNQUOTED;
+ else
+ argvs[j++] = arg[i];
+ } else if (arg[i] == '\\') {
+ if (state == MA_SQUOTE || state == MA_DQUOTE) {
+ quot = state == MA_SQUOTE ? '\'' : '"';
+ /* Unescape quote we are in */
+ /* XXX support \n and friends? */
+ if (arg[i + 1] == quot) {
+ i++;
+ argvs[j++] = arg[i];
+ } else if (arg[i + 1] == '?' ||
+ arg[i + 1] == '[' || arg[i + 1] == '*') {
+ /*
+ * Special case for sftp: append
+ * double-escaped glob sequence -
+ * glob will undo one level of
+ * escaping. NB. string can grow here.
+ */
+ if (j >= sizeof(argvs) - 5)
+ goto args_too_longs;
+ argvs[j++] = '\\';
+ argvs[j++] = arg[i++];
+ argvs[j++] = '\\';
+ argvs[j++] = arg[i];
+ } else {
+ argvs[j++] = arg[i++];
+ argvs[j++] = arg[i];
+ }
+ } else {
+ if (state == MA_START) {
+ argv[argc] = argvs + j;
+ state = MA_UNQUOTED;
+ }
+ if (arg[i + 1] == '?' || arg[i + 1] == '[' ||
+ arg[i + 1] == '*' || arg[i + 1] == '\\') {
+ /*
+ * Special case for sftp: append
+ * escaped glob sequence -
+ * glob will undo one level of
+ * escaping.
+ */
+ argvs[j++] = arg[i++];
+ argvs[j++] = arg[i];
+ } else {
+ /* Unescape everything */
+ /* XXX support \n and friends? */
+ i++;
+ argvs[j++] = arg[i];
+ }
+ }
+ } else if (arg[i] == '#') {
+ if (state == MA_SQUOTE || state == MA_DQUOTE)
+ argvs[j++] = arg[i];
+ else
+ goto string_done;
+ } else if (arg[i] == '\0') {
+ if (state == MA_SQUOTE || state == MA_DQUOTE) {
+ error("Unterminated quoted argument");
+ return NULL;
+ }
+ string_done:
+ if (state == MA_UNQUOTED) {
+ argvs[j++] = '\0';
+ argc++;
+ }
+ break;
+ } else {
+ if (state == MA_START) {
+ argv[argc] = argvs + j;
+ state = MA_UNQUOTED;
+ }
+ if ((state == MA_SQUOTE || state == MA_DQUOTE) &&
+ (arg[i] == '?' || arg[i] == '[' || arg[i] == '*')) {
+ /*
+ * Special case for sftp: escape quoted
+ * glob(3) wildcards. NB. string can grow
+ * here.
+ */
+ if (j >= sizeof(argvs) - 3)
+ goto args_too_longs;
+ argvs[j++] = '\\';
+ argvs[j++] = arg[i];
+ } else
+ argvs[j++] = arg[i];
+ }
+ i++;
+ }
+ *argcp = argc;
+ return argv;
+}
+
+static int
+parse_args(const char **cpp, int *pflag, int *lflag, int *iflag, int *hflag,
unsigned long *n_arg, char **path1, char **path2)
{
const char *cmd, *cp = *cpp;
- char *cp2;
+ char *cp2, **argv;
int base = 0;
long l;
- int i, cmdnum;
+ int i, cmdnum, optidx, argc;
/* Skip leading whitespace */
cp = cp + strspn(cp, WHITESPACE);
cp++;
}
+ if ((argv = makeargv(cp, &argc)) == NULL)
+ return -1;
+
/* Figure out which command we have */
- for (i = 0; cmds[i].c; i++) {
- int cmdlen = strlen(cmds[i].c);
-
- /* Check for command followed by whitespace */
- if (!strncasecmp(cp, cmds[i].c, cmdlen) &&
- strchr(WHITESPACE, cp[cmdlen])) {
- cp += cmdlen;
- cp = cp + strspn(cp, WHITESPACE);
+ for (i = 0; cmds[i].c != NULL; i++) {
+ if (strcasecmp(cmds[i].c, argv[0]) == 0)
break;
- }
}
cmdnum = cmds[i].n;
cmd = cmds[i].c;
cmdnum = I_SHELL;
} else if (cmdnum == -1) {
error("Invalid command.");
- return (-1);
+ return -1;
}
/* Get arguments and parse flags */
- *lflag = *pflag = *n_arg = 0;
+ *lflag = *pflag = *hflag = *n_arg = 0;
*path1 = *path2 = NULL;
+ optidx = 1;
switch (cmdnum) {
case I_GET:
case I_PUT:
- if (parse_getput_flags(&cp, pflag))
- return(-1);
+ if ((optidx = parse_getput_flags(cmd, argv, argc, pflag)) == -1)
+ return -1;
/* Get first pathname (mandatory) */
- if (get_pathname(&cp, path1))
- return(-1);
- if (*path1 == NULL) {
+ if (argc - optidx < 1) {
error("You must specify at least one path after a "
"%s command.", cmd);
- return(-1);
+ return -1;
+ }
+ *path1 = xstrdup(argv[optidx]);
+ /* Get second pathname (optional) */
+ if (argc - optidx > 1) {
+ *path2 = xstrdup(argv[optidx + 1]);
+ /* Destination is not globbed */
+ undo_glob_escape(*path2);
}
- /* Try to get second pathname (optional) */
- if (get_pathname(&cp, path2))
- return(-1);
break;
case I_RENAME:
case I_SYMLINK:
- if (get_pathname(&cp, path1))
- return(-1);
- if (get_pathname(&cp, path2))
- return(-1);
- if (!*path1 || !*path2) {
+ if (argc - optidx < 2) {
error("You must specify two paths after a %s "
"command.", cmd);
- return(-1);
+ return -1;
}
+ *path1 = xstrdup(argv[optidx]);
+ *path2 = xstrdup(argv[optidx + 1]);
+ /* Paths are not globbed */
+ undo_glob_escape(*path1);
+ undo_glob_escape(*path2);
break;
case I_RM:
case I_MKDIR:
case I_LCHDIR:
case I_LMKDIR:
/* Get pathname (mandatory) */
- if (get_pathname(&cp, path1))
- return(-1);
- if (*path1 == NULL) {
+ if (argc - optidx < 1) {
error("You must specify a path after a %s command.",
cmd);
- return(-1);
+ return -1;
+ }
+ *path1 = xstrdup(argv[optidx]);
+ /* Only "rm" globs */
+ if (cmdnum != I_RM)
+ undo_glob_escape(*path1);
+ break;
+ case I_DF:
+ if ((optidx = parse_df_flags(cmd, argv, argc, hflag,
+ iflag)) == -1)
+ return -1;
+ /* Default to current directory if no path specified */
+ if (argc - optidx < 1)
+ *path1 = NULL;
+ else {
+ *path1 = xstrdup(argv[optidx]);
+ undo_glob_escape(*path1);
}
break;
case I_LS:
- if (parse_ls_flags(&cp, lflag))
+ if ((optidx = parse_ls_flags(argv, argc, lflag)) == -1)
return(-1);
/* Path is optional */
- if (get_pathname(&cp, path1))
- return(-1);
+ if (argc - optidx > 0)
+ *path1 = xstrdup(argv[optidx]);
break;
case I_LLS:
+ /* Skip ls command and following whitespace */
+ cp = cp + strlen(cmd) + strspn(cp, WHITESPACE);
case I_SHELL:
/* Uses the rest of the line */
break;
case I_LUMASK:
- base = 8;
case I_CHMOD:
base = 8;
case I_CHOWN:
case I_CHGRP:
/* Get numeric arg (mandatory) */
- l = strtol(cp, &cp2, base);
- if (cp2 == cp || ((l == LONG_MIN || l == LONG_MAX) &&
- errno == ERANGE) || l < 0) {
+ if (argc - optidx < 1)
+ goto need_num_arg;
+ errno = 0;
+ l = strtol(argv[optidx], &cp2, base);
+ if (cp2 == argv[optidx] || *cp2 != '\0' ||
+ ((l == LONG_MIN || l == LONG_MAX) && errno == ERANGE) ||
+ l < 0) {
+ need_num_arg:
error("You must supply a numeric argument "
"to the %s command.", cmd);
- return(-1);
+ return -1;
}
- cp = cp2;
*n_arg = l;
- if (cmdnum == I_LUMASK && strchr(WHITESPACE, *cp))
+ if (cmdnum == I_LUMASK)
break;
- if (cmdnum == I_LUMASK || !strchr(WHITESPACE, *cp)) {
- error("You must supply a numeric argument "
- "to the %s command.", cmd);
- return(-1);
- }
- cp += strspn(cp, WHITESPACE);
-
/* Get pathname (mandatory) */
- if (get_pathname(&cp, path1))
- return(-1);
- if (*path1 == NULL) {
+ if (argc - optidx < 2) {
error("You must specify a path after a %s command.",
cmd);
- return(-1);
+ return -1;
}
+ *path1 = xstrdup(argv[optidx + 1]);
break;
case I_QUIT:
case I_PWD:
int err_abort)
{
char *path1, *path2, *tmp;
- int pflag, lflag, iflag, cmdnum, i;
- unsigned long n_arg;
+ int pflag = 0, lflag = 0, iflag = 0, hflag = 0, cmdnum, i;
+ unsigned long n_arg = 0;
Attrib a, *aa;
char path_buf[MAXPATHLEN];
int err = 0;
glob_t g;
path1 = path2 = NULL;
- cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &n_arg,
+ cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &hflag, &n_arg,
&path1, &path2);
if (iflag != 0)
case I_RM:
path1 = make_absolute(path1, *pwd);
remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
- for (i = 0; g.gl_pathv[i]; i++) {
+ for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
printf("Removing %s\n", g.gl_pathv[i]);
err = do_rm(conn, g.gl_pathv[i]);
if (err != 0 && err_abort)
path1 = make_absolute(path1, *pwd);
err = do_globbed_ls(conn, path1, tmp, lflag);
break;
+ case I_DF:
+ /* Default to current directory if no path specified */
+ if (path1 == NULL)
+ path1 = xstrdup(*pwd);
+ path1 = make_absolute(path1, *pwd);
+ err = do_df(conn, path1, hflag, iflag);
+ break;
case I_LCHDIR:
if (chdir(path1) == -1) {
error("Couldn't change local directory to "
a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
a.perm = n_arg;
remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
- for (i = 0; g.gl_pathv[i]; i++) {
+ for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
printf("Changing mode on %s\n", g.gl_pathv[i]);
err = do_setstat(conn, g.gl_pathv[i], &a);
if (err != 0 && err_abort)
case I_CHGRP:
path1 = make_absolute(path1, *pwd);
remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
- for (i = 0; g.gl_pathv[i]; i++) {
+ for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) {
- if (err != 0 && err_abort)
+ if (err_abort) {
+ err = -1;
break;
- else
+ } else
continue;
}
if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) {
error("Can't get current ownership of "
"remote file \"%s\"", g.gl_pathv[i]);
- if (err != 0 && err_abort)
+ if (err_abort) {
+ err = -1;
break;
- else
+ } else
continue;
}
aa->flags &= SSH2_FILEXFER_ATTR_UIDGID;
return (0);
}
+#ifdef USE_LIBEDIT
+static char *
+prompt(EditLine *el)
+{
+ return ("sftp> ");
+}
+#endif
+
int
interactive_loop(int fd_in, int fd_out, char *file1, char *file2)
{
char *dir = NULL;
char cmd[2048];
struct sftp_conn *conn;
- int err;
+ int err, interactive;
+ EditLine *el = NULL;
+#ifdef USE_LIBEDIT
+ History *hl = NULL;
+ HistEvent hev;
+ extern char *__progname;
+
+ if (!batchmode && isatty(STDIN_FILENO)) {
+ if ((el = el_init(__progname, stdin, stdout, stderr)) == NULL)
+ fatal("Couldn't initialise editline");
+ if ((hl = history_init()) == NULL)
+ fatal("Couldn't initialise editline history");
+ history(hl, &hev, H_SETSIZE, 100);
+ el_set(el, EL_HIST, history, hl);
+
+ el_set(el, EL_PROMPT, prompt);
+ el_set(el, EL_EDITOR, "emacs");
+ el_set(el, EL_TERMINAL, NULL);
+ el_set(el, EL_SIGNAL, 1);
+ el_source(el, NULL);
+ }
+#endif /* USE_LIBEDIT */
conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests);
if (conn == NULL)
if (remote_is_dir(conn, dir) && file2 == NULL) {
printf("Changing to: %s\n", dir);
snprintf(cmd, sizeof cmd, "cd \"%s\"", dir);
- if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0)
+ if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0) {
+ xfree(dir);
+ xfree(pwd);
+ xfree(conn);
return (-1);
+ }
} else {
if (file2 == NULL)
snprintf(cmd, sizeof cmd, "get %s", dir);
err = parse_dispatch_command(conn, cmd, &pwd, 1);
xfree(dir);
xfree(pwd);
+ xfree(conn);
return (err);
}
xfree(dir);
}
-#if HAVE_SETVBUF
+#if defined(HAVE_SETVBUF) && !defined(BROKEN_SETVBUF)
setvbuf(stdout, NULL, _IOLBF, 0);
setvbuf(infile, NULL, _IOLBF, 0);
#else
- setlinebuf(stdout);
- setlinebuf(infile);
+ setlinebuf(stdout);
+ setlinebuf(infile);
#endif
+ interactive = !batchmode && isatty(STDIN_FILENO);
err = 0;
for (;;) {
char *cp;
- printf("sftp> ");
+ signal(SIGINT, SIG_IGN);
- /* XXX: use libedit */
- if (fgets(cmd, sizeof(cmd), infile) == NULL) {
- printf("\n");
- break;
- }
+ if (el == NULL) {
+ if (interactive)
+ printf("sftp> ");
+ if (fgets(cmd, sizeof(cmd), infile) == NULL) {
+ if (interactive)
+ printf("\n");
+ break;
+ }
+ if (!interactive) { /* Echo command */
+ printf("sftp> %s", cmd);
+ if (strlen(cmd) > 0 &&
+ cmd[strlen(cmd) - 1] != '\n')
+ printf("\n");
+ }
+ } else {
+#ifdef USE_LIBEDIT
+ const char *line;
+ int count = 0;
- if (batchmode) /* Echo command */
- printf("%s", cmd);
+ if ((line = el_gets(el, &count)) == NULL || count <= 0) {
+ printf("\n");
+ break;
+ }
+ history(hl, &hev, H_ENTER, line);
+ if (strlcpy(cmd, line, sizeof(cmd)) >= sizeof(cmd)) {
+ fprintf(stderr, "Error: input line too long\n");
+ continue;
+ }
+#endif /* USE_LIBEDIT */
+ }
cp = strrchr(cmd, '\n');
if (cp)
*cp = '\0';
+ /* Handle user interrupts gracefully during commands */
+ interrupted = 0;
+ signal(SIGINT, cmd_interrupt);
+
err = parse_dispatch_command(conn, cmd, &pwd, batchmode);
if (err != 0)
break;
}
xfree(pwd);
+ xfree(conn);
+
+#ifdef USE_LIBEDIT
+ if (el != NULL)
+ el_end(el);
+#endif /* USE_LIBEDIT */
/* err == 1 signifies normal "quit" exit */
return (err >= 0 ? 0 : -1);
}
-static void
-killchild(int signo)
-{
- if (sshpid > 1)
- kill(sshpid, signo);
-
- _exit(1);
-}
-
static void
connect_to_server(char *path, char **args, int *in, int *out)
{
if ((dup2(c_in, STDIN_FILENO) == -1) ||
(dup2(c_out, STDOUT_FILENO) == -1)) {
fprintf(stderr, "dup2: %s\n", strerror(errno));
- exit(1);
+ _exit(1);
}
close(*in);
close(*out);
close(c_in);
close(c_out);
- execv(path, args);
+
+ /*
+ * The underlying ssh is in the same process group, so we must
+ * ignore SIGINT if we want to gracefully abort commands,
+ * otherwise the signal will make it to the ssh process and
+ * kill it too
+ */
+ signal(SIGINT, SIG_IGN);
+ execvp(path, args);
fprintf(stderr, "exec: %s: %s\n", path, strerror(errno));
- exit(1);
+ _exit(1);
}
signal(SIGTERM, killchild);
"usage: %s [-1Cv] [-B buffer_size] [-b batchfile] [-F ssh_config]\n"
" [-o ssh_option] [-P sftp_server_path] [-R num_requests]\n"
" [-S program] [-s subsystem | sftp_server] host\n"
- " %s [[user@]host[:file [file]]]\n"
- " %s [[user@]host[:dir[/]]]\n"
+ " %s [user@]host[:file ...]\n"
+ " %s [user@]host[:dir[/]]\n"
" %s -b batchfile [user@]host\n", __progname, __progname, __progname, __progname);
exit(1);
}
main(int argc, char **argv)
{
int in, out, ch, err;
- char *host, *userhost, *cp, *file2;
+ char *host, *userhost, *cp, *file2 = NULL;
int debug_level = 0, sshver = 2;
char *file1 = NULL, *sftp_server = NULL;
char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL;
extern int optind;
extern char *optarg;
+ /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
+ sanitise_stdfd();
+
__progname = ssh_get_progname(argv[0]);
+ memset(&args, '\0', sizeof(args));
args.list = NULL;
- addargs(&args, "ssh"); /* overwritten with ssh_program */
+ addargs(&args, "%s", ssh_program);
addargs(&args, "-oForwardX11 no");
addargs(&args, "-oForwardAgent no");
+ addargs(&args, "-oPermitLocalCommand no");
addargs(&args, "-oClearAllForwardings yes");
ll = SYSLOG_LEVEL_INFO;
break;
case 'S':
ssh_program = optarg;
+ replacearg(&args, 0, "%s", ssh_program);
break;
case 'b':
if (batchmode)
fatal("Batch file already specified.");
/* Allow "-" as stdin */
- if (strcmp(optarg, "-") != 0 &&
- (infile = fopen(optarg, "r")) == NULL)
+ if (strcmp(optarg, "-") != 0 &&
+ (infile = fopen(optarg, "r")) == NULL)
fatal("%s (%s).", strerror(errno), optarg);
showprogress = 0;
batchmode = 1;
+ addargs(&args, "-obatchmode yes");
break;
case 'P':
sftp_direct = optarg;
fprintf(stderr, "Missing username\n");
usage();
}
- addargs(&args, "-l%s",userhost);
+ addargs(&args, "-l%s", userhost);
}
if ((cp = colon(host)) != NULL) {
addargs(&args, "%s", host);
addargs(&args, "%s", (sftp_server != NULL ?
sftp_server : "sftp"));
- args.list[0] = ssh_program;
if (!batchmode)
fprintf(stderr, "Connecting to %s...\n", host);
fprintf(stderr, "Attaching to %s...\n", sftp_direct);
connect_to_server(sftp_direct, args.list, &in, &out);
}
+ freeargs(&args);
err = interactive_loop(in, out, file1, file2);
#if !defined(USE_PIPES)
- shutdown(in, SHUT_RDWR);
- shutdown(out, SHUT_RDWR);
+ shutdown(in, SHUT_RDWR);
+ shutdown(out, SHUT_RDWR);
#endif
close(in);
andersk / gssapi-openssh.git / blobdiff