| /* $OpenBSD: sftp.c,v 1.112 2009/11/20 00:54:01 djm Exp $ */ |
| /* |
| * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org> |
| * |
| * Permission to use, copy, modify, and distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #include "includes.h" |
| |
| #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 HAVE_LIBGEN_H |
| #include <libgen.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 "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" |
| |
| #define DEFAULT_COPY_BUFLEN 32768 /* Size of buffer for up/download */ |
| #define DEFAULT_NUM_REQUESTS 64 /* # concurrent outstanding requests */ |
| |
| /* File to read commands from */ |
| FILE* infile; |
| |
| /* Are we in batchfile mode? */ |
| int batchmode = 0; |
| |
| /* PID of ssh transport process */ |
| static pid_t sshpid = -1; |
| |
| /* This is set to 0 if the progressmeter is not desired. */ |
| int showprogress = 1; |
| |
| /* When this option is set, we always recursively download/upload directories */ |
| int global_rflag = 0; |
| |
| /* When this option is set, the file transfers will always preserve times */ |
| int global_pflag = 0; |
| |
| /* 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 */ |
| |
| extern char *__progname; |
| |
| /* Separators for interactive commands */ |
| #define WHITESPACE " \t\r\n" |
| |
| /* 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 |
| #define I_LLS 8 |
| #define I_LMKDIR 9 |
| #define I_LPWD 10 |
| #define I_LS 11 |
| #define I_LUMASK 12 |
| #define I_MKDIR 13 |
| #define I_PUT 14 |
| #define I_PWD 15 |
| #define I_QUIT 16 |
| #define I_RENAME 17 |
| #define I_RM 18 |
| #define I_RMDIR 19 |
| #define I_SHELL 20 |
| #define I_SYMLINK 21 |
| #define I_VERSION 22 |
| #define I_PROGRESS 23 |
| |
| struct CMD { |
| const char *c; |
| const int n; |
| }; |
| |
| static const struct CMD cmds[] = { |
| { "bye", I_QUIT }, |
| { "cd", I_CHDIR }, |
| { "chdir", I_CHDIR }, |
| { "chgrp", I_CHGRP }, |
| { "chmod", I_CHMOD }, |
| { "chown", I_CHOWN }, |
| { "df", I_DF }, |
| { "dir", I_LS }, |
| { "exit", I_QUIT }, |
| { "get", I_GET }, |
| { "mget", I_GET }, |
| { "help", I_HELP }, |
| { "lcd", I_LCHDIR }, |
| { "lchdir", I_LCHDIR }, |
| { "lls", I_LLS }, |
| { "lmkdir", I_LMKDIR }, |
| { "ln", I_SYMLINK }, |
| { "lpwd", I_LPWD }, |
| { "ls", I_LS }, |
| { "lumask", I_LUMASK }, |
| { "mkdir", I_MKDIR }, |
| { "progress", I_PROGRESS }, |
| { "put", I_PUT }, |
| { "mput", I_PUT }, |
| { "pwd", I_PWD }, |
| { "quit", I_QUIT }, |
| { "rename", I_RENAME }, |
| { "rm", I_RM }, |
| { "rmdir", I_RMDIR }, |
| { "symlink", I_SYMLINK }, |
| { "version", I_VERSION }, |
| { "!", I_SHELL }, |
| { "?", I_HELP }, |
| { NULL, -1} |
| }; |
| |
| int interactive_loop(struct sftp_conn *, 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" |
| "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 [-Pr] 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 [-Pr] 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 |
| local_do_shell(const char *args) |
| { |
| int status; |
| char *shell; |
| pid_t pid; |
| |
| if (!*args) |
| args = NULL; |
| |
| if ((shell = getenv("SHELL")) == NULL) |
| shell = _PATH_BSHELL; |
| |
| if ((pid = fork()) == -1) |
| fatal("Couldn't fork: %s", strerror(errno)); |
| |
| if (pid == 0) { |
| /* XXX: child has pipe fds to ssh subproc open - issue? */ |
| if (args) { |
| debug3("Executing %s -c \"%s\"", shell, args); |
| execl(shell, shell, "-c", args, (char *)NULL); |
| } else { |
| debug3("Executing %s", shell); |
| execl(shell, shell, (char *)NULL); |
| } |
| fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell, |
| strerror(errno)); |
| _exit(1); |
| } |
| while (waitpid(pid, &status, 0) == -1) |
| if (errno != EINTR) |
| fatal("Couldn't wait for child: %s", strerror(errno)); |
| if (!WIFEXITED(status)) |
| error("Shell exited abnormally"); |
| else if (WEXITSTATUS(status)) |
| error("Shell exited with status %d", WEXITSTATUS(status)); |
| } |
| |
| static void |
| local_do_ls(const char *args) |
| { |
| if (!args || !*args) |
| local_do_shell(_PATH_LS); |
| else { |
| int len = strlen(_PATH_LS " ") + strlen(args) + 1; |
| char *buf = xmalloc(len); |
| |
| /* XXX: quoting - rip quoting code from ftp? */ |
| snprintf(buf, len, _PATH_LS " %s", args); |
| local_do_shell(buf); |
| xfree(buf); |
| } |
| } |
| |
| /* Strip one path (usually the pwd) from the start of another */ |
| static char * |
| path_strip(char *path, char *strip) |
| { |
| size_t len; |
| |
| if (strip == NULL) |
| return (xstrdup(path)); |
| |
| len = strlen(strip); |
| if (strncmp(path, strip, len) == 0) { |
| if (strip[len - 1] != '/' && path[len] == '/') |
| len++; |
| return (xstrdup(path + len)); |
| } |
| |
| return (xstrdup(path)); |
| } |
| |
| static char * |
| make_absolute(char *p, char *pwd) |
| { |
| char *abs_str; |
| |
| /* Derelativise */ |
| if (p && p[0] != '/') { |
| abs_str = path_append(pwd, p); |
| xfree(p); |
| return(abs_str); |
| } else |
| return(p); |
| } |
| |
| static int |
| parse_getput_flags(const char *cmd, char **argv, int argc, int *pflag, |
| int *rflag) |
| { |
| extern int opterr, optind, optopt, optreset; |
| int ch; |
| |
| optind = optreset = 1; |
| opterr = 0; |
| |
| *rflag = *pflag = 0; |
| while ((ch = getopt(argc, argv, "PpRr")) != -1) { |
| switch (ch) { |
| case 'p': |
| case 'P': |
| *pflag = 1; |
| break; |
| case 'r': |
| case 'R': |
| *rflag = 1; |
| break; |
| default: |
| error("%s: Invalid flag -%c", cmd, optopt); |
| return -1; |
| } |
| } |
| |
| return optind; |
| } |
| |
| static int |
| parse_ls_flags(char **argv, int argc, int *lflag) |
| { |
| 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; |
| } |
| } |
| |
| return optind; |
| } |
| |
| static int |
| parse_df_flags(const char *cmd, char **argv, int argc, int *hflag, int *iflag) |
| { |
| extern int opterr, optind, optopt, optreset; |
| int ch; |
| |
| optind = optreset = 1; |
| opterr = 0; |
| |
| *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; |
| } |
| } |
| |
| return optind; |
| } |
| |
| static int |
| is_dir(char *path) |
| { |
| struct stat sb; |
| |
| /* XXX: report errors? */ |
| if (stat(path, &sb) == -1) |
| return(0); |
| |
| return(S_ISDIR(sb.st_mode)); |
| } |
| |
| static int |
| remote_is_dir(struct sftp_conn *conn, char *path) |
| { |
| Attrib *a; |
| |
| /* XXX: report errors? */ |
| if ((a = do_stat(conn, path, 1)) == NULL) |
| return(0); |
| if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) |
| return(0); |
| return(S_ISDIR(a->perm)); |
| } |
| |
| /* Check whether path returned from glob(..., GLOB_MARK, ...) is a directory */ |
| static int |
| pathname_is_dir(char *pathname) |
| { |
| size_t l = strlen(pathname); |
| |
| return l > 0 && pathname[l - 1] == '/'; |
| } |
| |
| static int |
| process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, |
| int pflag, int rflag) |
| { |
| char *abs_src = NULL; |
| char *abs_dst = NULL; |
| glob_t g; |
| char *filename, *tmp=NULL; |
| int i, err = 0; |
| |
| abs_src = xstrdup(src); |
| abs_src = make_absolute(abs_src, pwd); |
| memset(&g, 0, sizeof(g)); |
| |
| debug3("Looking up %s", abs_src); |
| if (remote_glob(conn, abs_src, GLOB_MARK, NULL, &g)) { |
| error("File \"%s\" not found.", abs_src); |
| err = -1; |
| goto out; |
| } |
| |
| /* |
| * If multiple matches then dst must be a directory or |
| * unspecified. |
| */ |
| if (g.gl_matchc > 1 && dst != NULL && !is_dir(dst)) { |
| error("Multiple source paths, but destination " |
| "\"%s\" is not a directory", dst); |
| err = -1; |
| goto out; |
| } |
| |
| for (i = 0; g.gl_pathv[i] && !interrupted; i++) { |
| tmp = xstrdup(g.gl_pathv[i]); |
| if ((filename = basename(tmp)) == NULL) { |
| error("basename %s: %s", tmp, strerror(errno)); |
| xfree(tmp); |
| err = -1; |
| goto out; |
| } |
| |
| if (g.gl_matchc == 1 && dst) { |
| if (is_dir(dst)) { |
| abs_dst = path_append(dst, filename); |
| } else { |
| abs_dst = xstrdup(dst); |
| } |
| } else if (dst) { |
| abs_dst = path_append(dst, filename); |
| } else { |
| abs_dst = xstrdup(filename); |
| } |
| xfree(tmp); |
| |
| printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst); |
| if (pathname_is_dir(g.gl_pathv[i]) && (rflag || global_rflag)) { |
| if (download_dir(conn, g.gl_pathv[i], abs_dst, NULL, |
| pflag || global_pflag, 1) == -1) |
| err = -1; |
| } else { |
| if (do_download(conn, g.gl_pathv[i], abs_dst, NULL, |
| pflag || global_pflag) == -1) |
| err = -1; |
| } |
| xfree(abs_dst); |
| abs_dst = NULL; |
| } |
| |
| out: |
| xfree(abs_src); |
| globfree(&g); |
| return(err); |
| } |
| |
| static int |
| process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, |
| int pflag, int rflag) |
| { |
| char *tmp_dst = NULL; |
| char *abs_dst = NULL; |
| char *tmp = NULL, *filename = NULL; |
| glob_t g; |
| int err = 0; |
| int i, dst_is_dir = 1; |
| struct stat sb; |
| |
| if (dst) { |
| tmp_dst = xstrdup(dst); |
| tmp_dst = make_absolute(tmp_dst, pwd); |
| } |
| |
| memset(&g, 0, sizeof(g)); |
| debug3("Looking up %s", src); |
| if (glob(src, GLOB_NOCHECK | GLOB_MARK, NULL, &g)) { |
| error("File \"%s\" not found.", src); |
| err = -1; |
| goto out; |
| } |
| |
| /* If we aren't fetching to pwd then stash this status for later */ |
| if (tmp_dst != NULL) |
| dst_is_dir = remote_is_dir(conn, tmp_dst); |
| |
| /* If multiple matches, dst may be directory or unspecified */ |
| if (g.gl_matchc > 1 && tmp_dst && !dst_is_dir) { |
| error("Multiple paths match, but destination " |
| "\"%s\" is not a directory", tmp_dst); |
| err = -1; |
| goto out; |
| } |
| |
| 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; |
| } |
| |
| tmp = xstrdup(g.gl_pathv[i]); |
| if ((filename = basename(tmp)) == NULL) { |
| error("basename %s: %s", tmp, strerror(errno)); |
| xfree(tmp); |
| err = -1; |
| goto out; |
| } |
| |
| if (g.gl_matchc == 1 && tmp_dst) { |
| /* If directory specified, append filename */ |
| if (dst_is_dir) |
| abs_dst = path_append(tmp_dst, filename); |
| else |
| abs_dst = xstrdup(tmp_dst); |
| } else if (tmp_dst) { |
| abs_dst = path_append(tmp_dst, filename); |
| } else { |
| abs_dst = make_absolute(xstrdup(filename), pwd); |
| } |
| xfree(tmp); |
| |
| printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst); |
| if (pathname_is_dir(g.gl_pathv[i]) && (rflag || global_rflag)) { |
| if (upload_dir(conn, g.gl_pathv[i], abs_dst, |
| pflag || global_pflag, 1) == -1) |
| err = -1; |
| } else { |
| if (do_upload(conn, g.gl_pathv[i], abs_dst, |
| pflag || global_pflag) == -1) |
| err = -1; |
| } |
| } |
| |
| out: |
| if (abs_dst) |
| xfree(abs_dst); |
| if (tmp_dst) |
| xfree(tmp_dst); |
| globfree(&g); |
| return(err); |
| } |
| |
| static int |
| sdirent_comp(const void *aa, const void *bb) |
| { |
| SFTP_DIRENT *a = *(SFTP_DIRENT **)aa; |
| SFTP_DIRENT *b = *(SFTP_DIRENT **)bb; |
| int rmul = sort_flag & LS_REVERSE_SORT ? -1 : 1; |
| |
| #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; |
| u_int c = 1, colspace = 0, columns = 1; |
| SFTP_DIRENT **d; |
| |
| if ((n = do_readdir(conn, path, &d)) != 0) |
| return (n); |
| |
| 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++) { |
| 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); |
| m += strlen(tmp); |
| xfree(tmp); |
| |
| if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1) |
| width = ws.ws_col; |
| |
| columns = width / (m + 2); |
| columns = MAX(columns, 1); |
| colspace = width / columns; |
| colspace = MIN(colspace, width); |
| } |
| |
| 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 && !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 & 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); |
| } else |
| printf("%s\n", d[n]->longname); |
| } else { |
| printf("%-*s", colspace, fname); |
| if (c >= columns) { |
| printf("\n"); |
| c = 1; |
| } else |
| c++; |
| } |
| |
| xfree(fname); |
| } |
| |
| if (!(lflag & LS_LONG_VIEW) && (c != 1)) |
| printf("\n"); |
| |
| free_sftp_dirents(d); |
| return (0); |
| } |
| |
| /* sftp ls.1 replacement which handles path globs */ |
| static int |
| do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path, |
| int lflag) |
| { |
| glob_t g; |
| 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) || (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 and it is a directory, |
| * then just list its contents. |
| */ |
| 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 (err); |
| } |
| } |
| |
| if (!(lflag & LS_SHORT_VIEW)) { |
| u_int m = 0, width = 80; |
| struct winsize ws; |
| |
| /* Count entries for sort and find longest filename */ |
| for (i = 0; g.gl_pathv[i]; i++) |
| m = MAX(m, strlen(g.gl_pathv[i])); |
| |
| if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1) |
| width = ws.ws_col; |
| |
| columns = width / (m + 2); |
| columns = MAX(columns, 1); |
| colspace = width / columns; |
| } |
| |
| for (i = 0; g.gl_pathv[i] && !interrupted; i++, a = NULL) { |
| char *fname; |
| |
| fname = path_strip(g.gl_pathv[i], strip_path); |
| |
| if (lflag & LS_LONG_VIEW) { |
| char *lname; |
| struct stat sb; |
| |
| /* |
| * XXX: this is slow - 1 roundtrip per path |
| * A solution to this is to fork glob() and |
| * build a sftp specific version which keeps the |
| * attribs (which currently get thrown away) |
| * that the server returns as well as the filenames. |
| */ |
| memset(&sb, 0, sizeof(sb)); |
| 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); |
| printf("%s\n", lname); |
| xfree(lname); |
| } else { |
| printf("%-*s", colspace, fname); |
| if (c >= columns) { |
| printf("\n"); |
| c = 1; |
| } else |
| c++; |
| } |
| xfree(fname); |
| } |
| |
| if (!(lflag & LS_LONG_VIEW) && (c != 1)) |
| printf("\n"); |
| |
| out: |
| if (g.gl_pathc) |
| globfree(&g); |
| |
| return (0); |
| } |
| |
| static int |
| 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 *rflag, int *lflag, int *iflag, int *hflag, |
| unsigned long *n_arg, char **path1, char **path2) |
| { |
| const char *cmd, *cp = *cpp; |
| char *cp2, **argv; |
| int base = 0; |
| long l; |
| int i, cmdnum, optidx, argc; |
| |
| /* Skip leading whitespace */ |
| cp = cp + strspn(cp, WHITESPACE); |
| |
| /* Ignore blank lines and lines which begin with comment '#' char */ |
| if (*cp == '\0' || *cp == '#') |
| return (0); |
| |
| /* Check for leading '-' (disable error processing) */ |
| *iflag = 0; |
| if (*cp == '-') { |
| *iflag = 1; |
| cp++; |
| } |
| |
| if ((argv = makeargv(cp, &argc)) == NULL) |
| return -1; |
| |
| /* Figure out which command we have */ |
| 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; |
| |
| /* Special case */ |
| if (*cp == '!') { |
| cp++; |
| cmdnum = I_SHELL; |
| } else if (cmdnum == -1) { |
| error("Invalid command."); |
| return -1; |
| } |
| |
| /* Get arguments and parse flags */ |
| *lflag = *pflag = *rflag = *hflag = *n_arg = 0; |
| *path1 = *path2 = NULL; |
| optidx = 1; |
| switch (cmdnum) { |
| case I_GET: |
| case I_PUT: |
| if ((optidx = parse_getput_flags(cmd, argv, argc, pflag, rflag)) == -1) |
| return -1; |
| /* Get first pathname (mandatory) */ |
| if (argc - optidx < 1) { |
| error("You must specify at least one path after a " |
| "%s command.", cmd); |
| 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); |
| } |
| break; |
| case I_RENAME: |
| case I_SYMLINK: |
| if (argc - optidx < 2) { |
| error("You must specify two paths after a %s " |
| "command.", cmd); |
| 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_RMDIR: |
| case I_CHDIR: |
| case I_LCHDIR: |
| case I_LMKDIR: |
| /* Get pathname (mandatory) */ |
| if (argc - optidx < 1) { |
| error("You must specify a path after a %s command.", |
| cmd); |
| 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 ((optidx = parse_ls_flags(argv, argc, lflag)) == -1) |
| return(-1); |
| /* Path is optional */ |
| 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: |
| case I_CHMOD: |
| base = 8; |
| case I_CHOWN: |
| case I_CHGRP: |
| /* Get numeric arg (mandatory) */ |
| 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; |
| } |
| *n_arg = l; |
| if (cmdnum == I_LUMASK) |
| break; |
| /* Get pathname (mandatory) */ |
| if (argc - optidx < 2) { |
| error("You must specify a path after a %s command.", |
| cmd); |
| return -1; |
| } |
| *path1 = xstrdup(argv[optidx + 1]); |
| break; |
| case I_QUIT: |
| case I_PWD: |
| case I_LPWD: |
| case I_HELP: |
| case I_VERSION: |
| case I_PROGRESS: |
| break; |
| default: |
| fatal("Command not implemented"); |
| } |
| |
| *cpp = cp; |
| return(cmdnum); |
| } |
| |
| static int |
| parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd, |
| int err_abort) |
| { |
| char *path1, *path2, *tmp; |
| int pflag = 0, rflag = 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, &rflag, &lflag, &iflag, &hflag, &n_arg, |
| &path1, &path2); |
| |
| if (iflag != 0) |
| err_abort = 0; |
| |
| memset(&g, 0, sizeof(g)); |
| |
| /* Perform command */ |
| switch (cmdnum) { |
| case 0: |
| /* Blank line */ |
| break; |
| case -1: |
| /* Unrecognized command */ |
| err = -1; |
| break; |
| case I_GET: |
| err = process_get(conn, path1, path2, *pwd, pflag, rflag); |
| break; |
| case I_PUT: |
| err = process_put(conn, path1, path2, *pwd, pflag, rflag); |
| break; |
| case I_RENAME: |
| path1 = make_absolute(path1, *pwd); |
| path2 = make_absolute(path2, *pwd); |
| err = do_rename(conn, path1, path2); |
| break; |
| case I_SYMLINK: |
| path2 = make_absolute(path2, *pwd); |
| err = do_symlink(conn, path1, path2); |
| break; |
| case I_RM: |
| path1 = make_absolute(path1, *pwd); |
| remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); |
| 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) |
| break; |
| } |
| break; |
| case I_MKDIR: |
| path1 = make_absolute(path1, *pwd); |
| attrib_clear(&a); |
| a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS; |
| a.perm = 0777; |
| err = do_mkdir(conn, path1, &a, 1); |
| break; |
| case I_RMDIR: |
| path1 = make_absolute(path1, *pwd); |
| err = do_rmdir(conn, path1); |
| break; |
| case I_CHDIR: |
| path1 = make_absolute(path1, *pwd); |
| if ((tmp = do_realpath(conn, path1)) == NULL) { |
| err = 1; |
| break; |
| } |
| if ((aa = do_stat(conn, tmp, 0)) == NULL) { |
| xfree(tmp); |
| err = 1; |
| break; |
| } |
| if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) { |
| error("Can't change directory: Can't check target"); |
| xfree(tmp); |
| err = 1; |
| break; |
| } |
| if (!S_ISDIR(aa->perm)) { |
| error("Can't change directory: \"%s\" is not " |
| "a directory", tmp); |
| xfree(tmp); |
| err = 1; |
| break; |
| } |
| xfree(*pwd); |
| *pwd = tmp; |
| break; |
| case I_LS: |
| if (!path1) { |
| do_globbed_ls(conn, *pwd, *pwd, lflag); |
| break; |
| } |
| |
| /* Strip pwd off beginning of non-absolute paths */ |
| tmp = NULL; |
| if (*path1 != '/') |
| tmp = *pwd; |
| |
| 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 " |
| "\"%s\": %s", path1, strerror(errno)); |
| err = 1; |
| } |
| break; |
| case I_LMKDIR: |
| if (mkdir(path1, 0777) == -1) { |
| error("Couldn't create local directory " |
| "\"%s\": %s", path1, strerror(errno)); |
| err = 1; |
| } |
| break; |
| case I_LLS: |
| local_do_ls(cmd); |
| break; |
| case I_SHELL: |
| local_do_shell(cmd); |
| break; |
| case I_LUMASK: |
| umask(n_arg); |
| printf("Local umask: %03lo\n", n_arg); |
| break; |
| case I_CHMOD: |
| path1 = make_absolute(path1, *pwd); |
| attrib_clear(&a); |
| 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] && !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) |
| break; |
| } |
| break; |
| case I_CHOWN: |
| case I_CHGRP: |
| path1 = make_absolute(path1, *pwd); |
| remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g); |
| for (i = 0; g.gl_pathv[i] && !interrupted; i++) { |
| if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) { |
| if (err_abort) { |
| err = -1; |
| break; |
| } 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_abort) { |
| err = -1; |
| break; |
| } else |
| continue; |
| } |
| aa->flags &= SSH2_FILEXFER_ATTR_UIDGID; |
| if (cmdnum == I_CHOWN) { |
| printf("Changing owner on %s\n", g.gl_pathv[i]); |
| aa->uid = n_arg; |
| } else { |
| printf("Changing group on %s\n", g.gl_pathv[i]); |
| aa->gid = n_arg; |
| } |
| err = do_setstat(conn, g.gl_pathv[i], aa); |
| if (err != 0 && err_abort) |
| break; |
| } |
| break; |
| case I_PWD: |
| printf("Remote working directory: %s\n", *pwd); |
| break; |
| case I_LPWD: |
| if (!getcwd(path_buf, sizeof(path_buf))) { |
| error("Couldn't get local cwd: %s", strerror(errno)); |
| err = -1; |
| break; |
| } |
| printf("Local working directory: %s\n", path_buf); |
| break; |
| case I_QUIT: |
| /* Processed below */ |
| break; |
| case I_HELP: |
| help(); |
| break; |
| case I_VERSION: |
| printf("SFTP protocol version %u\n", sftp_proto_version(conn)); |
| break; |
| case I_PROGRESS: |
| showprogress = !showprogress; |
| if (showprogress) |
| printf("Progress meter enabled\n"); |
| else |
| printf("Progress meter disabled\n"); |
| break; |
| default: |
| fatal("%d is not implemented", cmdnum); |
| } |
| |
| if (g.gl_pathc) |
| globfree(&g); |
| if (path1) |
| xfree(path1); |
| if (path2) |
| xfree(path2); |
| |
| /* If an unignored error occurs in batch mode we should abort. */ |
| if (err_abort && err != 0) |
| return (-1); |
| else if (cmdnum == I_QUIT) |
| return (1); |
| |
| return (0); |
| } |
| |
| #ifdef USE_LIBEDIT |
| static char * |
| prompt(EditLine *el) |
| { |
| return ("sftp> "); |
| } |
| #endif |
| |
| int |
| interactive_loop(struct sftp_conn *conn, char *file1, char *file2) |
| { |
| char *pwd; |
| char *dir = NULL; |
| char cmd[2048]; |
| 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 */ |
| |
| pwd = do_realpath(conn, "."); |
| if (pwd == NULL) |
| fatal("Need cwd"); |
| |
| if (file1 != NULL) { |
| dir = xstrdup(file1); |
| dir = make_absolute(dir, pwd); |
| |
| 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) { |
| xfree(dir); |
| xfree(pwd); |
| xfree(conn); |
| return (-1); |
| } |
| } else { |
| if (file2 == NULL) |
| snprintf(cmd, sizeof cmd, "get %s", dir); |
| else |
| snprintf(cmd, sizeof cmd, "get %s %s", dir, |
| file2); |
| |
| err = parse_dispatch_command(conn, cmd, &pwd, 1); |
| xfree(dir); |
| xfree(pwd); |
| xfree(conn); |
| return (err); |
| } |
| xfree(dir); |
| } |
| |
| #if defined(HAVE_SETVBUF) && !defined(BROKEN_SETVBUF) |
| setvbuf(stdout, NULL, _IOLBF, 0); |
| setvbuf(infile, NULL, _IOLBF, 0); |
| #else |
| setlinebuf(stdout); |
| setlinebuf(infile); |
| #endif |
| |
| interactive = !batchmode && isatty(STDIN_FILENO); |
| err = 0; |
| for (;;) { |
| char *cp; |
| |
| signal(SIGINT, SIG_IGN); |
| |
| 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 ((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 |
| connect_to_server(char *path, char **args, int *in, int *out) |
| { |
| int c_in, c_out; |
| |
| #ifdef USE_PIPES |
| int pin[2], pout[2]; |
| |
| if ((pipe(pin) == -1) || (pipe(pout) == -1)) |
| fatal("pipe: %s", strerror(errno)); |
| *in = pin[0]; |
| *out = pout[1]; |
| c_in = pout[0]; |
| c_out = pin[1]; |
| #else /* USE_PIPES */ |
| int inout[2]; |
| |
| if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1) |
| fatal("socketpair: %s", strerror(errno)); |
| *in = *out = inout[0]; |
| c_in = c_out = inout[1]; |
| #endif /* USE_PIPES */ |
| |
| if ((sshpid = fork()) == -1) |
| fatal("fork: %s", strerror(errno)); |
| else if (sshpid == 0) { |
| if ((dup2(c_in, STDIN_FILENO) == -1) || |
| (dup2(c_out, STDOUT_FILENO) == -1)) { |
| fprintf(stderr, "dup2: %s\n", strerror(errno)); |
| _exit(1); |
| } |
| close(*in); |
| close(*out); |
| close(c_in); |
| close(c_out); |
| |
| /* |
| * 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); |
| } |
| |
| signal(SIGTERM, killchild); |
| signal(SIGINT, killchild); |
| signal(SIGHUP, killchild); |
| close(c_in); |
| close(c_out); |
| } |
| |
| static void |
| usage(void) |
| { |
| extern char *__progname; |
| |
| fprintf(stderr, |
| "usage: %s [-1246Cpqrv] [-B buffer_size] [-b batchfile] [-c cipher]\n" |
| " [-D sftp_server_path] [-F ssh_config] " |
| "[-i identity_file]\n" |
| " [-o ssh_option] [-P port] [-R num_requests] " |
| "[-S program]\n" |
| " [-s subsystem | sftp_server] host\n" |
| " %s [user@]host[:file ...]\n" |
| " %s [user@]host[:dir[/]]\n" |
| " %s -b batchfile [user@]host\n", |
| __progname, __progname, __progname, __progname); |
| exit(1); |
| } |
| |
| int |
| main(int argc, char **argv) |
| { |
| int in, out, ch, err; |
| 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; |
| LogLevel ll = SYSLOG_LEVEL_INFO; |
| arglist args; |
| extern int optind; |
| extern char *optarg; |
| struct sftp_conn *conn; |
| size_t copy_buffer_len = DEFAULT_COPY_BUFLEN; |
| size_t num_requests = DEFAULT_NUM_REQUESTS; |
| |
| /* 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, "%s", ssh_program); |
| addargs(&args, "-oForwardX11 no"); |
| addargs(&args, "-oForwardAgent no"); |
| addargs(&args, "-oPermitLocalCommand no"); |
| addargs(&args, "-oClearAllForwardings yes"); |
| |
| ll = SYSLOG_LEVEL_INFO; |
| infile = stdin; |
| |
| while ((ch = getopt(argc, argv, |
| "1246hqrvCc:D:i:o:s:S:b:B:F:P:R:")) != -1) { |
| switch (ch) { |
| /* Passed through to ssh(1) */ |
| case '4': |
| case '6': |
| case 'C': |
| addargs(&args, "-%c", ch); |
| break; |
| /* Passed through to ssh(1) with argument */ |
| case 'F': |
| case 'c': |
| case 'i': |
| case 'o': |
| addargs(&args, "-%c%s", ch, optarg); |
| break; |
| case 'q': |
| showprogress = 0; |
| addargs(&args, "-%c", ch); |
| break; |
| case 'P': |
| addargs(&args, "-oPort %s", optarg); |
| break; |
| case 'v': |
| if (debug_level < 3) { |
| addargs(&args, "-v"); |
| ll = SYSLOG_LEVEL_DEBUG1 + debug_level; |
| } |
| debug_level++; |
| break; |
| case '1': |
| sshver = 1; |
| if (sftp_server == NULL) |
| sftp_server = _PATH_SFTP_SERVER; |
| break; |
| case '2': |
| sshver = 2; |
| break; |
| case 'B': |
| copy_buffer_len = strtol(optarg, &cp, 10); |
| if (copy_buffer_len == 0 || *cp != '\0') |
| fatal("Invalid buffer size \"%s\"", optarg); |
| break; |
| case 'b': |
| if (batchmode) |
| fatal("Batch file already specified."); |
| |
| /* Allow "-" as stdin */ |
| 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': |
| global_pflag = 1; |
| break; |
| case 'D': |
| sftp_direct = optarg; |
| break; |
| case 'r': |
| global_rflag = 1; |
| break; |
| case 'R': |
| num_requests = strtol(optarg, &cp, 10); |
| if (num_requests == 0 || *cp != '\0') |
| fatal("Invalid number of requests \"%s\"", |
| optarg); |
| break; |
| case 's': |
| sftp_server = optarg; |
| break; |
| case 'S': |
| ssh_program = optarg; |
| replacearg(&args, 0, "%s", ssh_program); |
| break; |
| case 'h': |
| default: |
| usage(); |
| } |
| } |
| |
| if (!isatty(STDERR_FILENO)) |
| showprogress = 0; |
| |
| log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1); |
| |
| if (sftp_direct == NULL) { |
| if (optind == argc || argc > (optind + 2)) |
| usage(); |
| |
| userhost = xstrdup(argv[optind]); |
| file2 = argv[optind+1]; |
| |
| if ((host = strrchr(userhost, '@')) == NULL) |
| host = userhost; |
| else { |
| *host++ = '\0'; |
| if (!userhost[0]) { |
| fprintf(stderr, "Missing username\n"); |
| usage(); |
| } |
| addargs(&args, "-l%s", userhost); |
| } |
| |
| if ((cp = colon(host)) != NULL) { |
| *cp++ = '\0'; |
| file1 = cp; |
| } |
| |
| host = cleanhostname(host); |
| if (!*host) { |
| fprintf(stderr, "Missing hostname\n"); |
| usage(); |
| } |
| |
| addargs(&args, "-oProtocol %d", sshver); |
| |
| /* no subsystem if the server-spec contains a '/' */ |
| if (sftp_server == NULL || strchr(sftp_server, '/') == NULL) |
| addargs(&args, "-s"); |
| |
| addargs(&args, "%s", host); |
| addargs(&args, "%s", (sftp_server != NULL ? |
| sftp_server : "sftp")); |
| |
| connect_to_server(ssh_program, args.list, &in, &out); |
| } else { |
| args.list = NULL; |
| addargs(&args, "sftp-server"); |
| |
| connect_to_server(sftp_direct, args.list, &in, &out); |
| } |
| freeargs(&args); |
| |
| conn = do_init(in, out, copy_buffer_len, num_requests); |
| if (conn == NULL) |
| fatal("Couldn't initialise connection to server"); |
| |
| if (!batchmode) { |
| if (sftp_direct == NULL) |
| fprintf(stderr, "Connected to %s.\n", host); |
| else |
| fprintf(stderr, "Attached to %s.\n", sftp_direct); |
| } |
| |
| err = interactive_loop(conn, file1, file2); |
| |
| #if !defined(USE_PIPES) |
| shutdown(in, SHUT_RDWR); |
| shutdown(out, SHUT_RDWR); |
| #endif |
| |
| close(in); |
| close(out); |
| if (batchmode) |
| fclose(infile); |
| |
| while (waitpid(sshpid, NULL, 0) == -1) |
| if (errno != EINTR) |
| fatal("Couldn't wait for ssh process: %s", |
| strerror(errno)); |
| |
| exit(err == 0 ? 0 : 1); |
| } |