X-Git-Url: http://andersk.mit.edu/gitweb/openssh.git/blobdiff_plain/aa2eae64b7a74e7293a673f5dc101189b5342668..HEAD:/sftp.c diff --git a/sftp.c b/sftp.c index 4e170ee6..d65d4ec6 100644 --- a/sftp.c +++ b/sftp.c @@ -1,3 +1,4 @@ +/* $OpenBSD: sftp.c,v 1.123 2010/01/27 19:21:39 djm Exp $ */ /* * Copyright (c) 2001-2004 Damien Miller * @@ -15,55 +16,91 @@ */ #include "includes.h" -RCSID("$OpenBSD: sftp.c,v 1.73 2006/02/10 01:44:27 stevesk Exp $"); -#include #include +#include +#ifdef HAVE_SYS_STAT_H +# include +#endif +#include +#include #include +#ifdef HAVE_SYS_STATVFS_H +#include +#endif + +#include +#include #ifdef HAVE_PATHS_H # include #endif +#ifdef HAVE_LIBGEN_H +#include +#endif #ifdef USE_LIBEDIT #include #else typedef void EditLine; #endif +#include +#include +#include +#include +#include +#include + +#ifdef HAVE_UTIL_H +# include +#endif + +#ifdef HAVE_LIBUTIL_H +# include +#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" +#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; -/* Size of buffer used when copying files */ -size_t copy_buffer_len = 32768; - -/* Number of concurrent outstanding requests */ -size_t num_requests = 16; - /* 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; +/* Context used for commandline completion */ +struct complete_ctx { + struct sftp_conn *conn; + char **remote_pathp; +}; + int remote_glob(struct sftp_conn *, const char *, int, int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */ @@ -73,16 +110,17 @@ extern char *__progname; #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 LS_LONG_VIEW 0x0001 /* Full view ala ls -l */ +#define LS_SHORT_VIEW 0x0002 /* Single row view ala ls -1 */ +#define LS_NUMERIC_VIEW 0x0004 /* Long view with numeric uid/gid */ +#define LS_NAME_SORT 0x0008 /* Sort by name (default) */ +#define LS_TIME_SORT 0x0010 /* Sort by mtime */ +#define LS_SIZE_SORT 0x0020 /* Sort by file size */ +#define LS_REVERSE_SORT 0x0040 /* Reverse sort order */ +#define LS_SHOW_ALL 0x0080 /* Don't skip filenames starting with '.' */ +#define LS_SI_UNITS 0x0100 /* Display sizes as K, M, G, etc. */ + +#define VIEW_FLAGS (LS_LONG_VIEW|LS_SHORT_VIEW|LS_NUMERIC_VIEW|LS_SI_UNITS) #define SORT_FLAGS (LS_NAME_SORT|LS_TIME_SORT|LS_SIZE_SORT) /* Commands for interactive mode */ @@ -90,6 +128,7 @@ extern char *__progname; #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 @@ -113,46 +152,52 @@ extern char *__progname; struct CMD { const char *c; const int n; + const int t; }; +/* Type of completion */ +#define NOARGS 0 +#define REMOTE 1 +#define LOCAL 2 + static const struct CMD cmds[] = { - { "bye", I_QUIT }, - { "cd", I_CHDIR }, - { "chdir", I_CHDIR }, - { "chgrp", I_CHGRP }, - { "chmod", I_CHMOD }, - { "chown", I_CHOWN }, - { "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} + { "bye", I_QUIT, NOARGS }, + { "cd", I_CHDIR, REMOTE }, + { "chdir", I_CHDIR, REMOTE }, + { "chgrp", I_CHGRP, REMOTE }, + { "chmod", I_CHMOD, REMOTE }, + { "chown", I_CHOWN, REMOTE }, + { "df", I_DF, REMOTE }, + { "dir", I_LS, REMOTE }, + { "exit", I_QUIT, NOARGS }, + { "get", I_GET, REMOTE }, + { "help", I_HELP, NOARGS }, + { "lcd", I_LCHDIR, LOCAL }, + { "lchdir", I_LCHDIR, LOCAL }, + { "lls", I_LLS, LOCAL }, + { "lmkdir", I_LMKDIR, LOCAL }, + { "ln", I_SYMLINK, REMOTE }, + { "lpwd", I_LPWD, LOCAL }, + { "ls", I_LS, REMOTE }, + { "lumask", I_LUMASK, NOARGS }, + { "mkdir", I_MKDIR, REMOTE }, + { "progress", I_PROGRESS, NOARGS }, + { "put", I_PUT, LOCAL }, + { "pwd", I_PWD, REMOTE }, + { "quit", I_QUIT, NOARGS }, + { "rename", I_RENAME, REMOTE }, + { "rm", I_RM, REMOTE }, + { "rmdir", I_RMDIR, REMOTE }, + { "symlink", I_SYMLINK, REMOTE }, + { "version", I_VERSION, NOARGS }, + { "!", I_SHELL, NOARGS }, + { "?", I_HELP, NOARGS }, + { NULL, -1, -1 } }; -int interactive_loop(int fd_in, int fd_out, char *file1, char *file2); +int interactive_loop(struct sftp_conn *, char *file1, char *file2); +/* ARGSUSED */ static void killchild(int signo) { @@ -164,6 +209,7 @@ killchild(int signo) _exit(1); } +/* ARGSUSED */ static void cmd_interrupt(int signo) { @@ -178,34 +224,37 @@ cmd_interrupt(int signo) 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 [-Ppr] remote [local] 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 [-1afhlnrSt] [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 [-Ppr] local [remote] 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 @@ -241,7 +290,7 @@ local_do_shell(const char *args) 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)); } @@ -281,21 +330,6 @@ path_strip(char *path, char *strip) return (xstrdup(path)); } -static char * -path_append(char *p1, char *p2) -{ - char *ret; - int len = strlen(p1) + strlen(p2) + 2; - - ret = xmalloc(len); - strlcpy(ret, p1, len); - if (p1[strlen(p1) - 1] != '/') - strlcat(ret, "/", len); - strlcat(ret, p2, len); - - return(ret); -} - static char * make_absolute(char *p, char *pwd) { @@ -311,164 +345,113 @@ make_absolute(char *p, char *pwd) } static int -infer_path(const char *p, char **ifp) +parse_getput_flags(const char *cmd, char **argv, int argc, int *pflag, + int *rflag) { - char *cp; - - cp = strrchr(p, '/'); - if (cp == NULL) { - *ifp = xstrdup(p); - return(0); - } - - if (!cp[1]) { - error("Invalid path"); - return(-1); - } - - *ifp = xstrdup(cp + 1); - return(0); -} + extern int opterr, optind, optopt, optreset; + int ch; -static int -parse_getput_flags(const char **cpp, int *pflag) -{ - const char *cp = *cpp; + optind = optreset = 1; + opterr = 0; - /* Check for flags */ - if (cp[0] == '-' && cp[1] && strchr(WHITESPACE, cp[2])) { - switch (cp[1]) { + *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("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; + extern int opterr, optind, optopt, optreset; + int ch; - /* Defaults */ - *lflag = LS_NAME_SORT; + optind = optreset = 1; + opterr = 0; - /* Check for flags */ - if (cp++[0] == '-') { - for (; strchr(WHITESPACE, *cp) == NULL; cp++) { - switch (*cp) { - case 'l': - *lflag &= ~VIEW_FLAGS; - *lflag |= LS_LONG_VIEW; - break; - case '1': - *lflag &= ~VIEW_FLAGS; - *lflag |= LS_SHORT_VIEW; - break; - case 'n': - *lflag &= ~VIEW_FLAGS; - *lflag |= LS_NUMERIC_VIEW|LS_LONG_VIEW; - break; - case 'S': - *lflag &= ~SORT_FLAGS; - *lflag |= LS_SIZE_SORT; - break; - case 't': - *lflag &= ~SORT_FLAGS; - *lflag |= LS_TIME_SORT; - break; - case 'r': - *lflag |= LS_REVERSE_SORT; - break; - case 'f': - *lflag &= ~SORT_FLAGS; - break; - case 'a': - *lflag |= LS_SHOW_ALL; - break; - default: - error("Invalid flag -%c", *cp); - return(-1); - } + *lflag = LS_NAME_SORT; + while ((ch = getopt(argc, argv, "1Safhlnrt")) != -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 'h': + *lflag |= LS_SI_UNITS; + break; + case 'l': + *lflag &= ~LS_SHORT_VIEW; + *lflag |= LS_LONG_VIEW; + break; + case 'n': + *lflag &= ~LS_SHORT_VIEW; + *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; - u_int i, j; - - cp += strspn(cp, WHITESPACE); - if (!*cp) { - *cpp = cp; - *path = NULL; - return (0); - } - - *path = xmalloc(strlen(cp) + 1); + extern int opterr, optind, optopt, optreset; + int ch; - /* Check for quoted filenames */ - if (*cp == '\"' || *cp == '\'') { - quot = *cp++; + optind = optreset = 1; + opterr = 0; - /* 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 @@ -480,18 +463,7 @@ is_dir(char *path) 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 @@ -504,85 +476,103 @@ remote_is_dir(struct sftp_conn *conn, char *path) return(0); if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) return(0); - return(a->perm & S_IFDIR); + return(S_ISDIR(a->perm)); } +/* Check whether path returned from glob(..., GLOB_MARK, ...) is a directory */ static int -process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag) +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; - char *tmp; glob_t g; - int err = 0; - int i; + 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, 0, NULL, &g)) { + if (remote_glob(conn, abs_src, GLOB_MARK, NULL, &g)) { error("File \"%s\" not found.", abs_src); err = -1; goto out; } - /* If multiple matches, dst must be a directory or unspecified */ - if (g.gl_matchc > 1 && dst && !is_dir(dst)) { - error("Multiple files match, but \"%s\" is not a directory", - dst); + /* + * 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++) { - if (infer_path(g.gl_pathv[i], &tmp)) { + 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 directory specified, append filename */ if (is_dir(dst)) { - if (infer_path(g.gl_pathv[0], &tmp)) { - err = 1; - goto out; - } - abs_dst = path_append(dst, tmp); - xfree(tmp); - } else + abs_dst = path_append(dst, filename); + } else { abs_dst = xstrdup(dst); + } } else if (dst) { - abs_dst = path_append(dst, tmp); - xfree(tmp); - } else - abs_dst = tmp; + 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 (do_download(conn, g.gl_pathv[i], abs_dst, pflag) == -1) - err = -1; + 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); - if (abs_dst) - xfree(abs_dst); globfree(&g); return(err); } static int -process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag) +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; + char *tmp = NULL, *filename = NULL; glob_t g; int err = 0; - int i; + int i, dst_is_dir = 1; + struct stat sb; if (dst) { tmp_dst = xstrdup(dst); @@ -591,52 +581,62 @@ process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag) memset(&g, 0, sizeof(g)); debug3("Looking up %s", src); - if (glob(src, 0, NULL, &g)) { + 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 && !remote_is_dir(conn, tmp_dst)) { - error("Multiple files match, but \"%s\" is not a directory", - tmp_dst); + 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 (!is_reg(g.gl_pathv[i])) { - error("skipping non-regular file %s", - g.gl_pathv[i]); + if (stat(g.gl_pathv[i], &sb) == -1) { + err = -1; + error("stat %s: %s", g.gl_pathv[i], strerror(errno)); continue; } - if (infer_path(g.gl_pathv[i], &tmp)) { + + 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 (remote_is_dir(conn, tmp_dst)) { - if (infer_path(g.gl_pathv[0], &tmp)) { - err = 1; - goto out; - } - abs_dst = path_append(tmp_dst, tmp); - xfree(tmp); - } else + 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, tmp); - xfree(tmp); - } else - abs_dst = make_absolute(tmp, pwd); + 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 (do_upload(conn, g.gl_pathv[i], abs_dst, pflag) == -1) - err = -1; + 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: @@ -720,13 +720,14 @@ do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag) xfree(tmp); if (lflag & LS_LONG_VIEW) { - if (lflag & LS_NUMERIC_VIEW) { + if (lflag & (LS_NUMERIC_VIEW|LS_SI_UNITS)) { char *lname; struct stat sb; memset(&sb, 0, sizeof(sb)); attrib_to_stat(&d[n]->a, &sb); - lname = ls_file(fname, &sb, 1); + lname = ls_file(fname, &sb, 1, + (lflag & LS_SI_UNITS)); printf("%s\n", lname); xfree(lname); } else @@ -828,7 +829,7 @@ do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path, a = do_lstat(conn, g.gl_pathv[i], 1); if (a != NULL) attrib_to_stat(a, &sb); - lname = ls_file(fname, &sb, 1); + lname = ls_file(fname, &sb, 1, (lflag & LS_SI_UNITS)); printf("%s\n", lname); xfree(lname); } else { @@ -853,40 +854,288 @@ do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path, } static int -parse_args(const char **cpp, int *pflag, int *lflag, int *iflag, - unsigned long *n_arg, char **path1, char **path2) +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]; + unsigned long long ffree; + + if (do_statvfs(conn, path, &st, 1) == -1) + return -1; + if (iflag) { + ffree = st.f_files ? (100 * (st.f_files - st.f_ffree) / st.f_files) : 0; + 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, ffree); + } 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. + * The "sloppy" flag allows for recovery from missing terminating quote, for + * use in parsing incomplete commandlines during tab autocompletion. + * + * Returns NULL on error or a NULL-terminated array of arguments. + * + * If "lastquote" is not NULL, the quoting character used for the last + * argument is placed in *lastquote ("\0", "'" or "\""). + * + * If "terminated" is not NULL, *terminated will be set to 1 when the + * last argument's quote has been properly terminated or 0 otherwise. + * This parameter is only of use if "sloppy" is set. + */ +#define MAXARGS 128 +#define MAXARGLEN 8192 +static char ** +makeargv(const char *arg, int *argcp, int sloppy, char *lastquote, + u_int *terminated) +{ + 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; + } + if (terminated != NULL) + *terminated = 1; + if (lastquote != NULL) + *lastquote = '\0'; + 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; + if (lastquote != NULL) + *lastquote = arg[i]; + } 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 (lastquote != NULL) + *lastquote = '\0'; + } + 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) { + if (sloppy) { + state = MA_UNQUOTED; + if (terminated != NULL) + *terminated = 0; + goto string_done; + } + 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 (lastquote != NULL) + *lastquote = '\0'; + } + 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; + char *cp2, **argv; int base = 0; long l; - int i, cmdnum; + 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++; + cp = cp + strspn(cp, WHITESPACE); } - /* Figure out which command we have */ - for (i = 0; cmds[i].c; i++) { - int cmdlen = strlen(cmds[i].c); + /* Ignore blank lines and lines which begin with comment '#' char */ + if (*cp == '\0' || *cp == '#') + return (0); + + if ((argv = makeargv(cp, &argc, 0, NULL, NULL)) == NULL) + return -1; - /* Check for command followed by whitespace */ - if (!strncasecmp(cp, cmds[i].c, cmdlen) && - strchr(WHITESPACE, cp[cmdlen])) { - cp += cmdlen; - cp = cp + strspn(cp, WHITESPACE); + /* 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; @@ -897,40 +1146,44 @@ parse_args(const char **cpp, int *pflag, int *lflag, int *iflag, 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 = *rflag = *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, rflag)) == -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: @@ -939,58 +1192,69 @@ parse_args(const char **cpp, int *pflag, int *lflag, int *iflag, 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: @@ -1012,15 +1276,15 @@ parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd, int err_abort) { char *path1, *path2, *tmp; - int pflag, lflag, iflag, cmdnum, i; - unsigned long n_arg; + 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, &lflag, &iflag, &n_arg, + cmdnum = parse_args(&cmd, &pflag, &rflag, &lflag, &iflag, &hflag, &n_arg, &path1, &path2); if (iflag != 0) @@ -1038,10 +1302,10 @@ parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd, err = -1; break; case I_GET: - err = process_get(conn, path1, path2, *pwd, pflag); + err = process_get(conn, path1, path2, *pwd, pflag, rflag); break; case I_PUT: - err = process_put(conn, path1, path2, *pwd, pflag); + err = process_put(conn, path1, path2, *pwd, pflag, rflag); break; case I_RENAME: path1 = make_absolute(path1, *pwd); @@ -1067,7 +1331,7 @@ parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd, attrib_clear(&a); a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS; a.perm = 0777; - err = do_mkdir(conn, path1, &a); + err = do_mkdir(conn, path1, &a, 1); break; case I_RMDIR: path1 = make_absolute(path1, *pwd); @@ -1114,6 +1378,13 @@ parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **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 " @@ -1157,17 +1428,19 @@ parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **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 != 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; @@ -1236,21 +1509,352 @@ prompt(EditLine *el) { return ("sftp> "); } -#endif + +/* Display entries in 'list' after skipping the first 'len' chars */ +static void +complete_display(char **list, u_int len) +{ + u_int y, m = 0, width = 80, columns = 1, colspace = 0, llen; + struct winsize ws; + char *tmp; + + /* Count entries for sort and find longest */ + for (y = 0; list[y]; y++) + m = MAX(m, strlen(list[y])); + + if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1) + width = ws.ws_col; + + m = m > len ? m - len : 0; + columns = width / (m + 2); + columns = MAX(columns, 1); + colspace = width / columns; + colspace = MIN(colspace, width); + + printf("\n"); + m = 1; + for (y = 0; list[y]; y++) { + llen = strlen(list[y]); + tmp = llen > len ? list[y] + len : ""; + printf("%-*s", colspace, tmp); + if (m >= columns) { + printf("\n"); + m = 1; + } else + m++; + } + printf("\n"); +} + +/* + * Given a "list" of words that begin with a common prefix of "word", + * attempt to find an autocompletion to extends "word" by the next + * characters common to all entries in "list". + */ +static char * +complete_ambiguous(const char *word, char **list, size_t count) +{ + if (word == NULL) + return NULL; + + if (count > 0) { + u_int y, matchlen = strlen(list[0]); + + /* Find length of common stem */ + for (y = 1; list[y]; y++) { + u_int x; + + for (x = 0; x < matchlen; x++) + if (list[0][x] != list[y][x]) + break; + + matchlen = x; + } + + if (matchlen > strlen(word)) { + char *tmp = xstrdup(list[0]); + + tmp[matchlen] = '\0'; + return tmp; + } + } + + return xstrdup(word); +} + +/* Autocomplete a sftp command */ +static int +complete_cmd_parse(EditLine *el, char *cmd, int lastarg, char quote, + int terminated) +{ + u_int y, count = 0, cmdlen, tmplen; + char *tmp, **list, argterm[3]; + const LineInfo *lf; + + list = xcalloc((sizeof(cmds) / sizeof(*cmds)) + 1, sizeof(char *)); + + /* No command specified: display all available commands */ + if (cmd == NULL) { + for (y = 0; cmds[y].c; y++) + list[count++] = xstrdup(cmds[y].c); + + list[count] = NULL; + complete_display(list, 0); + + for (y = 0; list[y] != NULL; y++) + xfree(list[y]); + xfree(list); + return count; + } + + /* Prepare subset of commands that start with "cmd" */ + cmdlen = strlen(cmd); + for (y = 0; cmds[y].c; y++) { + if (!strncasecmp(cmd, cmds[y].c, cmdlen)) + list[count++] = xstrdup(cmds[y].c); + } + list[count] = NULL; + + if (count == 0) + return 0; + + /* Complete ambigious command */ + tmp = complete_ambiguous(cmd, list, count); + if (count > 1) + complete_display(list, 0); + + for (y = 0; list[y]; y++) + xfree(list[y]); + xfree(list); + + if (tmp != NULL) { + tmplen = strlen(tmp); + cmdlen = strlen(cmd); + /* If cmd may be extended then do so */ + if (tmplen > cmdlen) + if (el_insertstr(el, tmp + cmdlen) == -1) + fatal("el_insertstr failed."); + lf = el_line(el); + /* Terminate argument cleanly */ + if (count == 1) { + y = 0; + if (!terminated) + argterm[y++] = quote; + if (lastarg || *(lf->cursor) != ' ') + argterm[y++] = ' '; + argterm[y] = '\0'; + if (y > 0 && el_insertstr(el, argterm) == -1) + fatal("el_insertstr failed."); + } + xfree(tmp); + } + + return count; +} + +/* + * Determine whether a particular sftp command's arguments (if any) + * represent local or remote files. + */ +static int +complete_is_remote(char *cmd) { + int i; + + if (cmd == NULL) + return -1; + + for (i = 0; cmds[i].c; i++) { + if (!strncasecmp(cmd, cmds[i].c, strlen(cmds[i].c))) + return cmds[i].t; + } + + return -1; +} + +/* Autocomplete a filename "file" */ +static int +complete_match(EditLine *el, struct sftp_conn *conn, char *remote_path, + char *file, int remote, int lastarg, char quote, int terminated) +{ + glob_t g; + char *tmp, *tmp2, ins[3]; + u_int i, hadglob, pwdlen, len, tmplen, filelen; + const LineInfo *lf; + + /* Glob from "file" location */ + if (file == NULL) + tmp = xstrdup("*"); + else + xasprintf(&tmp, "%s*", file); + + memset(&g, 0, sizeof(g)); + if (remote != LOCAL) { + tmp = make_absolute(tmp, remote_path); + remote_glob(conn, tmp, GLOB_DOOFFS|GLOB_MARK, NULL, &g); + } else + glob(tmp, GLOB_DOOFFS|GLOB_MARK, NULL, &g); + + /* Determine length of pwd so we can trim completion display */ + for (hadglob = tmplen = pwdlen = 0; tmp[tmplen] != 0; tmplen++) { + /* Terminate counting on first unescaped glob metacharacter */ + if (tmp[tmplen] == '*' || tmp[tmplen] == '?') { + if (tmp[tmplen] != '*' || tmp[tmplen + 1] != '\0') + hadglob = 1; + break; + } + if (tmp[tmplen] == '\\' && tmp[tmplen + 1] != '\0') + tmplen++; + if (tmp[tmplen] == '/') + pwdlen = tmplen + 1; /* track last seen '/' */ + } + xfree(tmp); + + if (g.gl_matchc == 0) + goto out; + + if (g.gl_matchc > 1) + complete_display(g.gl_pathv, pwdlen); + + tmp = NULL; + /* Don't try to extend globs */ + if (file == NULL || hadglob) + goto out; + + tmp2 = complete_ambiguous(file, g.gl_pathv, g.gl_matchc); + tmp = path_strip(tmp2, remote_path); + xfree(tmp2); + + if (tmp == NULL) + goto out; + + tmplen = strlen(tmp); + filelen = strlen(file); + + if (tmplen > filelen) { + tmp2 = tmp + filelen; + len = strlen(tmp2); + /* quote argument on way out */ + for (i = 0; i < len; i++) { + ins[0] = '\\'; + ins[1] = tmp2[i]; + ins[2] = '\0'; + switch (tmp2[i]) { + case '\'': + case '"': + case '\\': + case '\t': + case ' ': + if (quote == '\0' || tmp2[i] == quote) { + if (el_insertstr(el, ins) == -1) + fatal("el_insertstr " + "failed."); + break; + } + /* FALLTHROUGH */ + default: + if (el_insertstr(el, ins + 1) == -1) + fatal("el_insertstr failed."); + break; + } + } + } + + lf = el_line(el); + if (g.gl_matchc == 1) { + i = 0; + if (!terminated) + ins[i++] = quote; + if (*(lf->cursor - 1) != '/' && + (lastarg || *(lf->cursor) != ' ')) + ins[i++] = ' '; + ins[i] = '\0'; + if (i > 0 && el_insertstr(el, ins) == -1) + fatal("el_insertstr failed."); + } + xfree(tmp); + + out: + globfree(&g); + return g.gl_matchc; +} + +/* tab-completion hook function, called via libedit */ +static unsigned char +complete(EditLine *el, int ch) +{ + char **argv, *line, quote; + u_int argc, carg, cursor, len, terminated, ret = CC_ERROR; + const LineInfo *lf; + struct complete_ctx *complete_ctx; + + lf = el_line(el); + if (el_get(el, EL_CLIENTDATA, (void**)&complete_ctx) != 0) + fatal("%s: el_get failed", __func__); + + /* Figure out which argument the cursor points to */ + cursor = lf->cursor - lf->buffer; + line = (char *)xmalloc(cursor + 1); + memcpy(line, lf->buffer, cursor); + line[cursor] = '\0'; + argv = makeargv(line, &carg, 1, "e, &terminated); + xfree(line); + + /* Get all the arguments on the line */ + len = lf->lastchar - lf->buffer; + line = (char *)xmalloc(len + 1); + memcpy(line, lf->buffer, len); + line[len] = '\0'; + argv = makeargv(line, &argc, 1, NULL, NULL); + + /* Ensure cursor is at EOL or a argument boundary */ + if (line[cursor] != ' ' && line[cursor] != '\0' && + line[cursor] != '\n') { + xfree(line); + return ret; + } + + if (carg == 0) { + /* Show all available commands */ + complete_cmd_parse(el, NULL, argc == carg, '\0', 1); + ret = CC_REDISPLAY; + } else if (carg == 1 && cursor > 0 && line[cursor - 1] != ' ') { + /* Handle the command parsing */ + if (complete_cmd_parse(el, argv[0], argc == carg, + quote, terminated) != 0) + ret = CC_REDISPLAY; + } else if (carg >= 1) { + /* Handle file parsing */ + int remote = complete_is_remote(argv[0]); + char *filematch = NULL; + + if (carg > 1 && line[cursor-1] != ' ') + filematch = argv[carg - 1]; + + if (remote != 0 && + complete_match(el, complete_ctx->conn, + *complete_ctx->remote_pathp, filematch, + remote, carg == argc, quote, terminated) != 0) + ret = CC_REDISPLAY; + } + + xfree(line); + return ret; +} +#endif /* USE_LIBEDIT */ int -interactive_loop(int fd_in, int fd_out, char *file1, char *file2) +interactive_loop(struct sftp_conn *conn, char *file1, char *file2) { - char *pwd; + char *remote_path; char *dir = NULL; char cmd[2048]; - struct sftp_conn *conn; int err, interactive; EditLine *el = NULL; #ifdef USE_LIBEDIT History *hl = NULL; HistEvent hev; extern char *__progname; + struct complete_ctx complete_ctx; if (!batchmode && isatty(STDIN_FILENO)) { if ((el = el_init(__progname, stdin, stdout, stderr)) == NULL) @@ -1265,27 +1869,33 @@ interactive_loop(int fd_in, int fd_out, char *file1, char *file2) el_set(el, EL_TERMINAL, NULL); el_set(el, EL_SIGNAL, 1); el_source(el, NULL); + + /* Tab Completion */ + el_set(el, EL_ADDFN, "ftp-complete", + "Context senstive argument completion", complete); + complete_ctx.conn = conn; + complete_ctx.remote_pathp = &remote_path; + el_set(el, EL_CLIENTDATA, (void*)&complete_ctx); + el_set(el, EL_BIND, "^I", "ftp-complete", NULL); } #endif /* USE_LIBEDIT */ - conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests); - if (conn == NULL) - fatal("Couldn't initialise connection to server"); - - pwd = do_realpath(conn, "."); - if (pwd == NULL) + remote_path = do_realpath(conn, "."); + if (remote_path == NULL) fatal("Need cwd"); if (file1 != NULL) { dir = xstrdup(file1); - dir = make_absolute(dir, pwd); + dir = make_absolute(dir, remote_path); 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, + &remote_path, 1) != 0) { xfree(dir); - xfree(pwd); + xfree(remote_path); + xfree(conn); return (-1); } } else { @@ -1295,9 +1905,11 @@ interactive_loop(int fd_in, int fd_out, char *file1, char *file2) snprintf(cmd, sizeof cmd, "get %s %s", dir, file2); - err = parse_dispatch_command(conn, cmd, &pwd, 1); + err = parse_dispatch_command(conn, cmd, + &remote_path, 1); xfree(dir); - xfree(pwd); + xfree(remote_path); + xfree(conn); return (err); } xfree(dir); @@ -1337,7 +1949,8 @@ interactive_loop(int fd_in, int fd_out, char *file1, char *file2) const char *line; int count = 0; - if ((line = el_gets(el, &count)) == NULL || count <= 0) { + if ((line = el_gets(el, &count)) == NULL || + count <= 0) { printf("\n"); break; } @@ -1357,11 +1970,13 @@ interactive_loop(int fd_in, int fd_out, char *file1, char *file2) interrupted = 0; signal(SIGINT, cmd_interrupt); - err = parse_dispatch_command(conn, cmd, &pwd, batchmode); + err = parse_dispatch_command(conn, cmd, &remote_path, + batchmode); if (err != 0) break; } - xfree(pwd); + xfree(remote_path); + xfree(conn); #ifdef USE_LIBEDIT if (el != NULL) @@ -1412,9 +2027,11 @@ connect_to_server(char *path, char **args, int *in, int *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 + * kill it too. Contrawise, since sftp sends SIGTERMs to the + * underlying ssh, it must *not* ignore that signal. */ signal(SIGINT, SIG_IGN); + signal(SIGTERM, SIG_DFL); execvp(path, args); fprintf(stderr, "exec: %s: %s\n", path, strerror(errno)); _exit(1); @@ -1433,12 +2050,16 @@ usage(void) extern char *__progname; fprintf(stderr, - "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 -b batchfile [user@]host\n", __progname, __progname, __progname, __progname); + "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); } @@ -1446,7 +2067,7 @@ int main(int argc, char **argv) { int in, out, ch, err; - char *host, *userhost, *cp, *file2 = NULL; + char *host = NULL, *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; @@ -1454,6 +2075,9 @@ main(int argc, char **argv) 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(); @@ -1461,7 +2085,7 @@ main(int argc, char **argv) __progname = ssh_get_progname(argv[0]); memset(&args, '\0', sizeof(args)); args.list = NULL; - addargs(&args, ssh_program); + addargs(&args, "%s", ssh_program); addargs(&args, "-oForwardX11 no"); addargs(&args, "-oForwardAgent no"); addargs(&args, "-oPermitLocalCommand no"); @@ -1470,10 +2094,29 @@ main(int argc, char **argv) ll = SYSLOG_LEVEL_INFO; infile = stdin; - while ((ch = getopt(argc, argv, "1hvCo:s:S:b:B:F:P:R:")) != -1) { + while ((ch = getopt(argc, argv, + "1246hpqrvCc: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"); + addargs(&args, "-%c", ch); + break; + /* Passed through to ssh(1) with argument */ + case 'F': + case 'c': + case 'i': + case 'o': + addargs(&args, "-%c", ch); + addargs(&args, "%s", 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) { @@ -1482,21 +2125,18 @@ main(int argc, char **argv) } debug_level++; break; - case 'F': - case 'o': - addargs(&args, "-%c%s", ch, optarg); - break; case '1': sshver = 1; if (sftp_server == NULL) sftp_server = _PATH_SFTP_SERVER; break; - case 's': - sftp_server = optarg; + case '2': + sshver = 2; break; - case 'S': - ssh_program = optarg; - replacearg(&args, 0, "%s", ssh_program); + 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) @@ -1510,13 +2150,14 @@ main(int argc, char **argv) batchmode = 1; addargs(&args, "-obatchmode yes"); break; - case 'P': + case 'p': + global_pflag = 1; + break; + case 'D': sftp_direct = optarg; break; - case 'B': - copy_buffer_len = strtol(optarg, &cp, 10); - if (copy_buffer_len == 0 || *cp != '\0') - fatal("Invalid buffer size \"%s\"", optarg); + case 'r': + global_rflag = 1; break; case 'R': num_requests = strtol(optarg, &cp, 10); @@ -1524,6 +2165,13 @@ main(int argc, char **argv) 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(); @@ -1550,7 +2198,8 @@ main(int argc, char **argv) fprintf(stderr, "Missing username\n"); usage(); } - addargs(&args, "-l%s",userhost); + addargs(&args, "-l"); + addargs(&args, "%s", userhost); } if ((cp = colon(host)) != NULL) { @@ -1570,24 +2219,32 @@ main(int argc, char **argv) if (sftp_server == NULL || strchr(sftp_server, '/') == NULL) addargs(&args, "-s"); + addargs(&args, "--"); addargs(&args, "%s", host); addargs(&args, "%s", (sftp_server != NULL ? sftp_server : "sftp")); - if (!batchmode) - fprintf(stderr, "Connecting to %s...\n", host); connect_to_server(ssh_program, args.list, &in, &out); } else { args.list = NULL; addargs(&args, "sftp-server"); - if (!batchmode) - 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); + 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);