1/* $NetBSD: sftp-client.h,v 1.18 2023/10/25 20:19:57 christos Exp $ */ 2/* $OpenBSD: sftp-client.h,v 1.39 2023/09/08 05:56:13 djm Exp $ */ 3 4/* 5 * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org> 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20/* Client side of SSH2 filexfer protocol */ 21 22#ifndef _SFTP_CLIENT_H 23#define _SFTP_CLIENT_H 24 25typedef struct SFTP_DIRENT SFTP_DIRENT; 26 27struct SFTP_DIRENT { 28 char *filename; 29 char *longname; 30 Attrib a; 31}; 32 33/* 34 * Used for statvfs responses on the wire from the server, because the 35 * server's native format may be larger than the client's. 36 */ 37struct sftp_statvfs { 38 u_int64_t f_bsize; 39 u_int64_t f_frsize; 40 u_int64_t f_blocks; 41 u_int64_t f_bfree; 42 u_int64_t f_bavail; 43 u_int64_t f_files; 44 u_int64_t f_ffree; 45 u_int64_t f_favail; 46 u_int64_t f_fsid; 47 u_int64_t f_flag; 48 u_int64_t f_namemax; 49}; 50 51/* Used for limits response on the wire from the server */ 52struct sftp_limits { 53 u_int64_t packet_length; 54 u_int64_t read_length; 55 u_int64_t write_length; 56 u_int64_t open_handles; 57}; 58 59/* print flag values */ 60#define SFTP_QUIET 0 /* be quiet during transfers */ 61#define SFTP_PRINT 1 /* list files and show progress bar */ 62#define SFTP_PROGRESS_ONLY 2 /* progress bar only */ 63 64/* 65 * Initialise a SSH filexfer connection. Returns NULL on error or 66 * a pointer to a initialized sftp_conn struct on success. 67 */ 68struct sftp_conn *sftp_init(int, int, u_int, u_int, u_int64_t); 69 70u_int sftp_proto_version(struct sftp_conn *); 71 72/* Query server limits */ 73int sftp_get_limits(struct sftp_conn *, struct sftp_limits *); 74 75/* Close file referred to by 'handle' */ 76int sftp_close(struct sftp_conn *, const u_char *, u_int); 77 78/* Read contents of 'path' to NULL-terminated array 'dir' */ 79int sftp_readdir(struct sftp_conn *, const char *, SFTP_DIRENT ***); 80 81/* Frees a NULL-terminated array of SFTP_DIRENTs (eg. from sftp_readdir) */ 82void sftp_free_dirents(SFTP_DIRENT **); 83 84/* Delete file 'path' */ 85int sftp_rm(struct sftp_conn *, const char *); 86 87/* Create directory 'path' */ 88int sftp_mkdir(struct sftp_conn *, const char *, Attrib *, int); 89 90/* Remove directory 'path' */ 91int sftp_rmdir(struct sftp_conn *, const char *); 92 93/* Get file attributes of 'path' (follows symlinks) */ 94int sftp_stat(struct sftp_conn *, const char *, int, Attrib *); 95 96/* Get file attributes of 'path' (does not follow symlinks) */ 97int sftp_lstat(struct sftp_conn *, const char *, int, Attrib *); 98 99/* Set file attributes of 'path' */ 100int sftp_setstat(struct sftp_conn *, const char *, Attrib *); 101 102/* Set file attributes of open file 'handle' */ 103int sftp_fsetstat(struct sftp_conn *, const u_char *, u_int, Attrib *); 104 105/* Set file attributes of 'path', not following symlinks */ 106int sftp_lsetstat(struct sftp_conn *conn, const char *path, Attrib *a); 107 108/* Canonicalise 'path' - caller must free result */ 109char *sftp_realpath(struct sftp_conn *, const char *); 110 111/* Canonicalisation with tilde expansion (requires server extension) */ 112char *sftp_expand_path(struct sftp_conn *, const char *); 113 114/* Returns non-zero if server can tilde-expand paths */ 115int sftp_can_expand_path(struct sftp_conn *); 116 117/* Get statistics for filesystem hosting file at "path" */ 118int sftp_statvfs(struct sftp_conn *, const char *, struct sftp_statvfs *, int); 119 120/* Rename 'oldpath' to 'newpath' */ 121int sftp_rename(struct sftp_conn *, const char *, const char *, int); 122 123/* Copy 'oldpath' to 'newpath' */ 124int sftp_copy(struct sftp_conn *, const char *, const char *); 125 126/* Link 'oldpath' to 'newpath' */ 127int sftp_hardlink(struct sftp_conn *, const char *, const char *); 128 129/* Rename 'oldpath' to 'newpath' */ 130int sftp_symlink(struct sftp_conn *, const char *, const char *); 131 132/* Call fsync() on open file 'handle' */ 133int sftp_fsync(struct sftp_conn *conn, u_char *, u_int); 134 135/* 136 * Download 'remote_path' to 'local_path'. Preserve permissions and times 137 * if 'pflag' is set 138 */ 139int sftp_download(struct sftp_conn *, const char *, const char *, Attrib *, 140 int, int, int, int); 141 142/* 143 * Recursively download 'remote_directory' to 'local_directory'. Preserve 144 * times if 'pflag' is set 145 */ 146int sftp_download_dir(struct sftp_conn *, const char *, const char *, Attrib *, 147 int, int, int, int, int, int); 148 149/* 150 * Upload 'local_path' to 'remote_path'. Preserve permissions and times 151 * if 'pflag' is set 152 */ 153int sftp_upload(struct sftp_conn *, const char *, const char *, 154 int, int, int, int); 155 156/* 157 * Recursively upload 'local_directory' to 'remote_directory'. Preserve 158 * times if 'pflag' is set 159 */ 160int sftp_upload_dir(struct sftp_conn *, const char *, const char *, 161 int, int, int, int, int, int); 162 163/* 164 * Download a 'from_path' from the 'from' connection and upload it to 165 * to 'to' connection at 'to_path'. 166 */ 167int sftp_crossload(struct sftp_conn *from, struct sftp_conn *to, 168 const char *from_path, const char *to_path, 169 Attrib *a, int preserve_flag); 170 171/* 172 * Recursively download a directory from 'from_path' from the 'from' 173 * connection and upload it to 'to' connection at 'to_path'. 174 */ 175int sftp_crossload_dir(struct sftp_conn *from, struct sftp_conn *to, 176 const char *from_path, const char *to_path, 177 Attrib *dirattrib, int preserve_flag, int print_flag, 178 int follow_link_flag); 179 180/* 181 * User/group ID to name translation. 182 */ 183int sftp_can_get_users_groups_by_id(struct sftp_conn *conn); 184int sftp_get_users_groups_by_id(struct sftp_conn *conn, 185 const u_int *uids, u_int nuids, 186 const u_int *gids, u_int ngids, 187 char ***usernamesp, char ***groupnamesp); 188 189/* Concatenate paths, taking care of slashes. Caller must free result. */ 190char *sftp_path_append(const char *, const char *); 191 192/* Make absolute path if relative path and CWD is given. Does not modify 193 * original if the path is already absolute. */ 194char *sftp_make_absolute(char *, const char *); 195 196/* Check if remote path is directory */ 197int sftp_remote_is_dir(struct sftp_conn *conn, const char *path); 198 199/* Check whether path returned from glob(..., GLOB_MARK, ...) is a directory */ 200int sftp_globpath_is_dir(const char *pathname); 201 202#endif 203