1 /* $NetBSD: sftp-client.h,v 1.17 2022/10/05 22:39:36 christos Exp $ */ 2 /* $OpenBSD: sftp-client.h,v 1.38 2022/09/19 10:43:12 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 25 typedef struct SFTP_DIRENT SFTP_DIRENT; 26 27 struct 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 */ 37 struct 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 */ 52 struct 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 */ 68 struct sftp_conn *do_init(int, int, u_int, u_int, u_int64_t); 69 70 u_int sftp_proto_version(struct sftp_conn *); 71 72 /* Query server limits */ 73 int do_limits(struct sftp_conn *, struct sftp_limits *); 74 75 /* Close file referred to by 'handle' */ 76 int do_close(struct sftp_conn *, const u_char *, u_int); 77 78 /* Read contents of 'path' to NULL-terminated array 'dir' */ 79 int do_readdir(struct sftp_conn *, const char *, SFTP_DIRENT ***); 80 81 /* Frees a NULL-terminated array of SFTP_DIRENTs (eg. from do_readdir) */ 82 void free_sftp_dirents(SFTP_DIRENT **); 83 84 /* Delete file 'path' */ 85 int do_rm(struct sftp_conn *, const char *); 86 87 /* Create directory 'path' */ 88 int do_mkdir(struct sftp_conn *, const char *, Attrib *, int); 89 90 /* Remove directory 'path' */ 91 int do_rmdir(struct sftp_conn *, const char *); 92 93 /* Get file attributes of 'path' (follows symlinks) */ 94 Attrib *do_stat(struct sftp_conn *, const char *, int); 95 96 /* Get file attributes of 'path' (does not follow symlinks) */ 97 Attrib *do_lstat(struct sftp_conn *, const char *, int); 98 99 /* Set file attributes of 'path' */ 100 int do_setstat(struct sftp_conn *, const char *, Attrib *); 101 102 /* Set file attributes of open file 'handle' */ 103 int do_fsetstat(struct sftp_conn *, const u_char *, u_int, Attrib *); 104 105 /* Set file attributes of 'path', not following symlinks */ 106 int do_lsetstat(struct sftp_conn *conn, const char *path, Attrib *a); 107 108 /* Canonicalise 'path' - caller must free result */ 109 char *do_realpath(struct sftp_conn *, const char *); 110 111 /* Canonicalisation with tilde expansion (requires server extension) */ 112 char *do_expand_path(struct sftp_conn *, const char *); 113 114 /* Returns non-zero if server can tilde-expand paths */ 115 int can_expand_path(struct sftp_conn *); 116 117 /* Get statistics for filesystem hosting file at "path" */ 118 int do_statvfs(struct sftp_conn *, const char *, struct sftp_statvfs *, int); 119 120 /* Rename 'oldpath' to 'newpath' */ 121 int do_rename(struct sftp_conn *, const char *, const char *, int); 122 123 /* Copy 'oldpath' to 'newpath' */ 124 int do_copy(struct sftp_conn *, const char *, const char *); 125 126 /* Link 'oldpath' to 'newpath' */ 127 int do_hardlink(struct sftp_conn *, const char *, const char *); 128 129 /* Rename 'oldpath' to 'newpath' */ 130 int do_symlink(struct sftp_conn *, const char *, const char *); 131 132 /* Call fsync() on open file 'handle' */ 133 int do_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 */ 139 int do_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 */ 146 int 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 */ 153 int do_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 */ 160 int 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 */ 167 int 168 do_crossload(struct sftp_conn *from, struct sftp_conn *to, 169 const char *from_path, const char *to_path, 170 Attrib *a, int preserve_flag); 171 172 /* 173 * Recursively download a directory from 'from_path' from the 'from' 174 * connection and upload it to 'to' connection at 'to_path'. 175 */ 176 int crossload_dir(struct sftp_conn *from, struct sftp_conn *to, 177 const char *from_path, const char *to_path, 178 Attrib *dirattrib, int preserve_flag, int print_flag, 179 int follow_link_flag); 180 181 /* 182 * User/group ID to name translation. 183 */ 184 int can_get_users_groups_by_id(struct sftp_conn *conn); 185 int do_get_users_groups_by_id(struct sftp_conn *conn, 186 const u_int *uids, u_int nuids, 187 const u_int *gids, u_int ngids, 188 char ***usernamesp, char ***groupnamesp); 189 190 /* Concatenate paths, taking care of slashes. Caller must free result. */ 191 char *path_append(const char *, const char *); 192 193 /* Make absolute path if relative path and CWD is given. Does not modify 194 * original if the path is already absolute. */ 195 char *make_absolute(char *, const char *); 196 197 /* Check if remote path is directory */ 198 int remote_is_dir(struct sftp_conn *conn, const char *path); 199 200 /* Check if local path is directory */ 201 int local_is_dir(const char *path); 202 203 /* Check whether path returned from glob(..., GLOB_MARK, ...) is a directory */ 204 int globpath_is_dir(const char *pathname); 205 206 #endif 207