Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1 | /* |
Ben Lindstrom | 4469723 | 2001-07-04 03:32:30 +0000 | [diff] [blame] | 2 | * Copyright (c) 2000, 2001 Markus Friedl. All rights reserved. |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions |
| 6 | * are met: |
| 7 | * 1. Redistributions of source code must retain the above copyright |
| 8 | * notice, this list of conditions and the following disclaimer. |
| 9 | * 2. Redistributions in binary form must reproduce the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer in the |
| 11 | * documentation and/or other materials provided with the distribution. |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 12 | * |
| 13 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 14 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 15 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 16 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 17 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 18 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 19 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 20 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 21 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 22 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 23 | */ |
| 24 | #include "includes.h" |
Damien Miller | 708d21c | 2002-01-22 23:18:15 +1100 | [diff] [blame^] | 25 | RCSID("$OpenBSD: sftp-server.c,v 1.32 2001/12/29 21:56:01 stevesk Exp $"); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 26 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 27 | #include "buffer.h" |
| 28 | #include "bufaux.h" |
| 29 | #include "getput.h" |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 30 | #include "log.h" |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 31 | #include "xmalloc.h" |
| 32 | |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 33 | #include "sftp.h" |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 34 | #include "sftp-common.h" |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 35 | |
| 36 | /* helper */ |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 37 | #define get_int64() buffer_get_int64(&iqueue); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 38 | #define get_int() buffer_get_int(&iqueue); |
| 39 | #define get_string(lenp) buffer_get_string(&iqueue, lenp); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 40 | #define TRACE debug |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 41 | |
Ben Lindstrom | 49a79c0 | 2000-11-17 03:47:20 +0000 | [diff] [blame] | 42 | #ifdef HAVE___PROGNAME |
| 43 | extern char *__progname; |
| 44 | #else |
| 45 | char *__progname; |
| 46 | #endif |
| 47 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 48 | /* input and output queue */ |
| 49 | Buffer iqueue; |
| 50 | Buffer oqueue; |
| 51 | |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 52 | /* Version of client */ |
| 53 | int version; |
| 54 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 55 | /* portable attibutes, etc. */ |
| 56 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 57 | typedef struct Stat Stat; |
| 58 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 59 | struct Stat { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 60 | char *name; |
| 61 | char *long_name; |
| 62 | Attrib attrib; |
| 63 | }; |
| 64 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 65 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 66 | errno_to_portable(int unixerrno) |
| 67 | { |
| 68 | int ret = 0; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 69 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 70 | switch (unixerrno) { |
| 71 | case 0: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 72 | ret = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 73 | break; |
| 74 | case ENOENT: |
| 75 | case ENOTDIR: |
| 76 | case EBADF: |
| 77 | case ELOOP: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 78 | ret = SSH2_FX_NO_SUCH_FILE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 79 | break; |
| 80 | case EPERM: |
| 81 | case EACCES: |
| 82 | case EFAULT: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 83 | ret = SSH2_FX_PERMISSION_DENIED; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 84 | break; |
| 85 | case ENAMETOOLONG: |
| 86 | case EINVAL: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 87 | ret = SSH2_FX_BAD_MESSAGE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 88 | break; |
| 89 | default: |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 90 | ret = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 91 | break; |
| 92 | } |
| 93 | return ret; |
| 94 | } |
| 95 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 96 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 97 | flags_from_portable(int pflags) |
| 98 | { |
| 99 | int flags = 0; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 100 | |
Ben Lindstrom | 3659251 | 2001-03-05 05:02:08 +0000 | [diff] [blame] | 101 | if ((pflags & SSH2_FXF_READ) && |
| 102 | (pflags & SSH2_FXF_WRITE)) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 103 | flags = O_RDWR; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 104 | } else if (pflags & SSH2_FXF_READ) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 105 | flags = O_RDONLY; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 106 | } else if (pflags & SSH2_FXF_WRITE) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 107 | flags = O_WRONLY; |
| 108 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 109 | if (pflags & SSH2_FXF_CREAT) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 110 | flags |= O_CREAT; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 111 | if (pflags & SSH2_FXF_TRUNC) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 112 | flags |= O_TRUNC; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 113 | if (pflags & SSH2_FXF_EXCL) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 114 | flags |= O_EXCL; |
| 115 | return flags; |
| 116 | } |
| 117 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 118 | static Attrib * |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 119 | get_attrib(void) |
| 120 | { |
| 121 | return decode_attrib(&iqueue); |
| 122 | } |
| 123 | |
| 124 | /* handle handles */ |
| 125 | |
| 126 | typedef struct Handle Handle; |
| 127 | struct Handle { |
| 128 | int use; |
| 129 | DIR *dirp; |
| 130 | int fd; |
| 131 | char *name; |
| 132 | }; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 133 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 134 | enum { |
| 135 | HANDLE_UNUSED, |
| 136 | HANDLE_DIR, |
| 137 | HANDLE_FILE |
| 138 | }; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 139 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 140 | Handle handles[100]; |
| 141 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 142 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 143 | handle_init(void) |
| 144 | { |
| 145 | int i; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 146 | |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 147 | for (i = 0; i < sizeof(handles)/sizeof(Handle); i++) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 148 | handles[i].use = HANDLE_UNUSED; |
| 149 | } |
| 150 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 151 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 152 | handle_new(int use, char *name, int fd, DIR *dirp) |
| 153 | { |
| 154 | int i; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 155 | |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 156 | for (i = 0; i < sizeof(handles)/sizeof(Handle); i++) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 157 | if (handles[i].use == HANDLE_UNUSED) { |
| 158 | handles[i].use = use; |
| 159 | handles[i].dirp = dirp; |
| 160 | handles[i].fd = fd; |
| 161 | handles[i].name = name; |
| 162 | return i; |
| 163 | } |
| 164 | } |
| 165 | return -1; |
| 166 | } |
| 167 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 168 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 169 | handle_is_ok(int i, int type) |
| 170 | { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 171 | return i >= 0 && i < sizeof(handles)/sizeof(Handle) && |
| 172 | handles[i].use == type; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 173 | } |
| 174 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 175 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 176 | handle_to_string(int handle, char **stringp, int *hlenp) |
| 177 | { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 178 | if (stringp == NULL || hlenp == NULL) |
| 179 | return -1; |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 180 | *stringp = xmalloc(sizeof(int32_t)); |
| 181 | PUT_32BIT(*stringp, handle); |
| 182 | *hlenp = sizeof(int32_t); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 183 | return 0; |
| 184 | } |
| 185 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 186 | static int |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 187 | handle_from_string(char *handle, u_int hlen) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 188 | { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 189 | int val; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 190 | |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 191 | if (hlen != sizeof(int32_t)) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 192 | return -1; |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 193 | val = GET_32BIT(handle); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 194 | if (handle_is_ok(val, HANDLE_FILE) || |
| 195 | handle_is_ok(val, HANDLE_DIR)) |
| 196 | return val; |
| 197 | return -1; |
| 198 | } |
| 199 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 200 | static char * |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 201 | handle_to_name(int handle) |
| 202 | { |
| 203 | if (handle_is_ok(handle, HANDLE_DIR)|| |
| 204 | handle_is_ok(handle, HANDLE_FILE)) |
| 205 | return handles[handle].name; |
| 206 | return NULL; |
| 207 | } |
| 208 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 209 | static DIR * |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 210 | handle_to_dir(int handle) |
| 211 | { |
| 212 | if (handle_is_ok(handle, HANDLE_DIR)) |
| 213 | return handles[handle].dirp; |
| 214 | return NULL; |
| 215 | } |
| 216 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 217 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 218 | handle_to_fd(int handle) |
| 219 | { |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 220 | if (handle_is_ok(handle, HANDLE_FILE)) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 221 | return handles[handle].fd; |
| 222 | return -1; |
| 223 | } |
| 224 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 225 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 226 | handle_close(int handle) |
| 227 | { |
| 228 | int ret = -1; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 229 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 230 | if (handle_is_ok(handle, HANDLE_FILE)) { |
| 231 | ret = close(handles[handle].fd); |
| 232 | handles[handle].use = HANDLE_UNUSED; |
| 233 | } else if (handle_is_ok(handle, HANDLE_DIR)) { |
| 234 | ret = closedir(handles[handle].dirp); |
| 235 | handles[handle].use = HANDLE_UNUSED; |
| 236 | } else { |
| 237 | errno = ENOENT; |
| 238 | } |
| 239 | return ret; |
| 240 | } |
| 241 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 242 | static int |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 243 | get_handle(void) |
| 244 | { |
| 245 | char *handle; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 246 | int val = -1; |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 247 | u_int hlen; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 248 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 249 | handle = get_string(&hlen); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 250 | if (hlen < 256) |
| 251 | val = handle_from_string(handle, hlen); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 252 | xfree(handle); |
| 253 | return val; |
| 254 | } |
| 255 | |
| 256 | /* send replies */ |
| 257 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 258 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 259 | send_msg(Buffer *m) |
| 260 | { |
| 261 | int mlen = buffer_len(m); |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 262 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 263 | buffer_put_int(&oqueue, mlen); |
| 264 | buffer_append(&oqueue, buffer_ptr(m), mlen); |
| 265 | buffer_consume(m, mlen); |
| 266 | } |
| 267 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 268 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 269 | send_status(u_int32_t id, u_int32_t error) |
| 270 | { |
| 271 | Buffer msg; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 272 | const char *status_messages[] = { |
| 273 | "Success", /* SSH_FX_OK */ |
| 274 | "End of file", /* SSH_FX_EOF */ |
| 275 | "No such file", /* SSH_FX_NO_SUCH_FILE */ |
| 276 | "Permission denied", /* SSH_FX_PERMISSION_DENIED */ |
| 277 | "Failure", /* SSH_FX_FAILURE */ |
| 278 | "Bad message", /* SSH_FX_BAD_MESSAGE */ |
| 279 | "No connection", /* SSH_FX_NO_CONNECTION */ |
| 280 | "Connection lost", /* SSH_FX_CONNECTION_LOST */ |
| 281 | "Operation unsupported", /* SSH_FX_OP_UNSUPPORTED */ |
| 282 | "Unknown error" /* Others */ |
| 283 | }; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 284 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 285 | TRACE("sent status id %d error %d", id, error); |
| 286 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 287 | buffer_put_char(&msg, SSH2_FXP_STATUS); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 288 | buffer_put_int(&msg, id); |
| 289 | buffer_put_int(&msg, error); |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 290 | if (version >= 3) { |
Ben Lindstrom | a370005 | 2001-04-05 23:26:32 +0000 | [diff] [blame] | 291 | buffer_put_cstring(&msg, |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 292 | status_messages[MIN(error,SSH2_FX_MAX)]); |
| 293 | buffer_put_cstring(&msg, ""); |
| 294 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 295 | send_msg(&msg); |
| 296 | buffer_free(&msg); |
| 297 | } |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 298 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 299 | send_data_or_handle(char type, u_int32_t id, char *data, int dlen) |
| 300 | { |
| 301 | Buffer msg; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 302 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 303 | buffer_init(&msg); |
| 304 | buffer_put_char(&msg, type); |
| 305 | buffer_put_int(&msg, id); |
| 306 | buffer_put_string(&msg, data, dlen); |
| 307 | send_msg(&msg); |
| 308 | buffer_free(&msg); |
| 309 | } |
| 310 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 311 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 312 | send_data(u_int32_t id, char *data, int dlen) |
| 313 | { |
| 314 | TRACE("sent data id %d len %d", id, dlen); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 315 | send_data_or_handle(SSH2_FXP_DATA, id, data, dlen); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 316 | } |
| 317 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 318 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 319 | send_handle(u_int32_t id, int handle) |
| 320 | { |
| 321 | char *string; |
| 322 | int hlen; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 323 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 324 | handle_to_string(handle, &string, &hlen); |
| 325 | TRACE("sent handle id %d handle %d", id, handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 326 | send_data_or_handle(SSH2_FXP_HANDLE, id, string, hlen); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 327 | xfree(string); |
| 328 | } |
| 329 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 330 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 331 | send_names(u_int32_t id, int count, Stat *stats) |
| 332 | { |
| 333 | Buffer msg; |
| 334 | int i; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 335 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 336 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 337 | buffer_put_char(&msg, SSH2_FXP_NAME); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 338 | buffer_put_int(&msg, id); |
| 339 | buffer_put_int(&msg, count); |
| 340 | TRACE("sent names id %d count %d", id, count); |
| 341 | for (i = 0; i < count; i++) { |
| 342 | buffer_put_cstring(&msg, stats[i].name); |
| 343 | buffer_put_cstring(&msg, stats[i].long_name); |
| 344 | encode_attrib(&msg, &stats[i].attrib); |
| 345 | } |
| 346 | send_msg(&msg); |
| 347 | buffer_free(&msg); |
| 348 | } |
| 349 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 350 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 351 | send_attrib(u_int32_t id, Attrib *a) |
| 352 | { |
| 353 | Buffer msg; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 354 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 355 | TRACE("sent attrib id %d have 0x%x", id, a->flags); |
| 356 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 357 | buffer_put_char(&msg, SSH2_FXP_ATTRS); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 358 | buffer_put_int(&msg, id); |
| 359 | encode_attrib(&msg, a); |
| 360 | send_msg(&msg); |
| 361 | buffer_free(&msg); |
| 362 | } |
| 363 | |
| 364 | /* parse incoming */ |
| 365 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 366 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 367 | process_init(void) |
| 368 | { |
| 369 | Buffer msg; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 370 | |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 371 | version = buffer_get_int(&iqueue); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 372 | TRACE("client version %d", version); |
| 373 | buffer_init(&msg); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 374 | buffer_put_char(&msg, SSH2_FXP_VERSION); |
| 375 | buffer_put_int(&msg, SSH2_FILEXFER_VERSION); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 376 | send_msg(&msg); |
| 377 | buffer_free(&msg); |
| 378 | } |
| 379 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 380 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 381 | process_open(void) |
| 382 | { |
| 383 | u_int32_t id, pflags; |
| 384 | Attrib *a; |
| 385 | char *name; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 386 | int handle, fd, flags, mode, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 387 | |
| 388 | id = get_int(); |
| 389 | name = get_string(NULL); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 390 | pflags = get_int(); /* portable flags */ |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 391 | a = get_attrib(); |
| 392 | flags = flags_from_portable(pflags); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 393 | mode = (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) ? a->perm : 0666; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 394 | TRACE("open id %d name %s flags %d mode 0%o", id, name, pflags, mode); |
| 395 | fd = open(name, flags, mode); |
| 396 | if (fd < 0) { |
| 397 | status = errno_to_portable(errno); |
| 398 | } else { |
| 399 | handle = handle_new(HANDLE_FILE, xstrdup(name), fd, NULL); |
| 400 | if (handle < 0) { |
| 401 | close(fd); |
| 402 | } else { |
| 403 | send_handle(id, handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 404 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 405 | } |
| 406 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 407 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 408 | send_status(id, status); |
| 409 | xfree(name); |
| 410 | } |
| 411 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 412 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 413 | process_close(void) |
| 414 | { |
| 415 | u_int32_t id; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 416 | int handle, ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 417 | |
| 418 | id = get_int(); |
| 419 | handle = get_handle(); |
| 420 | TRACE("close id %d handle %d", id, handle); |
| 421 | ret = handle_close(handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 422 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 423 | send_status(id, status); |
| 424 | } |
| 425 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 426 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 427 | process_read(void) |
| 428 | { |
| 429 | char buf[64*1024]; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 430 | u_int32_t id, len; |
| 431 | int handle, fd, ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 432 | u_int64_t off; |
| 433 | |
| 434 | id = get_int(); |
| 435 | handle = get_handle(); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 436 | off = get_int64(); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 437 | len = get_int(); |
| 438 | |
Kevin Steves | ec1c140 | 2001-02-05 15:39:22 +0000 | [diff] [blame] | 439 | TRACE("read id %d handle %d off %llu len %d", id, handle, |
Ben Lindstrom | 416d874 | 2001-02-25 02:02:43 +0000 | [diff] [blame] | 440 | (u_int64_t)off, len); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 441 | if (len > sizeof buf) { |
| 442 | len = sizeof buf; |
| 443 | log("read change len %d", len); |
| 444 | } |
| 445 | fd = handle_to_fd(handle); |
| 446 | if (fd >= 0) { |
| 447 | if (lseek(fd, off, SEEK_SET) < 0) { |
| 448 | error("process_read: seek failed"); |
| 449 | status = errno_to_portable(errno); |
| 450 | } else { |
| 451 | ret = read(fd, buf, len); |
| 452 | if (ret < 0) { |
| 453 | status = errno_to_portable(errno); |
| 454 | } else if (ret == 0) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 455 | status = SSH2_FX_EOF; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 456 | } else { |
| 457 | send_data(id, buf, ret); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 458 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 459 | } |
| 460 | } |
| 461 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 462 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 463 | send_status(id, status); |
| 464 | } |
| 465 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 466 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 467 | process_write(void) |
| 468 | { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 469 | u_int32_t id; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 470 | u_int64_t off; |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 471 | u_int len; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 472 | int handle, fd, ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 473 | char *data; |
| 474 | |
| 475 | id = get_int(); |
| 476 | handle = get_handle(); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 477 | off = get_int64(); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 478 | data = get_string(&len); |
| 479 | |
Kevin Steves | ec1c140 | 2001-02-05 15:39:22 +0000 | [diff] [blame] | 480 | TRACE("write id %d handle %d off %llu len %d", id, handle, |
Ben Lindstrom | 416d874 | 2001-02-25 02:02:43 +0000 | [diff] [blame] | 481 | (u_int64_t)off, len); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 482 | fd = handle_to_fd(handle); |
| 483 | if (fd >= 0) { |
| 484 | if (lseek(fd, off, SEEK_SET) < 0) { |
| 485 | status = errno_to_portable(errno); |
| 486 | error("process_write: seek failed"); |
| 487 | } else { |
| 488 | /* XXX ATOMICIO ? */ |
| 489 | ret = write(fd, data, len); |
| 490 | if (ret == -1) { |
| 491 | error("process_write: write failed"); |
| 492 | status = errno_to_portable(errno); |
| 493 | } else if (ret == len) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 494 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 495 | } else { |
| 496 | log("nothing at all written"); |
| 497 | } |
| 498 | } |
| 499 | } |
| 500 | send_status(id, status); |
| 501 | xfree(data); |
| 502 | } |
| 503 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 504 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 505 | process_do_stat(int do_lstat) |
| 506 | { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 507 | Attrib a; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 508 | struct stat st; |
| 509 | u_int32_t id; |
| 510 | char *name; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 511 | int ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 512 | |
| 513 | id = get_int(); |
| 514 | name = get_string(NULL); |
| 515 | TRACE("%sstat id %d name %s", do_lstat ? "l" : "", id, name); |
| 516 | ret = do_lstat ? lstat(name, &st) : stat(name, &st); |
| 517 | if (ret < 0) { |
| 518 | status = errno_to_portable(errno); |
| 519 | } else { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 520 | stat_to_attrib(&st, &a); |
| 521 | send_attrib(id, &a); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 522 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 523 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 524 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 525 | send_status(id, status); |
| 526 | xfree(name); |
| 527 | } |
| 528 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 529 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 530 | process_stat(void) |
| 531 | { |
| 532 | process_do_stat(0); |
| 533 | } |
| 534 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 535 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 536 | process_lstat(void) |
| 537 | { |
| 538 | process_do_stat(1); |
| 539 | } |
| 540 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 541 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 542 | process_fstat(void) |
| 543 | { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 544 | Attrib a; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 545 | struct stat st; |
| 546 | u_int32_t id; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 547 | int fd, ret, handle, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 548 | |
| 549 | id = get_int(); |
| 550 | handle = get_handle(); |
| 551 | TRACE("fstat id %d handle %d", id, handle); |
| 552 | fd = handle_to_fd(handle); |
| 553 | if (fd >= 0) { |
| 554 | ret = fstat(fd, &st); |
| 555 | if (ret < 0) { |
| 556 | status = errno_to_portable(errno); |
| 557 | } else { |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 558 | stat_to_attrib(&st, &a); |
| 559 | send_attrib(id, &a); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 560 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 561 | } |
| 562 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 563 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 564 | send_status(id, status); |
| 565 | } |
| 566 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 567 | static struct timeval * |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 568 | attrib_to_tv(Attrib *a) |
| 569 | { |
| 570 | static struct timeval tv[2]; |
Ben Lindstrom | 1addabd | 2001-03-05 07:09:11 +0000 | [diff] [blame] | 571 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 572 | tv[0].tv_sec = a->atime; |
| 573 | tv[0].tv_usec = 0; |
| 574 | tv[1].tv_sec = a->mtime; |
| 575 | tv[1].tv_usec = 0; |
| 576 | return tv; |
| 577 | } |
| 578 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 579 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 580 | process_setstat(void) |
| 581 | { |
| 582 | Attrib *a; |
| 583 | u_int32_t id; |
| 584 | char *name; |
| 585 | int ret; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 586 | int status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 587 | |
| 588 | id = get_int(); |
| 589 | name = get_string(NULL); |
| 590 | a = get_attrib(); |
| 591 | TRACE("setstat id %d name %s", id, name); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 592 | if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 593 | ret = chmod(name, a->perm & 0777); |
| 594 | if (ret == -1) |
| 595 | status = errno_to_portable(errno); |
| 596 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 597 | if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 598 | ret = utimes(name, attrib_to_tv(a)); |
| 599 | if (ret == -1) |
| 600 | status = errno_to_portable(errno); |
| 601 | } |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 602 | if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) { |
| 603 | ret = chown(name, a->uid, a->gid); |
| 604 | if (ret == -1) |
| 605 | status = errno_to_portable(errno); |
| 606 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 607 | send_status(id, status); |
| 608 | xfree(name); |
| 609 | } |
| 610 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 611 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 612 | process_fsetstat(void) |
| 613 | { |
| 614 | Attrib *a; |
| 615 | u_int32_t id; |
| 616 | int handle, fd, ret; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 617 | int status = SSH2_FX_OK; |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 618 | char *name; |
Kevin Steves | f7ffab3 | 2001-01-24 20:11:06 +0000 | [diff] [blame] | 619 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 620 | id = get_int(); |
| 621 | handle = get_handle(); |
| 622 | a = get_attrib(); |
| 623 | TRACE("fsetstat id %d handle %d", id, handle); |
| 624 | fd = handle_to_fd(handle); |
| 625 | name = handle_to_name(handle); |
Kevin Steves | f7ffab3 | 2001-01-24 20:11:06 +0000 | [diff] [blame] | 626 | if (fd < 0 || name == NULL) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 627 | status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 628 | } else { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 629 | if (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) { |
Ben Lindstrom | 200e3c9 | 2001-01-15 01:56:46 +0000 | [diff] [blame] | 630 | #ifdef HAVE_FCHMOD |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 631 | ret = fchmod(fd, a->perm & 0777); |
Ben Lindstrom | 200e3c9 | 2001-01-15 01:56:46 +0000 | [diff] [blame] | 632 | #else |
Kevin Steves | b6b37ba | 2001-01-24 20:01:44 +0000 | [diff] [blame] | 633 | ret = chmod(name, a->perm & 0777); |
Ben Lindstrom | 200e3c9 | 2001-01-15 01:56:46 +0000 | [diff] [blame] | 634 | #endif |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 635 | if (ret == -1) |
| 636 | status = errno_to_portable(errno); |
| 637 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 638 | if (a->flags & SSH2_FILEXFER_ATTR_ACMODTIME) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 639 | #ifdef HAVE_FUTIMES |
| 640 | ret = futimes(fd, attrib_to_tv(a)); |
| 641 | #else |
| 642 | ret = utimes(name, attrib_to_tv(a)); |
| 643 | #endif |
| 644 | if (ret == -1) |
| 645 | status = errno_to_portable(errno); |
| 646 | } |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 647 | if (a->flags & SSH2_FILEXFER_ATTR_UIDGID) { |
Ben Lindstrom | 34bb0c7 | 2001-02-13 02:40:56 +0000 | [diff] [blame] | 648 | #ifdef HAVE_FCHOWN |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 649 | ret = fchown(fd, a->uid, a->gid); |
Ben Lindstrom | 34bb0c7 | 2001-02-13 02:40:56 +0000 | [diff] [blame] | 650 | #else |
| 651 | ret = chown(name, a->uid, a->gid); |
| 652 | #endif |
Kevin Steves | 8e74393 | 2001-02-05 13:24:35 +0000 | [diff] [blame] | 653 | if (ret == -1) |
| 654 | status = errno_to_portable(errno); |
| 655 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 656 | } |
| 657 | send_status(id, status); |
| 658 | } |
| 659 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 660 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 661 | process_opendir(void) |
| 662 | { |
| 663 | DIR *dirp = NULL; |
| 664 | char *path; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 665 | int handle, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 666 | u_int32_t id; |
| 667 | |
| 668 | id = get_int(); |
| 669 | path = get_string(NULL); |
| 670 | TRACE("opendir id %d path %s", id, path); |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 671 | dirp = opendir(path); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 672 | if (dirp == NULL) { |
| 673 | status = errno_to_portable(errno); |
| 674 | } else { |
| 675 | handle = handle_new(HANDLE_DIR, xstrdup(path), 0, dirp); |
| 676 | if (handle < 0) { |
| 677 | closedir(dirp); |
| 678 | } else { |
| 679 | send_handle(id, handle); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 680 | status = SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 681 | } |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 682 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 683 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 684 | if (status != SSH2_FX_OK) |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 685 | send_status(id, status); |
| 686 | xfree(path); |
| 687 | } |
| 688 | |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 689 | /* |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 690 | * drwxr-xr-x 5 markus markus 1024 Jan 13 18:39 .ssh |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 691 | */ |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 692 | static char * |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 693 | ls_file(char *name, struct stat *st) |
| 694 | { |
Ben Lindstrom | 488d880 | 2001-06-25 04:24:49 +0000 | [diff] [blame] | 695 | int ulen, glen, sz = 0; |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 696 | struct passwd *pw; |
| 697 | struct group *gr; |
| 698 | struct tm *ltime = localtime(&st->st_mtime); |
| 699 | char *user, *group; |
| 700 | char buf[1024], mode[11+1], tbuf[12+1], ubuf[11+1], gbuf[11+1]; |
| 701 | |
| 702 | strmode(st->st_mode, mode); |
| 703 | if ((pw = getpwuid(st->st_uid)) != NULL) { |
| 704 | user = pw->pw_name; |
| 705 | } else { |
| 706 | snprintf(ubuf, sizeof ubuf, "%d", st->st_uid); |
| 707 | user = ubuf; |
| 708 | } |
| 709 | if ((gr = getgrgid(st->st_gid)) != NULL) { |
| 710 | group = gr->gr_name; |
| 711 | } else { |
| 712 | snprintf(gbuf, sizeof gbuf, "%d", st->st_gid); |
| 713 | group = gbuf; |
| 714 | } |
| 715 | if (ltime != NULL) { |
| 716 | if (time(NULL) - st->st_mtime < (365*24*60*60)/2) |
| 717 | sz = strftime(tbuf, sizeof tbuf, "%b %e %H:%M", ltime); |
| 718 | else |
| 719 | sz = strftime(tbuf, sizeof tbuf, "%b %e %Y", ltime); |
| 720 | } |
| 721 | if (sz == 0) |
| 722 | tbuf[0] = '\0'; |
Ben Lindstrom | 488d880 | 2001-06-25 04:24:49 +0000 | [diff] [blame] | 723 | ulen = MAX(strlen(user), 8); |
| 724 | glen = MAX(strlen(group), 8); |
| 725 | snprintf(buf, sizeof buf, "%s %3d %-*s %-*s %8llu %s %s", mode, |
| 726 | st->st_nlink, ulen, user, glen, group, |
| 727 | (u_int64_t)st->st_size, tbuf, name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 728 | return xstrdup(buf); |
| 729 | } |
| 730 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 731 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 732 | process_readdir(void) |
| 733 | { |
| 734 | DIR *dirp; |
| 735 | struct dirent *dp; |
| 736 | char *path; |
| 737 | int handle; |
| 738 | u_int32_t id; |
| 739 | |
| 740 | id = get_int(); |
| 741 | handle = get_handle(); |
| 742 | TRACE("readdir id %d handle %d", id, handle); |
| 743 | dirp = handle_to_dir(handle); |
| 744 | path = handle_to_name(handle); |
| 745 | if (dirp == NULL || path == NULL) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 746 | send_status(id, SSH2_FX_FAILURE); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 747 | } else { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 748 | struct stat st; |
| 749 | char pathname[1024]; |
| 750 | Stat *stats; |
| 751 | int nstats = 10, count = 0, i; |
| 752 | stats = xmalloc(nstats * sizeof(Stat)); |
| 753 | while ((dp = readdir(dirp)) != NULL) { |
| 754 | if (count >= nstats) { |
| 755 | nstats *= 2; |
| 756 | stats = xrealloc(stats, nstats * sizeof(Stat)); |
| 757 | } |
| 758 | /* XXX OVERFLOW ? */ |
Ben Lindstrom | 95148e3 | 2001-08-06 21:30:53 +0000 | [diff] [blame] | 759 | snprintf(pathname, sizeof pathname, "%s%s%s", path, |
| 760 | strcmp(path, "/") ? "/" : "", dp->d_name); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 761 | if (lstat(pathname, &st) < 0) |
| 762 | continue; |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 763 | stat_to_attrib(&st, &(stats[count].attrib)); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 764 | stats[count].name = xstrdup(dp->d_name); |
| 765 | stats[count].long_name = ls_file(dp->d_name, &st); |
| 766 | count++; |
| 767 | /* send up to 100 entries in one message */ |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 768 | /* XXX check packet size instead */ |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 769 | if (count == 100) |
| 770 | break; |
| 771 | } |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 772 | if (count > 0) { |
| 773 | send_names(id, count, stats); |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 774 | for (i = 0; i < count; i++) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 775 | xfree(stats[i].name); |
| 776 | xfree(stats[i].long_name); |
| 777 | } |
| 778 | } else { |
| 779 | send_status(id, SSH2_FX_EOF); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 780 | } |
| 781 | xfree(stats); |
| 782 | } |
| 783 | } |
| 784 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 785 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 786 | process_remove(void) |
| 787 | { |
| 788 | char *name; |
| 789 | u_int32_t id; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 790 | int status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 791 | int ret; |
| 792 | |
| 793 | id = get_int(); |
| 794 | name = get_string(NULL); |
| 795 | TRACE("remove id %d name %s", id, name); |
Kevin Steves | a074feb | 2000-12-21 22:33:45 +0000 | [diff] [blame] | 796 | ret = unlink(name); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 797 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 798 | send_status(id, status); |
| 799 | xfree(name); |
| 800 | } |
| 801 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 802 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 803 | process_mkdir(void) |
| 804 | { |
| 805 | Attrib *a; |
| 806 | u_int32_t id; |
| 807 | char *name; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 808 | int ret, mode, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 809 | |
| 810 | id = get_int(); |
| 811 | name = get_string(NULL); |
| 812 | a = get_attrib(); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 813 | mode = (a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) ? |
| 814 | a->perm & 0777 : 0777; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 815 | TRACE("mkdir id %d name %s mode 0%o", id, name, mode); |
| 816 | ret = mkdir(name, mode); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 817 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 818 | send_status(id, status); |
| 819 | xfree(name); |
| 820 | } |
| 821 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 822 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 823 | process_rmdir(void) |
| 824 | { |
| 825 | u_int32_t id; |
| 826 | char *name; |
| 827 | int ret, status; |
| 828 | |
| 829 | id = get_int(); |
| 830 | name = get_string(NULL); |
| 831 | TRACE("rmdir id %d name %s", id, name); |
| 832 | ret = rmdir(name); |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 833 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 834 | send_status(id, status); |
| 835 | xfree(name); |
| 836 | } |
| 837 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 838 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 839 | process_realpath(void) |
| 840 | { |
| 841 | char resolvedname[MAXPATHLEN]; |
| 842 | u_int32_t id; |
| 843 | char *path; |
| 844 | |
| 845 | id = get_int(); |
| 846 | path = get_string(NULL); |
Ben Lindstrom | fa1b3d0 | 2000-12-10 01:55:37 +0000 | [diff] [blame] | 847 | if (path[0] == '\0') { |
| 848 | xfree(path); |
| 849 | path = xstrdup("."); |
| 850 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 851 | TRACE("realpath id %d path %s", id, path); |
| 852 | if (realpath(path, resolvedname) == NULL) { |
| 853 | send_status(id, errno_to_portable(errno)); |
| 854 | } else { |
| 855 | Stat s; |
| 856 | attrib_clear(&s.attrib); |
| 857 | s.name = s.long_name = resolvedname; |
| 858 | send_names(id, 1, &s); |
| 859 | } |
| 860 | xfree(path); |
| 861 | } |
| 862 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 863 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 864 | process_rename(void) |
| 865 | { |
| 866 | u_int32_t id; |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 867 | struct stat st; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 868 | char *oldpath, *newpath; |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 869 | int ret, status = SSH2_FX_FAILURE; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 870 | |
| 871 | id = get_int(); |
| 872 | oldpath = get_string(NULL); |
| 873 | newpath = get_string(NULL); |
| 874 | TRACE("rename id %d old %s new %s", id, oldpath, newpath); |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 875 | /* fail if 'newpath' exists */ |
| 876 | if (stat(newpath, &st) == -1) { |
| 877 | ret = rename(oldpath, newpath); |
| 878 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
| 879 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 880 | send_status(id, status); |
| 881 | xfree(oldpath); |
| 882 | xfree(newpath); |
| 883 | } |
| 884 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 885 | static void |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 886 | process_readlink(void) |
| 887 | { |
| 888 | u_int32_t id; |
Ben Lindstrom | abbb73d | 2001-05-17 03:14:57 +0000 | [diff] [blame] | 889 | int len; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 890 | char link[MAXPATHLEN]; |
| 891 | char *path; |
| 892 | |
| 893 | id = get_int(); |
| 894 | path = get_string(NULL); |
| 895 | TRACE("readlink id %d path %s", id, path); |
Ben Lindstrom | abbb73d | 2001-05-17 03:14:57 +0000 | [diff] [blame] | 896 | if ((len = readlink(path, link, sizeof(link) - 1)) == -1) |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 897 | send_status(id, errno_to_portable(errno)); |
| 898 | else { |
| 899 | Stat s; |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 900 | |
Ben Lindstrom | abbb73d | 2001-05-17 03:14:57 +0000 | [diff] [blame] | 901 | link[len] = '\0'; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 902 | attrib_clear(&s.attrib); |
| 903 | s.name = s.long_name = link; |
| 904 | send_names(id, 1, &s); |
| 905 | } |
| 906 | xfree(path); |
| 907 | } |
| 908 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 909 | static void |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 910 | process_symlink(void) |
| 911 | { |
| 912 | u_int32_t id; |
| 913 | struct stat st; |
| 914 | char *oldpath, *newpath; |
| 915 | int ret, status = SSH2_FX_FAILURE; |
| 916 | |
| 917 | id = get_int(); |
| 918 | oldpath = get_string(NULL); |
| 919 | newpath = get_string(NULL); |
| 920 | TRACE("symlink id %d old %s new %s", id, oldpath, newpath); |
| 921 | /* fail if 'newpath' exists */ |
| 922 | if (stat(newpath, &st) == -1) { |
| 923 | ret = symlink(oldpath, newpath); |
| 924 | status = (ret == -1) ? errno_to_portable(errno) : SSH2_FX_OK; |
| 925 | } |
| 926 | send_status(id, status); |
| 927 | xfree(oldpath); |
| 928 | xfree(newpath); |
| 929 | } |
| 930 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 931 | static void |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 932 | process_extended(void) |
| 933 | { |
| 934 | u_int32_t id; |
| 935 | char *request; |
| 936 | |
| 937 | id = get_int(); |
| 938 | request = get_string(NULL); |
| 939 | send_status(id, SSH2_FX_OP_UNSUPPORTED); /* MUST */ |
| 940 | xfree(request); |
| 941 | } |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 942 | |
| 943 | /* stolen from ssh-agent */ |
| 944 | |
Ben Lindstrom | bba8121 | 2001-06-25 05:01:22 +0000 | [diff] [blame] | 945 | static void |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 946 | process(void) |
| 947 | { |
Ben Lindstrom | 46c1622 | 2000-12-22 01:43:59 +0000 | [diff] [blame] | 948 | u_int msg_len; |
| 949 | u_int type; |
| 950 | u_char *cp; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 951 | |
| 952 | if (buffer_len(&iqueue) < 5) |
| 953 | return; /* Incomplete message. */ |
Damien Miller | 708d21c | 2002-01-22 23:18:15 +1100 | [diff] [blame^] | 954 | cp = buffer_ptr(&iqueue); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 955 | msg_len = GET_32BIT(cp); |
| 956 | if (msg_len > 256 * 1024) { |
| 957 | error("bad message "); |
| 958 | exit(11); |
| 959 | } |
| 960 | if (buffer_len(&iqueue) < msg_len + 4) |
| 961 | return; |
| 962 | buffer_consume(&iqueue, 4); |
| 963 | type = buffer_get_char(&iqueue); |
| 964 | switch (type) { |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 965 | case SSH2_FXP_INIT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 966 | process_init(); |
| 967 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 968 | case SSH2_FXP_OPEN: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 969 | process_open(); |
| 970 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 971 | case SSH2_FXP_CLOSE: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 972 | process_close(); |
| 973 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 974 | case SSH2_FXP_READ: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 975 | process_read(); |
| 976 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 977 | case SSH2_FXP_WRITE: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 978 | process_write(); |
| 979 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 980 | case SSH2_FXP_LSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 981 | process_lstat(); |
| 982 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 983 | case SSH2_FXP_FSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 984 | process_fstat(); |
| 985 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 986 | case SSH2_FXP_SETSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 987 | process_setstat(); |
| 988 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 989 | case SSH2_FXP_FSETSTAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 990 | process_fsetstat(); |
| 991 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 992 | case SSH2_FXP_OPENDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 993 | process_opendir(); |
| 994 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 995 | case SSH2_FXP_READDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 996 | process_readdir(); |
| 997 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 998 | case SSH2_FXP_REMOVE: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 999 | process_remove(); |
| 1000 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1001 | case SSH2_FXP_MKDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1002 | process_mkdir(); |
| 1003 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1004 | case SSH2_FXP_RMDIR: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1005 | process_rmdir(); |
| 1006 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1007 | case SSH2_FXP_REALPATH: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1008 | process_realpath(); |
| 1009 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1010 | case SSH2_FXP_STAT: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1011 | process_stat(); |
| 1012 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1013 | case SSH2_FXP_RENAME: |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1014 | process_rename(); |
| 1015 | break; |
Damien Miller | 058316f | 2001-03-08 10:08:49 +1100 | [diff] [blame] | 1016 | case SSH2_FXP_READLINK: |
| 1017 | process_readlink(); |
| 1018 | break; |
| 1019 | case SSH2_FXP_SYMLINK: |
| 1020 | process_symlink(); |
| 1021 | break; |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1022 | case SSH2_FXP_EXTENDED: |
| 1023 | process_extended(); |
| 1024 | break; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1025 | default: |
| 1026 | error("Unknown message %d", type); |
| 1027 | break; |
| 1028 | } |
| 1029 | } |
| 1030 | |
| 1031 | int |
| 1032 | main(int ac, char **av) |
| 1033 | { |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1034 | fd_set *rset, *wset; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1035 | int in, out, max; |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1036 | ssize_t len, olen, set_size; |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1037 | |
Ben Lindstrom | c7f4ccd | 2001-03-15 00:09:15 +0000 | [diff] [blame] | 1038 | /* XXX should use getopt */ |
| 1039 | |
Ben Lindstrom | 49a79c0 | 2000-11-17 03:47:20 +0000 | [diff] [blame] | 1040 | __progname = get_progname(av[0]); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1041 | handle_init(); |
| 1042 | |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 1043 | #ifdef DEBUG_SFTP_SERVER |
Kevin Steves | ef4eea9 | 2001-02-05 12:42:17 +0000 | [diff] [blame] | 1044 | log_init("sftp-server", SYSLOG_LEVEL_DEBUG1, SYSLOG_FACILITY_AUTH, 0); |
Ben Lindstrom | bf555ba | 2001-01-18 02:04:35 +0000 | [diff] [blame] | 1045 | #endif |
Ben Lindstrom | 2f959b4 | 2001-01-11 06:20:23 +0000 | [diff] [blame] | 1046 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1047 | in = dup(STDIN_FILENO); |
| 1048 | out = dup(STDOUT_FILENO); |
| 1049 | |
Damien Miller | 402b331 | 2001-04-14 00:28:42 +1000 | [diff] [blame] | 1050 | #ifdef HAVE_CYGWIN |
| 1051 | setmode(in, O_BINARY); |
| 1052 | setmode(out, O_BINARY); |
| 1053 | #endif |
| 1054 | |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1055 | max = 0; |
| 1056 | if (in > max) |
| 1057 | max = in; |
| 1058 | if (out > max) |
| 1059 | max = out; |
| 1060 | |
| 1061 | buffer_init(&iqueue); |
| 1062 | buffer_init(&oqueue); |
| 1063 | |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1064 | set_size = howmany(max + 1, NFDBITS) * sizeof(fd_mask); |
| 1065 | rset = (fd_set *)xmalloc(set_size); |
| 1066 | wset = (fd_set *)xmalloc(set_size); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1067 | |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1068 | for (;;) { |
| 1069 | memset(rset, 0, set_size); |
| 1070 | memset(wset, 0, set_size); |
| 1071 | |
| 1072 | FD_SET(in, rset); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1073 | olen = buffer_len(&oqueue); |
| 1074 | if (olen > 0) |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1075 | FD_SET(out, wset); |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1076 | |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1077 | if (select(max+1, rset, wset, NULL, NULL) < 0) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1078 | if (errno == EINTR) |
| 1079 | continue; |
| 1080 | exit(2); |
| 1081 | } |
| 1082 | |
| 1083 | /* copy stdin to iqueue */ |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1084 | if (FD_ISSET(in, rset)) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1085 | char buf[4*4096]; |
| 1086 | len = read(in, buf, sizeof buf); |
| 1087 | if (len == 0) { |
| 1088 | debug("read eof"); |
| 1089 | exit(0); |
| 1090 | } else if (len < 0) { |
| 1091 | error("read error"); |
| 1092 | exit(1); |
| 1093 | } else { |
| 1094 | buffer_append(&iqueue, buf, len); |
| 1095 | } |
| 1096 | } |
| 1097 | /* send oqueue to stdout */ |
Ben Lindstrom | cb80bdf | 2001-03-05 07:06:12 +0000 | [diff] [blame] | 1098 | if (FD_ISSET(out, wset)) { |
Damien Miller | 7b28dc5 | 2000-09-05 13:34:53 +1100 | [diff] [blame] | 1099 | len = write(out, buffer_ptr(&oqueue), olen); |
| 1100 | if (len < 0) { |
| 1101 | error("write error"); |
| 1102 | exit(1); |
| 1103 | } else { |
| 1104 | buffer_consume(&oqueue, len); |
| 1105 | } |
| 1106 | } |
| 1107 | /* process requests from client */ |
| 1108 | process(); |
| 1109 | } |
| 1110 | } |