3 * Copyright (C) 1988-1998 by the Massachusetts Institute of Technology.
4 * For copying and distribution information, please see the file
8 #include <mit-copyright.h>
10 #include "update_server.h"
25 extern des_cblock session;
29 * (already sent) pathname file_size checksum
30 * <<< (int)code can we send it?
36 * >>> data (last block)
37 * <<< 0 (on final write, close, sync, checksum)
41 * 1 on error (file not found, etc)
44 int mr_send_file(int conn, char *pathname, char *target_path, int encrypt)
46 int n, fd, code, n_to_send, i;
47 char data[UPDATE_BUFSIZ], enc[UPDATE_BUFSIZ];
50 des_key_schedule sched;
54 fd = open(pathname, O_RDONLY, 0);
57 com_err(whoami, errno, "unable to open %s for read", pathname);
60 if (fstat(fd, &statb))
62 com_err(whoami, errno, "unable to stat %s", pathname);
66 n_to_send = statb.st_size;
68 sprintf(data, "XFER_00%c %d %d %s", (encrypt ? '3' : '2'), n_to_send,
69 checksum_file(pathname), target_path);
70 code = send_string(conn, data, strlen(data) + 1);
73 com_err(whoami, code, "sending XFER request");
77 code = recv_int(conn, &response);
80 com_err(whoami, code, "getting reply from XFER request");
86 com_err(whoami, response, "transfer request (XFER) rejected");
91 code = recv_int(conn, &response);
94 com_err(whoami, code, ": lost connection");
100 com_err(whoami, response, " from remote server: can't update %s",
108 des_key_sched(session, sched);
109 memmove(ivec, session, sizeof(ivec));
112 while (n_to_send > 0)
114 n = read(fd, data, sizeof(data));
117 com_err(whoami, errno, "reading %s for transmission", pathname);
123 memset(data + n, 0, sizeof(data) -n);
124 des_pcbc_encrypt(data, enc, n, sched, ivec, 0);
125 /* save vector to continue chaining */
126 for (i = 0; i < 8; i++)
127 ivec[i] = data[n - 8 + i] ^ enc[n - 8 + i];
128 /* round up to multiple of 8 */
130 code = send_string(conn, enc, n);
133 code = send_string(conn, data, n);
136 com_err(whoami, code, "transmitting file %s", pathname);
142 code = recv_int(conn, &response);
145 com_err(whoami, code, "awaiting ACK during transmission of %s",
152 com_err(whoami, response,
153 "from remote server during transmission of %s",
160 if (statb.st_size == 0)
162 code = recv_int(conn, &response);
165 com_err(whoami, code, "awaiting ACK after transmission of %s",
172 com_err(whoami, response,
173 "from remote server after transmission of %s",