source: trunk/athena/bin/discuss/server/byteswap.diffs @ 6956

*** recover.c   Sat Feb 24 19:01:55 1990
--- byteswap.c  Fri May 10 18:39:06 1991
***************
*** 1,12 ****
  /*
   *
-  *    Copyright (C) 1988, 1989 by the Massachusetts Institute of Technology
-  *            Developed by the MIT Student Information Processing Board (SIPB).
-  *            For copying information, see the file mit-copyright.h in this release.
-  *
-  */
- /*
-  *
   * recover -- program to recover a meeting from the transaction file.
   *          this program is linked to a server so it can use the
   *          privileged procedures of create_mtg, and the like.
--- 1,5 ----
***************
*** 25,30 ****
--- 18,41 ----
  #include <discuss/interface.h>
  #include "mtg.h"
  
+ #if defined(__STDC__) 
+ #define PROTOTYPE(x) x
+ #ifdef NARROW_PROTOTYPES
+ #define DECLARG(type, val) type val
+ #define OLDDECLARG(type, val)
+ #else
+ #define DECLARG(type, val) val
+ #define OLDDECLARG(type, val) type val;
+ #endif /* Narrow prototypes */
+ #else
+ #define PROTOTYPE(x) ()
+ #define DECLARG(type, val) val
+ #define OLDDECLARG(type, val) type val;
+ #endif /* STDC or PROTOTYPES */
+ 
+ extern int add_trn_priv PROTOTYPE((char *, tfile, char *, char *, trn_nums,
+                                 trn_nums, char *, date_times, int,
+                                 trn_nums *, int *));
  #define NULL 0
  #define MAX_TRNS 20000
  #define min(a, b) (a < b ? a : b)
***************
*** 43,53 ****
  
  tfile unix_tfile ();
  char *malloc();
! static fsize(),read_trn_hdr(),read_last_trn(),save_trn();
  
  extern char rpc_caller[];
  extern int has_privs, use_zephyr;
  
  main (argc, argv)
  int argc;
  char **argv;
--- 54,105 ----
  
  tfile unix_tfile ();
  char *malloc();
! static read_trn_hdr(), read_last_trn(), save_trn(), fsize();
  
  extern char rpc_caller[];
  extern int has_privs, use_zephyr;
  
+ #ifndef __GNUC__
+ #define inline
+ #endif
+ 
+ static inline short Sshort (DECLARG(short, P_s))
+       OLDDECLARG(short, P_s)
+ {
+     union {
+       short s;
+       char c[2];
+     } x1, x2;
+     x1.s = P_s;
+     x2.c[0] = x1.c[1];
+     x2.c[1] = x1.c[0];
+     return x2.s;
+ }
+ 
+ static inline long Slong (DECLARG(long, P_l))
+ OLDDECLARG(long, P_l)
+ {
+     union {
+       long l;
+       char c[4];
+     } x1, x2;
+     x1.l = P_l;
+     x2.c[0] = x1.c[3];
+     x2.c[1] = x1.c[2];
+     x2.c[2] = x1.c[1];
+     x2.c[3] = x1.c[0];
+     return x2.l;
+ }
+ 
+ #define S(X) \
+     (sizeof(X)==4             \
+      ? (X = Slong(X))         \
+      : (sizeof(X)==2          \
+       ? (X = Sshort(X))       \
+       : (sizeof(X)==1         \
+          ? 0                  \
+          : abort())))
+ 
  main (argc, argv)
  int argc;
  char **argv;
***************
*** 154,159 ****
--- 206,220 ----
          exit(1);
       }
  
+      S(tb.version);
+      S(tb.unique);
+      S(tb.date_created);
+      S(tb.long_name_addr);
+      S(tb.chairman_addr);
+      S(tb.long_name_len);
+      S(tb.chairman_len);
+      S(tb.public_flag);
+ 
       if (tb.version != TRN_BASE_1) {
          fprintf (stderr, "Invalid trn_base version\n");
          exit(1);
***************
*** 167,173 ****
       /* read the chairman */
       if (chairman == NULL) {
          if (tb.chairman_len > 255) {
!              fprintf (stderr, "Unreasonable chairman length\n");
               exit(1);
          }
          chairman = malloc (tb.chairman_len);
--- 228,235 ----
       /* read the chairman */
       if (chairman == NULL) {
          if (tb.chairman_len > 255) {
!              fprintf (stderr, "Unreasonable chairman length: %d\n",
!                       tb.chairman_len);
               exit(1);
          }
          chairman = malloc (tb.chairman_len);
***************
*** 232,237 ****
--- 294,313 ----
       if (read (trnf, &th, sizeof (th)) != sizeof (th))
          goto no_read;
  
+      S(th.version);
+      S(th.unique);
+      S(th.current);
+      S(th.orig_pref);
+      S(th.date_entered);
+      S(th.num_lines);
+      S(th.num_chars);
+      S(th.prev_trn);
+      S(th.subject_addr);
+      S(th.author_addr);
+      S(th.text_addr);
+      S(th.subject_len);
+      S(th.author_len);
+ 
       /* safety checks */
       if (th.version != TRN_HDR_1) {
          fprintf (stderr, "Invalid trn_hdr version at %d\n", position);
***************
*** 272,277 ****
--- 348,367 ----
       if (read (trnf, &th, sizeof (th)) != sizeof (th))
          return (FALSE);
  
+      S(th.version);
+      S(th.unique);
+      S(th.current);
+      S(th.orig_pref);
+      S(th.date_entered);
+      S(th.num_lines);
+      S(th.num_chars);
+      S(th.prev_trn);
+      S(th.subject_addr);
+      S(th.author_addr);
+      S(th.text_addr);
+      S(th.subject_len);
+      S(th.author_len);
+ 
       /* safety checks */
       if (th.version != TRN_HDR_1) {
          return (FALSE);
***************
*** 314,320 ****
  save_trn (position)
  int position;
  {
!      char *th_subject, *th_author, *th_signature;
       tfile tf;
       int tfs,tocopy;
       trn_nums result_trn;
--- 404,410 ----
  save_trn (position)
  int position;
  {
!      char *th_subject, *th_author;
       tfile tf;
       int tfs,tocopy;
       trn_nums result_trn;
***************
*** 331,341 ****
       lseek (trnf, th.author_addr, 0);
       read (trnf, th_author, th.author_len);
  
-      th_signature = NULL;
-      if (strlen (th_author) + 1 != th.author_len) {
-         th_signature = th_author + strlen(th_author) + 1;
-      }
- 
       /* start temp file */
       ftruncate(tempf,0);
       lseek(tempf,0,0);
--- 421,426 ----
***************
*** 353,359 ****
  
       tf = unix_tfile (tempf);
  
!      add_trn_priv (location, tf, th_subject, th_signature, th.orig_pref, th.current, th_author, th.date_entered, 0, &result_trn, &result);
       if (result != 0) {
          fprintf (stderr, "Couldn't add transaction %d; %s", th.current, error_message(result));
          exit(1);
--- 438,444 ----
  
       tf = unix_tfile (tempf);
  
!      add_trn_priv (location, tf, th_subject, NULL, th.orig_pref, th.current, th_author, th.date_entered, 0, &result_trn, &result);
       if (result != 0) {
          fprintf (stderr, "Couldn't add transaction %d; %s", th.current, error_message(result));
          exit(1);
***************
*** 365,370 ****
--- 450,457 ----
       printf ("Added transaction %d\n", th.current);
       return;
  }
+ 
+ 
  
  /*
   *