dist/diff/diff.c

949   struct file_data inf[2];
971   bzero (inf, sizeof (inf));
976   inf[0].desc = name0 == 0 ? -1 : -2;
977   inf[1].desc = name1 == 0 ? -1 : -2;
986   inf[0].name = dir0 == 0 ? name0 : (free0 = dir_file_pathname (dir0, name0));
987   inf[1].name = dir1 == 0 ? name1 : (free1 = dir_file_pathname (dir1, name1));
993       if (inf[i].desc != -1)
997 	  if (i && filename_cmp (inf[i].name, inf[0].name) == 0)
999 	      inf[i].stat = inf[0].stat;
1002 	  else if (strcmp (inf[i].name, "-") == 0)
1004 	      inf[i].desc = STDIN_FILENO;
1005 	      stat_result = fstat (STDIN_FILENO, &inf[i].stat);
1006 	      if (stat_result == 0 && S_ISREG (inf[i].stat.st_mode))
1013 		      if (pos <= inf[i].stat.st_size)
1014 			inf[i].stat.st_size -= pos;
1016 			inf[i].stat.st_size = 0;
1018 		      time (&inf[i].stat.st_mtime);
1023 	    stat_result = stat (inf[i].name, &inf[i].stat);
1027 	      perror_with_name (inf[i].name);
1032 	      inf[i].dir_p = S_ISDIR (inf[i].stat.st_mode) && inf[i].desc != 0;
1033 	      if (inf[1 - i].desc == -1)
1035 		  inf[1 - i].dir_p = inf[i].dir_p;
1036 		  inf[1 - i].stat.st_mode = inf[i].stat.st_mode;
1042   if (! failed && depth == 0 && inf[0].dir_p != inf[1].dir_p)
1047       int fnm_arg = inf[0].dir_p;
1049       char const *fnm = inf[fnm_arg].name;
1050       char const *dir = inf[dir_arg].name;
1052       char const *filename = inf[dir_arg].name
1058       if (stat (filename, &inf[dir_arg].stat) != 0)
1064 	inf[dir_arg].dir_p = S_ISDIR (inf[dir_arg].stat.st_mode);
1075   else if ((same_files = inf[0].desc != -1 && inf[1].desc != -1
1076 			 && 0 < same_file (&inf[0].stat, &inf[1].stat))
1084   else if (inf[0].dir_p & inf[1].dir_p)
1096 		   inf[0].name, inf[1].name);
1101 	  val = diff_dirs (inf, compare_files, depth);
1105   else if ((inf[0].dir_p | inf[1].dir_p)
1107 	       && (! S_ISREG (inf[0].stat.st_mode)
1108 		   || ! S_ISREG (inf[1].stat.st_mode))))
1113       if (inf[0].desc == -1 || inf[1].desc == -1)
1115 	  if ((inf[0].dir_p | inf[1].dir_p)
1118 		  || (unidirectional_new_file_flag && inf[0].desc == -1)))
1119 	    val = diff_dirs (inf, compare_files, depth);
1122 	      char const *dir = (inf[0].desc == -1) ? dir1 : dir0;
1134 		    inf[0].name, filetype (&inf[0].stat),
1135 		    inf[1].name, filetype (&inf[1].stat));
1142 	   && inf[0].stat.st_size != inf[1].stat.st_size
1143 	   && (inf[0].desc == -1 || S_ISREG (inf[0].stat.st_mode))
1144 	   && (inf[1].desc == -1 || S_ISREG (inf[1].stat.st_mode)))
1146       message ("Files %s and %s differ\n", inf[0].name, inf[1].name);
1155       if (inf[0].desc == -2)
1156 	if ((inf[0].desc = open (inf[0].name, O_RDONLY, 0)) < 0)
1158 	    perror_with_name (inf[0].name);
1161       if (inf[1].desc == -2)
1164 	    inf[1].desc = inf[0].desc;
1165 	  else if ((inf[1].desc = open (inf[1].name, O_RDONLY, 0)) < 0)
1167 	      perror_with_name (inf[1].name);
1175 	  if (0 <= inf[i].desc)
1176 	    setmode (inf[i].desc, O_BINARY);
1181       val = failed ? 2 : diff_2_files (inf, depth);
1185       if (inf[0].desc >= 0 && close (inf[0].desc) != 0)
1187 	  perror_with_name (inf[0].name);
1190       if (inf[1].desc >= 0 && inf[0].desc != inf[1].desc
1191 	  && close (inf[1].desc) != 0)
1193 	  perror_with_name (inf[1].name);
1201   if (val == 0 && !inf[0].dir_p)
1205 		 inf[0].name, inf[1].name);