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*** empty log message ***

François Pinard 30 years ago
parent
commit
5aac7fa0e7
2 changed files with 133 additions and 57 deletions
  1. 107 44
      src/list.c
  2. 26 13
      src/rtapelib.c

+ 107 - 44
src/list.c

@@ -97,11 +97,10 @@ read_and(do_something)
 		case 1:			/* Valid header */
 			/* We should decode next field (mode) first... */
 			/* Ensure incoming names are null terminated. */
-			head->header.name[NAMSIZ-1] = '\0';
 
-			if (   !name_match(head->header.name)
+			if (   !name_match(current_file_name)
  			    || (f_new_files && hstat.st_mtime<new_time)
- 			    || (f_exclude && check_exclude(head->header.name))) {
+ 			    || (f_exclude && check_exclude(current_file_name))) {
 
 				int isextended = 0;
 
@@ -113,7 +112,7 @@ read_and(do_something)
 				}
 				if (f_show_omitted_dirs
 				    && head->header.linkflag == LF_DIR)
-				  msg ("Omitting %s\n", head->header.name);
+				  msg ("Omitting %s\n", current_file_name);
 				/* Skip past it in the archive */
 				if (head->header.isextended)
 					isextended = 1;
@@ -172,6 +171,7 @@ read_and(do_something)
 		break;
 	};
 
+	restore_saved_dir_info ();
 	close_archive();
 	names_notfound();		/* Print names not found */
 }		
@@ -204,7 +204,7 @@ list_archive()
 
 		userec(head);
 		if(f_multivol) {
-			save_name = head->header.name;
+			save_name = current_file_name;
 			save_totsize=hstat.st_size;
 		}
 		for(size = hstat.st_size;size>0;size-=written) {
@@ -222,7 +222,7 @@ list_archive()
 			check=fwrite(data,sizeof(char), written, msg_file);
 			userec((union record *)(data+written - 1));
 			if(check!=written) {
-				msg_perror("only wrote %ld of %ld bytes to file %s",check, written,head->header.name);
+				msg_perror("only wrote %ld of %ld bytes to file %s",check, written,current_file_name);
 				skip_file((long)(size)-written);
 				break;
 			}
@@ -264,7 +264,7 @@ list_archive()
 	}
 			
 	if(f_multivol)
-		save_name=head->header.name;
+		save_name=current_file_name;
 	/* Skip to the next header on the archive */
 		
 	skip_file((long) hstat.st_size);
@@ -293,7 +293,13 @@ read_header()
 	register char	*p;
 	register union record *header;
 	long	from_oct();
+	char **longp;
+	char *bp, *data;
+	int size, written;
+	static char *next_long_name, *next_long_link;
 
+      recurse:
+	
 	header = findrec();
 	head = header;		/* This is our current header */
 	if (NULL == header)
@@ -316,17 +322,6 @@ read_header()
 		sum -= 0xFF & header->header.chksum[i];
 	sum += ' '* sizeof header->header.chksum;	
 
-	if (sum == recsum) {
-		/*
-		 * Good record.  Decode file size and return.
-		 */
-		if (header->header.linkflag == LF_LINK)
-			hstat.st_size = 0;	/* Links 0 size on tape */
-		else
-			hstat.st_size = from_oct(1+12, header->header.size);
-		return 1;
-	}
-
 	if (sum == 8*' ') {
 		/*
 		 * This is a zeroed record...whole record is 0's except
@@ -335,7 +330,60 @@ read_header()
 		return 2;
 	}
 
-	return 0;
+	if (sum != recsum) 
+	  return 0;
+	
+	/*
+	 * Good record.  Decode file size and return.
+	 */
+	if (header->header.linkflag == LF_LINK)
+	  hstat.st_size = 0;	/* Links 0 size on tape */
+	else
+	  hstat.st_size = from_oct(1+12, header->header.size);
+	
+	head->header.arch_name[NAMSIZ-1] = '\0';
+	if (header->header.linkflag == LF_LONGNAME
+	    || header->header.linkflag == LF_LONGLINK)
+	  {
+	    longp = ((header->header.linkflag == LF_LONGNAME)
+		     ? &next_long_name
+		     : &next_long_link);
+	    
+	    if (*longp)
+	      free (*longp);
+	    bp = *longp = (char *) ck_malloc (hstat.st_size);
+
+	    for (size = hstat.st_size;
+		 size > 0;
+		 size -= written)
+	      {
+		data = findrec ()->charptr;
+		if (data == NULL)
+		  {
+		    msg ("Unexpected EOF on archive file");
+		    break;
+		  }
+		written = endofrecs () ->charptr - data;
+		if (written > size)
+		  written = size;
+		     
+		bcopy (data, bp, written);
+		bp += written;
+		userec ((union record *) (data + written - 1));
+	      }
+	    goto recurse;
+	  }
+	else
+	  {
+	    current_file_name = (next_long_name
+				 ? next_long_name
+				 : header->header.arch_name);
+	    current_link_name = (next_long_link
+				 ? next_long_link
+				 : header->header.arch_linkname);
+	    next_long_link = next_long_name = 0;
+	    return 1;
+	  }
 }
 
 
@@ -362,8 +410,10 @@ decode_header(header, st, stdp, wantug)
 	int	*stdp;
 	int	wantug;
 {
-
 	long from_oct();
+	char **longp;
+	char *bp, *data;
+	int size, written;
 
 	st->st_mode = from_oct(8,  header->header.mode);
 	st->st_mtime = from_oct(1+12, header->header.mtime);
@@ -372,9 +422,7 @@ decode_header(header, st, stdp, wantug)
 		st->st_ctime = from_oct(1+12, header->header.ctime);
 	}
 	
-	/* Older versions of GNU tar wrote "ustar  \0" instead of
-	   "ustar\0""00" for the magic/version field.  Recognize both.  */
-	if (0==strncmp(header->header.magic, TMAGIC, 5)) {
+	if (0==strcmp(header->header.magic, TMAGIC)) {
 		/* Unix Standard tar archive */
 		*stdp = 1;
 		if (wantug) {
@@ -382,8 +430,14 @@ decode_header(header, st, stdp, wantug)
 			st->st_uid = from_oct(8,  header->header.uid);
 			st->st_gid = from_oct(8,  header->header.gid);
 #else
-			st->st_uid = finduid(header->header.uname);
-			st->st_gid = findgid(header->header.gname);
+			st->st_uid = 
+			  (*header->header.uname
+			   ? finduid (header->header.uname)
+			   : from_oct (8, header->header.uid));
+			st->st_gid =
+			  (*header->header.gname
+			   ? findgid (header->header.gname)
+			   : from_oct (8, header->header.gid));
 #endif
 		}
 #if defined(S_IFBLK) || defined(S_IFCHR)
@@ -466,20 +520,23 @@ print_header()
 	int	pad;
 	char *name;
 	extern long baserec;
+	static char *longname;
+	static char *longlink;
+	int bumplongs;
 
 	if(f_sayblock)
 		fprintf(msg_file,"rec %10d: ",baserec + (ar_record - ar_block));
 	/* annofile(msg_file, (char *)NULL); */
-
+	
 	if (f_verbose <= 1) {
 		/* Just the fax, mam. */
 		char *name;
 
-		name=quote_copy_string(head->header.name);
+		name=quote_copy_string(current_file_name);
 		if(name==0)
-			name=head->header.name;
+			name=current_file_name;
 		fprintf(msg_file, "%s\n", name);
-		if(name!=head->header.name)
+		if(name!=current_file_name)
 			free(name);
 	} else {
 		/* File type and modes */
@@ -497,12 +554,17 @@ print_header()
 			modes[0]='N';
 			break;
 
+		case LF_LONGNAME:
+		case LF_LONGLINK:
+			msg ("Visible longname error\n");
+			break;
+
 		case LF_SPARSE:
 		case LF_NORMAL:
 		case LF_OLDNORMAL:
 		case LF_LINK:
 				modes[0] = '-'; 
-				if ('/' == head->header.name[strlen(head->header.name)-1])
+				if ('/' == current_file_name[strlen(current_file_name)-1])
 					modes[0] = 'd';
 				break;
 		case LF_DUMPDIR:modes[0] = 'd'; break;
@@ -527,13 +589,15 @@ print_header()
 			user  = head->header.uname;
 		} else {
 			user = uform;
-			(void)sprintf(uform, "%d", (int)hstat.st_uid);
+			(void)sprintf(uform, "%d",
+				      from_oct (8, head->header.uid));
 		}
 		if (*head->header.gname && head_standard) {
 			group = head->header.gname;
 		} else {
 			group = gform;
-			(void)sprintf(gform, "%d", (int)hstat.st_gid);
+			(void)sprintf(gform, "%d",
+				      from_oct (8, head->header.gid));
 		}
 
 		/* Format the file size or major/minor device numbers */
@@ -558,10 +622,10 @@ print_header()
 		pad = strlen(user) + strlen(group) + strlen(size) + 1;
 		if (pad > ugswidth) ugswidth = pad;
 
-		name = quote_copy_string(head->header.name);
+		name = quote_copy_string(current_file_name);
 		if(!name)
-			name=head->header.name;
-		fprintf(msg_file, "%s %s/%s %*s%s %s %s %.*s",
+			name=current_file_name;
+		fprintf(msg_file, "%s %s/%s %*s%s %s %s %s",
 			modes,
 			user,
 			group,
@@ -569,27 +633,26 @@ print_header()
 			"",
 			size,
 			timestamp+4, timestamp+20,
-			sizeof(head->header.name),
 			name);
 
-		if(name!=head->header.name)
+		if(name!=current_file_name)
 			free(name);
 		switch (head->header.linkflag) {
 		case LF_SYMLINK:
-			name=quote_copy_string(head->header.linkname);
+			name=quote_copy_string(current_link_name);
 			if(!name)
-				name=head->header.linkname;
+				name=current_link_name;
 			fprintf(msg_file, " -> %s\n", name);
-			if(name!=head->header.linkname)
+			if(name!=current_link_name)
 				free(name);
 			break;
 
 		case LF_LINK:
-			name=quote_copy_string(head->header.linkname);
+			name=quote_copy_string(current_link_name);
 			if(!name)
-				name=head->header.linkname;
-			fprintf(msg_file, " link to %s\n", head->header.linkname);
-			if(name!=head->header.linkname)
+				name=current_link_name;
+			fprintf(msg_file, " link to %s\n", current_link_name);
+			if(name!=current_link_name)
 				free(name);
 			break;
 

+ 26 - 13
src/rtapelib.c

@@ -24,7 +24,7 @@
    and to separate the various arguments with \n instead of a space.  I
    personally don't think that this is much of a problem, but I wanted to
    point it out. -- Arnold Robbins
- 
+
    Originally written by Jeff Lee, modified some by Arnold Robbins.
    Redone as a library that can replace open, read, write, etc., by
    Fred Fish, with some additional work by Arnold Robbins.
@@ -52,6 +52,14 @@
 extern int errno;
 #endif
 
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef STDC_HEADERS
+#include <string.h>
+#include <stdlib.h>
+#endif
+
 /* Maximum size of a fully qualified host name.  */
 #define MAXHOSTLEN 257
 
@@ -74,17 +82,19 @@ extern int errno;
 #define WRITE(fildes) (to_rmt[fildes][1])
 
 /* The pipes for receiving data from remote tape drives.  */
-static int from_rmt[MAXUNIT][2] = {-1, -1, -1, -1, -1, -1, -1, -1};
+static int from_rmt[MAXUNIT][2] =
+{-1, -1, -1, -1, -1, -1, -1, -1};
 
 /* The pipes for sending data to remote tape drives.  */
-static int to_rmt[MAXUNIT][2] = {-1, -1, -1, -1, -1, -1, -1, -1};
+static int to_rmt[MAXUNIT][2] =
+{-1, -1, -1, -1, -1, -1, -1, -1};
 
 /* Temporary variable used by macros in rmt.h.  */
 char *__rmt_path;
 
 /* Close remote tape connection FILDES.  */
 
-static void 
+static void
 _rmt_shutdown (fildes)
      int fildes;
 {
@@ -98,7 +108,7 @@ _rmt_shutdown (fildes)
    on remote tape connection FILDES.
    Return 0 if successful, -1 on error.  */
 
-static int 
+static int
 command (fildes, buf)
      int fildes;
      char *buf;
@@ -127,7 +137,7 @@ command (fildes, buf)
 /* Read and return the status from remote tape connection FILDES.
    If an error occurred, return -1 and set errno.  */
 
-static int 
+static int
 status (fildes)
      int fildes;
 {
@@ -240,6 +250,7 @@ _rmt_rexec (host, user)
 
   return tape_fd;
 }
+
 #endif /* HAVE_NETDB_H */
 
 /* Open a magtape device on the system specified in PATH, as the given user.
@@ -252,7 +263,7 @@ _rmt_rexec (host, user)
    If successful, return the remote tape pipe number plus BIAS.
    On error, return -1.  */
 
-int 
+int
 __rmt_open (path, oflag, mode, bias)
      char *path;
      int oflag;
@@ -263,7 +274,7 @@ __rmt_open (path, oflag, mode, bias)
   char buffer[CMDBUFSIZE];	/* Command buffer.  */
   char system[MAXHOSTLEN];	/* The remote host name.  */
   char device[CMDBUFSIZE];	/* The remote device name.  */
-  char login[CMDBUFSIZE];		/* The remote user name.  */
+  char login[CMDBUFSIZE];	/* The remote user name.  */
   char *sys, *dev, *user;	/* For copying into the above buffers.  */
 
   sys = system;
@@ -409,7 +420,7 @@ __rmt_open (path, oflag, mode, bias)
 /* Close remote tape connection FILDES and shut down.
    Return 0 if successful, -1 on error.  */
 
-int 
+int
 __rmt_close (fildes)
      int fildes;
 {
@@ -426,7 +437,7 @@ __rmt_close (fildes)
 /* Read up to NBYTE bytes into BUF from remote tape connection FILDES.
    Return the number of bytes read on success, -1 on error.  */
 
-int 
+int
 __rmt_read (fildes, buf, nbyte)
      int fildes;
      char *buf;
@@ -441,7 +452,7 @@ __rmt_read (fildes, buf, nbyte)
 
   for (i = 0; i < rc; i += nbyte, buf += nbyte)
     {
-      nbyte = read (READ (fildes), buf, rc);
+      nbyte = read (READ (fildes), buf, rc - i);
       if (nbyte <= 0)
 	{
 	  _rmt_shutdown (fildes);
@@ -456,7 +467,7 @@ __rmt_read (fildes, buf, nbyte)
 /* Write NBYTE bytes from BUF to remote tape connection FILDES.
    Return the number of bytes written on success, -1 on error.  */
 
-int 
+int
 __rmt_write (fildes, buf, nbyte)
      int fildes;
      char *buf;
@@ -486,7 +497,7 @@ __rmt_write (fildes, buf, nbyte)
 /* Perform an imitation lseek operation on remote tape connection FILDES.
    Return the new file offset if successful, -1 if on error.  */
 
-long 
+long
 __rmt_lseek (fildes, offset, whence)
      int fildes;
      long offset;
@@ -505,6 +516,7 @@ __rmt_lseek (fildes, offset, whence)
    Return the results of the ioctl, or -1 on error.  */
 
 #ifdef MTIOCTOP
+int
 __rmt_ioctl (fildes, op, arg)
      int fildes, op;
      char *arg;
@@ -566,4 +578,5 @@ __rmt_ioctl (fildes, op, arg)
       return 0;
     }
 }
+
 #endif