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ttyloc.h
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1990-01-22
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/* ttyloc.h -- describes the format of the binary ttyloc file */
#define TTYLOCFILE "/etc/ttyloc.bin"
/* All integers are sizeof(long) bytes long, and are stored in the native
byte order of the machi7'
The file has three sequences of tables: the host table, the terminal
tables and the location strings.
The prelude comes first in the file.
*/
#define TTYMAGIC 0x10c10ccc
struct TTYPrelude {
long magic; /* should be == TTYMAGIC */
long timestamp; /* from TOPS-20 */
};
/* Next comes the count of the number of host entries, followed by the
entries themselves. */
struct HostEntry {
long hostID; /* host address */
long termOffset; /* offset of the terminal table */
};
/* Then we have the terminal tables for each host. Each contains an entry
count followed by a number of terminal entries. */
struct TermEntry {
long termID;
long locOffset; /* offset of description */
};
/* The locOffset field points into the location part of the file which has a
number of null-terminated terminal locations. */