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- /*
- * Print the information for a given transport provider.
- */
-
- #include <stdio.h>
- #include <fcntl.h>
- #include <tiuser.h>
-
- main()
- {
- doit("/dev/tcp");
- doit("/dev/udp");
- }
-
- doit(name)
- char *name;
- {
- int tfd;
- struct t_info info;
-
- if ( (tfd = t_open(name, O_RDWR, &info)) < 0)
- err_sys("can't open %s", name);
-
- printf("Protocol = %s", name);
- printf("\n %8ld: max size of address", info.addr);
- if (info.addr == -2)
- printf(" (no user access to addresses)");
- else if (info.addr == -1)
- printf(" (no limit on size of address)");
-
- printf("\n %8ld: max #bytes of options", info.options);
- if (info.options == -2)
- printf(" (not supported)");
- else if (info.options == -1)
- printf(" (no limit on option size)");
-
- printf("\n %8ld: max size of data unit", info.tsdu);
- if (info.tsdu == -2)
- printf(" (transfer of normal data is not supported)");
- else if (info.tsdu == -1)
- printf(" (no limit on size of data unit)");
- else if (info.tsdu == 0)
- printf(" (data has no logical boundaries)");
-
- printf("\n %8ld: max size of expedited data unit", info.etsdu);
- if (info.etsdu == -2)
- printf(" (transfer of normal data is not supported)");
- else if (info.etsdu == -1)
- printf(" (no limit on size of data unit)");
- else if (info.etsdu == 0)
- printf(" (data has no logical boundaries)");
-
- printf("\n %8ld: max amount of data with connect", info.connect);
- if (info.connect == -2)
- printf(" (not allowed)");
- else if (info.connect == -1)
- printf(" (no limit)");
-
- printf("\n %8ld: max amount of data with disconnect", info.discon);
- if (info.discon == -2)
- printf(" (not allowed)");
- else if (info.discon == -1)
- printf(" (no limit)");
-
- printf("\n %8ld: service type", info.servtype);
- if (info.servtype == T_COTS)
- printf(" (connection-oriented withOUT orderly release)");
- else if (info.servtype == T_COTS_ORD)
- printf(" (connection-oriented WITH orderly release)");
- else if (info.servtype == T_CLTS)
- printf(" (connectionless)");
- else
- printf(" (??????)");
- putchar('\n');
-
- fflush(stdout);
- }
-