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Problem Report 1180 Details
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Problem Report Number 1180 Submitter's Classification Test Suite problem State Resolved Resolution Rejected (REJ) Problem Resolution ID REJ.X.0382 Raised 1970-01-01 08:00 Updated 2003-03-13 08:00 Published null Product Standard Internationalised System Calls and Libraries Extended (UNIX 95) Certification Program The Open Brand certification program Test Suite VSU version 4.1.0 Test Identification base/readv 22 Problem Summary PG4U.00085 This IR claims that VSU_TERMIOS_TTY may be a pseudo-terminal. Problem Text
Test cases: base/readv22, base/poll25
The problem is in tty_prep() in the capi_com section of the VSU
test functions. This function extracts the name of a tty
from VSU_TERMIOS_TTY. The file for this on our system is
a tty file not currently in use. This same VSU_TERMIOS_TTY file
is used in other test cases as the slave side of the master-slave
pty pair. (See tcgetsid() test cases 1 & 2, which succeed for us).
We are getting an EPERM errno when the test case tries to open
VSU_TERMIOS_TTY and this tty is a slave tty.
Reading the section on unlockpt() I find the following:
"Portable applications must call unlockpt() before opening the
slave side of pseudo-terminal device." Is there somewhere in the
standard that spells out the behavior of pseudo-terminal devices
such that in one instance it is bound by master-slave protocols
and in the next use it can act as an independent device?
tty_prep() does not do a grantpt() followed by an unlockpt().
It seems that the test case is opening a slave tty in a non-portable
manner. There are (at least) two test cases that fail. Please note
that poll25 fails for other reasons but also fails due to EPERM
from the open of VSU_TERMIOS_TTY.Test Output
TEST PURPOSE #22
10|1433 /tset/CAPIbase/freadv/freadv22 00:57:40|TC Start, scenario ref 1
15|1432 1.10 1|TCM Start
400|1432 22 1 00:57:41|IC Start
200|1432 1 00:57:41|TP Start
520|1432 1 65208337 1 1|SPEC1170TESTSUITE CASE 22
520|1432 1 65208337 1 2|A call to ssize_t readv(int fildes, const struct iovec
520|1432 1 65208337 1 3|*iov, int iovcnt) when the function is interrupt
520|1432 1 65208337 1 4|a signal after it has successfully read some dat
520|1432 1 65208337 1 5|shall return the number of bytes read.
520|1432 1 448397323 1 1|PREP: Read IOV_MAX system configuration
520|1432 1 448397323 1 2|PREP: Allocate and initialize I/O buffers
520|1432 1 103153680 1 1|PREP: Open and initialize the terminal files
520|1432 1 103153680 1 2|ERROR: tty_prep: open call failed, errno = 139(EPERM
520|1432 1 103153680 1 3|ERROR: Termios_prep failed
520|1432 1 448397323 2 1|CLEANUP: Free iovec buffers
220|1432 1 2 00:57:41|UNRESOLVED
410|1432 22 1 00:57:41|IC End
80|1433 0 00:57:41|TC End
------------------------------------------------------------------------
10|1231 /tset/CAPIbase/fpoll/fpoll25 00:51:23|TC Start, scenario ref 111
15|1230 1.10 1|TCM Start
400|1230 25 1 00:51:24|IC Start
200|1230 1 00:51:24|TP Start
520|1230 1 89980944 1 1|SPEC1170TESTSUITE CASE 25
520|1230 1 89980944 1 2|If the implementation supports a communications
520|1230 1 89980944 1 3|and a socket type:
520|1230 1 89980944 1 4|A call to int poll(struct pollfd fds[], nfds_t n
520|1230 1 89980944 1 5|int timeout) shall support regular files, termin
520|1230 1 89980944 1 6|and pseudo-terminal devices, STREAMS-based files
520|1230 1 89980944 1 7|sockets, FIFOS and pipes.
520|1230 1 433586187 1 1|TEST: AF_INET SOCK_STREAM
520|1230 1 433586187 1 2|PREP: Create test sockaddr_in: address = 198.15
520|1230 1 433586187 2 1|PREP: Wait for server to be ready
520|1230 1 433586187 2 2|PREP: Create a socket
520|1230 1 433586187 2 3|PREP: Connect socket to address 198.151.241.50,
520|1230 1 433586187 2 4|PREP: Send test data
520|1230 1 433586187 2 5|TEST: poll AF_INET socket for POLLIN
520|1230 1 433586187 2 6|CLEANUP: Close socket, kill server
520|1230 1 433586187 2 7|TEST: AF_UNIX SOCK_STREAM
520|1230 1 433586187 2 8|PREP: Create test sockaddr_un: path = ../tmp/un
520|1230 1 62455825 1 1|PREP: Server: create socket
520|1230 1 62455825 1 2|PREP: Server: bind address 198.151.241.50, port
520|1230 1 62455825 1 3|PREP: Server: listen on socket
520|1230 1 62455825 1 4|PREP: Server: notify client server is ready
520|1230 1 62455825 1 5|PREP: Server: accept connection
520|1230 1 62455825 1 6|INFO: Server: accepted connection from address 1
520|1230 1 62455825 1 7|PREP: echo_server: read and echo data
520|1230 1 62455825 1 8|INFO: echo_server: echoed 11 bytes of data (ABC1
520|1230 1 62455825 1 9|INFO: echo_server: recv returned -1, errno = 112
520|1230 1 62455825 1 10|INFO: Server received signal 15
520|1230 1 62455825 1 11|INFO: Server terminated
520|1230 1 433586187 3 1|PREP: Wait for server to be ready
520|1230 1 433586187 4 2|PREP: Create a socket
520|1230 1 433586187 4 3|PREP: Connect socket to address 198.151.241.50,
520|1230 1 433586187 4 4|PREP: Send test data
520|1230 1 433586187 4 5|TEST: poll AF_INET socket for POLLIN
520|1230 1 433586187 4 6|CLEANUP: Close socket, kill server
520|1230 1 433586187 4 7|TEST: AF_UNIX SOCK_DGRAM
520|1230 1 433586187 4 8|PREP: Create test sockaddr_un: path = ../tmp/un
520|1230 1 62586897 1 1|PREP: Server: create socket
520|1230 1 62586897 1 2|PREP: Server: bind address 198.151.241.50, port
520|1230 1 62586897 1 3|PREP: Server: notify client server is ready
520|1230 1 62586897 1 4|PREP: Server: read and echo data
520|1230 1 62586897 1 5|INFO: Server: echoed 11 bytes of data (ABC123TES
520|1230 1 62586897 1 6|INFO: Server received signal 15
520|1230 1 62586897 1 7|INFO: Server terminated
520|1230 1 433586187 5 1|PREP: Wait for server to be ready
520|1230 1 433586187 5 2|PREP: Create a socket
520|1230 1 433586187 5 3|PREP: Connect to address ../tmp/unix.dheBxQ
520|1230 1 433586187 5 4|PREP: Send test data
520|1230 1 433586187 5 5|TEST: poll AF_UNIX socket for POLLIN
520|1230 1 433586187 5 6|ERROR: poll returned 0 (call timed out)
520|1230 1 433586187 5 7|PREP: Create pipe
520|1230 1 433586187 5 8|PREP: Write data to one end of pipe
520|1230 1 433586187 5 9|TEST: poll other end of pipe for POLLIN
520|1230 1 433586187 5 10|CLEANUP: Close pipe
520|1230 1 433586187 5 11|PREP: Create fifo
520|1230 1 433586187 5 12|PREP: Write data to one end of FIFO
520|1230 1 433586187 5 13|TEST: poll other end of FIFO for POLLIN
520|1230 1 433586187 5 14|CLEANUP: Remove fifo
520|1230 1 433586187 5 15|PREP: Open tty (VSU_TERMIOS_TTY)
520|1230 1 433586187 5 16|ERROR: open failed, errno = 139(EPERM - Not ow
520|1230 1 433586187 5 17|PREP: Open pseudo ttys
520|1230 1 433586187 5 18|PREP: Write data to one end of pseudo-tty
520|1230 1 433586187 5 19|TEST: poll pseudo-tty for POLLIN
520|1230 1 433586187 5 20|CLEANUP: Close pseudo terminal
520|1230 1 433586187 5 21|PREP: Obtain file descriptor for regular file
520|1230 1 433586187 5 22|TEST: Regular file polls TRUE for reading
520|1230 1 433586187 5 23|CLEANUP: Close file
520|1230 1 433586187 5 24|PREP: Create a streams
520|1230 1 433586187 5 25|PREP: Create a pipe
520|1230 1 433586187 5 26|PREP: Determine if pipe is a stream
520|1230 1 433586187 5 27|INFO: Pipes are not STREAMs on this implementa
520|1230 1 433586187 5 28|PREP: Open master pseudo tty
520|1230 1 433586187 5 29|PREP: Determine if pseudo tty is a stream
520|1230 1 433586187 5 30|ERROR: Neither pipes nor pseudo terminals are
520|1230 1 433586187 5 31| based on this implementation. The samp
520|1230 1 433586187 5 32| in $TET_ROOT/CAPI/SRC/LIB/capi_user/sre
520|1230 1 433586187 5 33| must be modified to provide routines wi
520|1230 1 433586187 5 34| equivalent functionality and interfaces
520|1230 1 433586187 5 35| implementation.
520|1230 1 62652433 1 1|PREP: Server: create socket
520|1230 1 62652433 1 2|PREP: Server: bind address ../tmp/unix.dheBxQ to
520|1230 1 62652433 1 3|PREP: Server: notify client server is ready
520|1230 1 62652433 1 4|PREP: Server: read and echo data
520|1230 1 62652433 1 5|INFO: Server: echoed 11 bytes of data (ABC123TES
520|1230 1 62652433 1 6|INFO: Server received signal 15
520|1230 1 62652433 1 7|INFO: Server terminated
220|1230 1 1 00:51:37|FAIL
410|1230 25 1 00:51:37|IC End
80|1231 0 00:51:37|TC EndReview Information
Review Type TSMA Review Start Date null Completed null Status Complete Review Recommendation No Resolution Given Review Response
We recommend this request be refused.
Our opinion differs.
We believe the test is correct.
Section 5.1.4 Terminal Devices, in the Users' Guide describes the
requirements for VSU_TERMIOS_LOOP and VSU_TERMIOS_TTY. In all cases,
VSU_TERMIOS_TTY and VSU_TERMIOS_LOOP are required to be physical
ports, not pseudo-terminals.
The use of pseudo-terminals in section 5.1.4 refers to their usage in
the Curses and XCurses tests, and whether or not a loop-back terminal
cable is necessary or not.
In any case, while a loop-back cable is not required and data transfer
is not required, the terminal ports must still retain the proper
behavior for a termios-based tty.
The Appendix B description of VSU_TERMIOS_TTY states:
The user running the test suite must have read and write
permission for this device.
In this case, the EPERM error implies the user does not have the
proper permissions to access the physical device.
The IR description above also describes the use of VSU_TERMIOS_TTY as
the slave side of the master-slave pty pair referring to tcgetsid tp1,
tp2. The tcgetsid tp1, tp2 tests properly use VSU_MASTER_PTY in those
cases. There was an error in Appendix B of the Users' Guide that
improperly referred to tcgetsid tp1, tp2 in the VSU_TERMIOS_TTY
section. The tcgetsid tests should have been listed in the
VSU_MASTER_PTY section.
Review Type SA Review Start Date null Completed null Status Complete Review Resolution No Resolution Given Review Conclusion
After further discussion with the consultant we understand
that this is a test suite configuration issue rather than
a conformance issue. Thus there is insufficient grounds
to grant an interpretation from the information provided
and the request is therefore refused.
Review Type SA Review Start Date null Completed null Status Complete Review Resolution Rejected (REJ) Review Conclusion
This request is refused.
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