[LTP] [PATCH] pipe01 should only check the data actually received from the pipe

[Chris Dearman <chris@mips.com>]

The pipe write does not include the string terminator and the way the
test is written it's valid for the writer to send less than the
requested amount and for the reader to read less than the number of
written bytes, so just compare the actual bytes received.

Signed-off-by: Chris Dearman <chris@mips.com>
---
  testcases/kernel/syscalls/pipe/pipe01.c |    4 ++--
  1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/testcases/kernel/syscalls/pipe/pipe01.c 
b/testcases/kernel/syscalls/pipe/pipe01.c
index 08cf612..04d1b11 100644
--- a/testcases/kernel/syscalls/pipe/pipe01.c
+++ b/testcases/kernel/syscalls/pipe/pipe01.c
@@ -119,7 +119,7 @@ int main(int ac, char **av)
  			}
   			/* are the strings written and read equal */
-			if ((greater = strcmp(rebuf, wrbuf)) != 0) {
+			if ((greater = strncmp(rebuf, wrbuf, red)) != 0) {
  				tst_resm(TFAIL, "Condition #3 test failed");
  				continue;
  			}
@@ -155,4 +155,4 @@ void cleanup()
  	 * print errno log if that option was specified.
  	 */
  	TEST_CLEANUP;
-}
\ No newline at end of file
+}
-- 
1.7.1


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