Commit d974f67a authored by Jeremy Kerr's avatar Jeremy Kerr Committed by Linus Torvalds
Browse files

selftests/efivarfs: add create-read test



Test that reads from a newly-created efivarfs file (with no data written)
will return EOF.
Signed-off-by: default avatarJeremy Kerr <jk@ozlabs.org>
Cc: Matt Fleming <matt.fleming@intel.com>
Cc: Lingzhu Xiang <lxiang@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 033a1a7f
CC = $(CROSS_COMPILE)gcc
CFLAGS = -Wall
test_objs = open-unlink
test_objs = open-unlink create-read
all: $(test_objs)
......
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
int main(int argc, char **argv)
{
const char *path;
char buf[4];
int fd, rc;
if (argc < 2) {
fprintf(stderr, "usage: %s <path>\n", argv[0]);
return EXIT_FAILURE;
}
path = argv[1];
/* create a test variable */
fd = open(path, O_RDWR | O_CREAT, 0600);
if (fd < 0) {
perror("open(O_WRONLY)");
return EXIT_FAILURE;
}
rc = read(fd, buf, sizeof(buf));
if (rc != 0) {
fprintf(stderr, "Reading a new var should return EOF\n");
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
......@@ -70,6 +70,12 @@ test_create_empty()
fi
}
test_create_read()
{
local file=$efivarfs_mount/$FUNCNAME-$test_guid
./create-read $file
}
test_delete()
{
local attrs='\x07\x00\x00\x00'
......@@ -125,6 +131,7 @@ rc=0
run_test test_create
run_test test_create_empty
run_test test_create_read
run_test test_delete
run_test test_zero_size_delete
run_test test_open_unlink
......
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