Files
android/tools/testing/selftests/efivarfs/create-read.c
T
threeeye bc1d038eac REVVL 6 Pro kernel bring-up: full working tree snapshot (2026-09-12)
Squashed backup commit (no shallow-clone history issues) of
xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream
commit 9eece662e) plus all fixes applied to get everpal_defconfig building
clean against a modern (GCC 15.2.0) toolchain -- see the previous commit
message on the lineage-23.2 branch (also in this repo history is not
available here since this is a squashed snapshot; full incremental history
lives in the local DL380 checkout and the upstream GitHub remote).

Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
2026-09-12 13:36:46 +00:00

42 lines
740 B
C

// SPDX-License-Identifier: GPL-2.0
#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");
close(fd);
return EXIT_FAILURE;
}
close(fd);
return EXIT_SUCCESS;
}