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#include <fcntl.h>
#include <unistd.h>
#include "zdtmtst.h"
int write_value(const char *path, const char *value)
{
int fd, l;
fd = open(path, O_WRONLY);
if (fd < 0) {
pr_perror("open %s", path);
return -1;
}
l = write(fd, value, strlen(value));
if (l < 0) {
pr_perror("failed to write %s to %s", value, path);
close(fd);
return -1;
}
close(fd);
return 0;
}
int read_value(const char *path, char *value, int size)
{
int fd, ret;
fd = open(path, O_RDONLY);
if (fd < 0) {
pr_perror("open %s", path);
return -1;
}
ret = read(fd, (void *)value, size);
if (ret < 0) {
pr_perror("read %s", path);
close(fd);
return -1;
}
value[ret] = '\0';
close(fd);
return 0;
}
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