Add readfileat() to lib
diff --git a/lib/lib.c b/lib/lib.c
index 0f2b012..9664bec 100644
--- a/lib/lib.c
+++ b/lib/lib.c
@@ -362,14 +362,12 @@
// Read contents of file as a single nul-terminated string.
// malloc new one if buf=len=0
-char *readfile(char *name, char *ibuf, off_t len)
+char *readfileat(int dirfd, char *name, char *ibuf, off_t len)
{
int fd;
char *buf;
- fd = open(name, O_RDONLY);
- if (fd == -1) return 0;
-
+ if (-1 == (fd = openat(dirfd, name, O_RDONLY))) return 0;
if (len<1) {
len = fdlength(fd);
// proc files don't report a length, so try 1 page minimum.
@@ -388,6 +386,11 @@
return buf;
}
+char *readfile(char *name, char *ibuf, off_t len)
+{
+ return readfileat(AT_FDCWD, name, ibuf, len);
+}
+
// Sleep for this many thousandths of a second
void msleep(long miliseconds)
{