1 files changed, 34 insertions, 0 deletions
diff --git a/scripts/bareboximd.c b/scripts/bareboximd.c
index a734399aa5..2d4750d7fb 100644
--- a/scripts/bareboximd.c
+++ b/scripts/bareboximd.c
@@ -55,6 +55,40 @@ static unsigned long simple_strtoul(const char *cp, char **endp, unsigned int ba
 	return strtoul(cp, endp, base);
 }
 
+static int imd_read_file(const char *filename, size_t *size, void **outbuf)
+{
+	void *buf;
+	int fd, ret;
+	size_t fsize;
+
+	fd = open(filename, O_RDONLY);
+	if (fd < 0) {
+		fprintf(stderr, "Cannot open %s: %s\n", filename, strerror(errno));
+		return -errno;
+	}
+
+	fsize = lseek(fd, 0, SEEK_END);
+	if (fsize == -1) {
+		fprintf(stderr, "Cannot get size %s: %s\n", filename, strerror(errno));
+		ret = -errno;
+		goto close;
+	}
+
+	buf = mmap(NULL, fsize, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
+	if (buf == MAP_FAILED) {
+		close(fd);
+		return read_file_2(filename, size, outbuf, 0x100000);
+	}
+
+	*outbuf = buf;
+	*size = fsize;
+
+	return 0;
+close:
+	close(fd);
+	return ret;
+}
+
 #include "../include/xfuncs.h"
 #include "../crypto/crc32.c"
 #include "../common/imd.c"