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ring: add missing fread return code check
[project/udebug.git]
/
ring.c
diff --git
a/ring.c
b/ring.c
index ba75ac56849ad8d3776f7f15e3d1f40cfb559216..8a7e27fc7eb5c6b7d3abbfb545ddd20be878c494 100644
(file)
--- a/
ring.c
+++ b/
ring.c
@@
-22,7
+22,8
@@
static uint32_t gen_ring_id(void)
if (!urandom && (urandom = fopen("/dev/urandom", "r")) == NULL)
return 0;
- fread(&val, sizeof(val), 1, urandom);
+ if (fread(&val, sizeof(val), 1, urandom) != 1)
+ return 0;
return val;
}