X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fstdlib%2Fatol.c;h=140ea3ea3fa27ce690bd61d8a7520efa28e3aad1;hb=90f770523f54b2e63a6ad46cba0149c9dc01ddd4;hp=9c91bba9d915dbe1760918f7af76ab548b324717;hpb=0b44a0315b47dd8eced9f3b7f31580cf14bbfc01;p=musl

diff --git a/src/stdlib/atol.c b/src/stdlib/atol.c
index 9c91bba9..140ea3ea 100644
--- a/src/stdlib/atol.c
+++ b/src/stdlib/atol.c
@@ -10,7 +10,8 @@ long atol(const char *s)
 	case '-': neg=1;
 	case '+': s++;
 	}
+	/* Compute n as a negative number to avoid overflow on LONG_MIN */
 	while (isdigit(*s))
-		n = 10*n + *s++ - '0';
-	return neg ? -n : n;
+		n = 10*n - (*s++ - '0');
+	return neg ? n : -n;
 }