X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Finternal%2Ffloatscan.c;h=f6e331d45d52d95f0b6ea8358658da9c6b29d595;hb=b427c822655156f17d17cd00110ff5bc22299a38;hp=68f576c9eca34403e78dfbdd42da7a143537599d;hpb=f457b1cb0d49f1b47bc7baf4bb516f1860816f03;p=musl

diff --git a/src/internal/floatscan.c b/src/internal/floatscan.c
index 68f576c9..f6e331d4 100644
--- a/src/internal/floatscan.c
+++ b/src/internal/floatscan.c
@@ -4,6 +4,7 @@
 #include <float.h>
 #include <limits.h>
 #include <errno.h>
+#include <ctype.h>
 
 #include "shgetc.h"
 #include "floatscan.h"
@@ -199,11 +200,11 @@ static long double decfloat(FILE *f, int c, int bits, int emin, int sign, int po
 		}
 		if (carry) {
 			rp += 9;
+			a = (a-1 & MASK);
 			if (a == z) {
 				z = (z-1 & MASK);
 				x[z-1 & MASK] |= x[z];
 			}
-			a = (a-1 & MASK);
 			x[a] = carry;
 		}
 	}
@@ -414,7 +415,7 @@ static long double hexfloat(FILE *f, int bits, int emin, int sign, int pok)
 long double __floatscan(FILE *f, int prec, int pok)
 {
 	int sign = 1;
-	int i;
+	size_t i;
 	int bits;
 	int emin;
 	int c;
@@ -455,6 +456,24 @@ long double __floatscan(FILE *f, int prec, int pok)
 	if (!i) for (i=0; i<3 && (c|32)=="nan"[i]; i++)
 		if (i<2) c = shgetc(f);
 	if (i==3) {
+		if (shgetc(f) != '(') {
+			shunget(f);
+			return NAN;
+		}
+		for (i=1; ; i++) {
+			c = shgetc(f);
+			if (c-'0'<10U || c-'A'<26U || c-'a'<26U || c=='_')
+				continue;
+			if (c==')') return NAN;
+			shunget(f);
+			if (!pok) {
+				errno = EINVAL;
+				shlim(f, 0);
+				return 0;
+			}
+			while (i--) shunget(f);
+			return NAN;
+		}
 		return NAN;
 	}