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lib: strto: fix metric suffix parsing in strtoul[l]

While 1kB or 1kiB will be parsed correctly, 1k will return the right
amount, but the metric suffix will not be escaped once the char
pointer updated. Fix this situation by simplifying the move of the
endp pointer.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Miquel Raynal 5 vuotta sitten
vanhempi
commit
b87b0d8d79
1 muutettua tiedostoa jossa 10 lisäystä ja 12 poistoa
  1. 10 12
      lib/strto.c

+ 10 - 12
lib/strto.c

@@ -94,12 +94,11 @@ unsigned long ustrtoul(const char *cp, char **endp, unsigned int base)
 		/* fall through */
 	case 'k':
 		result *= 1024;
-		if ((*endp)[1] == 'i') {
-			if ((*endp)[2] == 'B')
-				(*endp) += 3;
-			else
-				(*endp) += 2;
-		}
+		(*endp)++;
+		if (**endp == 'i')
+			(*endp)++;
+		if (**endp == 'B')
+			(*endp)++;
 	}
 	return result;
 }
@@ -116,12 +115,11 @@ unsigned long long ustrtoull(const char *cp, char **endp, unsigned int base)
 		/* fall through */
 	case 'k':
 		result *= 1024;
-		if ((*endp)[1] == 'i') {
-			if ((*endp)[2] == 'B')
-				(*endp) += 3;
-			else
-				(*endp) += 2;
-		}
+		(*endp)++;
+		if (**endp == 'i')
+			(*endp)++;
+		if (**endp == 'B')
+			(*endp)++;
 	}
 	return result;
 }