strdup -> xstrdup

sed: de-obfuscate piece of code

editors/sed.c

@@ -175,12 +175,13 @@ static void parse_escapes(char *dest, char *string, int len, char from, char to)
 	while (i < len) {
 		if (string[i] == '\\') {
 			if (!to || string[i+1] == from) {
-				*(dest++) = to ? to : string[i+1];
+				*dest++ = to ? to : string[i+1];
 				i += 2;
 				continue;
-			} else *(dest++) = string[i++];
+			}
+			*dest++ = string[i++];
 		}
-		*(dest++) = string[i++];
+		*dest++ = string[i++];
 	}
 	*dest = 0;
 }

libbb/loop.c

@@ -142,7 +142,7 @@ try_again:
 	}
 	close(ffd);
 	if (!rc) {
-		if (!*device) *device = strdup(dev);
+		if (!*device) *device = xstrdup(dev);
 		return mode==O_RDONLY ? 1 : 0;
 	}
 	return rc;

networking/udhcp/files.c

@@ -56,7 +56,7 @@ static int read_str(const char *line, void *arg)
 	char **dest = arg;
 
 	free(*dest);
-	*dest = strdup(line);
+	*dest = xstrdup(line);
 
 	return 1;
 }