1 files changed, 24 insertions, 27 deletions

diff --git a/src/stlfile.c b/src/stlfile.c
index 5180ffc..953b5d7 100644
--- a/src/stlfile.c
+++ b/src/stlfile.c
@@ -134,7 +134,7 @@ parse_file_ascii(struct parseinfo *info, char *buf, size_t len)
 			stack_push(&states, STATE_SOLID);
 			if (stack_ind(&states, KW_SOLID_BEGIN) != -1) {
 				FMT_ERR("Multiple nested solids!\n");
-				goto format_error;
+				goto fail;
 			}
 			tmp = bp;
 			if (!consume_keyword(&bp)
@@ -148,14 +148,14 @@ parse_file_ascii(struct parseinfo *info, char *buf, size_t len)
 			if ((kw = stack_pop(&states)) != STATE_SOLID) {
 				FMT_ERR("Improper nesting, parent: %s\n",
 					kwmap[kw].str);
-				goto format_error;
+				goto fail;
 			}
 			tmp = bp;
 			if (info->solidname && !consume_keyword(&bp)
 					&& (arg = consume_arg(&bp, &end))) {
 				if (strncmp(info->solidname, arg, end - arg)) {
 					FMT_ERR("Solid names do not match!\n");
-					goto format_error;
+					goto fail;
 				}
 			} else {
 				bp = tmp;
@@ -165,14 +165,14 @@ parse_file_ascii(struct parseinfo *info, char *buf, size_t len)
 			stack_push(&states, STATE_LOOP);
 			if (stack_ind(&states, KW_LOOP_BEGIN) != -1) {
 				FMT_ERR("Multiple nested loops!\n");
-				goto format_error;
+				goto fail;
 			}
 			break;
 		case KW_LOOP_END:
 			if ((kw = stack_pop(&states)) != STATE_LOOP) {
 				FMT_ERR("Improper nesting, parent: %s\n",
 					kwmap[kw].str);
-				goto format_error;
+				goto fail;
 			}
 			info->loopcount++;
 			break;
@@ -180,17 +180,17 @@ parse_file_ascii(struct parseinfo *info, char *buf, size_t len)
 			stack_push(&states, STATE_FACET);
 			if (stack_ind(&states, KW_LOOP_BEGIN) != -1) {
 				FMT_ERR("Multiple nested facets!\n");
-				goto format_error;
+				goto fail;
 			}
 			for (i = 0; i < 3; i++) {
 				if (!(arg = consume_arg(&bp, &end))) {
 					FMT_ERR("Facet with < 3 args!\n");
-					goto format_error;
+					goto fail;
 				}
 				farg = strtof(arg, &tmp);
 				if (!isws(*tmp)) {
 					FMT_ERR("Facet arg '%s'\n", arg);
-					goto format_error;
+					goto fail;
 				}
 			}
 			break;
@@ -198,19 +198,19 @@ parse_file_ascii(struct parseinfo *info, char *buf, size_t len)
 			if ((kw = stack_pop(&states)) != STATE_FACET) {
 				FMT_ERR("Improper nesting, parent: %s\n",
 					kwmap[kw].str);
-				goto format_error;
+				goto fail;
 			}
 			break;
 		case KW_VERTEX:
 			for (i = 0; i < 3; i++) {
 				if (!(arg = consume_arg(&bp, &end))) {
 					FMT_ERR("Vertex with < 3 args\n");
-					goto format_error;
+					goto fail;
 				}
 				farg = strtof(arg, &tmp);
 				if (!isws(*tmp)) {
 					FMT_ERR("Vertex arg '%s'\n", arg);
-					goto format_error;
+					goto fail;
 				}
 				info->bbmin[i] = MIN(info->bbmin[i], farg);
 				info->bbmax[i] = MAX(info->bbmax[i], farg);
@@ -219,26 +219,26 @@ parse_file_ascii(struct parseinfo *info, char *buf, size_t len)
 		case KW_UNKNOWN:
 			prev = skipws(prev);
 			FMT_ERR("Expected keyword, got:\n%.*s...\n", 30, prev);
-			goto format_error;
+			goto fail;
 		}
 		prev = bp;
 	}
 
 	if (states.count) {
 		FMT_ERR("Expected keyword, got:\n%.*s...\n", 30, bp);
-		goto format_error;
+		goto fail;
 	}
 
 	bp = skipws(bp);
 	if (*bp) {
 		FMT_ERR("Extraneous data at end of file\n");
-		goto format_error;
+		goto fail;
 	}
 
 	stack_free(&states);
 	return OK;
 
-format_error:
+fail:
 	stack_free(&states);
 	return FAIL;
 }
@@ -305,7 +305,7 @@ parse_file_bin(struct parseinfo *info, char *buf, size_t len)
 	return OK;
 
 fail:
-	NFREE(info->solidname);
+	FREE(info->solidname);
 	return FAIL;
 }
 
@@ -316,7 +316,8 @@ parse_file(struct parseinfo *info, char *buf, size_t len)
 	const char *resp;
 	char *bp;
 
-	free_info(info);
+	if (info->valid)
+		free_info(info);
 
 	if (len < 10) {
 		ERR("File too small!\n");
@@ -332,8 +333,6 @@ parse_file(struct parseinfo *info, char *buf, size_t len)
 		: parse_file_bin(info, buf, len);
 	if (status == FAIL) return FAIL;
 
-	if (!info->solidname) info->solidname = checkp(strdup(""));
-
 	if (!info->modelname) {
 		resp = ask("Please enter your model name: ");
 		if (strlen(resp) < 4) {
@@ -343,6 +342,8 @@ parse_file(struct parseinfo *info, char *buf, size_t len)
 		info->modelname = checkp(strdup(resp));
 	}
 
+	if (!info->solidname) info->solidname = checkp(strdup(""));
+
 	info->hash = checkp(strdup(mhash(info->modelname, -1)));
 
 	return OK;
@@ -407,12 +408,9 @@ print_info(struct parseinfo *info)
 {
 	int i, k;
 
-#define FILTERCHAR(c) ((c) >= 32 ? (c) : ' ')
-
 	printf(" === Model info === \n");
 
 	printf("  File Size: %u\n", info->filesize);
-
 	if (info->type == TYPE_BIN) {
 		printf("  Header:\n");
 		for (i = 0; i < 80; i += k) {
@@ -421,11 +419,10 @@ print_info(struct parseinfo *info)
 				printf(" %02x", (uint8_t) info->header[i+k]);
 			printf(" | ");
 			for (k = 0; k < MIN(80 - i, 20); k++)
-				printf("%c", FILTERCHAR(info->header[i+k]));
+				putchar(PRINTABLE(info->header[i+k]));
 			printf("\n");
 		}
 	}
-
 	printf("  Model ID: %s\n", info->hash);
 	printf("  Model Name: %s\n", info->modelname);
 	printf("  Solid Name: %s\n", info->solidname);
@@ -443,9 +440,9 @@ print_info(struct parseinfo *info)
 void
 free_info(struct parseinfo *info)
 {
-	NFREE(info->hash);
-	NFREE(info->modelname);
-	NFREE(info->solidname);
+	FREE(info->hash);
+	FREE(info->modelname);
+	FREE(info->solidname);
 	info->valid = 0;
 }