1 files changed, 68 insertions, 0 deletions
diff --git a/print_error.c b/print_error.c
new file mode 100644
index 0000000..4675bab
--- /dev/null
+++ b/print_error.c
@@ -0,0 +1,68 @@
+/* See LICENSE file for copyright and license details. */
+#include "internal.h"
+
+
+static void
+print_error_description(struct liberror_error *error, FILE *fp, const char *prefix)
+{
+	if (*error->description) {
+		if (*error->source)
+			fprintf(fp, "%sError in function %s: %s\n", prefix, error->source, error->description);
+		else
+			fprintf(fp, "%sError: %s\n", prefix, error->description);
+	} else if (*error->source) {
+		fprintf(fp, "%sError in function %s: %s error %lli\n", prefix, error->source, error->code_group, error->code);
+	} else {
+		fprintf(fp, "%sError: %s error %lli\n", prefix, error->code_group, error->code);
+	}
+}
+
+
+void
+liberror_print_error(struct liberror_error *error, FILE *fp, int reset, const char *prefix_)
+{
+	struct liberror_error *err = error;
+	char *prefix = (char []){"    "};
+	char *p, *q;
+
+	if (!err) {
+		err = liberror_get_error();
+		if (!err)
+			return;
+	}
+
+	if (prefix_ && *prefix_) {
+		prefix = alloca(strlen(prefix) + sizeof(":     "));
+		stpcpy(q = stpcpy(p = stpcpy(stpcpy(prefix, prefix_), ": "), "  "), "  ");
+	} else {
+		p = &prefix[0];
+		q = &prefix[2];
+	}
+
+	if (!fp)
+		fp = stderr;
+
+	*p = *q = '\0';
+	print_error_description(err, fp, prefix);
+
+	*p = ' ';
+	liberror_print_backtrace(err, fp, prefix);
+
+	while ((err = err->cause)) {
+		*p = *q = '\0';
+		fprintf(fp, "%sCaused by:\n", prefix);
+
+		*p = ' ';
+		print_error_description(err, fp, prefix);
+		
+		*q = ' ';
+		liberror_print_backtrace(err, fp, prefix);
+	}
+
+	if (reset) {
+		if (error)
+			liberror_free_error(error);
+		else
+			liberror_reset_error();
+	}
+}