First commit

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 53 insertions, 0 deletions

diff --git a/libexec_recv_document.c b/libexec_recv_document.c
new file mode 100644
index 0000000..8eb0be6
--- /dev/null
+++ b/libexec_recv_document.c
@@ -0,0 +1,53 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+#ifndef TEST
+
+
+int
+libexec_recv_document(struct libexec_document *doc)
+{
+	ssize_t r;
+	void *new;
+	size_t new_size;
+
+	if (!doc) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	for (;;) {
+		if (doc->length == doc->alloc_size) {
+			new_size = doc->alloc_size + 8096;
+			new = realloc(doc->text, new_size);
+			if (!new)
+				return -1;
+			doc->text = new;
+			doc->alloc_size = new_size;
+		}
+		r = read(doc->fd, &doc->text[doc->length], doc->alloc_size - doc->length);
+		if (r <= 0) {
+			if (!r)
+				goto done;
+			return -1;
+		}
+		doc->length += (size_t)r;
+	}
+	return 0;
+
+done:
+	if (doc->length == doc->alloc_size) {
+		new_size = doc->alloc_size + 1;
+		new = realloc(doc->text, new_size);
+		if (!new)
+			return -1;
+		doc->text = new;
+		doc->alloc_size = new_size;
+	}
+	doc->text[doc->length] = '\0';
+	return 1;
+}
+
+
+#else
+LIBEXEC_CONST__ int main(void) {return 0;} /* TODO test */
+#endif