First commit

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

1 files changed, 65 insertions, 0 deletions

diff --git a/libcontacts_load_contact.c b/libcontacts_load_contact.c
new file mode 100644
index 0000000..2d6f933
--- /dev/null
+++ b/libcontacts_load_contact.c
@@ -0,0 +1,65 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+int
+libcontacts_load_contact(const char *id, struct libcontacts_contact *contact, const struct passwd *user)
+{
+	int ret, fd, saved_errno;
+	char *data = NULL, *path;
+	size_t p = 0, n = 0;
+	ssize_t r;
+	void *new;
+
+	if (!contact) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	path = libcontacts_get_path(id, user);
+	if (!path)
+		return -1;
+	fd = open(path, O_RDONLY);
+	free(path);
+	if (fd < 0)
+		return -1;
+
+	for (;;) {
+		if (p == n) {
+			new = realloc(data, n + (8 << 10) + 1);
+			if (!new)
+				goto fail;
+			n += 8 << 10;
+		}
+		r = read(fd, &data[p], n - p);
+		if (r <= 0) {
+			if (r)
+				goto fail;
+			break;
+		}
+		p += (size_t)r;
+	}
+	data[p] = '\0';
+
+	if (memchr(data, 0, p)) {
+		errno = 0;
+		goto fail;
+	}
+
+	close(fd);
+	ret = libcontacts_parse_contact(data, contact);
+	free(data);
+	if (!ret && !(contact->id = strdup(id))) {
+		libcontacts_contact_destroy(contact);
+		memset(contact, 0, sizeof(*contact));
+		return -1;
+	}
+	return ret;
+
+fail:
+	saved_errno = errno;
+	free(data);
+	close(fd);
+	errno = saved_errno;
+	return -1;
+}