pkg: clean up writing of dependencies

1 files changed, 10 insertions, 0 deletions

diff --git a/src/io.c b/src/io.c
index 81ed289..e0a9c9b 100644
--- a/src/io.c
+++ b/src/io.c
@@ -492,3 +492,13 @@ struct apk_ostream *apk_ostream_to_file(const char *file, mode_t mode)
 	return apk_ostream_to_fd(fd);
 }
 
+size_t apk_ostream_write_string(struct apk_ostream *os, const char *string)
+{
+	size_t len;
+
+	len = strlen(string);
+	if (os->write(os, string, len) != len)
+		return -1;
+
+	return len;
+}