libutil: add a string list helper to replace some of the adhoc ones

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

1 files changed, 38 insertions, 0 deletions

diff --git a/include/util/strlist.h b/include/util/strlist.h
new file mode 100644
index 0000000..ace4e20
--- /dev/null
+++ b/include/util/strlist.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: LGPL-3.0-or-later */
+/*
+ * strlist.h
+ *
+ * Copyright (C) 2023 David Oberhollenzer <goliath@infraroot.at>
+ */
+#ifndef UTIL_STRLIST_H
+#define UTIL_STRLIST_H
+
+#include "sqfs/predef.h"
+#include <string.h>
+
+typedef struct {
+	char **strings;
+	size_t count;
+	size_t capacity;
+} strlist_t;
+
+static SQFS_INLINE void strlist_init(strlist_t *list)
+{
+	memset(list, 0, sizeof(*list));
+}
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+SQFS_INTERNAL int strlist_init_copy(strlist_t *dst, const strlist_t *src);
+
+SQFS_INTERNAL void strlist_cleanup(strlist_t *list);
+
+SQFS_INTERNAL int strlist_append(strlist_t *list, const char *str);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* UTIL_STRLIST_H */