From: Michael Tremer <michael.tremer@ipfire.org>
Date: Fri, 16 Apr 2021 13:55:32 +0000 (+0000)
Subject: config: Add function that lists all sections
X-Git-Tag: 0.9.28~1285^2~350
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4715e3fc44c058a187838e250fbc11ff36d19897;p=pakfire.git

config: Add function that lists all sections

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/src/libpakfire/config.c b/src/libpakfire/config.c
index 13dc13fc1..65aa5fb84 100644
--- a/src/libpakfire/config.c
+++ b/src/libpakfire/config.c
@@ -206,6 +206,44 @@ int pakfire_config_get_bool(struct pakfire_config* config,
 	return _default;
 }
 
+static int pakfire_section_in_sections(char** sections, const char* section) {
+	if (!sections)
+		return 0;
+
+	for (char** s = sections; *s; s++) {
+		if (strcmp(section, *s) == 0)
+			return 1;
+	}
+
+	return 0;
+}
+
+char** pakfire_config_sections(struct pakfire_config* config) {
+	struct pakfire_config_entry* entry;
+
+	char** sections = NULL;
+	size_t num_sections = 0;
+
+	STAILQ_FOREACH(entry, &config->entries, nodes) {
+		// Skip empty sections
+		if (!*entry->section)
+			continue;
+
+		// Skip if this section is already on the list
+		if (pakfire_section_in_sections(sections, entry->section))
+			continue;
+
+		// Make space in the array
+		sections = reallocarray(sections, sizeof(*sections), num_sections++ + 1);
+		if (!sections)
+			return NULL;
+
+		sections[num_sections - 1] = strdup(entry->section);
+	}
+
+	return sections;
+}
+
 static ssize_t strip(char* s) {
 	if (!s)
 		return 0;
diff --git a/src/libpakfire/include/pakfire/config.h b/src/libpakfire/include/pakfire/config.h
index 31fc5666b..0dca2b6e2 100644
--- a/src/libpakfire/include/pakfire/config.h
+++ b/src/libpakfire/include/pakfire/config.h
@@ -40,6 +40,8 @@ long int pakfire_config_get_int(struct pakfire_config* config,
 int pakfire_config_get_bool(struct pakfire_config* config,
 	const char* section, const char* key, int _default);
 
+char** pakfire_config_sections(struct pakfire_config* config);
+
 int pakfire_config_read(struct pakfire_config* config, FILE* f);
 
 #endif
diff --git a/tests/libpakfire/config.c b/tests/libpakfire/config.c
index 235297549..30757b4c7 100644
--- a/tests/libpakfire/config.c
+++ b/tests/libpakfire/config.c
@@ -91,6 +91,22 @@ static int test_parse(const struct test* t) {
 	ASSERT_STRING_EQUALS(pakfire_config_get(config, "section2", "key1", NULL), "value1");
 	ASSERT_STRING_EQUALS(pakfire_config_get(config, "section2", "key2", NULL), "value2");
 
+	// Get sections
+	char** sections = pakfire_config_sections(config);
+	ASSERT(sections);
+
+	// Count sections
+	size_t counter = 0;
+	for (char** section = sections; *section; section++)
+		counter++;
+
+	ASSERT(counter == 2);
+
+	// Check for section names
+	ASSERT_STRING_EQUALS(sections[0], "section1");
+	ASSERT_STRING_EQUALS(sections[1], "section2");
+	ASSERT_NULL(sections[2]);
+
 	pakfire_config_free(config);
 
 	fclose(f);