pkg_external_libs_version: new function

Make libpkg expose itself its external libraries so the frontend
does not have to know about them

external/libcurl/Makefile.autosetup

@@ -11,6 +11,7 @@ VPATH+=	$(top_srcdir)/external/curl/lib/vauth
 VPATH+=	$(top_srcdir)/external/curl/lib/vquic
 
 SRCS=	\
+	version.c \
 	asyn-thread.c \
 	base64.c \
 	bufref.c \

libpkg/pkg.h.in

@@ -136,6 +136,8 @@ struct pkg_kv {
 	char *value;
 };
 
+typedef pkgvec_t(struct pkg_kv *) pkg_kvl_t;
+
 /**
  * The system-wide pkg(8) status: ie. is it a) installed or otherwise
  * available on the sysem, b) database (local.sqlite) initialised and
@@ -1734,6 +1736,7 @@ struct pkg_kv *pkg_kvlist_next(struct pkg_kvlist_iterator *it);
 struct pkg_stringlist_iterator *pkg_stringlist_iterator(struct pkg_stringlist *l);
 const char *pkg_stringlist_next(struct pkg_stringlist_iterator *it);
 struct pkg_el *pkg_get_element(struct pkg *p, pkg_attr a);
+pkg_kvl_t *pkg_external_libs_version(void);
 
 static inline void
 pkg_get_s(struct pkg *p, pkg_attr a, const char **val)

libpkg/pkg_config.c

@@ -42,6 +42,12 @@
 #endif
 #include <ucl.h>
 
+#include <curl/curl.h>
+
+#include <archive.h>
+#include <sqlite3.h>
+#include <openssl/crypto.h>
+
 #include "pkg.h"
 #include "private/pkg.h"
 #include "private/event.h"
@@ -599,6 +605,20 @@ pkg_libversion(void)
 	return PKGVERSION;
 }
 
+pkg_kvl_t *
+pkg_external_libs_version(void)
+{
+	pkg_kvl_t *kvl = xcalloc(1, sizeof(*kvl));
+
+	pkgvec_push(kvl, pkg_kv_new("libcurl", curl_version()));
+	pkgvec_push(kvl, pkg_kv_new("libarchive", archive_version_string()));
+	pkgvec_push(kvl, pkg_kv_new("sqlite", sqlite3_libversion()));
+	pkgvec_push(kvl, pkg_kv_new("openssl", OpenSSL_version(OPENSSL_VERSION)));
+
+	return (kvl);
+}
+
+
 int
 pkg_initialized(void)
 {

src/main.c

@@ -58,11 +58,6 @@
 #include <pkg.h>
 #include <tllist.h>
 #include <xmalloc.h>
-#include <curl/curl.h>
-
-#include <archive.h>
-#include <sqlite3.h>
-#include <openssl/crypto.h>
 
 #include "pkgcli.h"
 
@@ -371,6 +366,8 @@ static void
 show_version_info(int version)
 {
 	char *config;
+	pkg_kvl_t *lib;
+
 	if (version > 1)
 		printf("%-24s: ", "Version");
 
@@ -380,10 +377,10 @@ show_version_info(int version)
 		exit(EXIT_SUCCESS);
 
 	printf("%-24s: %s\n", "libpkg", pkg_libversion());
-	printf("%-24s: %s\n", "libcurl", curl_version());
-	printf("%-24s: %s\n", "libarchive", archive_version_string());
-	printf("%-24s: %s\n", "sqlite", sqlite3_libversion());
-	printf("%-24s: %s\n", "openssl", OpenSSL_version(OPENSSL_VERSION));
+
+	lib = pkg_external_lib_version();
+	for (size_t i = 0; i < lib->len; i++)
+		printf("%-24s: %s\n", lib->d[i]->key, lib->d[i]->value);
 
 	config = pkg_config_dump();
 	printf("%s\n", config);