Initial commit

1 files changed, 46 insertions, 0 deletions

diff --git a/ext_internal.c b/ext_internal.c
new file mode 100644
index 0000000..3199eb7
--- /dev/null
+++ b/ext_internal.c
@@ -0,0 +1,46 @@
+//
+// Created by jhunk on 7/2/24.
+//
+#include "ext_internal.h"
+#include "extensions/ext.h"
+
+void asdfapi_ext_show_descriptor(struct ASDFExtension *info) {
+    printf("Extension name: %s\n", info->name);
+    printf("Extension description: %s\n", info->desc);
+}
+
+void *asdfapi_ext_load(struct ASDFExtension **info, const char *filename) {
+    fnptr_ext_init ext_init;
+
+    printf("Loading extension: %s\n", filename);
+    void *handle_ext = dlopen(filename, RTLD_LAZY);
+    if (handle_ext) {
+        dlerror();
+        ext_init = dlsym(handle_ext, "asdfapi_ext_init");
+        if (ext_init) {
+            (*ext_init)();
+            dlerror();
+            *info = dlsym(handle_ext, "asdfapi_ext_descriptor");
+            if (!*info) {
+                fprintf(stderr, "error reading extension descriptor: %s\n", dlerror());
+                goto fail;
+            }
+        } else {
+            fprintf(stderr, "error reading extension function: %s\n", dlerror());
+            goto fail;
+        }
+    } else {
+        fprintf(stderr, "error opening extension: %s\n", dlerror());
+        goto fail;
+    }
+    return handle_ext;
+    fail:
+    return NULL;
+}
+
+void *asdfapi_ext_call(void *handle, const char *sym) {
+    const char *prefix = "asdfapi_ext_";
+    char name[255] = {0};
+    snprintf(name, sizeof(name) - 1, "%s%s", prefix, sym);
+    return dlsym(handle, name);
+}