1 files changed, 51 insertions, 0 deletions
diff --git a/vendor/github.com/msteinert/pam/transaction.c b/vendor/github.com/msteinert/pam/transaction.c
new file mode 100644
index 00000000..4ff649b1
--- /dev/null
+++ b/vendor/github.com/msteinert/pam/transaction.c
@@ -0,0 +1,51 @@
+#include "_cgo_export.h"
+#include <security/pam_appl.h>
+#include <string.h>
+
+int cb_pam_conv(
+	int num_msg,
+	const struct pam_message **msg,
+	struct pam_response **resp,
+	void *appdata_ptr)
+{
+	*resp = calloc(num_msg, sizeof **resp);
+	if (num_msg <= 0 || num_msg > PAM_MAX_NUM_MSG) {
+		return PAM_CONV_ERR;
+	}
+	if (!*resp) {
+		return PAM_BUF_ERR;
+	}
+	for (size_t i = 0; i < num_msg; ++i) {
+		struct cbPAMConv_return result = cbPAMConv(
+				msg[i]->msg_style,
+				(char *)msg[i]->msg,
+				appdata_ptr);
+		if (result.r1 != PAM_SUCCESS) {
+			goto error;
+		}
+		(*resp)[i].resp = result.r0;
+	}
+	return PAM_SUCCESS;
+error:
+	for (size_t i = 0; i < num_msg; ++i) {
+		if ((*resp)[i].resp) {
+			memset((*resp)[i].resp, 0, strlen((*resp)[i].resp));
+			free((*resp)[i].resp);
+		}
+	}
+	memset(*resp, 0, num_msg * sizeof *resp);
+	free(*resp);
+	*resp = NULL;
+	return PAM_CONV_ERR;
+}
+
+struct pam_conv *make_pam_conv(void *appdata_ptr)
+{
+	struct pam_conv* conv = malloc(sizeof *conv);
+	if (!conv) {
+		return NULL;
+	}
+	conv->conv = cb_pam_conv;
+	conv->appdata_ptr = appdata_ptr;
+	return conv;
+}