1 files changed, 121 insertions, 0 deletions
diff --git a/src/libopkg/opkg_message.c b/src/libopkg/opkg_message.c
new file mode 100644
index 0000000..7114e3a
--- /dev/null
+++ b/src/libopkg/opkg_message.c
@@ -0,0 +1,121 @@
+/* opkg_message.c - the opkg package management system
+
+   Copyright (C) 2009 Ubiq Technologies <graham.gower@gmail.com>
+   Copyright (C) 2003 Daniele Nicolodi <daniele@grinta.net>
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
+
+   This program is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+*/
+
+#include <stdio.h>
+
+#include "opkg_conf.h"
+#include "opkg_message.h"
+#include "libbb/libbb.h"
+
+struct errlist {
+	char *errmsg;
+	struct errlist *next;
+};
+
+static struct errlist *error_list_head, *error_list_tail;
+
+static void
+push_error_list(char *msg)
+{
+	struct errlist *e;
+
+	e = xcalloc(1,  sizeof(struct errlist));
+	e->errmsg = xstrdup(msg);
+	e->next = NULL;
+
+	if (error_list_head) {
+		error_list_tail->next = e;
+		error_list_tail = e;
+	} else {
+		error_list_head = error_list_tail = e;
+	}
+}
+
+void
+free_error_list(void)
+{
+	struct errlist *err, *err_tmp;
+
+	err = error_list_head;
+	while (err != NULL) {
+		free(err->errmsg);
+		err_tmp = err;
+		err = err->next;
+		free(err_tmp);
+	}
+}
+
+void
+print_error_list(void)
+{
+	struct errlist *err = error_list_head;
+
+	if (err) {
+		printf("Collected errors:\n");
+		/* Here we print the errors collected and free the list */
+		while (err != NULL) {
+			printf(" * %s", err->errmsg);
+			err = err->next;
+		}
+	}
+}
+
+void
+opkg_message (message_level_t level, const char *fmt, ...)
+{
+	va_list ap;
+
+	if (conf->verbosity < level)
+		return;
+
+	if (conf->opkg_vmessage) {
+		/* Pass the message to libopkg users. */
+		va_start (ap, fmt);
+		conf->opkg_vmessage(level, fmt, ap);
+		va_end (ap);
+		return;
+	}
+
+	va_start (ap, fmt);
+
+	if (level == ERROR) {
+#define MSG_LEN 4096
+		char msg[MSG_LEN];
+		int ret;
+		ret = vsnprintf(msg, MSG_LEN, fmt, ap);
+		if (ret < 0) {
+			fprintf(stderr, "%s: encountered an output or encoding"
+					" error during vsnprintf.\n",
+					__FUNCTION__);
+			va_end (ap);
+			exit(EXIT_FAILURE);
+		}
+		if (ret >= MSG_LEN) {
+			fprintf(stderr, "%s: Message truncated.\n",
+					__FUNCTION__);
+		}
+		push_error_list(msg);
+	} else {
+		if (vprintf(fmt, ap) < 0) {
+			fprintf(stderr, "%s: encountered an output or encoding"
+					" error during vprintf.\n",
+					__FUNCTION__);
+			exit(EXIT_FAILURE);
+		}
+	}
+
+	va_end (ap);
+}