First steps for libapk

1 files changed, 70 insertions, 0 deletions

diff --git a/src/print.c b/src/print.c
new file mode 100644
index 0000000..4b3d246
--- /dev/null
+++ b/src/print.c
@@ -0,0 +1,70 @@
+/* state.c - Alpine Package Keeper (APK)
+ *
+ * Copyright (C) 2005-2008 Natanael Copa <n@tanael.org>
+ * Copyright (C) 2008 Timo Teräs <timo.teras@iki.fi>
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation. See http://www.gnu.org/ for details.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <malloc.h>
+#include <errno.h>
+
+#include "apk_defines.h"
+#include "apk_print.h"
+
+int apk_print_indented(struct apk_indent *i, apk_blob_t blob)
+{
+	static const int wrap_length = 80;
+
+	if (i->x + blob.len + 1 >= wrap_length) {
+		i->x = i->indent;
+		printf("\n%*s", i->indent - 1, "");
+	}
+	i->x += printf(" %.*s", blob.len, blob.ptr);
+	return 0;
+}
+
+void apk_print_indented_words(struct apk_indent *i, const char *text)
+{
+	apk_blob_for_each_segment(APK_BLOB_STR(text), " ",
+		(apk_blob_cb) apk_print_indented, i);
+}
+
+const char *apk_error_str(int error)
+{
+	if (error < 0)
+		error = -error;
+	switch (error) {
+	case ENOKEY:
+		return "UNTRUSTED signature";
+	case EKEYREJECTED:
+		return "BAD signature";
+	case EIO:
+		return "IO ERROR";
+	case EBADMSG:
+		return "BAD archive";
+	case ENOMSG:
+		return "archive does not contain expected data";
+	default:
+		return strerror(error);
+	}
+}
+
+void apk_log(const char *prefix, const char *format, ...)
+{
+	va_list va;
+
+	if (prefix != NULL)
+		fprintf(stderr, "%s", prefix);
+	va_start(va, format);
+	vfprintf(stderr, format, va);
+	va_end(va);
+	fprintf(stderr, "\n");
+}
+