From 2ea826b428246eb62be81630f441a4367a675968 Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Sat, 17 Aug 2024 17:10:04 +0200
Subject: *: getxattr

---
 src/cmd/getxattr.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 src/cmd/getxattr.c

(limited to 'src/cmd/getxattr.c')

diff --git a/src/cmd/getxattr.c b/src/cmd/getxattr.c
new file mode 100644
index 0000000..3a3a4f9
--- /dev/null
+++ b/src/cmd/getxattr.c
@@ -0,0 +1,56 @@
+#include <camellia.h>
+#include <camellia/syscalls.h>
+#include <ctype.h>
+#include <err.h>
+#include <stdio.h>
+#include <string.h>
+
+ssize_t
+get(hid_t h, const char *name, char *buf, size_t len)
+{
+	ssize_t ret = _sys_getxattr(h, name, buf, len, 0);
+	if (ret < 0) {
+		fprintf(stderr, "error when getting %s: %s\n", name, strerror(-ret));
+	} else {
+		printf("%s: ", name);
+
+		for (ssize_t i = 0; i < ret; i++) {
+			if (isprint(buf[i])) {
+				putchar(buf[i]);
+			} else {
+				printf("\\x%02x", (unsigned char)buf[i]);
+			}
+		}
+		printf("\n");
+	}
+	return ret;
+}
+
+int
+main(int argc, char **argv)
+{
+	if (argc < 2) {
+		fprintf(stderr, "usage: getxattr file [xattrs...]\n");
+		return 1;
+	}
+	hid_t h = camellia_open(argv[1], OPEN_READ);
+	char buf[512];
+	if (h < 0) err(1, "open");
+
+	if (argc == 2) {
+		ssize_t ret = get(h, "virt.index", buf, sizeof(buf));
+		if (ret < 0) return 1;
+		if (0 < ret && buf[ret-1] != '\0') {
+			fprintf(stderr, "index truncated\n");
+		} else {
+			for (ssize_t i = 0; i < ret; i += strlen(buf+i) + 1) {
+				char buf2[512];
+				get(h, buf+i, buf2, sizeof(buf2));
+			}
+		}
+	} else {
+		for (int i = 2; i < argc; i++) {
+			get(h, argv[i], buf, sizeof(buf));
+		}
+	}
+}
-- 
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