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-rw-r--r--src/shared/id128-print.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/src/shared/id128-print.c b/src/shared/id128-print.c
new file mode 100644
index 0000000..f232767
--- /dev/null
+++ b/src/shared/id128-print.c
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <stdio.h>
+
+#include "sd-id128.h"
+
+#include "alloc-util.h"
+#include "id128-print.h"
+#include "log.h"
+#include "pretty-print.h"
+#include "terminal-util.h"
+
+int id128_pretty_print_sample(const char *name, sd_id128_t id) {
+ _cleanup_free_ char *man_link = NULL, *mod_link = NULL;
+ const char *on, *off;
+ unsigned i;
+
+ on = ansi_highlight();
+ off = ansi_normal();
+
+ if (terminal_urlify("man:systemd-id128(1)", "systemd-id128(1)", &man_link) < 0)
+ return log_oom();
+
+ if (terminal_urlify("https://docs.python.org/3/library/uuid.html", "uuid", &mod_link) < 0)
+ return log_oom();
+
+ printf("As string:\n"
+ "%s" SD_ID128_FORMAT_STR "%s\n\n"
+ "As UUID:\n"
+ "%s" SD_ID128_UUID_FORMAT_STR "%s\n\n"
+ "As %s macro:\n"
+ "%s#define %s SD_ID128_MAKE(",
+ on, SD_ID128_FORMAT_VAL(id), off,
+ on, SD_ID128_FORMAT_VAL(id), off,
+ man_link,
+ on, name);
+ for (i = 0; i < 16; i++)
+ printf("%02x%s", id.bytes[i], i != 15 ? "," : "");
+ printf(")%s\n\n", off);
+
+ printf("As Python constant:\n"
+ ">>> import %s\n"
+ ">>> %s%s = uuid.UUID('" SD_ID128_FORMAT_STR "')%s\n",
+ mod_link,
+ on, name, SD_ID128_FORMAT_VAL(id), off);
+
+ return 0;
+}
+
+
+int id128_pretty_print(sd_id128_t id, Id128PrettyPrintMode mode) {
+ assert(mode >= 0);
+ assert(mode < _ID128_PRETTY_PRINT_MODE_MAX);
+
+ if (mode == ID128_PRINT_ID128) {
+ printf(SD_ID128_FORMAT_STR "\n",
+ SD_ID128_FORMAT_VAL(id));
+ return 0;
+ } else if (mode == ID128_PRINT_UUID) {
+ printf(SD_ID128_UUID_FORMAT_STR "\n",
+ SD_ID128_FORMAT_VAL(id));
+ return 0;
+ } else
+ return id128_pretty_print_sample("XYZ", id);
+}
+
+int id128_print_new(Id128PrettyPrintMode mode) {
+ sd_id128_t id;
+ int r;
+
+ r = sd_id128_randomize(&id);
+ if (r < 0)
+ return log_error_errno(r, "Failed to generate ID: %m");
+
+ return id128_pretty_print(id, mode);
+}