xfs_scrub: refactor inode prefix rendering code

[thirdparty/xfsprogs-dev.git] / scrub / common.c

diff --git a/scrub/common.c b/scrub/common.c
index 7db47044515b95cf731defcfd2986e529e49c20f..b41f443dddff18900aff4ab3e7efa4dcac258b7d 100644 (file)
--- a/scrub/common.c
+++ b/scrub/common.c
@@ -354,3 +354,38 @@ within_range(
 
        return true;
 }
+
+/*
+ * Render an inode number into a buffer in a format suitable for use in
+ * log messages. The buffer will be filled with:
+ *     "inode <inode number> (<ag number>/<ag inode number>)"
+ * If the @format argument is non-NULL, it will be rendered into the buffer
+ * after the inode representation and a single space.
+ */
+int
+scrub_render_ino_descr(
+       const struct scrub_ctx  *ctx,
+       char                    *buf,
+       size_t                  buflen,
+       uint64_t                ino,
+       uint32_t                gen,
+       const char              *format,
+       ...)
+{
+       va_list                 args;
+       uint32_t                agno;
+       uint32_t                agino;
+       int                     ret;
+
+       agno = cvt_ino_to_agno(&ctx->mnt, ino);
+       agino = cvt_ino_to_agino(&ctx->mnt, ino);
+       ret = snprintf(buf, buflen, _("inode %"PRIu64" (%"PRIu32"/%"PRIu32")%s"),
+                       ino, agno, agino, format ? " " : "");
+       if (ret < 0 || ret >= buflen || format == NULL)
+               return ret;
+
+       va_start(args, format);
+       ret += vsnprintf(buf + ret, buflen - ret, format, args);
+       va_end(args);
+       return ret;
+}