From bd0062922151710408edae80d0f67db20114c6c9 Mon Sep 17 00:00:00 2001
From: Leandro Lucarella <llucax@gmail.com>
Date: Sun, 27 Jun 2004 00:46:43 +0000
Subject: [PATCH 1/1] =?utf8?q?Se=20agrega=20vfsize()=20para=20obtener=20el?=
 =?utf8?q?=20tama=C3=B1o=20de=20un=20archivo=20multivolumen.?=
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---
 src/vfile/vfile.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++
 src/vfile/vfile.h |  3 +++
 2 files changed, 54 insertions(+)

diff --git a/src/vfile/vfile.c b/src/vfile/vfile.c
index 589d4aa..469ef76 100644
--- a/src/vfile/vfile.c
+++ b/src/vfile/vfile.c
@@ -215,3 +215,54 @@ int vfvol_open_next(VFILE* vfp)
 	return 0;
 }
 
+long vfsize(const char* path)
+{
+	VFILE* vfp = vfopen(path, "r", 0);
+	long size;
+	if (!vfp) return -1; /* error */
+	if (fseek(vfp->fp, 0l, SEEK_END) == -1)
+	{
+		vfclose(vfp);
+		return -1; /* error */
+	}
+	else
+	{
+		size = ftell(vfp->fp);
+		if (size == -1)
+		{
+			vfclose(vfp);
+			return -1; /* error */
+		}
+	}
+	while (!vfp->lastvol) /* mientras no sea el último volumen */
+	{
+		if (vfvol_open_next(vfp))
+		{
+			vfclose(vfp);
+			return -1; /* error */
+		}
+		if (fseek(vfp->fp, 0l, SEEK_END) == -1)
+		{
+			vfclose(vfp);
+			return -1; /* error */
+		}
+		else
+		{
+			long curr_size = ftell(vfp->fp);
+			if (curr_size == -1)
+			{
+				vfclose(vfp);
+				return -1; /* error */
+			}
+			size += curr_size;
+		}
+		if (vfvol_close(vfp))
+		{
+			vfclose(vfp);
+			return -1; /* error */
+		}
+	}
+	vfclose(vfp);
+	return size;
+}
+
diff --git a/src/vfile/vfile.h b/src/vfile/vfile.h
index 7b03604..ad4f0c1 100644
--- a/src/vfile/vfile.h
+++ b/src/vfile/vfile.h
@@ -103,5 +103,8 @@ size_t vfwrite(const void *ptr, size_t size, size_t nmemb, VFILE* vfp);
 /** Indica si es el fin del archivo multivolumen. */
 int vfeof(VFILE* vfp);
 
+/** Obtiene el tamaño de un archivo virtual multivolumen. */
+long vfsize(const char* path);
+
 #endif /* _JACU_VFILE_H_ */
 
-- 
2.43.0