X-Git-Url: https://git.llucax.com/z.facultad/75.06/jacu.git/blobdiff_plain/7fe99d86e55a363a603d271e7952e4ba93246cc9..bd0062922151710408edae80d0f67db20114c6c9:/src/vfile/vfile.c

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;
+}
+