Add error message in case of invalid compression algorithm

knizhnik · knizhnik · commit e753643b8d65 · 2018-12-06T19:00:08.000+03:00
diff --git a/src/data.c b/src/data.c
@@ -98,6 +98,8 @@ do_decompress(void* dst, size_t dst_size, void const* src, size_t src_size,
 	{
 		case NONE_COMPRESS:
 		case NOT_DEFINED_COMPRESS:
+		    if (errormsg)
+				*errormsg = "Invalid compression algorithm";
 			return -1;
 #ifdef HAVE_LIBZ
 		case ZLIB_COMPRESS:

Original file line number	Diff line number	Diff line change
`@@ -98,6 +98,8 @@ do_decompress(void* dst, size_t dst_size, void const* src, size_t src_size,`
`98`	`98`	`{`
`99`	`99`	`case NONE_COMPRESS:`
`100`	`100`	`case NOT_DEFINED_COMPRESS:`
	`101`	`+ if (errormsg)`
	`102`	`+ *errormsg = "Invalid compression algorithm";`
`101`	`103`	`return -1;`
`102`	`104`	`#ifdef HAVE_LIBZ`
`103`	`105`	`case ZLIB_COMPRESS:`