wc: stricter file checking

venoosoo · venoosoo · commit adc63fa00c61 · 2026-04-09T16:22:23.000+03:00
diff --git a/src/uu/wc/src/wc.rs b/src/uu/wc/src/wc.rs
@@ -61,7 +61,8 @@ fn try_get_stdin_size() -> Option<usize> {
 
         let file_type = rustix::fs::FileType::from_raw_mode(stat.st_mode);
 
-        if file_type == rustix::fs::FileType::RegularFile && stat.st_size > 0 {
+        if file_type == rustix::fs::FileType::RegularFile && stat.st_size > 0 && stat.st_nlink == 1
+        {
             return Some(stat.st_size as usize);
         }
 

Original file line number	Diff line number	Diff line change
`@@ -61,7 +61,8 @@ fn try_get_stdin_size() -> Option<usize> {`
`61`	`61`
`62`	`62`	`let file_type = rustix::fs::FileType::from_raw_mode(stat.st_mode);`
`63`	`63`
`64`		`- if file_type == rustix::fs::FileType::RegularFile && stat.st_size > 0 {`
	`64`	`+ if file_type == rustix::fs::FileType::RegularFile && stat.st_size > 0 && stat.st_nlink == 1`
	`65`	`+ {`
`65`	`66`	`return Some(stat.st_size as usize);`
`66`	`67`	`}`
`67`	`68`