iolog_open: fix check for write mode on GNU Hurd

millert · millert · commit 8eeca49d32ba · 2025-11-18T18:09:59.000-07:00
diff --git a/lib/iolog/iolog_open.c b/lib/iolog/iolog_open.c
@@ -70,7 +70,9 @@ iolog_open(struct iolog_file *iol, int dfd, int iofd, const char *mode)
 	    "%s: invalid iofd %d", __func__, iofd);
 	debug_return_bool(false);
     }
-    if (iofd == IOFD_TIMING && ISSET(flags, O_WRONLY|O_RDWR)) {
+
+    /* Lock the timing file if opening for writing. */
+    if (iofd == IOFD_TIMING && (mode[0] == 'w' || mode[1] == '+')) {
 	lockit = true;
     }
 

Original file line number	Diff line number	Diff line change
`@@ -70,7 +70,9 @@ iolog_open(struct iolog_file iol, int dfd, int iofd, const char mode)`
`70`	`70`	`"%s: invalid iofd %d", __func__, iofd);`
`71`	`71`	`debug_return_bool(false);`
`72`	`72`	`}`
`73`		`- if (iofd == IOFD_TIMING && ISSET(flags, O_WRONLY\|O_RDWR)) {`
	`73`	`+`
	`74`	`+ /* Lock the timing file if opening for writing. */`
	`75`	`+ if (iofd == IOFD_TIMING && (mode[0] == 'w' \|\| mode[1] == '+')) {`
`74`	`76`	`lockit = true;`
`75`	`77`	`}`
`76`	`78`