diff mbox series

[hurd,commited] hurd: Fix errlist error mapping

Message ID 20210823170926.3253205-1-samuel.thibault@ens-lyon.org
State Committed, archived
Headers
Series [hurd,commited] hurd: Fix errlist error mapping |

Checks

Context Check Description
dj/TryBot-apply_patch fail Patch failed to apply to master at the time it was sent
dj/TryBot-32bit fail Patch series failed to apply

Commit Message

Samuel Thibault Aug. 23, 2021, 5:09 p.m. UTC 
  On the Hurd, the errno values don't start at 0, so _sys_errlist_internal
needs index remapping. The _sys_errlist_internal definition already properly
uses ERR_MAP, but __get_errlist and __get_errname were not.
---
 stdio-common/errlist.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/stdio-common/errlist.c b/stdio-common/errlist.c
index 928e966b58..d6f667e1ab 100644
--- a/stdio-common/errlist.c
+++ b/stdio-common/errlist.c
@@ -34,8 +34,9 @@  const char *const _sys_errlist_internal[] =
 const char *
 __get_errlist (int errnum)
 {
-  if (errnum >= 0 && errnum < array_length (_sys_errlist_internal))
-    return _sys_errlist_internal[errnum];
+  int mapped = ERR_MAP (errnum);
+  if (mapped >= 0 && mapped < array_length (_sys_errlist_internal))
+    return _sys_errlist_internal[mapped];
   return NULL;
 }
 
@@ -67,10 +68,11 @@  static const unsigned short _sys_errnameidx[] =
 const char *
 __get_errname (int errnum)
 {
-  if (errnum < 0 || errnum >= array_length (_sys_errnameidx)
-      || (errnum > 0 && _sys_errnameidx[errnum] == 0))
+  int mapped = ERR_MAP (errnum);
+  if (mapped < 0 || mapped >= array_length (_sys_errnameidx)
+      || (mapped > 0 && _sys_errnameidx[mapped] == 0))
     return NULL;
-  return _sys_errname.str + _sys_errnameidx[errnum];
+  return _sys_errname.str + _sys_errnameidx[mapped];
 }
 
 #include <errlist-compat.c>