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-rw-r--r--hurd/porting/guidelines.mdwn6
1 files changed, 6 insertions, 0 deletions
diff --git a/hurd/porting/guidelines.mdwn b/hurd/porting/guidelines.mdwn
index 624f7fd5..2489d1d8 100644
--- a/hurd/porting/guidelines.mdwn
+++ b/hurd/porting/guidelines.mdwn
@@ -156,10 +156,16 @@ allocated buffer. One can thus use:
Same rationale as `PATH_MAX`. There is no limit on the number of arguments.
+This limit can be simply ignored, or replaced by an arbitrary constant, there is
+no restriction issue here.
+
## <a name="IOV_MAX"> `IOV_MAX` </a>
Same rationale as `PATH_MAX`. There is no limit on the number of iovec items.
+This limit can be simply ignored, or replaced by an arbitrary constant, there is
+no restriction issue here.
+
## <a name="MAXHOSTNAMELEN_tt_"> `MAXHOSTNAMELEN`, `HOST_NAME_MAX` </a>
Same as `PATH_MAX`. When you find a `gethostname()` function, which acts on a static buffer, you can replace it with Neal's [xgethostname function](http://walfield.org/pub/people/neal/xgethostname/) which returns the hostname as a dynamic buffer. For example: