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-rw-r--r--nscd/connections.c22
1 files changed, 14 insertions, 8 deletions
diff --git a/nscd/connections.c b/nscd/connections.c
index 582a6cf8f0..4cf397d201 100644
--- a/nscd/connections.c
+++ b/nscd/connections.c
@@ -427,8 +427,9 @@ gr_send_answer (int conn, struct group *grp)
struct iovec *vec;
size_t *len;
gr_response_header resp;
- size_t total_len;
+ size_t total_len, sum;
int nblocks;
+ size_t maxiov;
resp.version = NSCD_VERSION;
if (grp != NULL)
@@ -501,16 +502,21 @@ gr_send_answer (int conn, struct group *grp)
}
}
+#ifdef UIO_MAXIOV
+ maxiov = UIO_MAXIOV;
+#else
+ maxiov = sysconf (_SC_UIO_MAXIOV);
+#endif
+
/* Send all the data. */
- while (nblocks > UIO_MAXIOV)
+ sum = 0;
+ while (nblocks > maxiov)
{
- if (writev (sock[conn], vec, UIO_MAXIOV) != total_len)
- dbg_log (_("write incomplete on send group answer: %s"),
- strerror (errno));
- vec += UIO_MAXIOV;
- nblocks -= UIO_MAXIOV;
+ sum += writev (sock[conn], vec, maxiov);
+ vec += maxiov;
+ nblocks -= maxiov;
}
- if (writev (sock[conn], vec, nblocks) != total_len)
+ if (sum + writev (sock[conn], vec, nblocks) != total_len)
dbg_log (_("write incomplete on send group answer: %s"),
strerror (errno));
}