Make iptables-restore usable over a pipe

The attached patch flushes stdout between commands to make output
operations (-L etc) in iptables-restore usable over a pipe. stdio by
defaut buffers output if not connected to a terminal.

Henrik Nordstrom <henrik@henriknordstrom.net>

diff --git a/ip6tables-restore.c b/ip6tables-restore.c
index 6e41d510da69a155d7479527cb5b890df67f9ae7..9f6108a21ebf60e6ba5efd6f7d437074b6fee6b2 100644 (file)
--- a/ip6tables-restore.c
+++ b/ip6tables-restore.c
@@ -436,6 +436,7 @@ int main(int argc, char *argv[])
                                         &newargv[2], &handle);
 
                        free_argv();
+                       fflush(stdout);
                }
                if (!ret) {
                        fprintf(stderr, "%s: line %u failed\n",

diff --git a/iptables-restore.c b/iptables-restore.c
index ee3ba45591b4510e765c00767e55acd4d3e2fdb2..879683c54921114a727ebdb0bb3caf830e3f18bd 100644 (file)
--- a/iptables-restore.c
+++ b/iptables-restore.c
@@ -442,6 +442,7 @@ main(int argc, char *argv[])
                                         &newargv[2], &handle);
 
                        free_argv();
+                       fflush(stdout);
                }
                if (tablename && (strcmp(tablename, curtable) != 0))
                        continue;