test-example: Provide test which uses unshare(8)

[secnet.git] / slip.c

diff --git a/slip.c b/slip.c
index d8f1a17113f4cd20b8711617f684c07a1f1f159a..9e63cb3cd6f3714c37524ca10f1e66f70c6cf9a1 100644 (file)
--- a/slip.c
+++ b/slip.c
@@ -79,6 +79,9 @@ static void slip_unstuff(struct slip *st, uint8_t *buf, uint32_t l)
        int outputchr;
        enum { OUTPUT_END = 256, OUTPUT_NOTHING = 257 };
 
+       if (!st->buff->size)
+           buffer_init(st->buff,calculate_max_start_pad());
+
        if (st->pending_esc) {
            st->pending_esc=False;
            switch(buf[i]) {
@@ -115,7 +118,7 @@ static void slip_unstuff(struct slip *st, uint8_t *buf, uint32_t l)
        if (st->ignoring_packet) {
            if (outputchr == OUTPUT_END) {
                st->ignoring_packet=False;
-               buffer_init(st->buff,st->nl.max_start_pad);
+               st->buff->size=0;
            }
        } else {
            if (outputchr == OUTPUT_END) {
@@ -123,7 +126,7 @@ static void slip_unstuff(struct slip *st, uint8_t *buf, uint32_t l)
                    st->netlink_to_tunnel(&st->nl,st->buff);
                    BUF_ALLOC(st->buff,"userv_afterpoll");
                }
-               buffer_init(st->buff,st->nl.max_start_pad);
+               st->buff->size=0;
            } else if (outputchr != OUTPUT_NOTHING) {
                if (st->buff->size < st->buff->len) {
                    buf_append_uint8(st->buff,outputchr);
@@ -230,7 +233,8 @@ static void userv_userv_callback(void *sst, pid_t pid, int status)
            fatal("%s: userv exited unexpectedly: uncaught signal %d",
                  st->slip.nl.name,WTERMSIG(status));
        } else {
-           fatal("%s: userv stopped unexpectedly");
+           fatal("%s: userv stopped unexpectedly",
+                 st->slip.nl.name);
        }
     }
     Message(M_WARNING,"%s: userv subprocess died with status %d\n",