nozzle_run_updown - execute updown commands associated with a nozzle device.

Copyright (C) 2010-2025 Red Hat, Inc. All rights reserved. kronosnet 2025-04-24 NOZZLE_RUN_UPDOWN(3)

nozzle_run_updown nozzle - pointer to the nozzle struct action - pre-up.d / up.d / down.d / post-down.d (see defines above) exec_string - pointers to string to record executing action stdout/stderr. The string is malloc'ed, the caller needs to free the buffer. If the script generates no output this string might be NULL. It is the application responsibility to call helper scripts before or after creating/destroying interfaces or IP addresses.

nozzle_run_updown - execute updown commands associated with a nozzle device.

0 on success -1 on error and errno is set (sanity checks and internal calls. -2 on error from executing the shell scripts, and no errno is set.

nozzle_close(3), nozzle_set_mtu(3), nozzle_get_fd(3), nozzle_get_mtu(3), nozzle_reset_mtu(3), nozzle_set_up(3), nozzle_get_ips(3), nozzle_set_down(3), nozzle_reset_mac(3), nozzle_get_handle_by_name(3), nozzle_open(3), nozzle_del_ip(3), nozzle_get_mac(3), nozzle_set_mac(3), nozzle_get_name_by_handle(3), nozzle_add_ip(3)

#include<libnozzle.h>intnozzle_run_updown( constnozzle_tnozzle, uint8_taction, char**exec_string );