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yf_is_wireless_interface.function
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yf_is_wireless_interface.function
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#! /bin/true
# vi: set tabstop=4 syntax=sh : # colorize it in 'vi' and use shorter tabstops
# SPDX-License-Identifier: GPL-2.0-or-later
#######################################################################################
# #
# is_wireless_interface - check, if the specified interface is a wireless one #
# #
# parameters: #
# $1 - interface to be checked #
# #
# return code: #
# 0 - the interface is a wireless device #
# 1 - the interface isn't a wireless device #
# #
#######################################################################################
# #
# U: printf #
# W: - #
# F: yf_sysfs #
# I: - #
# K: network #
# #
#######################################################################################
yf_is_wireless_interface()
(
sysfs="$(yf_sysfs || printf "/sys")"
[ -d $sysfs/class/net/$1/wireless ] && return 0 || return 1
)