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# Expand a list of selected hashes to a list of enabled hashes, using
# the information in hashes.conf.
#
# Copyright 2018 Zack Weinberg
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public License
# as published by the Free Software Foundation; either version 2.1 of
# the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, see
# <https://www.gnu.org/licenses/>.
BEGIN {
enable_all = 0
enable_strong = 0
enable_glibc = 0
enable_alt = 0
enable_fedora = 0
enable_freebsd = 0
enable_netbsd = 0
enable_openbsd = 0
enable_osx = 0
enable_owl = 0
enable_solaris = 0
enable_suse = 0
error = 0
split(SELECTED_HASHES, selected_hashes_list, ",")
for (i in selected_hashes_list) {
h = selected_hashes_list[i]
if (h == "all") {
enable_all = 1
} else if (h == "strong") {
enable_strong = 1
} else if (h == "glibc") {
enable_glibc = 1
} else if (h == "alt") {
enable_alt = 1
} else if (h == "fedora") {
enable_fedora = 1
} else if (h == "freebsd") {
enable_freebsd = 1
} else if (h == "netbsd") {
enable_netbsd = 1
} else if (h == "openbsd") {
enable_openbsd = 1
} else if (h == "osx") {
enable_osx = 1
} else if (h == "owl") {
enable_owl = 1
} else if (h == "solaris") {
enable_solaris = 1
} else if (h == "suse") {
enable_suse = 1
} else {
enable_some = 1
selected_hashes[h] = 1
}
}
if (enable_all && (enable_strong || enable_glibc || enable_some || \
enable_alt || enable_fedora || enable_freebsd || \
enable_netbsd || enable_openbsd || enable_osx || \
enable_owl || enable_solaris || enable_suse)) {
error = 1
exit 1
}
}
/^#/ {
next
}
{
if (enable_all || $1 in selected_hashes) {
enabled_hashes[$1] = 1
} else {
enabled_hashes[$1] = 0
split($4, flags, ",")
for (i in flags) {
flag = flags[i]
if (flag == "STRONG" && enable_strong) {
enabled_hashes[$1] = 1
} else if (flag == "GLIBC" && enable_glibc) {
enabled_hashes[$1] = 1
} else if (flag == "ALT" && enable_alt) {
enabled_hashes[$1] = 1
} else if (flag == "FEDORA" && enable_fedora) {
enabled_hashes[$1] = 1
} else if (flag == "FREEBSD" && enable_freebsd) {
enabled_hashes[$1] = 1
} else if (flag == "NETBSD" && enable_netbsd) {
enabled_hashes[$1] = 1
} else if (flag == "OPENBSD" && enable_openbsd) {
enabled_hashes[$1] = 1
} else if (flag == "OSX" && enable_osx) {
enabled_hashes[$1] = 1
} else if (flag == "OWL" && enable_owl) {
enabled_hashes[$1] = 1
} else if (flag == "SOLARIS" && enable_solaris) {
enabled_hashes[$1] = 1
} else if (flag == "SUSE" && enable_suse) {
enabled_hashes[$1] = 1
}
}
}
}
END {
if (error) {
exit 1
}
# Check for individual selected hashes that didn't appear in
# hashes.conf.
for (h in selected_hashes) {
if (!(h in enabled_hashes)) {
exit 1
}
}
enabled_hash_list = ","
for (i in enabled_hashes) {
if (enabled_hashes[i]) {
enabled_hash_list = enabled_hash_list i ","
}
}
print enabled_hash_list
}
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