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wg: allow in-line comments

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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld 2018-02-16 20:10:25 +01:00
parent cc8a25e2f6
commit 437116f238
4 changed files with 20 additions and 13 deletions
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5
contrib/reresolve-dns/reresolve-dns.sh
View file

@ -29,8 +29,9 @@ reset_peer_section() {
reset_peer_section
while read -r line || [[ -n $line ]]; do
key="${line%%=*}"; key="${key##*([[:space:]])}"; key="${key%%*([[:space:]])}"
value="${line#*=}"; value="${value##*([[:space:]])}"; value="${value%%*([[:space:]])}"
stripped="${line%%\#*}"
key="${stripped%%=*}"; key="${key##*([[:space:]])}"; key="${key%%*([[:space:]])}"
value="${stripped#*=}"; value="${value##*([[:space:]])}"; value="${value%%*([[:space:]])}"
[[ $key == "["* ]] && { process_peer; reset_peer_section; }
[[ $key == "[Peer]" ]] && PEER_SECTION=1
if [[ $PEER_SECTION -eq 1 ]]; then

17
src/config.c
View file

@ -417,25 +417,30 @@ error:
bool config_read_line(struct config_ctx *ctx, const char *input)
{
size_t len = strlen(input), cleaned_len = 0;
char *line = calloc(len + 1, sizeof(char));
size_t len, cleaned_len = 0;
char *line, *comment;
bool ret = true;
/* This is what strchrnull is for, but that isn't portable. */
comment = strchr(input, COMMENT_CHAR);
if (comment)
len = comment - input;
else
len = strlen(input);
line = calloc(len + 1, sizeof(char));
if (!line) {
perror("calloc");
ret = false;
goto out;
}
if (!len)
goto out;
for (size_t i = 0; i < len; ++i) {
if (!isspace(input[i]))
line[cleaned_len++] = input[i];
}
if (!cleaned_len)
goto out;
if (line[0] == COMMENT_CHAR)
goto out;
ret = process_line(ctx, line);
out:
free(line);

7
src/wg-quick.bash
View file

@ -27,7 +27,7 @@ PROGRAM="${0##*/}"
ARGS=( "$@" )
parse_options() {
local interface_section=0 line key value
local interface_section=0 line key value stripped
CONFIG_FILE="$1"
[[ $CONFIG_FILE =~ ^[a-zA-Z0-9_=+.-]{1,15}$ ]] && CONFIG_FILE="/etc/wireguard/$CONFIG_FILE.conf"
[[ -e $CONFIG_FILE ]] || die "\`$CONFIG_FILE' does not exist"
@ -37,8 +37,9 @@ parse_options() {
INTERFACE="${BASH_REMATCH[2]}"
shopt -s nocasematch
while read -r line || [[ -n $line ]]; do
key="${line%%=*}"; key="${key##*([[:space:]])}"; key="${key%%*([[:space:]])}"
value="${line#*=}"; value="${value##*([[:space:]])}"; value="${value%%*([[:space:]])}"
stripped="${line%%\#*}"
key="${stripped%%=*}"; key="${key##*([[:space:]])}"; key="${key%%*([[:space:]])}"
value="${stripped#*=}"; value="${value##*([[:space:]])}"; value="${value%%*([[:space:]])}"
[[ $key == "["* ]] && interface_section=0
[[ $key == "[Interface]" ]] && interface_section=1
if [[ $interface_section -eq 1 ]]; then

4
src/wg.8
View file

@ -165,8 +165,8 @@ when unspecified, this option is off. Most users will not need this. Optional.
.SH CONFIGURATION FILE FORMAT EXAMPLE
This example may be used as a model for writing configuration files, following an
INI-like syntax. Lines that start with a '#' are considered comments and are thus
ignored.
INI-like syntax. Characters after and including a '#' are considered comments and
are thus ignored.
[Interface]
.br