libbb: [x]fopen_for_{read,write} introduced and used.

 (by Valdimir)

function                                             old     new   delta
config_open2                                           -      41     +41
config_read                                          507     542     +35
find_pair                                            169     187     +18
fopen_for_write                                        -      14     +14
fopen_for_read                                         -      14     +14
find_main                                            406     418     +12
xfopen_for_write                                       -      10     +10
xfopen_for_read                                        -      10     +10
popstring                                            134     140      +6
parse_inittab                                        396     401      +5
next_token                                           923     928      +5
pack_gzip                                           1659    1661      +2
bb__parsespent                                       117     119      +2
fallbackSort                                        1719    1717      -2
evalvar                                             1376    1374      -2
qrealloc                                              36      33      -3
...
...
...
...
singlemount                                         4579    4569     -10
process_stdin                                        443     433     -10
patch_main                                          1111    1101     -10
ifupdown_main                                       2175    2165     -10
file_action_grep                                      90      80     -10
uuidcache_init                                       649     637     -12
hush_main                                            797     785     -12
read_config                                          230     217     -13
dpkg_main                                           3835    3820     -15
read_line_input                                     3134    3110     -24
sysctl_main                                          232     203     -29
config_open                                           40      10     -30
WARN_BAD_LINE                                         44       -     -44
login_main                                          1714    1575    -139
------------------------------------------------------------------------------
(add/remove: 5/1 grow/shrink: 8/74 up/down: 174/-737)        Total: -563 bytes

1 files changed, 3 insertions, 2 deletions

diff --git a/networking/dnsd.c b/networking/dnsd.c
index 0047a84..efb5cfb 100644
--- a/networking/dnsd.c
+++ b/networking/dnsd.c
@@ -113,7 +113,7 @@ static void dnsentryinit(void)
 	parser = config_open(fileconf);
 	if (parser) {
 		char *token[2];
-		while (config_read(parser, token, 2, 0, "# \t", 0)) {
+		while (config_read(parser, token, 2, 2, "# \t", 0)) {
 			unsigned int a,b,c,d;
 			/*
 			 * Assumes all host names are lower case only
@@ -121,7 +121,8 @@ static void dnsentryinit(void)
 			 * Presently the dot is copied into name without
 			 * converting to a length/string substring for that label.
 			 */
-			if (!token[1] || sscanf(token[1], ".%u.%u.%u.%u"+1, &a, &b, &c, &d) != 4)
+//			if (!token[1] || sscanf(token[1], ".%u.%u.%u.%u"+1, &a, &b, &c, &d) != 4)
+			if (sscanf(token[1], ".%u.%u.%u.%u"+1, &a, &b, &c, &d) != 4)
 				continue;
 
 			m = xzalloc(sizeof(*m));