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authorDenys Vlasenko <vda.linux@googlemail.com>2019-04-13 14:17:55 +0200
committerDenys Vlasenko <vda.linux@googlemail.com>2019-04-13 14:17:55 +0200
commit94356088049a29c81dc29e448e621d81ccd43bfc (patch)
tree9129832215a462549910be2cdc1ce33a362f8597
parentdc1b2d43565dee709229dd76d856736bf543792d (diff)
downloadbusybox-94356088049a29c81dc29e448e621d81ccd43bfc.tar.gz
brctl: simplify str_to_jiffies()
function old new delta write_uint - 96 +96 brctl_main 721 678 -43 write_ulong 96 - -96 ------------------------------------------------------------------------------ (add/remove: 1/1 grow/shrink: 0/1 up/down: 96/-139) Total: -43 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--networking/brctl.c68
1 files changed, 20 insertions, 48 deletions
diff --git a/networking/brctl.c b/networking/brctl.c
index 804728e3c..0f2c10f22 100644
--- a/networking/brctl.c
+++ b/networking/brctl.c
@@ -66,9 +66,9 @@
//usage: "\n setpathcost BRIDGE IFACE COST Set path cost"
//usage: )
// Not yet implemented:
-// hairpin BRIDGE IFACE on|off Hairpin on/off
-// showmacs BRIDGE List mac addrs
-// showstp BRIDGE Show stp info
+// hairpin BRIDGE IFACE on|off Hairpin on/off
+// showmacs BRIDGE List mac addrs
+// showstp BRIDGE Show stp info
#include "libbb.h"
#include "common_bufsiz.h"
@@ -88,51 +88,23 @@
# define SIOCBRDELIF BRCTL_DEL_IF
#endif
-/* Use internal number parsing and not the "exact" conversion. */
-/* #define BRCTL_USE_INTERNAL 0 */ /* use exact conversion */
-#define BRCTL_USE_INTERNAL 1
-
#if ENABLE_FEATURE_BRCTL_FANCY
-/* FIXME: These 4 funcs are not really clean and could be improved */
-static ALWAYS_INLINE void bb_strtotimeval(struct timeval *tv,
- const char *time_str)
+static unsigned str_to_jiffies(const char *time_str)
{
- double secs;
-# if BRCTL_USE_INTERNAL
+ double dd;
char *endptr;
- secs = /*bb_*/strtod(time_str, &endptr);
- if (endptr == time_str)
-# else
- if (sscanf(time_str, "%lf", &secs) != 1)
-# endif
+ dd = /*bb_*/strtod(time_str, &endptr);
+ if (endptr == time_str || dd < 0)
bb_error_msg_and_die(bb_msg_invalid_arg_to, time_str, "timespec");
- tv->tv_sec = secs;
- tv->tv_usec = 1000000 * (secs - tv->tv_sec);
-}
-static ALWAYS_INLINE unsigned long tv_to_jiffies(const struct timeval *tv)
-{
- unsigned long long jif;
+ dd *= 100;
+ /* For purposes of brctl,
+ * capping SECONDS by ~20 million seconds is quite enough:
+ */
+ if (dd > INT_MAX)
+ dd = INT_MAX;
- jif = 1000000ULL * tv->tv_sec + tv->tv_usec;
-
- return jif/10000;
-}
-# if 0
-static void jiffies_to_tv(struct timeval *tv, unsigned long jiffies)
-{
- unsigned long long tvusec;
-
- tvusec = 10000ULL*jiffies;
- tv->tv_sec = tvusec/1000000;
- tv->tv_usec = tvusec - 1000000 * tv->tv_sec;
-}
-# endif
-static unsigned long str_to_jiffies(const char *time_str)
-{
- struct timeval tv;
- bb_strtotimeval(&tv, time_str);
- return tv_to_jiffies(&tv);
+ return dd;
}
#endif
@@ -208,7 +180,7 @@ static int show_bridge(const char *name, int need_hdr)
return 0;
}
-static void write_ulong(const char *name, const char *leaf, unsigned long val)
+static void write_uint(const char *name, const char *leaf, unsigned val)
{
char pathbuf[IFNAMSIZ + sizeof("/bridge/bridge_id") + 32];
int fd, n;
@@ -219,7 +191,7 @@ static void write_ulong(const char *name, const char *leaf, unsigned long val)
sprintf(pathbuf, "%.*s/%s", (int)IFNAMSIZ, name, leaf);
#endif
fd = xopen(pathbuf, O_WRONLY);
- n = sprintf(filedata, "%lu\n", val);
+ n = sprintf(filedata, "%u\n", val);
if (write(fd, filedata, n) < 0)
bb_simple_perror_msg_and_die(name);
close(fd);
@@ -338,7 +310,7 @@ int brctl_main(int argc UNUSED_PARAM, char **argv)
if (onoff < 0)
bb_error_msg_and_die(bb_msg_invalid_arg_to, *argv, applet_name);
onoff = (unsigned)onoff / 4;
- write_ulong(br, "bridge/stp_state", onoff);
+ write_uint(br, "bridge/stp_state", onoff);
//goto done_next_argv;
return EXIT_SUCCESS;
}
@@ -349,7 +321,7 @@ int brctl_main(int argc UNUSED_PARAM, char **argv)
* sethello BR N: "N*100\n" to /sys/class/net/BR/bridge/hello_time
* setmaxage BR N: "N*100\n" to /sys/class/net/BR/bridge/max_age
*/
- write_ulong(br,
+ write_uint(br,
nth_string(
"bridge/ageing_time" "\0" /* ARG_setageing */
"bridge/forward_delay""\0" /* ARG_setfd */
@@ -364,7 +336,7 @@ int brctl_main(int argc UNUSED_PARAM, char **argv)
}
if (key == ARG_setbridgeprio) {
- write_ulong(br, "bridge/priority", xatoi_positive(*argv));
+ write_uint(br, "bridge/priority", xatoi_positive(*argv));
//goto done_next_argv;
return EXIT_SUCCESS;
}
@@ -380,7 +352,7 @@ int brctl_main(int argc UNUSED_PARAM, char **argv)
* "setportprio BR PORT N" writes "N\n" to
* /sys/class/net/PORT/brport/priority
*/
- write_ulong(argv[0],
+ write_uint(argv[0],
nth_string(
"brport/path_cost" "\0" /* ARG_setpathcost */
"brport/priority", /* ARG_setportprio */