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| author | Denis Vlasenko | 2008-04-01 14:47:57 +0000 |
|---|---|---|
| committer | Denis Vlasenko | 2008-04-01 14:47:57 +0000 |
| commit | 468aea2d8800cc0496383616d82d7c957ae8bc50 (patch) | |
| tree | 8a2f3d80dc2440dd007caed4cfa235b3858c9170 /coreutils | |
| parent | 165f5b394fa337e71e08435b51108f4394199b2b (diff) | |
| download | busybox-468aea2d8800cc0496383616d82d7c957ae8bc50.zip busybox-468aea2d8800cc0496383616d82d7c957ae8bc50.tar.gz | |
shells: do not frocibly enable test, echo and kill _applets_,
just build relevant source and use xxx_main functions.
build system: add a special case when we have exactly one applet enabled
(makes "true", "false", "basename" REALLY tiny).
getopt32: do not use stdio.
function old new delta
getopt32 1385 1412 +27
make_device 1187 1200 +13
basename_main 120 127 +7
tcpudpsvd_main 1922 1926 +4
testcmd 5 - -5
echocmd 5 - -5
fuser_main 1243 1231 -12
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 4/1 up/down: 51/-22) Total: 29 bytes
Diffstat (limited to 'coreutils')
| -rw-r--r-- | coreutils/Kbuild | 3 | ||||
| -rw-r--r-- | coreutils/basename.c | 11 | ||||
| -rw-r--r-- | coreutils/echo.c | 4 |
3 files changed, 10 insertions, 8 deletions
diff --git a/coreutils/Kbuild b/coreutils/Kbuild index b9ed0d7..253eb6d 100644 --- a/coreutils/Kbuild +++ b/coreutils/Kbuild @@ -30,6 +30,7 @@ lib-$(CONFIG_DOS2UNIX) += dos2unix.o lib-$(CONFIG_DU) += du.o lib-$(CONFIG_ECHO) += echo.o lib-$(CONFIG_ASH) += echo.o # used by ash +lib-$(CONFIG_HUSH) += echo.o # used by hush lib-$(CONFIG_ENV) += env.o lib-$(CONFIG_EXPR) += expr.o lib-$(CONFIG_EXPAND) += expand.o @@ -72,6 +73,8 @@ lib-$(CONFIG_TAIL) += tail.o lib-$(CONFIG_TEE) += tee.o lib-$(CONFIG_TEST) += test.o lib-$(CONFIG_ASH) += test.o # used by ash +lib-$(CONFIG_HUSH) += test.o # used by hush +lib-$(CONFIG_MSH) += test.o # used by msh lib-$(CONFIG_TOUCH) += touch.o lib-$(CONFIG_TR) += tr.o lib-$(CONFIG_TRUE) += true.o diff --git a/coreutils/basename.c b/coreutils/basename.c index d536a1b..ed23779 100644 --- a/coreutils/basename.c +++ b/coreutils/basename.c @@ -37,15 +37,16 @@ int basename_main(int argc, char **argv) /* It should strip slash: /abc/def/ -> def */ s = bb_get_last_path_component_strip(*++argv); + m = strlen(s); if (*++argv) { n = strlen(*argv); - m = strlen(s); if ((m > n) && ((strcmp)(s+m-n, *argv) == 0)) { - s[m-n] = '\0'; + m -= n; + s[m] = '\0'; } } - puts(s); - - return fflush(stdout); + /* puts(s) will do, but we can do without stdio this way: */ + s[m++] = '\n'; + return full_write(STDOUT_FILENO, s, m) == m; } diff --git a/coreutils/echo.c b/coreutils/echo.c index fd6c950..6e25db6 100644 --- a/coreutils/echo.c +++ b/coreutils/echo.c @@ -27,10 +27,8 @@ /* This is a NOFORK applet. Be very careful! */ -/* argc is unused, but removing it precludes compiler from - * using call -> jump optimization */ +/* NB: can be used by shell even if not enabled as applet */ -int echo_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int echo_main(int argc ATTRIBUTE_UNUSED, char **argv) { const char *arg; |