svn commit: trunk/busybox: applets include shell
vda at busybox.net
vda at busybox.net
Sun Dec 24 15:23:30 UTC 2006
Author: vda
Date: 2006-12-24 07:23:28 -0800 (Sun, 24 Dec 2006)
New Revision: 17070
Log:
random tiny size savings
Modified:
trunk/busybox/applets/applets.c
trunk/busybox/applets/busybox.c
trunk/busybox/include/busybox.h
trunk/busybox/shell/ash.c
trunk/busybox/shell/msh.c
Changeset:
Modified: trunk/busybox/applets/applets.c
===================================================================
--- trunk/busybox/applets/applets.c 2006-12-24 07:30:09 UTC (rev 17069)
+++ trunk/busybox/applets/applets.c 2006-12-24 15:23:28 UTC (rev 17070)
@@ -44,7 +44,7 @@
static struct BB_applet *applet_using;
/* The -1 arises because of the {0,NULL,0,-1} entry above. */
-const size_t NUM_APPLETS = (sizeof (applets) / sizeof (struct BB_applet) - 1);
+const unsigned short NUM_APPLETS = (sizeof (applets) / sizeof (struct BB_applet) - 1);
#ifdef CONFIG_FEATURE_SUID_CONFIG
@@ -459,8 +459,6 @@
return strcmp(name, applet->name);
}
-extern const size_t NUM_APPLETS;
-
struct BB_applet *find_applet_by_name(const char *name)
{
return bsearch(name, applets, NUM_APPLETS, sizeof(struct BB_applet),
@@ -469,15 +467,19 @@
void run_applet_by_name(const char *name, int argc, char **argv)
{
- if (ENABLE_FEATURE_SUID_CONFIG) parse_config_file();
+ if (ENABLE_FEATURE_SUID_CONFIG)
+ parse_config_file();
- if (!strncmp(name, "busybox", 7)) busybox_main(argc, argv);
+ if (!strncmp(name, "busybox", 7))
+ exit(busybox_main(argc, argv));
/* Do a binary search to find the applet entry given the name. */
applet_using = find_applet_by_name(name);
if (applet_using) {
applet_name = applet_using->name;
- if(argc==2 && !strcmp(argv[1], "--help")) bb_show_usage();
- if(ENABLE_FEATURE_SUID) check_suid(applet_using);
- exit((*(applet_using->main))(argc, argv));
+ if (argc == 2 && !strcmp(argv[1], "--help"))
+ bb_show_usage();
+ if (ENABLE_FEATURE_SUID)
+ check_suid(applet_using);
+ exit(applet_using->main(argc, argv));
}
}
Modified: trunk/busybox/applets/busybox.c
===================================================================
--- trunk/busybox/applets/busybox.c 2006-12-24 07:30:09 UTC (rev 17069)
+++ trunk/busybox/applets/busybox.c 2006-12-24 15:23:28 UTC (rev 17070)
@@ -14,8 +14,8 @@
* this should be consistent w/ the enum, busybox.h::Location,
* or else...
*/
-static const char usr_bin [] ="/usr/bin";
-static const char usr_sbin[] ="/usr/sbin";
+static const char usr_bin [] = "/usr/bin";
+static const char usr_sbin[] = "/usr/sbin";
static const char* const install_dir[] = {
&usr_bin [8], /* "", equivalent to "/" for concat_path_file() */
@@ -26,25 +26,25 @@
};
/* abstract link() */
-typedef int (*__link_f)(const char *, const char *);
+typedef int (*link_func)(const char *, const char *);
/* create (sym)links for each applet */
static void install_links(const char *busybox, int use_symbolic_links)
{
- __link_f Link = link;
-
+ link_func lf = link;
char *fpc;
int i;
int rc;
if (use_symbolic_links)
- Link = symlink;
+ lf = symlink;
for (i = 0; applets[i].name != NULL; i++) {
fpc = concat_path_file(
- install_dir[applets[i].location], applets[i].name);
- rc = Link(busybox, fpc);
- if (rc!=0 && errno!=EEXIST) {
+ install_dir[applets[i].location],
+ applets[i].name);
+ rc = lf(busybox, fpc);
+ if (rc != 0 && errno != EEXIST) {
bb_perror_msg("%s", fpc);
}
free(fpc);
@@ -59,10 +59,11 @@
{
const char *s;
- applet_name=argv[0];
- if (*applet_name == '-') applet_name++;
- for (s = applet_name; *s ;)
- if (*(s++) == '/') applet_name = s;
+ applet_name = argv[0];
+ if (*applet_name == '-')
+ applet_name++;
+ while ((s = strchr(applet_name, '/')))
+ applet_name = s + 1;
/* Set locale for everybody except 'init' */
if (ENABLE_LOCALE_SUPPORT && getpid() != 1)
@@ -81,44 +82,41 @@
*/
if (ENABLE_FEATURE_INSTALLER && argc > 1 && !strcmp(argv[1], "--install")) {
int use_symbolic_links = 0;
- int rc = 0;
char *busybox;
/* to use symlinks, or not to use symlinks... */
- if (argc > 2) {
- if ((strcmp(argv[2], "-s") == 0)) {
+ if (argc > 2)
+ if (strcmp(argv[2], "-s") == 0)
use_symbolic_links = 1;
- }
- }
/* link */
// XXX: FIXME: this is broken. Why not just use argv[0] ?
busybox = xreadlink("/proc/self/exe");
- if (busybox) {
- install_links(busybox, use_symbolic_links);
+ if (!busybox)
+ return 1;
+ install_links(busybox, use_symbolic_links);
+ if (ENABLE_FEATURE_CLEAN_UP)
free(busybox);
- } else {
- rc = 1;
- }
- return rc;
+ return 0;
}
/* Deal with --help. (Also print help when called with no arguments) */
- if (argc==1 || !strcmp(argv[1],"--help") ) {
- if (argc>2) {
+ if (argc == 1 || !strcmp(argv[1], "--help") ) {
+ if (argc > 2) {
applet_name = argv[2];
run_applet_by_name(applet_name, 2, argv);
} else {
const struct BB_applet *a;
int col, output_width;
+ output_width = 80 - sizeof("start-stop-daemon, ") - 8;
if (ENABLE_FEATURE_AUTOWIDTH) {
/* Obtain the terminal width. */
get_terminal_width_height(0, &output_width, NULL);
/* leading tab and room to wrap */
output_width -= sizeof("start-stop-daemon, ") + 8;
- } else output_width = 80 - sizeof("start-stop-daemon, ") - 8;
+ }
printf("%s\n"
"Copyright (C) 1998-2006 Erik Andersen, Rob Landley, and others.\n"
@@ -130,19 +128,19 @@
"\tlink to busybox for each function they wish to use and BusyBox\n"
"\twill act like whatever it was invoked as!\n"
"\nCurrently defined functions:\n", bb_msg_full_version);
-
- col=0;
+ col = 0;
for(a = applets; a->name;) {
- col += printf("%s%s", (col ? ", " : "\t"), (a++)->name);
+ col += printf("%s%s", (col ? ", " : "\t"), a->name);
+ a++;
if (col > output_width && a->name) {
- printf(",\n");
+ puts(",");
col = 0;
}
}
- printf("\n\n");
- exit(0);
+ puts("\n");
+ return 0;
}
- } else run_applet_by_name(argv[1], argc-1, argv+1);
+ } else run_applet_by_name(argv[1], argc - 1, argv + 1);
bb_error_msg_and_die("applet not found");
}
Modified: trunk/busybox/include/busybox.h
===================================================================
--- trunk/busybox/include/busybox.h 2006-12-24 07:30:09 UTC (rev 17069)
+++ trunk/busybox/include/busybox.h 2006-12-24 15:23:28 UTC (rev 17070)
@@ -9,7 +9,7 @@
#include "libbb.h"
-/* order matters: used as index into "install_dir[]" in busybox.c */
+/* order matters: used as index into "install_dir[]" in busybox.c */
enum Location {
_BB_DIR_ROOT = 0,
_BB_DIR_BIN,
@@ -31,8 +31,9 @@
__extension__ enum SUIDRoot need_suid:4;
};
-/* From busybox.c */
+/* From busybox.c and applet.c */
extern const struct BB_applet applets[];
+extern const unsigned short NUM_APPLETS;
/* Automagically pull in all the applet function prototypes and
* applet usage strings. These are all of the form:
Modified: trunk/busybox/shell/ash.c
===================================================================
--- trunk/busybox/shell/ash.c 2006-12-24 07:30:09 UTC (rev 17069)
+++ trunk/busybox/shell/ash.c 2006-12-24 15:23:28 UTC (rev 17070)
@@ -11893,17 +11893,11 @@
}
}
#ifdef CONFIG_FEATURE_SH_STANDALONE_SHELL
- {
- extern const struct BB_applet applets[];
- extern const size_t NUM_APPLETS;
-
- for (i = 0; i < NUM_APPLETS; i++) {
-
- col += out1fmt("%c%s", ((col == 0) ? '\t' : ' '), applets[i].name);
- if (col > 60) {
- out1fmt("\n");
- col = 0;
- }
+ for (i = 0; i < NUM_APPLETS; i++) {
+ col += out1fmt("%c%s", ((col == 0) ? '\t' : ' '), applets[i].name);
+ if (col > 60) {
+ out1fmt("\n");
+ col = 0;
}
}
#endif
Modified: trunk/busybox/shell/msh.c
===================================================================
--- trunk/busybox/shell/msh.c 2006-12-24 07:30:09 UTC (rev 17069)
+++ trunk/busybox/shell/msh.c 2006-12-24 15:23:28 UTC (rev 17070)
@@ -3243,8 +3243,8 @@
int col;
const struct builtincmd *x;
- printf("\nBuilt-in commands:\n");
- printf("-------------------\n");
+ puts("\nBuilt-in commands:\n"
+ "-------------------");
for (col = 0, x = builtincmds; x->builtinfunc != NULL; x++) {
if (!x->name)
@@ -3259,8 +3259,6 @@
{
int i;
const struct BB_applet *applet;
- extern const struct BB_applet applets[];
- extern const size_t NUM_APPLETS;
for (i = 0, applet = applets; i < NUM_APPLETS; applet++, i++) {
if (!applet->name)
@@ -3274,7 +3272,7 @@
}
}
#endif
- printf("\n\n");
+ puts("\n");
return EXIT_SUCCESS;
}
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