emo/busybox
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Avoid reinventing the wheel (and thus save some space).

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This commit is contained in:
Matt Kraai 2000-10-25 19:00:51 +00:00
parent ef5529b278
commit a0428eee9e
2 changed files with 26 additions and 52 deletions
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39
applets/busybox.c
View File

@ -81,11 +81,18 @@ static void install_links(const char *busybox, int use_symbolic_links)
#endif /* BB_FEATURE_INSTALLER */ #endif /* BB_FEATURE_INSTALLER */
static int applet_name_compare(const void *x, const void *y)
{
const struct BB_applet *applet1 = x;
const struct BB_applet *applet2 = y;
return strcmp(applet1->name, applet2->name);
}
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
struct BB_applet search_applet, *applet;
const char *s; const char *s;
int u, l; /* Lower and upper bounds for the binary search. */
applet_name = "busybox"; applet_name = "busybox";
#ifdef BB_FEATURE_INSTALLER #ifdef BB_FEATURE_INSTALLER
@ -134,31 +141,11 @@ int main(int argc, char **argv)
#endif #endif
/* Do a binary search to find the applet entry given the name. */ /* Do a binary search to find the applet entry given the name. */
search_applet.name = applet_name;
u = NUM_APPLETS - 1; applet = bsearch(&search_applet, applets, NUM_APPLETS,
l = 0; sizeof(struct BB_applet), applet_name_compare);
if (applet != NULL)
for (;;) { exit((*(applet->main)) (argc, argv));
int i = l + (u - l) / 2;
int j = strcmp(applet_name, applets[i].name);
if (j == 0) {
if (applets[i].usage && argv[1] && strcmp(argv[1], "--help") == 0)
usage(applets[i].usage);
exit(((*(applets[i].main)) (argc, argv)));
}
if (u == l)
break;
if (j < 0)
u = i - 1;
else
l = i + 1;
if (u < l)
break;
}
return(busybox_main(argc, argv)); return(busybox_main(argc, argv));
} }

39
busybox.c
View File

@ -81,11 +81,18 @@ static void install_links(const char *busybox, int use_symbolic_links)
#endif /* BB_FEATURE_INSTALLER */ #endif /* BB_FEATURE_INSTALLER */
static int applet_name_compare(const void *x, const void *y)
{
const struct BB_applet *applet1 = x;
const struct BB_applet *applet2 = y;
return strcmp(applet1->name, applet2->name);
}
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
struct BB_applet search_applet, *applet;
const char *s; const char *s;
int u, l; /* Lower and upper bounds for the binary search. */
applet_name = "busybox"; applet_name = "busybox";
#ifdef BB_FEATURE_INSTALLER #ifdef BB_FEATURE_INSTALLER
@ -134,31 +141,11 @@ int main(int argc, char **argv)
#endif #endif
/* Do a binary search to find the applet entry given the name. */ /* Do a binary search to find the applet entry given the name. */
search_applet.name = applet_name;
u = NUM_APPLETS - 1; applet = bsearch(&search_applet, applets, NUM_APPLETS,
l = 0; sizeof(struct BB_applet), applet_name_compare);
if (applet != NULL)
for (;;) { exit((*(applet->main)) (argc, argv));
int i = l + (u - l) / 2;
int j = strcmp(applet_name, applets[i].name);
if (j == 0) {
if (applets[i].usage && argv[1] && strcmp(argv[1], "--help") == 0)
usage(applets[i].usage);
exit(((*(applets[i].main)) (argc, argv)));
}
if (u == l)
break;
if (j < 0)
u = i - 1;
else
l = i + 1;
if (u < l)
break;
}
return(busybox_main(argc, argv)); return(busybox_main(argc, argv));
} }