mirror of
https://github.com/sheumann/hush.git
synced 2024-12-22 14:30:31 +00:00
95 lines
2.2 KiB
C
95 lines
2.2 KiB
C
|
/* vi: set sw=4 ts=4: */
|
||
|
/*
|
||
|
* Applet table generator.
|
||
|
* Runs on host and produces include/applet_tables.h
|
||
|
*
|
||
|
* Copyright (C) 2007 Denys Vlasenko <vda.linux@googlemail.com>
|
||
|
*
|
||
|
* Licensed under GPLv2, see file License in this tarball for details.
|
||
|
*/
|
||
|
|
||
|
#include <stdlib.h>
|
||
|
#include <string.h>
|
||
|
#include <stdio.h>
|
||
|
|
||
|
#include "../include/autoconf.h"
|
||
|
#include "../include/busybox.h"
|
||
|
|
||
|
struct bb_applet {
|
||
|
const char *name;
|
||
|
const char *main;
|
||
|
enum bb_install_loc_t install_loc;
|
||
|
enum bb_suid_t need_suid;
|
||
|
/* true if instead of fork(); exec("applet"); waitpid();
|
||
|
* one can do fork(); exit(applet_main(argc,argv)); waitpid(); */
|
||
|
unsigned char noexec;
|
||
|
/* Even nicer */
|
||
|
/* true if instead of fork(); exec("applet"); waitpid();
|
||
|
* one can simply call applet_main(argc,argv); */
|
||
|
unsigned char nofork;
|
||
|
};
|
||
|
|
||
|
/* Define struct bb_applet applets[] */
|
||
|
#include "../include/applets.h"
|
||
|
|
||
|
enum { NUM_APPLETS = sizeof(applets)/sizeof(applets[0]) };
|
||
|
|
||
|
static int offset[NUM_APPLETS];
|
||
|
|
||
|
static int cmp_name(const void *a, const void *b)
|
||
|
{
|
||
|
const struct bb_applet *aa = a;
|
||
|
const struct bb_applet *bb = b;
|
||
|
return strcmp(aa->name, bb->name);
|
||
|
}
|
||
|
|
||
|
int main(int argc, char **argv)
|
||
|
{
|
||
|
int i;
|
||
|
int ofs;
|
||
|
|
||
|
qsort(applets, NUM_APPLETS, sizeof(applets[0]), cmp_name);
|
||
|
|
||
|
/* Keep in sync with include/busybox.h! */
|
||
|
|
||
|
puts("const char applet_names[] ALIGN1 =");
|
||
|
ofs = 0;
|
||
|
i = 0;
|
||
|
for (i = 0; i < NUM_APPLETS; i++) {
|
||
|
offset[i] = ofs;
|
||
|
ofs += strlen(applets[i].name) + 1;
|
||
|
printf("\"%s\" \"\\0\"\n", applets[i].name);
|
||
|
}
|
||
|
puts(";");
|
||
|
|
||
|
puts("int (*const applet_mains[])(int argc, char **argv) = {");
|
||
|
for (i = 0; i < NUM_APPLETS; i++) {
|
||
|
printf("%s_main,\n", applets[i].main);
|
||
|
}
|
||
|
puts("};");
|
||
|
|
||
|
#if ENABLE_FEATURE_INSTALLER || ENABLE_FEATURE_PREFER_APPLETS
|
||
|
puts("const uint32_t applet_nameofs[] = {");
|
||
|
#else
|
||
|
puts("const uint16_t applet_nameofs[] ALIGN2 = {");
|
||
|
#endif
|
||
|
for (i = 0; i < NUM_APPLETS; i++) {
|
||
|
printf("0x%08x,\n",
|
||
|
offset[i]
|
||
|
#if ENABLE_FEATURE_SUID
|
||
|
+ (applets[i].need_suid << 14) /* 2 bits */
|
||
|
#endif
|
||
|
#if ENABLE_FEATURE_INSTALLER
|
||
|
+ (applets[i].install_loc << 16) /* 3 bits */
|
||
|
#endif
|
||
|
#if ENABLE_FEATURE_PREFER_APPLETS
|
||
|
+ (applets[i].nofork << 19)
|
||
|
+ (applets[i].noexec << 20)
|
||
|
#endif
|
||
|
);
|
||
|
}
|
||
|
puts("};");
|
||
|
|
||
|
return 0;
|
||
|
}
|