LXR toybox/lib/help.c

   1// Function to display help text
   2
   3#include "toys.h"
   4
   5#include "generated/help.h"
   6
   7#undef NEWTOY
   8#undef OLDTOY
   9#define NEWTOY(name,opt,flags) HELP_##name "\0"
  10#if CFG_TOYBOX
  11#define OLDTOY(name,oldname,flags) "\xff" #oldname "\0"
  12#else
  13#define OLDTOY(name, oldname, flags) HELP_##oldname "\0"
  14#endif
  15static char *help_data =
  16#include "generated/newtoys.h"
  17;
  18
  19void show_help(FILE *out)
  20{
  21  int i = toys.which-toy_list;
  22  char *s;
  23
  24  if (CFG_TOYBOX_HELP) {
  25    for (;;) {
  26      s = help_data;
  27      while (i--) s += strlen(s) + 1;
  28      // If it's an alias, restart search for real name
  29      if (*s != 255) break;
  30      i = toy_find(++s)-toy_list;
  31    }
  32
  33    fprintf(out, "%s\n", s);
  34  }
  35}
  36