miscutils/bbconfig.c

   1 /* vi: set sw=4 ts=4: */
   2 /* This file was released into the public domain by Paul Fox.
   3  */
   4 #include "libbb.h"
   5 #include "bbconfigopts.h"
   6 #if ENABLE_FEATURE_COMPRESS_BBCONFIG
   7 # include "unarchive.h"
   8 # include "bbconfigopts_bz2.h"
   9 #endif
  10
  11 int bbconfig_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
  12 int bbconfig_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
  13 {
  14 #if ENABLE_FEATURE_COMPRESS_BBCONFIG
  15         bunzip_data *bd;
  16         int i = start_bunzip(&bd,
  17                         /* src_fd: */ -1,
  18                         /* inbuf:  */ (void *)bbconfig_config_bz2,
  19                         /* len:    */ sizeof(bbconfig_config_bz2));
  20         /* read_bunzip can longjmp to start_bunzip, and ultimately
  21          * end up here with i != 0 on read data errors! Not trivial */
  22         if (!i) {
  23                 /* Cannot use xmalloc: will leak bd in NOFORK case! */
  24                 char *outbuf = malloc_or_warn(sizeof(bbconfig_config));
  25                 if (outbuf) {
  26                         read_bunzip(bd, outbuf, sizeof(bbconfig_config));
  27                         full_write1_str(outbuf);
  28                 }
  29         }
  30 #else
  31         full_write1_str(bbconfig_config);
  32 #endif
  33         return 0;
  34 }