/* BFDGREP: binary filename/directory grep. **********************************
 * bfgrep.c/bfgrep, binary filename/directory grep. (from which exist)       *
 * for obtaining existing filename(s) or directory(s) used by a binary       *
 * executable.  argument 1 will be treated as a (binary) file, if none is    *
 * provided or the provided argument isn't accessable it will revert to      *
 * standard input.                                                           *
 *                                                                           *
 * EXAMPLES:                                                                 *
 *  # bfdgrep [filename] [...]                                               *
 *  # cat <filename> | bfdgrep                                               *
 *                                                                           *
 * DISPLAY:                                                                  *
 *  /path/file(location found:access): /path/file found.                     *
 *                                                                           *
 * COMMENTS:                                                                 *
 *  this program will only display with full valid paths (files and dirs).   *
 *  also, this program will not display information that is not used in a    *
 *  function.  for example, something mentioned in a printf() statement      *
 *  would not get displayed.                                                 *
 *                                                                           *
 * by: vade79 -> v9[v9@realhalo.org] -> realhalo.org.       (88l!271w!3208b) *
 *****************************************************************************/
#include <stdio.h>
#include <unistd.h>
#include <sys/stat.h>
#define MAX_PATHNAME 4096	/* maximum path storage. (max)               */
#define INPUT "/dev/stdin"	/* revert to this (input) if no file.        */
char id[]="$Id: bfdgrep.c,v 3.0 2001/03/24 01:11:36 EST vade79 Exp $";
char *file;
int main(int argc,char **argv) { 
 int i=0;
 if(argc>1){
  for(i=1;i<argc;i++){
   parse_file(argv[i]);
  }
 }
 else
  parse_file(INPUT);
}
int parse_file(char *fn){
 int i=0;
 int chr=0;
 long loc=0x0;
 char string[MAX_PATHNAME];
 char mode[5];
 struct stat mod;
 FILE *fd;
 if(!(fd=fopen(fn,"r")))
  printf("%s: failed opening file for reading.\n",fn);
 else{
  while((chr=fgetc(fd))!=EOF){
   if(isprint(chr)){
    string[i++]=chr;
    if(i>sizeof(string)){
     bzero(string,sizeof(string));
     i=0;
    }
   }
   else if(chr==0x0){
    if(strlen(string)>1&&!stat(string,&mod))
     if(string[0]==0x2f){
      bzero(mode,sizeof(mode));
      if(!access(string,F_OK)){
       sprintf(mode,"+");
       if(!access(string,R_OK))
        strcat(mode,"r");
       if(!access(string,W_OK))
        strcat(mode,"w");
       if(!access(string,X_OK))
        strcat(mode,"x");
      }
      else
       sprintf(mode,"-");
      fprintf(stderr,"%s(0x%lx:%s): %s\n",strcmp(fn,INPUT)?fn:"input",
      (loc-strlen(string)),mode,string);
     }
    bzero(string,sizeof(string));
    i=0;
   }
   else{
    bzero(string,sizeof(string));
    i=0;
   }
   loc++;
  }
  fclose(fd);
 }
}