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Current issue : #50 | Release date : 1997-04-09 | Editor : daemon9

Introduction	Phrack Staff
Phrack Loopback	Phrack Staff
Line Noise	various
Phrack Prophile on Aleph1	Phrack Staff
Linux TTY hijacking	halflife
Juggernaut	route
SNMP insecurities	Alhambra
Cracking NT Passwords	Nihil
SS7 Diverter plans	Mastermind
Skytel Paging and Voicemail	pbxPhreak
Hardwire Interfacing under Linux	Professor
PC Application Level Security	Sideshow Bob
DTMF signalling and decoding	Mr. Blue
DCO Operating System	mrnobody
Phrack World News	Alhambra
extract.c	Phrack Staff

Title : extract.c

Author : Phrack Staff

                                .oO Phrack 50 Oo.

                            Volume Seven, Issue Fifty

                                     16 of 16

                      extract.c by Phrack Staff and sirsyko


---------------------8<------------CUT-HERE----------->8---------------------
 
/*  extract.c by Phrack Staff and sirsyko 
 *
 *  Phrack Magazine, 1997 
 *
 *  Extracts textfiles from a specially tagged flatfile into a hierarchical 
 *  directory strcuture. Use to extract source code from any of the articles 
 *  in Phrack Magazine (first appeared in Phrack 50).
 *
 *  gcc -o extract extract.c
 *  
 *  ./extract filename   
 * 
 */   

 
#include <stdio.h>
#include <sys/stat.h>
#include <string.h>

int main(int argc, char **argv){ 

    char *s="<++> ",*e="<-->",b[256],*bp; 
    FILE *f,*o = NULL; 
    int l, n, i=0; 

    l = strlen(s); 
    n = strlen(e); 

    if(argc<2) {
        printf("Usage: %s <inputfile>\n",argv[0]);
        exit(1); 
    }

    if(! (f=fopen(argv[1], "r"))) {
        printf("Could not open input file.\n");
	exit(1);
    }

    while(fgets(b, 256, f)){ 

        if(!strncmp (b, s, l)){ 
	    b[strlen(b)-1] = '\0'; 

	    if((bp=strchr(b+l+1,'/')))
	        while (bp){ 
		    *bp='\0';
		    mkdir(b+l, 0700); 
		    *bp='/';
		    bp=strchr(bp+1,'/'); 
		}
	    if((o = fopen(b+l, "w"))) 
	        printf("- Extracting %s\n",b+l);
	    else {
		printf("Could not extract '%s'\n",b+l);
		exit(1);
	    }
	} 
        else if(!strncmp (b, e, n)){
	    if(o) fclose(o);
	    else {
	        printf("Error closing file.\n");
		exit(1);
	    }
        } 
        else if(o) {
            fputs(b, o);
            i++;
        }
    }
    if(!i) printf("No extraction tags found.\n");
    return(0);
}

---------------------8<------------CUT-HERE----------->8---------------------

EOF