diff options
Diffstat (limited to 'programs/ranbits')
| -rw-r--r-- | programs/ranbits/.cvsignore | 1 | ||||
| -rw-r--r-- | programs/ranbits/Makefile | 39 | ||||
| -rw-r--r-- | programs/ranbits/ranbits.8 | 77 | ||||
| -rw-r--r-- | programs/ranbits/ranbits.c | 146 |
4 files changed, 0 insertions, 263 deletions
diff --git a/programs/ranbits/.cvsignore b/programs/ranbits/.cvsignore deleted file mode 100644 index 910103faa..000000000 --- a/programs/ranbits/.cvsignore +++ /dev/null @@ -1 +0,0 @@ -ranbits diff --git a/programs/ranbits/Makefile b/programs/ranbits/Makefile deleted file mode 100644 index 558318e8e..000000000 --- a/programs/ranbits/Makefile +++ /dev/null @@ -1,39 +0,0 @@ -# Makefile for miscelaneous programs -# Copyright (C) 2002 Michael Richardson <mcr@freeswan.org> -# -# This program is free software; you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the -# Free Software Foundation; either version 2 of the License, or (at your -# option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -# for more details. -# -# RCSID $Id: Makefile,v 1.1 2004/03/15 20:35:30 as Exp $ - -FREESWANSRCDIR=../.. -include ${FREESWANSRCDIR}/Makefile.inc - -PROGRAM=ranbits -LIBS=${FREESWANLIB} - -include ../Makefile.program - -# -# $Log: Makefile,v $ -# Revision 1.1 2004/03/15 20:35:30 as -# added files from freeswan-2.04-x509-1.5.3 -# -# Revision 1.2 2002/06/02 21:51:41 mcr -# changed TOPDIR->FREESWANSRCDIR in all Makefiles. -# (note that linux/net/ipsec/Makefile uses TOPDIR because this is the -# kernel sense.) -# -# Revision 1.1 2002/04/24 07:55:32 mcr -# #include patches and Makefiles for post-reorg compilation. -# -# -# - diff --git a/programs/ranbits/ranbits.8 b/programs/ranbits/ranbits.8 deleted file mode 100644 index 5a99a088f..000000000 --- a/programs/ranbits/ranbits.8 +++ /dev/null @@ -1,77 +0,0 @@ -.TH IPSEC_RANBITS 8 "22 Aug 2000" -.\" RCSID $Id: ranbits.8,v 1.1 2004/03/15 20:35:30 as Exp $ -.SH NAME -ipsec ranbits \- generate random bits in ASCII form -.SH SYNOPSIS -.B ipsec -.B ranbits -[ -.B \-\-quick -] [ -.B \-\-continuous -] [ -.B \-\-bytes -] nbits -.SH DESCRIPTION -.I Ranbits -obtains -.I nbits -(rounded up to the nearest byte) -high-quality random bits from -.IR random (4), -and emits them on standard output as an ASCII string. -The default output format is -.IR datatot (3) -.B h -format: -lowercase hexadecimal with a -.B 0x -prefix and an underscore every 32 bits. -.PP -The -.B \-\-quick -option produces quick-and-dirty random bits: -instead of using the high-quality random bits from -.IR /dev/random , -which may take some time to supply the necessary bits if -.I nbits -is large, -.I ranbits -uses -.IR /dev/urandom , -which yields prompt results but lower-quality randomness. -.PP -The -.B \-\-continuous -option uses -.IR datatot (3) -.B x -output format, like -.B h -but without the underscores. -.PP -The -.B \-\-bytes -option causes -.I nbits -to be interpreted as a byte count rather than a bit count. -.SH FILES -/dev/random, /dev/urandom -.SH SEE ALSO -ipsec_datatot(3), random(4) -.SH HISTORY -Written for the Linux FreeS/WAN project -<http://www.freeswan.org> -by Henry Spencer. -.SH BUGS -There is an internal limit on -.IR nbits , -currently 20000. -.PP -Without -.BR \-\-quick , -.IR ranbits 's -run time is difficult to predict. -A request for a large number of bits, -at a time when the system's entropy pool is low on randomness, -may take quite a while to satisfy. diff --git a/programs/ranbits/ranbits.c b/programs/ranbits/ranbits.c deleted file mode 100644 index 7b9a0f76e..000000000 --- a/programs/ranbits/ranbits.c +++ /dev/null @@ -1,146 +0,0 @@ -/* - * random bit generation for scripts, control files, etc. - * Copyright (C) 1998, 1999, 2000 Henry Spencer. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - * - * RCSID $Id: ranbits.c,v 1.1 2004/03/15 20:35:30 as Exp $ - */ - -#include <sys/types.h> -#include <sys/stat.h> -#include <stdio.h> -#include <limits.h> -#include <errno.h> -#include <string.h> -#include <stdlib.h> -#include <unistd.h> -#include <getopt.h> -#include <fcntl.h> -#include <netinet/in.h> -#include <freeswan.h> - -#ifndef DEVICE -#define DEVICE "/dev/random" -#endif -#ifndef QDEVICE -#define QDEVICE "/dev/urandom" -#endif -#ifndef MAXBITS -#define MAXBITS 20000 -#endif - -char usage[] = "Usage: ranbits [--quick] [--continuous] [--bytes] nbits"; -struct option opts[] = { - {"quick", 0, NULL, 'q',}, - {"continuous", 0, NULL, 'c',}, - {"bytes", 0, NULL, 'b',}, - {"help", 0, NULL, 'h',}, - {"version", 0, NULL, 'v',}, - {0, 0, NULL, 0,} -}; -int quick = 0; /* quick and dirty? */ -char format = 'h'; /* datatot() format code */ -int isbytes = 0; /* byte count rather than bits? */ - -char me[] = "ipsec ranbits"; /* for messages */ - -char buf[MAXBITS/CHAR_BIT]; -char outbuf[3*sizeof(buf)]; - -int main(int argc, char *argv[]) -{ - int opt; - extern int optind; - int errflg = 0; - int nbits; - size_t nbytes; - char *devname; - int dev; - size_t ndone; - size_t nneeded; - ssize_t got; - - while ((opt = getopt_long(argc, argv, "", opts, NULL)) != EOF) - switch (opt) { - case 'q': /* quick and dirty randomness */ - quick = 1; - break; - case 'c': /* continuous hex, no underscores */ - format = 'x'; - break; - case 'b': /* byte count, not bit count */ - isbytes = 1; - break; - case 'h': /* help */ - printf("%s\n", usage); - exit(0); - break; - case 'v': /* version */ - printf("%s %s\n", me, ipsec_version_code()); - exit(0); - break; - case '?': - default: - errflg = 1; - break; - } - if (errflg || optind != argc-1) { - fprintf(stderr, "%s\n", usage); - exit(2); - } - - nbits = atoi(argv[optind]); - if (isbytes) - nbits *= CHAR_BIT; - if (nbits <= 0) { - fprintf(stderr, "%s: invalid bit count (%d)\n", me, nbits); - exit(1); - } - if (nbits > MAXBITS) { - fprintf(stderr, "%s: overlarge bit count (max %d)\n", me, - MAXBITS); - exit(1); - } - nbytes = (size_t)(nbits + CHAR_BIT - 1) / CHAR_BIT; - - devname = (quick) ? QDEVICE : DEVICE; - dev = open(devname, 0); - if (dev < 0) { - fprintf(stderr, "%s: could not open %s (%s)\n", me, - devname, strerror(errno)); - exit(1); - } - - ndone = 0; - while (ndone < nbytes) { - got = read(dev, buf + ndone, nbytes - ndone); - if (got < 0) { - fprintf(stderr, "%s: read error on %s (%s)\n", me, - devname, strerror(errno)); - exit(1); - } - if (got == 0) { - fprintf(stderr, "%s: eof on %s!?!\n", me, devname); - exit(1); - } - ndone += got; - } - - nneeded = datatot(buf, nbytes, format, outbuf, sizeof(outbuf)); - if (nneeded > sizeof(outbuf)) { - fprintf(stderr, "%s: buffer overflow (need %ld bytes)?!?\n", - me, (long)nneeded); - exit(1); - } - printf("%s\n", outbuf); - exit(0); -} |