Remove obsolete sum
This commit is contained in:
Thomas Veerman
parent
d9f4f71916
commit
c248e23d93
6 changed files with 3 additions and 197 deletions
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@ -24,7 +24,7 @@ SUBDIR= add_route arp ash at backup banner basename btrace cal \
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reboot remsync rev rget rlogin \
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rotate rsh rshd service setup shar acksize \
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sleep slip sort spell split sprofalyze sprofdiff srccrc \
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stty sum svclog svrctl swifi sync synctree sysenv \
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stty svclog svrctl swifi sync synctree sysenv \
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syslogd tail tcpd tcpdp tcpstat tee telnet \
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telnetd term termcap tget time touch tr \
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truncate tsort tty udpstat umount uname unexpand \
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@ -1,4 +0,0 @@
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PROG= sum
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MAN=
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.include <bsd.prog.mk>
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@ -1,121 +0,0 @@
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/* sum - checksum a file Author: Martin C. Atkins */
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/*
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* This program was written by:
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* Martin C. Atkins,
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* University of York,
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* Heslington,
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* York. Y01 5DD
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* England
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* and is released into the public domain, on the condition
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* that this comment is always included without alteration.
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*/
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#include <sys/types.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <minix/minlib.h>
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#include <stdio.h>
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#define BUFFER_SIZE (512)
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int rc = 0;
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char *defargv[] = {"-", 0};
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int main(int argc, char **argv);
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void error(char *s, char *f);
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void sum(int fd, char *fname);
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void putd(int number, int fw, int zeros);
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int main(argc, argv)
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int argc;
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char *argv[];
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{
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register int fd;
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if (*++argv == 0) argv = defargv;
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for (; *argv; argv++) {
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if (argv[0][0] == '-' && argv[0][1] == '\0')
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fd = 0;
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else
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fd = open(*argv, O_RDONLY);
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if (fd == -1) {
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error("can't open ", *argv);
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rc = 1;
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continue;
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}
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sum(fd, (argc > 2) ? *argv : (char *) 0);
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if (fd != 0) close(fd);
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}
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return(rc);
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}
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void error(s, f)
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char *s, *f;
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{
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std_err("sum: ");
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std_err(s);
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if (f) std_err(f);
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std_err("\n");
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}
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void sum(fd, fname)
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int fd;
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char *fname;
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{
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char buf[BUFFER_SIZE];
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register int i, n;
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long size = 0;
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unsigned crc = 0;
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unsigned tmp, blks;
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while ((n = read(fd, buf, BUFFER_SIZE)) > 0) {
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for (i = 0; i < n; i++) {
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crc = (crc >> 1) + ((crc & 1) ? 0x8000 : 0);
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tmp = buf[i] & 0377;
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crc += tmp;
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crc &= 0xffff;
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size++;
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}
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}
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if (n < 0) {
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if (fname)
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error("read error on ", fname);
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else
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error("read error", (char *) 0);
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rc = 1;
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return;
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}
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putd(crc, 5, 1);
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blks = (size + (long) BUFFER_SIZE - 1L) / (long) BUFFER_SIZE;
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putd(blks, 6, 0);
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if (fname) printf(" %s", fname);
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printf("\n");
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}
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void putd(number, fw, zeros)
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int number, fw, zeros;
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{
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/* Put a decimal number, in a field width, to stdout. */
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char buf[10];
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int n;
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unsigned num;
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num = (unsigned) number;
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for (n = 0; n < fw; n++) {
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if (num || n == 0) {
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buf[fw - n - 1] = '0' + num % 10;
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num /= 10;
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} else
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buf[fw - n - 1] = zeros ? '0' : ' ';
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}
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buf[fw] = 0;
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printf("%s", buf);
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}
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@ -1,6 +1,6 @@
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MAN= ash.1 at.1 banner.1 basename.1 \
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bsfilt.1 cal.1 cawf.1 chgrp.1 \
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chmod.1 cksum.1 clear.1 cmp.1 comm.1 compress.1 \
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chmod.1 clear.1 cmp.1 comm.1 compress.1 \
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cp.1 crc.1 crontab.1 ctags.1 dd.1 \
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df.1 dhrystone.1 dosdir.1 dosread.1 doswrite.1 \
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dumpcore.1 echo.1 eject.1 elvis.1 elvrec.1 \
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@ -16,7 +16,7 @@ MAN= ash.1 at.1 banner.1 basename.1 \
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profile.1 ps.1 pwd.1 rcp.1 recwave.1 \
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ref.1 remsync.1 rget.1 rlogin.1 rsh.1 rz.1 \
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shar.1 acksize.1 sleep.1 sort.1 spell.1 \
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split.1 stty.1 sum.1 svc.1 svrctl.1 \
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split.1 stty.1 svc.1 svrctl.1 \
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synctree.1 sysenv.1 sz.1 tail.1 tee.1 telnet.1 template.1 \
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term.1 termcap.1 tget.1 time.1 tr.1 true.1 \
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truncate.1 tsort.1 tty.1 umount.1 uname.1 unexpand.1 \
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@ -1,38 +0,0 @@
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.TH CKSUM 1
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.SH NAME
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cksum \- display file checksum and size
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.SH SYNOPSIS
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\fBcksum \fR[\fIfile\fR ...]\fR
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.br
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.de FL
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.TP
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\\fB\\$1\\fR
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\\$2
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..
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.de EX
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.TP 20
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\\fB\\$1\\fR
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# \\$2
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..
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.SH EXAMPLES
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.TP 20
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.B cksum
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# Display CRC and size of \fIstdin\fR
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.TP 20
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.B cksum *.c
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# Display CRC and size of \fI.c\fP files
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.SH DESCRIPTION
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.PP
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.I Cksum
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calculates and writes to standard output the 32-bits CRC of the input
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.I files ,
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or of stdin if no
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.I files
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were specified. The size in bytes of each
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.I file
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will be displayed after a space. The name of each
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.I file
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will be displayed after another space.
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.SH "SEE ALSO"
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.BR crc (1),
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.BR sum (1).
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@ -1,31 +0,0 @@
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.TH SUM 1
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.SH NAME
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sum \- compute the checksum and block count of a file
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.SH SYNOPSIS
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\fBsum \fIfile\fR
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.br
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.de FL
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.TP
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\\fB\\$1\\fR
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\\$2
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..
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.de EX
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.TP 20
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\\fB\\$1\\fR
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# \\$2
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..
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.SH EXAMPLES
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.TP 20
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.B sum /user/ast/xyz
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# Checksum \fI/user/ast/xyz
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.SH DESCRIPTION
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.PP
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.I Sum
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computes the checksum of one or more files.
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It is most often used to see if a file copied from another machine has
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been correctly received.
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This program works best when both machines use the same checksum algorithm.
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See also \fIcrc\fR.
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.SH "SEE ALSO"
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.BR cksum (1),
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.BR crc (1).
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