cryptutils

Revert "cksum: Add POSIX cksum"

This reverts commit 6821095fdc8cf01b88a9db4f8ec5af44378bfab9.

Diffstat

4 files changed, 0 insertions, 201 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5532560..41c6ce4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,5 +15,4 @@ INCLUDE_DIRECTORIES(${PROJECT_SOURCE_DIR}/ext/libokv/include)
 
 LINK_LIBRARIES(libokv.a)
 
-ADD_EXECUTABLE(cksum ${PROJECT_SOURCE_DIR}/src/cksum.c)
 ADD_EXECUTABLE(crc32 ${PROJECT_SOURCE_DIR}/src/crc32.c)
diff --git a/README.md b/README.md
index 5e08fc4..977151c 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,6 @@ OMKOV cryptutils implements many cryptographic utilities.
 
 | Utility          | Description                              | Standard |
 | ---------------- | ---------------------------------------- | -------- |
-| cksum            | Write file checksums and sizes           | POSIX    |
 | crc32            | Compute the CRC-32 for a file            |          |
 
 ## Build Instructions
diff --git a/man/cksum.1 b/man/cksum.1
deleted file mode 100644
index e7ab7a4..0000000
--- a/man/cksum.1
+++ /dev/null
@@ -1,40 +0,0 @@
-.TH CKSUM 1 2020-07-25 "OMKOV cryptutils" "General Commands Manual"
-.SH NAME
-cksum \(em write file checksums and sizes
-.SH SYNOPSYS
-\fBcksum\fR [\fIfile\fR...]
-.SH DESCRIPTION
-Compute and print a CRC for each input file, as well as the file size in bytes.
-The CRC used is based on the polynomial used for CRC error checking in the
-ISO/IEC 8802-3:1996 Ethernet standard.
-.SH OPTIONS
-The following options are supported:
-.TP
-.B --help
-Display help information.
-.TP
-.B --version
-Display version information.
-.SH OPERANDS
-The following operand is supported:
-.TP
-.I file
-A pathname of an input file. If no \fIfile\fR operands are specified, or
-\fIfile\fR is a '\fB-\fR', \fIcksum\fR will read from standard input.
-.SH EXIT STATUS
-The following exit values will be returned:
-.TP
-\ 0
-All files were processed successfully.
-.TP
->0
-An error occurred.
-.SH STANDARDS
-The \fIcksum\fR utility is compliant with the IEEE Std 1003.2-1992 ("POSIX.2")
-specification.
-.SH COPYRIGHT
-.nf
-Copyright (C) 2020, Jakob Wakeling
-All rights reserved.
-OMKOV Permissive Licence (https://www.omkov.net/OLPE)
-.fi
diff --git a/src/cksum.c b/src/cksum.c
deleted file mode 100644
index 4bc5732..0000000
--- a/src/cksum.c
+++ /dev/null
@@ -1,159 +0,0 @@
-// cksum.c, version 1.0.3
-// OMKOV cryptutils implementation of POSIX cksum
-// Copyright (C) 2020, Jakob Wakeling
-// All rights reserved.
-
-/*
-OMKOV Permissive Licence, version 1.0
-
-Copyright (C) 2020, Jakob Wakeling
-All rights reserved.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal with
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-the Software, and to permit persons to whom the Software is furnished to do so,
-subject to the following conditions:
-
-* Redistributions of source code must retain the above copyright notice, this
-  list of conditions and the following disclaimers.
-* Redistributions in binary form must reproduce the above copyright notice, this
-  list of conditions and the following disclaimers in the documentation and/or
-  other materials provided with the distribution.
-* Neither the names of the copyright holders, nor the names of its contributors
-  may be used to endorse or promote products derived from this Software without
-  specific prior written permission.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT
-HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE SOFTWARE.
-*/
-
-#include "optget.h"
-
-#include <error.h>
-
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdio.h>
-
-#define VERSION "1.0.3"
-
-static const uint32_t CRC[] = {
-	0x00000000, 0x04c11db7, 0x09823b6e, 0x0d4326d9, 0x130476dc, 0x17c56b6b,
-	0x1a864db2, 0x1e475005, 0x2608edb8, 0x22c9f00f, 0x2f8ad6d6, 0x2b4bcb61,
-	0x350c9b64, 0x31cd86d3, 0x3c8ea00a, 0x384fbdbd, 0x4c11db70, 0x48d0c6c7,
-	0x4593e01e, 0x4152fda9, 0x5f15adac, 0x5bd4b01b, 0x569796c2, 0x52568b75,
-	0x6a1936c8, 0x6ed82b7f, 0x639b0da6, 0x675a1011, 0x791d4014, 0x7ddc5da3,
-	0x709f7b7a, 0x745e66cd, 0x9823b6e0, 0x9ce2ab57, 0x91a18d8e, 0x95609039,
-	0x8b27c03c, 0x8fe6dd8b, 0x82a5fb52, 0x8664e6e5, 0xbe2b5b58, 0xbaea46ef,
-	0xb7a96036, 0xb3687d81, 0xad2f2d84, 0xa9ee3033, 0xa4ad16ea, 0xa06c0b5d,
-	0xd4326d90, 0xd0f37027, 0xddb056fe, 0xd9714b49, 0xc7361b4c, 0xc3f706fb,
-	0xceb42022, 0xca753d95, 0xf23a8028, 0xf6fb9d9f, 0xfbb8bb46, 0xff79a6f1,
-	0xe13ef6f4, 0xe5ffeb43, 0xe8bccd9a, 0xec7dd02d, 0x34867077, 0x30476dc0,
-	0x3d044b19, 0x39c556ae, 0x278206ab, 0x23431b1c, 0x2e003dc5, 0x2ac12072,
-	0x128e9dcf, 0x164f8078, 0x1b0ca6a1, 0x1fcdbb16, 0x018aeb13, 0x054bf6a4,
-	0x0808d07d, 0x0cc9cdca, 0x7897ab07, 0x7c56b6b0, 0x71159069, 0x75d48dde,
-	0x6b93dddb, 0x6f52c06c, 0x6211e6b5, 0x66d0fb02, 0x5e9f46bf, 0x5a5e5b08,
-	0x571d7dd1, 0x53dc6066, 0x4d9b3063, 0x495a2dd4, 0x44190b0d, 0x40d816ba,
-	0xaca5c697, 0xa864db20, 0xa527fdf9, 0xa1e6e04e, 0xbfa1b04b, 0xbb60adfc,
-	0xb6238b25, 0xb2e29692, 0x8aad2b2f, 0x8e6c3698, 0x832f1041, 0x87ee0df6,
-	0x99a95df3, 0x9d684044, 0x902b669d, 0x94ea7b2a, 0xe0b41de7, 0xe4750050,
-	0xe9362689, 0xedf73b3e, 0xf3b06b3b, 0xf771768c, 0xfa325055, 0xfef34de2,
-	0xc6bcf05f, 0xc27dede8, 0xcf3ecb31, 0xcbffd686, 0xd5b88683, 0xd1799b34,
-	0xdc3abded, 0xd8fba05a, 0x690ce0ee, 0x6dcdfd59, 0x608edb80, 0x644fc637,
-	0x7a089632, 0x7ec98b85, 0x738aad5c, 0x774bb0eb, 0x4f040d56, 0x4bc510e1,
-	0x46863638, 0x42472b8f, 0x5c007b8a, 0x58c1663d, 0x558240e4, 0x51435d53,
-	0x251d3b9e, 0x21dc2629, 0x2c9f00f0, 0x285e1d47, 0x36194d42, 0x32d850f5,
-	0x3f9b762c, 0x3b5a6b9b, 0x0315d626, 0x07d4cb91, 0x0a97ed48, 0x0e56f0ff,
-	0x1011a0fa, 0x14d0bd4d, 0x19939b94, 0x1d528623, 0xf12f560e, 0xf5ee4bb9,
-	0xf8ad6d60, 0xfc6c70d7, 0xe22b20d2, 0xe6ea3d65, 0xeba91bbc, 0xef68060b,
-	0xd727bbb6, 0xd3e6a601, 0xdea580d8, 0xda649d6f, 0xc423cd6a, 0xc0e2d0dd,
-	0xcda1f604, 0xc960ebb3, 0xbd3e8d7e, 0xb9ff90c9, 0xb4bcb610, 0xb07daba7,
-	0xae3afba2, 0xaafbe615, 0xa7b8c0cc, 0xa379dd7b, 0x9b3660c6, 0x9ff77d71,
-	0x92b45ba8, 0x9675461f, 0x8832161a, 0x8cf30bad, 0x81b02d74, 0x857130c3,
-	0x5d8a9099, 0x594b8d2e, 0x5408abf7, 0x50c9b640, 0x4e8ee645, 0x4a4ffbf2,
-	0x470cdd2b, 0x43cdc09c, 0x7b827d21, 0x7f436096, 0x7200464f, 0x76c15bf8,
-	0x68860bfd, 0x6c47164a, 0x61043093, 0x65c52d24, 0x119b4be9, 0x155a565e,
-	0x18197087, 0x1cd86d30, 0x029f3d35, 0x065e2082, 0x0b1d065b, 0x0fdc1bec,
-	0x3793a651, 0x3352bbe6, 0x3e119d3f, 0x3ad08088, 0x2497d08d, 0x2056cd3a,
-	0x2d15ebe3, 0x29d4f654, 0xc5a92679, 0xc1683bce, 0xcc2b1d17, 0xc8ea00a0,
-	0xd6ad50a5, 0xd26c4d12, 0xdf2f6bcb, 0xdbee767c, 0xe3a1cbc1, 0xe760d676,
-	0xea23f0af, 0xeee2ed18, 0xf0a5bd1d, 0xf464a0aa, 0xf9278673, 0xfde69bc4,
-	0x89b8fd09, 0x8d79e0be, 0x803ac667, 0x84fbdbd0, 0x9abc8bd5, 0x9e7d9662,
-	0x933eb0bb, 0x97ffad0c, 0xafb010b1, 0xab710d06, 0xa6322bdf, 0xa2f33668,
-	0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4
-};
-
-static inline int cksum(const char *file);
-
-static void help(void);
-static void version(void);
-
-int main(int ac, char *av[]) { A0 = av[0];
-	lop_t lops[] = {
-		{ "help",    ARG_NUL, 256 },
-		{ "version", ARG_NUL, 257 },
-		{ NULL, 0, 0 }
-	};
-	
-	opt_t opt = OPTGET_INIT; opt.str = ""; opt.lops = lops; int o;
-	while((o = optget(&opt, av, 1)) != -1) switch (o) {
-	case 256: { help(); return 0; }
-	case 257: { version(); return 0; }
-	default: { return 1; }
-	}
-	
-	bool warned = false;
-	
-	if (opt.ind == ac) { cksum(NULL); }
-	else for (char **p = &av[opt.ind]; *p; ++p) if (cksum(*p)) {
-		warn("%s: %s", *p, serr()); warned = true;
-	}
-	
-	return warned;
-}
-
-static inline int cksum(const char *file) {
-	char stdbuf[BUFSIZ * 16]; FILE *fi;
-	register size_t fl = 0; register uint32_t crc = 0;
-	
-	if (!file || (file[0] == '-' && file[1] == 0)) { fi = stdin; }
-	else if (!(fi = fopen(file, "r"))) { return 1; }
-	
-	for (size_t c; (c = fread(stdbuf, 1, sizeof (stdbuf), fi)); fl += c) {
-		for (register size_t i = 0; i != c; ++i) {
-			crc = (crc << 8) ^ CRC[(crc >> 24) ^ (stdbuf[i] & 0xFF)];
-		}
-	}
-	
-	for (register size_t n = fl; n; n >>= 8) {
-		crc = (crc << 8) ^ CRC[(crc >> 24) ^ (n & 0xFF)];
-	} crc = ~crc;
-	
-	printf("%u %zu", crc, fl);
-	if (file) { printf(" %s", file); } fputc('\n', stdout);
-	
-	if (fi != stdin) { fclose(fi); } return 0;
-}
-
-static void help(void) {
-	puts("cksum - write file checksums and sizes\n");
-	puts("usage: cksum [file...]\n");
-	puts("options:");
-	puts("  --help     Display help information");
-	puts("  --version  Display version information");
-	return;
-}
-
-static void version() {
-	puts("OMKOV coreutils cksum, version " VERSION);
-	puts("Copyright (C) 2020, Jakob Wakeling");
-	puts("All rights reserved.");
-	puts("OMKOV Permissive Licence (https://www.omkov.net/OLPE)");
-	return;
-}