md5: Create md5sum, etc compatible programs
On Linux, there's a similar set of programs to ours, but that end in the letters 'sum'. These act basically like FreeBSD versions run with the -r option. Add code so that when the program ends in 'sum' you get the linux -r behavior. This is enough to make most things that use sha*sum work correctly (the -c / --check options, as well as the long args are not implemented). When running with the -sum programs, ignore -t instead of running internal speed tests and make -c an error. Reviewed by: sef, and kp and allanjude (earlier version) Relnotes: yes Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D30309
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Warner Losh
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@ -4,27 +4,49 @@
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PACKAGE=runtime
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PROG= md5
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LINKS= ${BINDIR}/md5 ${BINDIR}/rmd160 \
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LINKS= ${BINDIR}/md5 ${BINDIR}/md5sum \
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${BINDIR}/md5 ${BINDIR}/rmd160 \
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${BINDIR}/md5 ${BINDIR}/rmd160sum \
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${BINDIR}/md5 ${BINDIR}/sha1 \
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${BINDIR}/md5 ${BINDIR}/sha1sum \
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${BINDIR}/md5 ${BINDIR}/sha224 \
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${BINDIR}/md5 ${BINDIR}/sha224sum \
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${BINDIR}/md5 ${BINDIR}/sha256 \
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${BINDIR}/md5 ${BINDIR}/sha256sum \
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${BINDIR}/md5 ${BINDIR}/sha384 \
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${BINDIR}/md5 ${BINDIR}/sha384sum \
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${BINDIR}/md5 ${BINDIR}/sha512 \
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${BINDIR}/md5 ${BINDIR}/sha512sum \
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${BINDIR}/md5 ${BINDIR}/sha512t256 \
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${BINDIR}/md5 ${BINDIR}/sha512t256sum \
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${BINDIR}/md5 ${BINDIR}/skein256 \
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${BINDIR}/md5 ${BINDIR}/skein256sum \
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${BINDIR}/md5 ${BINDIR}/skein512 \
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${BINDIR}/md5 ${BINDIR}/skein1024
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${BINDIR}/md5 ${BINDIR}/skein512sum \
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${BINDIR}/md5 ${BINDIR}/skein1024 \
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${BINDIR}/md5 ${BINDIR}/skein1024sum
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MLINKS= md5.1 rmd160.1 \
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MLINKS= md5.1 md5sum.1 \
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md5.1 rmd160.1 \
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md5.1 rmd160sum.1 \
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md5.1 sha1.1 \
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md5.1 sha1sum.1 \
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md5.1 sha224.1 \
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md5.1 sha224sum.1 \
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md5.1 sha256.1 \
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md5.1 sha256sum.1 \
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md5.1 sha384.1 \
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md5.1 sha384sum.1 \
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md5.1 sha512.1 \
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md5.1 sha512sum.1 \
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md5.1 sha512t256.1 \
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md5.1 sha512t256sum.1 \
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md5.1 skein256.1 \
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md5.1 skein256sum.1 \
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md5.1 skein512.1 \
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md5.1 skein1024.1
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md5.1 skein512sum.1 \
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md5.1 skein1024.1 \
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md5.1 skein1024sum.1
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LIBADD= md
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@ -1,10 +1,12 @@
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.\" $FreeBSD$
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.Dd June 19, 2020
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.Dd May 19, 2021
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.Dt MD5 1
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.Os
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.Sh NAME
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.Nm md5 , sha1 , sha224 , sha256 , sha384 , sha512 , sha512t256 , rmd160 ,
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.Nm skein256 , skein512 , skein1024
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.Nm skein256 , skein512 , skein1024 ,
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.Nm md5sum , sha1sum , sha224sum , sha256sum , sha384sum , sha512sum ,
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.Nm sha512t256sum , rmd160sum , skein256sum , skein512sum , skein1024sum
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.Nd calculate a message-digest fingerprint (checksum) for a file
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.Sh SYNOPSIS
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.Nm
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@ -26,6 +28,15 @@ output a
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or
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.Dq message digest
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of the input.
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The
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.Nm md5sum , sha1sum , sha224sum , sha256sum , sha384sum , sha512sum ,
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.Nm sha512t256sum , rmd160sum , skein256sum , skein512sum ,
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and
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.Nm skein1024sum
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utilities do the same, but default to the reversed format of
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the
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.Fl r
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flag.
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It is conjectured that it is computationally infeasible to
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produce two messages having the same message digest, or to produce any
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message having a given prespecified target message digest.
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@ -59,9 +70,18 @@ precede any files named on the command line.
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The hexadecimal checksum of each file listed on the command line is printed
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after the options are processed.
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.Bl -tag -width indent
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.It Fl b
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Ignored for compatibility with the coreutils
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.Nm -sum
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programs.
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.It Fl c Ar string
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Compare the digest of the file against this string.
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.Pq Note that this option is not yet useful if multiple files are specified.
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This option causes an error in for the
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.Nm -sum
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programs because it check the checksums listed in a file for the coreutils
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.Nm -sum
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programs that is not yet implemented.
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.It Fl s Ar string
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Print a checksum of the given
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.Ar string .
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@ -81,6 +101,9 @@ when combined with the
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options.
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.It Fl t
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Run a built-in time trial.
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For the
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.Nm -sum
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versions, this is a nop for compatibility with coreutils.
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.It Fl x
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Run a built-in test script.
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.El
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@ -171,6 +194,13 @@ Secure Hash Standard (SHS):
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.Pp
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The RIPEMD-160 page:
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.Pa http://www.esat.kuleuven.ac.be/~bosselae/ripemd160.html .
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.Sh BUGS
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All of the utilities that end in
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.Sq sum
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are intended to be compatible with the GNU coreutils programs.
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However, the long arguments and the
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.Fl -check
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functionality are not provided.
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.Sh ACKNOWLEDGMENTS
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This program is placed in the public domain for free general use by
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RSA Data Security.
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@ -177,13 +177,32 @@ main(int argc, char *argv[])
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char buf[HEX_DIGEST_LENGTH];
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size_t len;
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unsigned digest;
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const char* progname;
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char *progname;
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bool gnu_emu = false;
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if ((progname = strrchr(argv[0], '/')) == NULL)
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progname = argv[0];
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else
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progname++;
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/*
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* GNU coreutils has a number of programs named *sum. These produce
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* similar results to the BSD version, but in a different format,
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* similar to BSD's -r flag. We install links to this program with
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* ending 'sum' to provide this compatibility. Check here to see if the
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* name of the program ends in 'sum', set the flag and drop the 'sum' so
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* the digest lookup works. Also, make -t a nop when running in this mode
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* since that means 'text file' there (though it's a nop in coreutils
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* on unix-like systems). The -c flag conflicts, so it's just disabled
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* in this mode (though in the future it might be implemented).
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*/
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len = strlen(progname);
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if (len > 3 && strcmp(progname + len - 3, "sum") == 0) {
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progname[len - 3] = '\0';
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rflag = 1;
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gnu_emu = true;
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}
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for (digest = 0; digest < sizeof(Algorithm)/sizeof(*Algorithm); digest++)
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if (strcasecmp(Algorithm[digest].progname, progname) == 0)
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break;
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@ -195,9 +214,13 @@ main(int argc, char *argv[])
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checkAgainst = NULL;
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checksFailed = 0;
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skip = 0;
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while ((ch = getopt(argc, argv, "c:pqrs:tx")) != -1)
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while ((ch = getopt(argc, argv, "bc:pqrs:tx")) != -1)
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switch (ch) {
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case 'b':
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break;
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case 'c':
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if (gnu_emu)
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errx(1, "-c check option not supported");
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checkAgainst = optarg;
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break;
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case 'p':
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@ -214,8 +237,10 @@ main(int argc, char *argv[])
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string = optarg;
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break;
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case 't':
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MDTimeTrial(&Algorithm[digest]);
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skip = 1;
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if (!gnu_emu) {
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MDTimeTrial(&Algorithm[digest]);
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skip = 1;
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} /* else: text mode is a nop */
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break;
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case 'x':
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MDTestSuite(&Algorithm[digest]);
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@ -348,7 +373,7 @@ MDTimeTrial(const Algorithm_t *alg)
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printf(" done\n");
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printf("Digest = %s", p);
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printf("\nTime = %f seconds\n", seconds);
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printf("Speed = %f MiB/second\n", (float) TEST_BLOCK_LEN *
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printf("Speed = %f MiB/second\n", (float) TEST_BLOCK_LEN *
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(float) TEST_BLOCK_COUNT / seconds / (1 << 20));
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}
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/*
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