Date: Wed, 19 May 2021 17:44:06 GMT From: Warner Losh <imp@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 086feed850c3 - main - md5: Create md5sum, etc compatible programs Message-ID: <202105191744.14JHi6fA008046@gitrepo.freebsd.org>
next in thread | raw e-mail | index | archive | help
The branch main has been updated by imp: URL: https://cgit.FreeBSD.org/src/commit/?id=086feed850c31c278f25c958b97992d024139896 commit 086feed850c31c278f25c958b97992d024139896 Author: Warner Losh <imp@FreeBSD.org> AuthorDate: 2021-05-19 17:26:20 +0000 Commit: Warner Losh <imp@FreeBSD.org> CommitDate: 2021-05-19 17:41:53 +0000 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 --- sbin/md5/Makefile | 30 ++++++++++++++++++++++++++---- sbin/md5/md5.1 | 34 ++++++++++++++++++++++++++++++++-- sbin/md5/md5.c | 35 ++++++++++++++++++++++++++++++----- 3 files changed, 88 insertions(+), 11 deletions(-) diff --git a/sbin/md5/Makefile b/sbin/md5/Makefile index dcbd94dcd381..b1e40713c219 100644 --- a/sbin/md5/Makefile +++ b/sbin/md5/Makefile @@ -4,27 +4,49 @@ PACKAGE=runtime PROG= md5 -LINKS= ${BINDIR}/md5 ${BINDIR}/rmd160 \ +LINKS= ${BINDIR}/md5 ${BINDIR}/md5sum \ + ${BINDIR}/md5 ${BINDIR}/rmd160 \ + ${BINDIR}/md5 ${BINDIR}/rmd160sum \ ${BINDIR}/md5 ${BINDIR}/sha1 \ + ${BINDIR}/md5 ${BINDIR}/sha1sum \ ${BINDIR}/md5 ${BINDIR}/sha224 \ + ${BINDIR}/md5 ${BINDIR}/sha224sum \ ${BINDIR}/md5 ${BINDIR}/sha256 \ + ${BINDIR}/md5 ${BINDIR}/sha256sum \ ${BINDIR}/md5 ${BINDIR}/sha384 \ + ${BINDIR}/md5 ${BINDIR}/sha384sum \ ${BINDIR}/md5 ${BINDIR}/sha512 \ + ${BINDIR}/md5 ${BINDIR}/sha512sum \ ${BINDIR}/md5 ${BINDIR}/sha512t256 \ + ${BINDIR}/md5 ${BINDIR}/sha512t256sum \ ${BINDIR}/md5 ${BINDIR}/skein256 \ + ${BINDIR}/md5 ${BINDIR}/skein256sum \ ${BINDIR}/md5 ${BINDIR}/skein512 \ - ${BINDIR}/md5 ${BINDIR}/skein1024 + ${BINDIR}/md5 ${BINDIR}/skein512sum \ + ${BINDIR}/md5 ${BINDIR}/skein1024 \ + ${BINDIR}/md5 ${BINDIR}/skein1024sum -MLINKS= md5.1 rmd160.1 \ +MLINKS= md5.1 md5sum.1 \ + md5.1 rmd160.1 \ + md5.1 rmd160sum.1 \ md5.1 sha1.1 \ + md5.1 sha1sum.1 \ md5.1 sha224.1 \ + md5.1 sha224sum.1 \ md5.1 sha256.1 \ + md5.1 sha256sum.1 \ md5.1 sha384.1 \ + md5.1 sha384sum.1 \ md5.1 sha512.1 \ + md5.1 sha512sum.1 \ md5.1 sha512t256.1 \ + md5.1 sha512t256sum.1 \ md5.1 skein256.1 \ + md5.1 skein256sum.1 \ md5.1 skein512.1 \ - md5.1 skein1024.1 + md5.1 skein512sum.1 \ + md5.1 skein1024.1 \ + md5.1 skein1024sum.1 LIBADD= md diff --git a/sbin/md5/md5.1 b/sbin/md5/md5.1 index e6b29233c399..c154c4788f8d 100644 --- a/sbin/md5/md5.1 +++ b/sbin/md5/md5.1 @@ -1,10 +1,12 @@ .\" $FreeBSD$ -.Dd June 19, 2020 +.Dd May 19, 2021 .Dt MD5 1 .Os .Sh NAME .Nm md5 , sha1 , sha224 , sha256 , sha384 , sha512 , sha512t256 , rmd160 , -.Nm skein256 , skein512 , skein1024 +.Nm skein256 , skein512 , skein1024 , +.Nm md5sum , sha1sum , sha224sum , sha256sum , sha384sum , sha512sum , +.Nm sha512t256sum , rmd160sum , skein256sum , skein512sum , skein1024sum .Nd calculate a message-digest fingerprint (checksum) for a file .Sh SYNOPSIS .Nm @@ -26,6 +28,15 @@ output a or .Dq message digest of the input. +The +.Nm md5sum , sha1sum , sha224sum , sha256sum , sha384sum , sha512sum , +.Nm sha512t256sum , rmd160sum , skein256sum , skein512sum , +and +.Nm skein1024sum +utilities do the same, but default to the reversed format of +the +.Fl r +flag. It is conjectured that it is computationally infeasible to produce two messages having the same message digest, or to produce any message having a given prespecified target message digest. @@ -59,9 +70,18 @@ precede any files named on the command line. The hexadecimal checksum of each file listed on the command line is printed after the options are processed. .Bl -tag -width indent +.It Fl b +Ignored for compatibility with the coreutils +.Nm -sum +programs. .It Fl c Ar string Compare the digest of the file against this string. .Pq Note that this option is not yet useful if multiple files are specified. +This option causes an error in for the +.Nm -sum +programs because it check the checksums listed in a file for the coreutils +.Nm -sum +programs that is not yet implemented. .It Fl s Ar string Print a checksum of the given .Ar string . @@ -81,6 +101,9 @@ when combined with the options. .It Fl t Run a built-in time trial. +For the +.Nm -sum +versions, this is a nop for compatibility with coreutils. .It Fl x Run a built-in test script. .El @@ -171,6 +194,13 @@ Secure Hash Standard (SHS): .Pp The RIPEMD-160 page: .Pa http://www.esat.kuleuven.ac.be/~bosselae/ripemd160.html . +.Sh BUGS +All of the utilities that end in +.Sq sum +are intended to be compatible with the GNU coreutils programs. +However, the long arguments and the +.Fl -check +functionality are not provided. .Sh ACKNOWLEDGMENTS This program is placed in the public domain for free general use by RSA Data Security. diff --git a/sbin/md5/md5.c b/sbin/md5/md5.c index 96dfcede9711..4381ef124c7b 100644 --- a/sbin/md5/md5.c +++ b/sbin/md5/md5.c @@ -177,13 +177,32 @@ main(int argc, char *argv[]) char buf[HEX_DIGEST_LENGTH]; size_t len; unsigned digest; - const char* progname; + char *progname; + bool gnu_emu = false; if ((progname = strrchr(argv[0], '/')) == NULL) progname = argv[0]; else progname++; + /* + * GNU coreutils has a number of programs named *sum. These produce + * similar results to the BSD version, but in a different format, + * similar to BSD's -r flag. We install links to this program with + * ending 'sum' to provide this compatibility. Check here to see if the + * name of the program ends in 'sum', set the flag and drop the 'sum' so + * the digest lookup works. Also, make -t a nop when running in this mode + * since that means 'text file' there (though it's a nop in coreutils + * on unix-like systems). The -c flag conflicts, so it's just disabled + * in this mode (though in the future it might be implemented). + */ + len = strlen(progname); + if (len > 3 && strcmp(progname + len - 3, "sum") == 0) { + progname[len - 3] = '\0'; + rflag = 1; + gnu_emu = true; + } + for (digest = 0; digest < sizeof(Algorithm)/sizeof(*Algorithm); digest++) if (strcasecmp(Algorithm[digest].progname, progname) == 0) break; @@ -195,9 +214,13 @@ main(int argc, char *argv[]) checkAgainst = NULL; checksFailed = 0; skip = 0; - while ((ch = getopt(argc, argv, "c:pqrs:tx")) != -1) + while ((ch = getopt(argc, argv, "bc:pqrs:tx")) != -1) switch (ch) { + case 'b': + break; case 'c': + if (gnu_emu) + errx(1, "-c check option not supported"); checkAgainst = optarg; break; case 'p': @@ -214,8 +237,10 @@ main(int argc, char *argv[]) string = optarg; break; case 't': - MDTimeTrial(&Algorithm[digest]); - skip = 1; + if (!gnu_emu) { + MDTimeTrial(&Algorithm[digest]); + skip = 1; + } /* else: text mode is a nop */ break; case 'x': MDTestSuite(&Algorithm[digest]); @@ -348,7 +373,7 @@ MDTimeTrial(const Algorithm_t *alg) printf(" done\n"); printf("Digest = %s", p); printf("\nTime = %f seconds\n", seconds); - printf("Speed = %f MiB/second\n", (float) TEST_BLOCK_LEN * + printf("Speed = %f MiB/second\n", (float) TEST_BLOCK_LEN * (float) TEST_BLOCK_COUNT / seconds / (1 << 20)); } /*
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?202105191744.14JHi6fA008046>