Date: Fri, 6 Jan 2012 02:28:21 +0000 (UTC) From: Eitan Adler <eadler@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org Subject: svn commit: r229682 - stable/7/sbin/md5 Message-ID: <201201060228.q062SLbu067618@svn.freebsd.org>
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Author: eadler (ports committer) Date: Fri Jan 6 02:28:21 2012 New Revision: 229682 URL: http://svn.freebsd.org/changeset/base/229682 Log: MFC r227488: - add "check" option to MD5 and friends to compare files against known hash. Approved by: cperciva Modified: stable/7/sbin/md5/md5.1 stable/7/sbin/md5/md5.c Directory Properties: stable/7/sbin/md5/ (props changed) Modified: stable/7/sbin/md5/md5.1 ============================================================================== --- stable/7/sbin/md5/md5.1 Fri Jan 6 02:27:43 2012 (r229681) +++ stable/7/sbin/md5/md5.1 Fri Jan 6 02:28:21 2012 (r229682) @@ -8,18 +8,22 @@ .Sh SYNOPSIS .Nm md5 .Op Fl pqrtx +.Op Fl c Ar string .Op Fl s Ar string .Op Ar .Nm sha1 .Op Fl pqrtx +.Op Fl c Ar string .Op Fl s Ar string .Op Ar .Nm sha256 .Op Fl pqrtx +.Op Fl c Ar string .Op Fl s Ar string .Op Ar .Nm rmd160 .Op Fl pqrtx +.Op Fl c Ar string .Op Fl s Ar string .Op Ar .Sh DESCRIPTION @@ -64,6 +68,9 @@ precede any files named on the command l The hexadecimal checksum of each file listed on the command line is printed after the options are processed. .Bl -tag -width indent +.It Fl c Ar string +Compare files to this md5 string. (Note that this option is not yet useful +if multiple files are specified.) .It Fl s Ar string Print a checksum of the given .Ar string . @@ -92,7 +99,8 @@ The and .Nm rmd160 utilities exit 0 on success, -and 1 if at least one of the input files could not be read. +1 if at least one of the input files could not be read, +and 2 if at least one file does not have the same hash as the -c option. .Sh SEE ALSO .Xr cksum 1 , .Xr md5 3 , Modified: stable/7/sbin/md5/md5.c ============================================================================== --- stable/7/sbin/md5/md5.c Fri Jan 6 02:27:43 2012 (r229681) +++ stable/7/sbin/md5/md5.c Fri Jan 6 02:28:21 2012 (r229682) @@ -44,6 +44,8 @@ __FBSDID("$FreeBSD$"); int qflag; int rflag; int sflag; +unsigned char* checkAgainst; +int checksFailed; typedef void (DIGEST_Init)(void *); typedef void (DIGEST_Update)(void *, const unsigned char *, size_t); @@ -138,8 +140,13 @@ main(int argc, char *argv[]) digest = 0; failed = 0; - while ((ch = getopt(argc, argv, "pqrs:tx")) != -1) + checkAgainst = NULL; + checksFailed = 0; + while ((ch = getopt(argc, argv, "c:pqrs:tx")) != -1) switch (ch) { + case 'c': + checkAgainst = optarg; + break; case 'p': MDFilter(&Algorithm[digest], 1); break; @@ -173,12 +180,19 @@ main(int argc, char *argv[]) failed++; } else { if (qflag) - printf("%s\n", p); + printf("%s", p); else if (rflag) - printf("%s %s\n", p, *argv); + printf("%s %s", p, *argv); else - printf("%s (%s) = %s\n", + printf("%s (%s) = %s", Algorithm[digest].name, *argv, p); + if (checkAgainst && strcmp(checkAgainst,p)) + { + checksFailed++; + if (!qflag) + printf(" [ Failed ]"); + } + printf("\n"); } } while (*++argv); } else if (!sflag && (optind == 1 || qflag || rflag)) @@ -186,6 +200,8 @@ main(int argc, char *argv[]) if (failed != 0) return (1); + if (checksFailed != 0) + return (2); return (0); } @@ -198,12 +214,20 @@ MDString(Algorithm_t *alg, const char *s size_t len = strlen(string); char buf[HEX_DIGEST_LENGTH]; + alg->Data(string,len,buf); if (qflag) - printf("%s\n", alg->Data(string, len, buf)); + printf("%s", buf); else if (rflag) - printf("%s \"%s\"\n", alg->Data(string, len, buf), string); + printf("%s \"%s\"", buf, string); else - printf("%s (\"%s\") = %s\n", alg->name, string, alg->Data(string, len, buf)); + printf("%s (\"%s\") = %s", alg->name, string, buf); + if (checkAgainst && strcmp(buf,checkAgainst)) + { + checksFailed++; + if (!qflag) + printf(" [ failed ]"); + } + printf("\n"); } /* * Measures the time to digest TEST_BLOCK_COUNT TEST_BLOCK_LEN-byte blocks.
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