--- /dev/null
+/* -*-c-*-
+ *
+ * Hash files using some secure hash function
+ *
+ * (c) 2000 Straylight/Edgeware
+ */
+
+/*----- Licensing notice --------------------------------------------------*
+ *
+ * This file is part of Catacomb.
+ *
+ * Catacomb is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Library General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * Catacomb is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with Catacomb; if not, write to the Free
+ * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+/*----- Header files ------------------------------------------------------*/
+
+#define _FILE_OFFSET_BITS 64
+
+#include "config.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <mLib/alloc.h>
+#include <mLib/dstr.h>
+#include <mLib/mdwopt.h>
+#include <mLib/quis.h>
+#include <mLib/report.h>
+#include <mLib/sub.h>
+
+#include "ghash.h"
+#include "cc.h"
+
+/*----- Static variables --------------------------------------------------*/
+
+#define f_bogus 1u
+#define f_verbose 2u
+#define f_check 4u
+#define f_files 8u
+#define f_oddhash 16u
+#define f_escape 32u
+#define f_oddenc 64u
+
+/*----- Guts --------------------------------------------------------------*/
+
+static int checkjunk(const char *path, const struct stat *st, void *p)
+{
+ const char *what;
+ fhashstate *fh = p;
+
+ if (!st) {
+ if (fh->f & f_verbose)
+ fprintf(stderr, "JUNK (error %s) %s\n", strerror(errno), path);
+ else
+ moan("couldn't stat junk file `%s': %s", path, strerror(errno));
+ } else {
+ what = describefile(st);
+ if (fh->f & f_verbose)
+ fprintf(stderr, "JUNK %s %s\n", what, path);
+ else
+ moan("found junk %s `%s'", what, path);
+ }
+ return (0);
+}
+
+static int warnjunk(const char *path, const struct stat *st, void *p)
+{
+ if (st)
+ moan("unexpected %s `%s'", describefile(st), path);
+ else
+ moan("couldn't stat unexpected file `%s': %s", path, strerror(errno));
+ return (0);
+}
+
+static int checkhash(fhashstate *fh, const char *file, const encodeops *e)
+{
+ int rc;
+ hfpctx hfp;
+ dstr dl = DSTR_INIT;
+ dstr df = DSTR_INIT;
+ unsigned long n = 0, nfail = 0;
+ int hf;
+
+ if (!file || strcmp(file, "-") == 0)
+ hfp.fp = stdin;
+ else if ((hfp.fp = fopen(file, fh->f & GSF_RAW ? "r" : "rb")) == 0) {
+ moan("couldn't open `%s': %s", file, strerror(errno));
+ return (EXIT_FAILURE);
+ }
+
+ hfp.dline = &dl;
+ hfp.dfile = &df;
+ hfp.hbuf = xmalloc(2 * fh->gch->hashsz);
+ hfp.gch = fh->gch;
+ hfp.ee = e;
+ hfp.f = fh->f;
+
+ while ((hf = hfparse(&hfp)) != HF_EOF) {
+ switch (hf) {
+ case HF_HASH:
+ xfree(hfp.hbuf);
+ hfp.hbuf = xmalloc(2 * hfp.gch->hashsz);
+ break;
+ case HF_FILE:
+ if (fhash(fh, df.buf, hfp.hbuf + hfp.gch->hashsz)) {
+ moan("couldn't read `%s': %s", df.buf, strerror(errno));
+ rc = EXIT_FAILURE;
+ continue;
+ }
+ if (memcmp(hfp.hbuf, hfp.hbuf + hfp.gch->hashsz,
+ hfp.gch->hashsz) != 0) {
+ if (hfp.f & f_verbose)
+ fprintf(stderr, "FAIL %s\n", df.buf);
+ else
+ moan("%s check failed for `%s'", hfp.gch->name, df.buf);
+ nfail++;
+ rc = EXIT_FAILURE;
+ } else {
+ if (hfp.f & f_verbose)
+ fprintf(stderr, "OK %s\n", df.buf);
+ }
+ n++;
+ }
+ }
+
+ if (ferror(hfp.fp)) {
+ moan("error reading input `%s': %s",
+ file ? file : "<stdin>", strerror(errno));
+ rc = EXIT_FAILURE;
+ }
+ dstr_destroy(&dl);
+ dstr_destroy(&df);
+ xfree(hfp.hbuf);
+ if ((fh->f & f_verbose) && nfail)
+ moan("%lu of %lu file(s) failed %s check", nfail, n, hfp.gch->name);
+ else if (!n)
+ moan("no files checked");
+ return (rc);
+}
+
+static int dohash(fhashstate *fh, const char *file, const encodeops *e)
+{
+ int rc = 0;
+ octet *p = xmalloc(fh->gch->hashsz);
+
+ if (fhash(fh, file, p)) {
+ moan("couldn't read `%s': %s", file ? file : "<stdin>", strerror(errno));
+ rc = EXIT_FAILURE;
+ } else {
+ e->put(p, fh->gch->hashsz, stdout);
+ if (file) {
+ fputc(' ', stdout);
+ fputc(fh->f & FHF_BINARY ? '*' : ' ', stdout);
+ if (fh->f & f_escape)
+ putstring(stdout, file, 0);
+ else
+ fputs(file, stdout);
+ }
+ fputc('\n', stdout);
+ }
+
+ xfree(p);
+ return (rc);
+}
+
+static int dofile(fhashstate *fh, const char *file, const encodeops *e)
+ { return (fh->f & f_check ? checkhash : dohash)(fh, file, e); }
+
+static int hashfiles(fhashstate *fh, const char *file, const encodeops *e)
+{
+ FILE *fp;
+ dstr d = DSTR_INIT;
+ int rc = 0;
+ int rrc;
+
+ if (!file || strcmp(file, "-") == 0)
+ fp = stdin;
+ else if ((fp = fopen(file, fh->f & GSF_RAW ? "r" : "rb")) == 0) {
+ moan("couldn't open `%s': %s", file, strerror(errno));
+ return (EXIT_FAILURE);
+ }
+
+ for (;;) {
+ DRESET(&d);
+ if (getstring(fp, &d, GSF_FILE | fh->f))
+ break;
+ if ((rrc = dofile(fh, d.buf, e)) != 0)
+ rc = rrc;
+ }
+
+ return (rc);
+}
+
+static int hashsum(fhashstate *fh, const char *file, const encodeops *e)
+ { return (fh->f & f_files ? hashfiles : dofile)(fh, file, e); }
+
+/*----- Main driver -------------------------------------------------------*/
+
+void version(FILE *fp)
+{
+ pquis(fp, "$, Catacomb version " VERSION "\n");
+}
+
+static void usage(FILE *fp)
+{
+ pquis(fp, "Usage: $ [-f0ebcv] [-a ALGORITHM] [-E ENC] [FILES...]\n");
+}
+
+static void help(FILE *fp, const gchash *gch)
+{
+ version(fp);
+ fputc('\n', fp);
+ usage(fp);
+ pquis(fp, "\n\
+Generates or checks message digests on files. Options available:\n\
+\n\
+-h, --help Display this help message.\n\
+-V, --version Display program's version number.\n\
+-u, --usage Display a terse usage message.\n\
+-l, --list [ITEM...] Show known hash functions and/or encodings.\n\
+\n\
+-a, --algorithm=ALG Use the message digest algorithm ALG.\n\
+-E, --encoding=ENC Represent hashes using encoding ENC.\n\
+\n\
+-f, --files Read a list of file names from standard input.\n\
+-0, --null File names are null terminated, not plain text.\n\
+\n\
+-e, --escape Escape funny characters in filenames.\n\
+-c, --check Check message digests rather than emitting them.\n\
+-b, --binary When reading files, treat them as binary.\n\
+-p, --progress Show a progress indicator for large files.\n\
+-v, --verbose Be verbose when checking digests.\n\
+\n\
+For a list of hashing algorithms and encodings, type `$ --list'.\n\
+");
+ if (gch)
+ fprintf(fp, "The default message digest algorithm is %s.\n", gch->name);
+}
+
+#define LISTS(LI) \
+ LI("Lists", list, listtab[i].name, listtab[i].name) \
+ LI("Hash functions", hash, ghashtab[i], ghashtab[i]->name) \
+ LI("Encodings", enc, encodingtab[i].name, encodingtab[i].name)
+
+MAKELISTTAB(listtab, LISTS)
+
+int main(int argc, char *argv[])
+{
+ fhashstate fh;
+ const encodeops *e = &encodingtab[ENC_HEX];
+ int rc;
+
+ /* --- Initialization --- */
+
+ ego(argv[0]);
+ sub_init();
+ fhash_init(&fh, 0, 0);
+
+ /* --- Choose a hash function from the name --- */
+
+ {
+ char *q = xstrdup(QUIS);
+ size_t len = strlen(q);
+ if (len > 3 && strcmp(q + len - 3, "sum") == 0) {
+ q[len - 3] = 0;
+ fh.gch = gethash(q);
+ }
+ if (!fh.gch)
+ fh.gch = gethash("md5");
+ xfree(q);
+ }
+
+ /* --- Read options --- */
+
+ for (;;) {
+ static struct option opts[] = {
+ { "help", 0, 0, 'h' },
+ { "verbose", 0, 0, 'V' },
+ { "usage", 0, 0, 'u' },
+
+ { "algorithm", OPTF_ARGREQ, 0, 'a' },
+ { "hash", OPTF_ARGREQ, 0, 'a' },
+ { "encoding", OPTF_ARGREQ, 0, 'E' },
+ { "list", 0, 0, 'l' },
+
+ { "files", 0, 0, 'f' },
+ { "find", 0, 0, 'f' },
+ { "null", 0, 0, '0' },
+
+ { "escape", 0, 0, 'e' },
+ { "check", 0, 0, 'c' },
+ { "junk", 0, 0, 'j' },
+ { "binary", 0, 0, 'b' },
+ { "verbose", 0, 0, 'v' },
+ { "progress", 0, 0, 'p' },
+
+ { 0, 0, 0, 0 }
+ };
+ int i = mdwopt(argc, argv, "hVu a:E:l f0 ecjbvp", opts, 0, 0, 0);
+ if (i < 0)
+ break;
+
+ switch (i) {
+ case 'h':
+ help(stdout, fh.gch);
+ exit(0);
+ case 'V':
+ version(stdout);
+ exit(0);
+ case 'u':
+ usage(stdout);
+ exit(0);
+ case 'l':
+ exit(displaylists(listtab, argv + optind));
+ case 'a':
+ if ((fh.gch = gethash(optarg)) == 0)
+ die(EXIT_FAILURE, "unknown hash algorithm `%s'", optarg);
+ fh.f |= f_oddhash;
+ break;
+ case 'E':
+ if ((e = getencoding(optarg)) == 0)
+ die(EXIT_FAILURE, "unknown encoding `%s'", optarg);
+ fh.f |= f_oddenc;
+ break;
+ case 'f':
+ fh.f |= f_files;
+ break;
+ case '0':
+ fh.f |= GSF_RAW;
+ break;
+ case 'e':
+ fh.f |= f_escape;
+ break;
+ case 'c':
+ fh.f |= f_check;
+ break;
+ case 'j':
+ fh.f |= FHF_JUNK;
+ break;
+ case 'b':
+ fh.f |= FHF_BINARY;
+ break;
+ case 'v':
+ fh.f |= f_verbose;
+ break;
+ case 'p':
+ fh.f |= FHF_PROGRESS;
+ break;
+ default:
+ fh.f |= f_bogus;
+ break;
+ }
+ }
+
+ if (fh.f & f_bogus) {
+ usage(stderr);
+ exit(EXIT_FAILURE);
+ }
+ argv += optind;
+ argc -= optind;
+
+ /* --- Generate output --- */
+
+ if (!(fh.f & f_check) && (argc || (fh.f & f_files))) {
+ if (fh.f & f_oddhash) printf("#hash %s\n", fh.gch->name);
+ if (fh.f & f_oddenc) printf("#encoding %s\n", e->name);
+ if (fh.f & f_escape) fputs("#escape\n", stdout);
+ }
+ if (!argc)
+ rc = hashsum(&fh, 0, e);
+ else {
+ int i;
+ int rrc;
+
+ rc = 0;
+ for (i = 0; i < argc; i++) {
+ if ((rrc = hashsum(&fh, argv[i], e)) != 0)
+ rc = rrc;
+ }
+ }
+
+ if (fh.f & FHF_JUNK) {
+ if (fh.f & f_check) {
+ if (fhash_junk(&fh, checkjunk, &fh)) rc = EXIT_FAILURE;
+ } else {
+ if (fhash_junk(&fh, warnjunk, 0) < 0) rc = EXIT_FAILURE;
+ }
+ }
+ fhash_free(&fh);
+
+ return (rc);
+}
+
+/*----- That's all, folks -------------------------------------------------*/
projects / u / mdw / catacomb / blobdiff