/* -*-c-*-
*
- * $Id: hashsum.c,v 1.1 2000/07/15 20:52:34 mdw Exp $
+ * $Id: hashsum.c,v 1.9 2004/04/04 19:42:59 mdw Exp $
*
* Hash files using some secure hash function
*
/*----- Revision history --------------------------------------------------*
*
* $Log: hashsum.c,v $
+ * Revision 1.9 2004/04/04 19:42:59 mdw
+ * Add set -e.
+ *
+ * Revision 1.8 2001/04/19 18:26:33 mdw
+ * Add CRC as another hash function.
+ *
+ * Revision 1.7 2001/02/21 20:03:22 mdw
+ * Added support for MD2 hash function.
+ *
+ * Revision 1.6 2001/01/25 21:40:14 mdw
+ * Support for new SHA variants added.
+ *
+ * Revision 1.5 2000/12/06 20:33:27 mdw
+ * Make flags be macros rather than enumerations, to ensure that they're
+ * unsigned.
+ *
+ * Revision 1.4 2000/08/04 23:23:44 mdw
+ * Various <ctype.h> fixes.
+ *
+ * Revision 1.3 2000/07/29 17:02:43 mdw
+ * (checkhash): Be pettier about spaces between the hash and filename, for
+ * compatiblity with `md5sum'.
+ *
+ * Revision 1.2 2000/07/15 21:14:05 mdw
+ * Missed `-e' out of the usage string.
+ *
* Revision 1.1 2000/07/15 20:52:34 mdw
* Useful replacement for `md5sum' with support for many different hash
* functions and for reading filename lists from `find'.
#include "ghash.h"
-#include "md4.h"
-#include "md5.h"
-#include "rmd128.h"
-#include "rmd160.h"
-#include "rmd256.h"
-#include "rmd320.h"
-#include "sha.h"
-#include "tiger.h"
-
/*----- Static variables --------------------------------------------------*/
-static const gchash *hashtab[] = {
- &md5, &md4, &sha, &rmd128, &rmd160, &rmd256, &rmd320, &tiger,
- 0
-};
-
-enum {
- f_binary = 1,
- f_bogus = 2,
- f_verbose = 4,
- f_check = 8,
- f_files = 16,
- f_raw = 32,
- f_oddhash = 64,
- f_escape = 128
-};
+#define f_binary 1u
+#define f_bogus 2u
+#define f_verbose 4u
+#define f_check 8u
+#define f_files 16u
+#define f_raw 32u
+#define f_oddhash 64u
+#define f_escape 128u
/*----- Support functions -------------------------------------------------*/
static const gchash *gethash(const char *name)
{
- const gchash **g, *gg = 0;
+ const gchash *const *g, *gg = 0;
size_t sz = strlen(name);
- for (g = hashtab; *g; g++) {
+ for (g = ghashtab; *g; g++) {
if (strncmp(name, (*g)->name, sz) == 0) {
if ((*g)->name[sz] == 0) {
gg = *g;
/* --- Raw: just read exactly what's written up to a null byte --- */
-#define NEXTCH (fp ? getc(fp) : *p++)
+#define NEXTCH (fp ? getc(fp) : (unsigned char)*p++)
#define EOFCH (fp ? EOF : 0)
if (raw) {
again:
ch = NEXTCH;
- while (isspace((unsigned char)ch))
+ while (isspace(ch))
ch = NEXTCH;
if (ch == '#') {
do ch = NEXTCH; while (ch != '\n' && ch != EOFCH);
if (ch == q)
break;
- if (!q && isspace((unsigned char)ch))
+ if (!q && isspace(ch))
break;
/* --- Otherwise contribute and continue --- */
/* --- Otherwise it's a hex thing --- */
- if ((q = str_getword(&p)) == 0)
+ q = p;
+ while (*p && *p != ' ')
+ p++;
+ if (!*p)
continue;
+ *p++ = 0;
if (gethex(q, buf, gch->hashsz, 0) < gch->hashsz)
continue;
- while (isspace((unsigned char)*p))
- p++;
- if (*p == '*') {
- p++;
+ if (*p == '*')
ff |= f_binary;
- }
- if (!*p)
+ else if (*p != ' ')
continue;
+ p++;
if (f & f_escape) {
DRESET(&dd);
return (rc);
}
+static int dofile(const char *file, unsigned f, const gchash *gch)
+{
+ return (f & f_check ? checkhash : dohash)(file, f, gch);
+}
+
static int hashfiles(const char *file, unsigned f, const gchash *gch)
{
FILE *fp;
DRESET(&d);
if (getstring(fp, 0, &d, f & f_raw))
break;
- if ((rrc = dohash(d.buf, f, gch)) != 0)
+ if ((rrc = dofile(d.buf, f, gch)) != 0)
rc = rrc;
}
static int hashsum(const char *file, unsigned f, const gchash *gch)
{
- if (f & f_check)
- return (checkhash(file, f, gch));
- if (f & f_files)
- return (hashfiles(file, f, gch));
- return (dohash(file, f, gch));
+ return (f & f_files ? hashfiles : dofile)(file, f, gch);
}
/*----- Main driver -------------------------------------------------------*/
static void usage(FILE *fp)
{
- pquis(fp, "Usage: $ [-f0bcv] [-a algorithm] [files...]\n");
+ pquis(fp, "Usage: $ [-f0ebcv] [-a algorithm] [files...]\n");
}
static void help(FILE *fp, const gchash *gch)
gch = gethash(q);
}
if (!gch)
- gch = hashtab[0];
+ gch = gethash("md5");
xfree(q);
}
break;
case 'l': {
unsigned j;
- for (j = 0; hashtab[j]; j++) {
+ for (j = 0; ghashtab[j]; j++) {
if (j)
fputc(' ', stdout);
- printf("%s", hashtab[j]->name);
+ printf("%s", ghashtab[j]->name);
}
fputc('\n', stdout);
exit(0);