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#include <stdio.h>
#include <sys/file.h>
#ifdef SDBM
#include "EXTERN.h"
#include "sdbm.h"
#else
#include <ndbm.h>
#endif
#include <string.h>
extern int getopt();
extern void oops();
char *progname;
static int rflag;
static char *usage = "%s [-R] cat | look |... dbmname";
#define DERROR 0
#define DLOOK 1
#define DINSERT 2
#define DDELETE 3
#define DCAT 4
#define DBUILD 5
#define DPRESS 6
#define DCREAT 7
#define LINEMAX 8192
typedef struct {
char *sname;
int scode;
int flags;
} cmd;
static cmd cmds[] = {
"fetch", DLOOK, O_RDONLY,
"get", DLOOK, O_RDONLY,
"look", DLOOK, O_RDONLY,
"add", DINSERT, O_RDWR,
"insert", DINSERT, O_RDWR,
"store", DINSERT, O_RDWR,
"delete", DDELETE, O_RDWR,
"remove", DDELETE, O_RDWR,
"dump", DCAT, O_RDONLY,
"list", DCAT, O_RDONLY,
"cat", DCAT, O_RDONLY,
"creat", DCREAT, O_RDWR | O_CREAT | O_TRUNC,
"new", DCREAT, O_RDWR | O_CREAT | O_TRUNC,
"build", DBUILD, O_RDWR | O_CREAT,
"squash", DPRESS, O_RDWR,
"compact", DPRESS, O_RDWR,
"compress", DPRESS, O_RDWR
};
#define CTABSIZ (sizeof (cmds)/sizeof (cmd))
static cmd *parse();
static void badk(), doit(), prdatum();
int
main(int argc, char **argv)
{
int c;
cmd *act;
extern int optind;
extern char *optarg;
progname = argv[0];
while ((c = getopt(argc, argv, "R")) != EOF)
switch (c) {
case 'R': /* raw processing */
rflag++;
break;
default:
oops("usage: %s", usage);
break;
}
if ((argc -= optind) < 2)
oops("usage: %s", usage);
if ((act = parse(argv[optind])) == NULL)
badk(argv[optind]);
optind++;
doit(act, argv[optind]);
return 0;
}
static void
doit(cmd *act, char *file)
{
datum key;
datum val;
DBM *db;
char *op;
int n;
char *line;
#ifdef TIME
long start;
extern long time();
#endif
if ((db = dbm_open(file, act->flags, 0644)) == NULL)
oops("cannot open: %s", file);
if ((line = (char *) malloc(LINEMAX)) == NULL)
oops("%s: cannot get memory", "line alloc");
switch (act->scode) {
case DLOOK:
while (fgets(line, LINEMAX, stdin) != NULL) {
n = strlen(line) - 1;
line[n] = 0;
key.dptr = line;
key.dsize = n;
val = dbm_fetch(db, key);
if (val.dptr != NULL) {
prdatum(stdout, val);
putchar('\n');
continue;
}
prdatum(stderr, key);
fprintf(stderr, ": not found.\n");
}
break;
case DINSERT:
break;
case DDELETE:
while (fgets(line, LINEMAX, stdin) != NULL) {
n = strlen(line) - 1;
line[n] = 0;
key.dptr = line;
key.dsize = n;
if (dbm_delete(db, key) == -1) {
prdatum(stderr, key);
fprintf(stderr, ": not found.\n");
}
}
break;
case DCAT:
for (key = dbm_firstkey(db); key.dptr != 0;
key = dbm_nextkey(db)) {
prdatum(stdout, key);
putchar('\t');
prdatum(stdout, dbm_fetch(db, key));
putchar('\n');
}
break;
case DBUILD:
#ifdef TIME
start = time(0);
#endif
while (fgets(line, LINEMAX, stdin) != NULL) {
n = strlen(line) - 1;
line[n] = 0;
key.dptr = line;
if ((op = strchr(line, '\t')) != 0) {
key.dsize = op - line;
*op++ = 0;
val.dptr = op;
val.dsize = line + n - op;
}
else
oops("bad input; %s", line);
if (dbm_store(db, key, val, DBM_REPLACE) < 0) {
prdatum(stderr, key);
fprintf(stderr, ": ");
oops("store: %s", "failed");
}
}
#ifdef TIME
printf("done: %d seconds.\n", time(0) - start);
#endif
break;
case DPRESS:
break;
case DCREAT:
break;
}
dbm_close(db);
}
static void
badk(char *word)
{
int i;
if (progname)
fprintf(stderr, "%s: ", progname);
fprintf(stderr, "bad keywd %s. use one of\n", word);
for (i = 0; i < (int)CTABSIZ; i++)
fprintf(stderr, "%-8s%c", cmds[i].sname,
((i + 1) % 6 == 0) ? '\n' : ' ');
fprintf(stderr, "\n");
exit(1);
/*NOTREACHED*/
}
static cmd *
parse(char *str)
{
int i = CTABSIZ;
cmd *p;
for (p = cmds; i--; p++)
if (strcmp(p->sname, str) == 0)
return p;
return NULL;
}
static void
prdatum(FILE *stream, datum d)
{
int c;
U8 *p = (U8 *) d.dptr;
int n = d.dsize;
while (n--) {
c = *p++;
#ifndef EBCDIC /* Meta notation doesn't make sense on EBCDIC systems*/
if (c & 0200) {
fprintf(stream, "M-");
c &= 0177;
}
#endif
/* \c notation applies for \0 . \x1f, plus \c? */
if (c <= 0x1F || c == QUESTION_MARK_CTRL) {
fprintf(stream, "^%c", toCTRL(c));
}
#ifdef EBCDIC /* Instead of meta, use \x{} for non-printables */
else if (! isPRINT_A(c)) {
fprintf(stream, "\\x{%02x}", c);
}
#endif
else { /* must be an ASCII printable */
putc(c, stream);
}
}
}
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