diff options
Diffstat (limited to 'db2/progs/db_dump/db_dump.c')
| -rw-r--r-- | db2/progs/db_dump/db_dump.c | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/db2/progs/db_dump/db_dump.c b/db2/progs/db_dump/db_dump.c new file mode 100644 index 0000000000..d60aa9b5c9 --- /dev/null +++ b/db2/progs/db_dump/db_dump.c @@ -0,0 +1,280 @@ +/*- + * See the file LICENSE for redistribution information. + * + * Copyright (c) 1996, 1997 + * Sleepycat Software. All rights reserved. + */ + +#include "config.h" + +#ifndef lint +static const char copyright[] = +"@(#) Copyright (c) 1997\n\ + Sleepycat Software Inc. All rights reserved.\n"; +static const char sccsid[] = "@(#)db_dump.c 10.13 (Sleepycat) 8/19/97"; +#endif + +#ifndef NO_SYSTEM_INCLUDES +#include <sys/types.h> + +#include <ctype.h> +#include <errno.h> +#include <getopt.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#endif + +#include "db_int.h" +#include "db_page.h" +#include "btree.h" +#include "hash.h" +#include "clib_ext.h" + +void configure __P((char *)); +DB_ENV *db_init __P((char *)); +void dbt_dump __P((DBT *)); +void dbt_print __P((DBT *)); +void pheader __P((DB *, int)); +void usage __P((void)); +int main __P((int, char *[])); + +const char *progname = "db_dump"; /* Program name. */ + +int +main(argc, argv) + int argc; + char *argv[]; +{ + extern char *optarg; + extern int optind; + DB *dbp; + DBC *dbcp; + DBT key, data; + DB_ENV *dbenv; + int ch, dflag, pflag; + char *home; + + home = NULL; + dflag = pflag = 0; + while ((ch = getopt(argc, argv, "df:h:p")) != EOF) + switch (ch) { + case 'd': + dflag = 1; + break; + case 'f': + if (freopen(optarg, "w", stdout) == NULL) + err(1, "%s", optarg); + break; + case 'h': + home = optarg; + break; + case 'p': + pflag = 1; + break; + case '?': + default: + usage(); + } + argc -= optind; + argv += optind; + + if (argc != 1) + usage(); + + if (dflag) { + if (home != NULL) + errx(1, + "the -d and -h options may not both be specified"); + if (pflag) + errx(1, + "the -d and -p options may not both be specified"); + } + /* Initialize the environment. */ + dbenv = dflag ? NULL : db_init(home); + + /* Open the DB file. */ + if ((errno = + db_open(argv[0], DB_UNKNOWN, DB_RDONLY, 0, dbenv, NULL, &dbp)) != 0) + err(1, "%s", argv[0]); + + /* DB dump. */ + if (dflag) { + (void)__db_dump(dbp, NULL, 1); + if ((errno = dbp->close(dbp, 0)) != 0) + err(1, "close"); + exit (0); + } + + /* Get a cursor and step through the database. */ + if ((errno = dbp->cursor(dbp, NULL, &dbcp)) != 0) { + (void)dbp->close(dbp, 0); + err(1, "cursor"); + } + + /* Print out the header. */ + pheader(dbp, pflag); + + /* Print out the key/data pairs. */ + memset(&key, 0, sizeof(key)); + memset(&data, 0, sizeof(data)); + if (pflag) + while ((errno = dbcp->c_get(dbcp, &key, &data, DB_NEXT)) == 0) { + if (dbp->type != DB_RECNO) + dbt_print(&key); + dbt_print(&data); + } + else + while ((errno = dbcp->c_get(dbcp, &key, &data, DB_NEXT)) == 0) { + if (dbp->type != DB_RECNO) + dbt_dump(&key); + dbt_dump(&data); + } + if (errno != DB_NOTFOUND) + err(1, "cursor get"); + + if ((errno = dbp->close(dbp, 0)) != 0) + err(1, "close"); + return (0); +} + +/* + * db_init -- + * Initialize the environment. + */ +DB_ENV * +db_init(home) + char *home; +{ + DB_ENV *dbenv; + + if ((dbenv = (DB_ENV *)calloc(sizeof(DB_ENV), 1)) == NULL) { + errno = ENOMEM; + err(1, NULL); + } + dbenv->db_errfile = stderr; + dbenv->db_errpfx = progname; + + if ((errno = + db_appinit(home, NULL, dbenv, DB_CREATE | DB_USE_ENVIRON)) != 0) + err(1, "db_appinit"); + return (dbenv); +} + +/* + * pheader -- + * Write out the header information. + */ +void +pheader(dbp, pflag) + DB *dbp; + int pflag; +{ + DB_BTREE_STAT *btsp; + HTAB *hashp; + HASHHDR *hdr; + db_pgno_t pgno; + + printf("format=%s\n", pflag ? "print" : "bytevalue"); + switch (dbp->type) { + case DB_BTREE: + printf("type=btree\n"); + if ((errno = dbp->stat(dbp, &btsp, NULL, 0)) != 0) + err(1, "dbp->stat"); + if (F_ISSET(dbp, DB_BT_RECNUM)) + printf("recnum=1\n"); + if (btsp->bt_maxkey != 0) + printf("bt_maxkey=%lu\n", (u_long)btsp->bt_maxkey); + if (btsp->bt_minkey != 0) + printf("bt_minkey=%lu\n", (u_long)btsp->bt_minkey); + break; + case DB_HASH: + printf("type=hash\n"); + hashp = dbp->internal; + pgno = PGNO_METADATA; + if (memp_fget(dbp->mpf, &pgno, 0, &hdr) == 0) { + if (hdr->ffactor != 0) + printf("h_ffactor=%lu\n", (u_long)hdr->ffactor); + if (hdr->nelem != 0) + printf("h_nelem=%lu\n", (u_long)hdr->nelem); + (void)memp_fput(dbp->mpf, hdr, 0); + } + break; + case DB_RECNO: + printf("type=recno\n"); + if (F_ISSET(dbp, DB_RE_RENUMBER)) + printf("renumber=1\n"); + if (F_ISSET(dbp, DB_RE_FIXEDLEN)) + printf("re_len=%lu\n", (u_long)btsp->bt_re_len); + if (F_ISSET(dbp, DB_RE_PAD)) + printf("re_pad=%#x\n", btsp->bt_re_pad); + break; + case DB_UNKNOWN: + abort(); + /* NOTREACHED */ + } + + if (F_ISSET(dbp, DB_AM_DUP)) + printf("duplicates=1\n"); + + if (dbp->dbenv->db_lorder != 0) + printf("db_lorder=%lu\n", (u_long)dbp->dbenv->db_lorder); + + if (!F_ISSET(dbp, DB_AM_PGDEF)) + printf("db_pagesize=%lu\n", (u_long)dbp->pgsize); + + printf("HEADER=END\n"); +} + +static char hex[] = "0123456789abcdef"; + +/* + * dbt_dump -- + * Write out a key or data item using byte values. + */ +void +dbt_dump(dbtp) + DBT *dbtp; +{ + u_int32_t len; + u_int8_t *p; + + for (len = dbtp->size, p = dbtp->data; len--; ++p) + (void)printf("%c%c", + hex[(u_int8_t)(*p & 0xf0) >> 4], hex[*p & 0x0f]); + printf("\n"); +} + +/* + * dbt_print -- + * Write out a key or data item using printable characters. + */ +void +dbt_print(dbtp) + DBT *dbtp; +{ + u_int32_t len; + u_int8_t *p; + + for (len = dbtp->size, p = dbtp->data; len--; ++p) + if (isprint(*p)) { + if (*p == '\\') + (void)printf("\\"); + (void)printf("%c", *p); + } else + (void)printf("\\%c%c", + hex[(u_int8_t)(*p & 0xf0) >> 4], hex[*p & 0x0f]); + printf("\n"); +} + +/* + * usage -- + * Display the usage message. + */ +void +usage() +{ + (void)fprintf(stderr, + "usage: db_dump [-dp] [-f file] [-h home] db_file\n"); + exit(1); +} |