/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include "med_local.h"
#include "med_hash.h"
#include <sys/lvm/mdio.h>
#include <sys/lvm/md_mdiox.h>
#include <sys/lvm/md_crc.h>
static int med_db_is_inited = 0;
static Cache *med_db_cache = (Cache *) NULL;
static med_rec_t *med_db_medrp = NULL;
static int med_db_nma = 0;
static int med_db_nmu = 0;
static int rec_size = roundup(sizeof (med_rec_t), DEV_BSIZE);
static char *rec_buf = NULL;
static int dbfd = -1;
#define OP_FLAGS (O_RDWR | O_SYNC)
#define CR_FLAGS (OP_FLAGS | O_CREAT)
#define HASHSIZE 151
#define BSZ 4
#ifdef DEBUG
void
med_pr(void *keyp, int keyl, void *datap, int datal)
{
med_med_t *medp = (med_med_t *)keyp;
int medridx = *(int *)datap;
med_rec_t *medrp = &med_db_medrp[medridx];
med_eprintf(
"key (%d)[keyp=0x%08x]: setno=%ld, setname=<%s>, caller=<%s>\n",
keyl, (unsigned)keyp, medp->med_setno, medp->med_setname,
medp->med_caller);
med_eprintf("data(%d)[datap=0x%x08][medrp=0x%x08]: medridx=%d\n",
datal, (unsigned)datap, (unsigned)medrp, medridx);
}
#endif /* DEBUG */
static int
med_hash(void *datap, int datalen, int hsz)
{
med_med_t *medp = (med_med_t *)datap;
int i = datalen;
char *cp;
i = 0;
cp = medp->med_setname;
while (*cp != '\0')
i += *cp++;
cp = medp->med_caller;
while (*cp != '\0')
i += *cp++;
i *= medp->med_setno;
return (i % hsz);
}
/*ARGSUSED*/
static int
med_comp(void *datap1, void *datap2, int datalen)
{
med_med_t *medp1 = (med_med_t *)datap1;
med_med_t *medp2 = (med_med_t *)datap2;
int ret;
ret = medp1->med_setno - medp2->med_setno;
if (ret != 0)
return (ret);
ret = strcmp(medp1->med_caller, medp2->med_caller);
if (ret != 0)
return (ret);
return (strcmp(medp1->med_setname, medp2->med_setname));
}
static void
med_kfree(void *keyp)
{
med_med_t *medp = (med_med_t *)keyp;
(void) Free(medp->med_caller);
(void) Free(medp->med_setname);
(void) Free(keyp);
}
static int
add_key(med_med_t *medp, int medridx)
{
Item *itemp;
int len;
med_med_t *tmedp;
if (med_db_cache == (Cache *) NULL) {
len = init_cache(&med_db_cache, HASHSIZE, BSZ, med_hash,
med_comp, med_kfree, (void (*)())NULL);
if (len == -1) {
med_eprintf("add_key(): init_cache() failed.\n");
return (-1);
}
}
len = sizeof (med_med_t);
if ((itemp = lookup_cache(med_db_cache, medp, len)) == Null_Item) {
if ((itemp = (Item *) Malloc(sizeof (*itemp))) == NULL) {
med_eprintf("add_key(): itemp = Malloc(%d)\n",
sizeof (*itemp));
return (-1);
}
if ((tmedp = itemp->key = Malloc(len)) == NULL) {
med_eprintf("add_key(): itemp->key = Malloc(%d)\n",
len);
return (-1);
}
*tmedp = *medp; /* structure assignment */
tmedp->med_caller = Malloc(strlen(medp->med_caller) + 1);
if (tmedp->med_caller == NULL) {
med_eprintf(
"add_key(): tmedp->med_caller = Malloc(%d)\n",
strlen(medp->med_caller) + 1);
return (-1);
}
(void) strcpy(tmedp->med_caller, medp->med_caller);
tmedp->med_setname = Malloc(strlen(medp->med_setname) + 1);
if (tmedp->med_setname == NULL) {
med_eprintf(
"add_key(): tmedp->med_setname = Malloc(%d)\n",
strlen(medp->med_setname) + 1);
return (-1);
}
(void) strcpy(tmedp->med_setname, medp->med_setname);
itemp->keyl = len;
if ((itemp->data = Malloc(sizeof (int))) == NULL) {
med_eprintf("add_key(): itemp->data = Malloc(%d)\n",
sizeof (med_rec_t *));
return (-1);
}
*(int *)itemp->data = medridx;
itemp->datal = sizeof (int);
if (add_cache(med_db_cache, itemp) == -1) {
med_eprintf("add_key(): add_cache() failed.\n");
return (-1);
}
return (0);
}
return (1);
}
static int
del_key(med_med_t *medp)
{
Item *itemp;
int len;
if (med_db_cache == (Cache *) NULL)
return (0);
len = sizeof (med_med_t);
if ((itemp = lookup_cache(med_db_cache, medp, len)) == Null_Item)
return (0);
(void) del_cache(med_db_cache, itemp);
return (0);
}
static int
find_key(med_med_t *medp)
{
Item *itemp;
int len;
if (med_db_cache == (Cache *) NULL)
return (-1);
len = sizeof (med_med_t);
if ((itemp = lookup_cache(med_db_cache, medp, len)) == Null_Item)
return (-1);
return (*(int *)itemp->data);
}
static int
add_db_keys(int medridx, med_err_t *medep)
{
med_med_t med;
med_rec_t *medrp;
int i;
medrp = &med_db_medrp[medridx];
med.med_setno = medrp->med_rec_sn;
med.med_setname = medrp->med_rec_snm;
for (i = 0; i < MD_MAXSIDES; i++) {
if (medrp->med_rec_nodes[i][0] == '\0')
continue;
med.med_caller = medrp->med_rec_nodes[i];
if (add_key(&med, medridx) == -1)
return (med_error(medep, MDE_MED_DBKEYADDFAIL,
medrp->med_rec_nodes[i]));
}
/*
* Looping through the actual list of mediator hosts
* because a mediator host may not actually be a host
* in the diskset and so access for such a host needs
* to be added.
*/
for (i = 0; i < MED_MAX_HOSTS; i++) {
if ((medrp->med_rec_meds.n_cnt > 0) &&
(medrp->med_rec_meds.n_lst[i].a_cnt != 0)) {
med.med_caller =
medrp->med_rec_meds.n_lst[i].a_nm[0];
if (add_key(&med, medridx) == -1)
return (med_error(medep, MDE_MED_DBKEYADDFAIL,
medrp->med_rec_meds.n_lst[i].a_nm[0]));
}
}
return (0);
}
static int
del_db_keys(int medridx, med_err_t *medep)
{
med_med_t med;
med_rec_t *medrp;
int i;
medrp = &med_db_medrp[medridx];
med.med_setno = medrp->med_rec_sn;
med.med_setname = medrp->med_rec_snm;
for (i = 0; i < MD_MAXSIDES; i++) {
if (medrp->med_rec_nodes[i][0] == '\0')
continue;
med.med_caller = medrp->med_rec_nodes[i];
if (del_key(&med) == -1)
return (med_error(medep, MDE_MED_DBKEYDELFAIL,
medrp->med_rec_nodes[i]));
}
for (i = 0; i < MED_MAX_HOSTS; i++) {
if ((medrp->med_rec_meds.n_cnt > 0) &&
(medrp->med_rec_meds.n_lst[i].a_cnt != 0)) {
med.med_caller =
medrp->med_rec_meds.n_lst[i].a_nm[0];
if (del_key(&med) == -1)
return (med_error(medep, MDE_MED_DBKEYDELFAIL,
medrp->med_rec_meds.n_lst[i].a_nm[0]));
}
}
return (0);
}
static int
alloc_rec_buf(med_err_t *medep)
{
if (rec_buf == NULL) {
if ((rec_buf = Malloc(rec_size)) == NULL)
return (med_error(medep, errno,
"alloc_rec_buf: Malloc()"));
}
(void) memset(rec_buf, '\0', rec_size);
return (0);
}
static void
free_rec_buf(void)
{
if (rec_buf == NULL)
return;
Free(rec_buf);
rec_buf = NULL;
}
static int
write_hdr(
int dbfd,
med_err_t *medep
)
{
med_db_hdr_t dbh;
if (alloc_rec_buf(medep))
return (-1);
(void) memset(&dbh, '\0', sizeof (med_db_hdr_t));
/* Setup the new hdr record */
dbh.med_dbh_mag = MED_DB_MAGIC;
dbh.med_dbh_rev = MED_DB_REV;
dbh.med_dbh_nm = med_db_nmu;
/* Checksum new header */
crcgen(&dbh, &dbh.med_dbh_cks, sizeof (med_db_hdr_t), NULL);
/* Position to the beginning of the file */
if (lseek(dbfd, 0, SEEK_SET) == -1)
return (med_error(medep, errno, "write_hdr: lseek()"));
/* Copy the header into the output buffer */
(void) memmove(rec_buf, &dbh, sizeof (med_db_hdr_t));
/* Write out the header */
if (write(dbfd, rec_buf, rec_size) == -1)
return (med_error(medep, errno, "write_hdr: write()"));
return (0);
}
static int
write_rec(
int dbfd,
med_rec_t *medrp,
med_err_t *medep
)
{
uint_t save_flags = 0;
uint_t save_cks = 0;
if (alloc_rec_buf(medep))
return (-1);
if (medrp->med_rec_data.med_dat_fl) {
save_flags = medrp->med_rec_data.med_dat_fl;
save_cks = medrp->med_rec_data.med_dat_cks;
medrp->med_rec_data.med_dat_fl = 0;
/* Checksum the new data */
crcgen(&medrp->med_rec_data, &medrp->med_rec_data.med_dat_cks,
sizeof (med_data_t), NULL);
}
/* Checksum record */
crcgen(medrp, &medrp->med_rec_cks, sizeof (med_rec_t), NULL);
/* Load the record into the output buffer */
(void) memmove(rec_buf, medrp, sizeof (med_rec_t));
if (save_flags) {
medrp->med_rec_data.med_dat_fl = save_flags;
medrp->med_rec_data.med_dat_cks = save_cks;
/* Re-checksum the updated record */
crcgen(medrp, &medrp->med_rec_cks, sizeof (med_rec_t), NULL);
}
/* Write out the record */
if (write(dbfd, rec_buf, rec_size) == -1)
return (med_error(medep, errno, "write_rec: write()"));
return (0);
}
static int
open_dbfile(med_err_t *medep)
{
if (dbfd != -1)
return (0);
/* Open the database file */
if ((dbfd = open(MED_DB_FILE, OP_FLAGS, 0644)) == -1) {
if (errno != ENOENT)
return (med_error(medep, errno, "open_dbfile: open()"));
if ((dbfd = open(MED_DB_FILE, CR_FLAGS, 0644)) == -1)
return (med_error(medep, errno,
"open_dbfile: open(create)"));
}
/* Try to take an advisory lock on the file */
if (lockf(dbfd, F_TLOCK, (off_t)0) == -1) {
(void) med_error(medep, errno, "open_dbfile: lockf(F_TLOCK)");
medde_perror(medep, "");
med_exit(1);
}
return (0);
}
static int
close_dbfile(med_err_t *medep)
{
if (dbfd == -1)
return (0);
/* Make sure we are at the beginning of the file */
if (lseek(dbfd, 0, SEEK_SET) == -1)
return (med_error(medep, errno, "close_dbfile: lseek()"));
/* Release the advisory lock on the file */
if (lockf(dbfd, F_ULOCK, 0LL) == -1) {
(void) med_error(medep, errno, "close_dbfile: lockf(F_ULOCK)");
medde_perror(medep, "");
med_exit(1);
}
if (close(dbfd) == -1)
return (med_error(medep, errno, "close_dbfile: close()"));
dbfd = -1;
return (0);
}
static int
med_db_del_rec(med_med_t *medp, med_err_t *medep)
{
med_rec_t *medrp = NULL;
int i;
int medridx = -1;
if (! med_db_is_inited)
return (med_error(medep, MDE_MED_DBNOTINIT, "med_db_del_rec"));
if ((medridx = find_key(medp)) == -1)
return (0);
/* Delete the old keys */
if (del_db_keys(medridx, medep))
return (-1);
medrp = &med_db_medrp[medridx];
/* Mark the record in core as deleted */
medrp->med_rec_fl |= MED_RFL_DEL;
/* Decrement the used slot count */
med_db_nmu--;
/* Get ready to re-write the file */
if (ftruncate(dbfd, 0) == -1)
return (med_error(medep, errno, "med_db_del_rec: ftruncate()"));
if (write_hdr(dbfd, medep))
return (-1);
for (i = 0; i < med_db_nma; i++) {
medrp = &med_db_medrp[i];
if (medrp->med_rec_fl & MED_RFL_DEL)
continue;
/* Determine our location in the file */
if ((medrp->med_rec_foff = lseek(dbfd, 0, SEEK_CUR)) == -1)
return (med_error(medep, errno,
"med_db_del_rec: lseek()"));
if (write_rec(dbfd, medrp, medep))
return (-1);
}
return (0);
}
static int
cmp_medrec(med_rec_t *omedrp, med_rec_t *nmedrp)
{
int ret;
int i;
if (omedrp->med_rec_mag != nmedrp->med_rec_mag)
return (0);
if (omedrp->med_rec_rev != nmedrp->med_rec_rev)
return (0);
/* Can't compare checksums, since the new record has no data yet */
/* Can't compare flags, since the in-core may have golden */
if (omedrp->med_rec_sn != nmedrp->med_rec_sn)
return (0);
if (strcmp(omedrp->med_rec_snm, nmedrp->med_rec_snm) != 0)
return (0);
for (i = 0; i < MD_MAXSIDES; i++) {
if (omedrp->med_rec_nodes[i][0] == '\0' &&
nmedrp->med_rec_nodes[i][0] == '\0')
continue;
ret = strcmp(omedrp->med_rec_nodes[i],
nmedrp->med_rec_nodes[i]);
if (ret != 0)
return (0);
}
ret = memcmp(&omedrp->med_rec_meds, &nmedrp->med_rec_meds,
sizeof (md_h_arr_t));
if (ret != 0)
return (0);
return (1);
}
/*
* Exported routines
*/
int
med_db_init(med_err_t *medep)
{
int i;
int err = 0;
int ret;
struct stat statb;
med_db_hdr_t *dbhp;
med_rec_t *medrp;
int nm;
off_t cur_off;
if (med_db_is_inited)
return (0);
if (open_dbfile(medep))
return (-1);
if (fstat(dbfd, &statb) == -1)
return (med_error(medep, errno, "med_db_init: fstat()"));
/* Empty file */
if (statb.st_size == 0)
goto out;
/* File should be a multiple of the record size */
if (((int)(statb.st_size % (off_t)rec_size)) != 0)
return (med_error(medep, MDE_MED_DBSZBAD, "med_db_init"));
if (alloc_rec_buf(medep))
return (-1);
/* Read in the file header */
if ((ret = read(dbfd, rec_buf, rec_size)) == -1)
return (med_error(medep, errno, "med_db_init: read(hdr)"));
if (ret != rec_size)
return (med_error(medep, MDE_MED_DBHDRSZBAD, "med_db_init"));
/*LINTED*/
dbhp = (med_db_hdr_t *)rec_buf;
/* Header magic is not OK */
if (dbhp->med_dbh_mag != MED_DB_MAGIC)
return (med_error(medep, MDE_MED_DBHDRMAGBAD, "med_db_init"));
/* Header revision is not OK */
if (dbhp->med_dbh_rev != MED_DB_REV)
return (med_error(medep, MDE_MED_DBHDRREVBAD, "med_db_init"));
/* Header checksum is not OK */
if (crcchk(dbhp, &dbhp->med_dbh_cks, sizeof (med_db_hdr_t), NULL))
return (med_error(medep, MDE_MED_DBHDRCKSBAD, "med_db_init"));
/* File size does not add up */
if (((off_t)((dbhp->med_dbh_nm * rec_size) + rec_size))
!= statb.st_size)
return (med_error(medep, MDE_MED_DBSZBAD, "med_db_init"));
if ((nm = dbhp->med_dbh_nm) > 0) {
/* Allocate space to hold the records to be read next */
med_db_medrp = (med_rec_t *)Calloc(nm, sizeof (med_rec_t));
if (med_db_medrp == NULL)
return (med_error(medep, errno,
"med_db_init: Calloc(med_db_medrp)"));
}
/* Read in all the records */
for (i = 0; i < nm; i++) {
if ((cur_off = lseek(dbfd, 0, SEEK_CUR)) == -1) {
err = med_error(medep, errno,
"med_db_init: lseek()");
goto out;
}
(void) memset(rec_buf, '\0', rec_size);
if ((ret = read(dbfd, rec_buf, rec_size)) == -1) {
err = med_error(medep, errno,
"med_db_init: read() rec");
goto out;
}
if (ret != rec_size) {
err = med_error(medep, MDE_MED_DBRECSZBAD,
"med_db_init");
goto out;
}
/*LINTED*/
medrp = (med_rec_t *)rec_buf;
/* Record magic is not OK */
if (medrp->med_rec_mag != MED_REC_MAGIC) {
err = med_error(medep, MDE_MED_DBRECMAGBAD,
"med_db_init");
goto out;
}
/* Record revision is not OK */
if (medrp->med_rec_rev != MED_REC_REV) {
err = med_error(medep, MDE_MED_DBRECREVBAD,
"med_db_init");
goto out;
}
/* Record checksum is not OK */
ret = crcchk(medrp, &medrp->med_rec_cks, sizeof (med_rec_t),
NULL);
if (ret) {
err = med_error(medep, MDE_MED_DBRECCKSBAD,
"med_db_init");
goto out;
}
/* Record is not where it is supposed to be */
if (medrp->med_rec_foff != cur_off) {
err = med_error(medep, MDE_MED_DBRECOFFBAD,
"med_db_init");
goto out;
}
med_db_medrp[i] = *medrp; /* structure assignment */
}
/* Add the keys to access this record */
for (i = 0; i < nm; i++)
if ((err = add_db_keys(i, medep)) == -1)
goto out;
med_db_nma = nm;
med_db_nmu = nm;
out:
if (err && med_db_medrp != NULL)
Free(med_db_medrp);
if (!err)
med_db_is_inited = 1;
return (err);
}
med_rec_t *
med_db_get_rec(med_med_t *medp, med_err_t *medep)
{
int medridx = -1;
if ((medridx = find_key(medp)) == -1) {
(void) med_error(medep, MDE_MED_DBRECNOENT, "med_db_get_rec");
return (NULL);
}
return (&med_db_medrp[medridx]);
}
med_data_t *
med_db_get_data(med_med_t *medp, med_err_t *medep)
{
int medridx = -1;
if ((medridx = find_key(medp)) == -1) {
(void) med_error(medep, MDE_MED_DBRECNOENT, "med_db_get_data");
return (NULL);
}
return (&med_db_medrp[medridx].med_rec_data);
}
int
med_db_put_rec(med_med_t *medp, med_rec_t *nmedrp, med_err_t *medep)
{
med_rec_t *medrp = NULL;
med_rec_t *tmedrp = NULL;
int i;
int found = 0;
int medridx = -1;
if (! med_db_is_inited)
return (med_error(medep, MDE_MED_DBNOTINIT, "med_db_put_rec"));
if (medp->med_setno != nmedrp->med_rec_sn)
return (med_error(medep, MDE_MED_DBARGSMISMATCH,
"med_db_put_rec"));
/* See if we are still considered a mediator - is this a delete? */
for (i = 0; i < MED_MAX_HOSTS; i++) {
if (nmedrp->med_rec_meds.n_lst[i].a_cnt == 0)
continue;
if (strcmp(nmedrp->med_rec_meds.n_lst[i].a_nm[0],
mynode()) == 0) {
found = 1;
break;
}
}
/* If it is a delete, make it happen */
if (! found)
return (med_db_del_rec(medp, medep));
/* See if there is an existing record */
if ((medridx = find_key(medp)) != -1) {
medrp = &med_db_medrp[medridx];
/* Delete the old keys */
if (del_db_keys(medridx, medep))
return (-1);
/* Decrement the used slot count */
med_db_nmu--;
} else {
for (i = 0; i < MED_MAX_HOSTS; i++) {
med_med_t tmed;
if (nmedrp->med_rec_meds.n_lst[i].a_cnt == 0)
continue;
if (strcmp(nmedrp->med_rec_meds.n_lst[i].a_nm[0],
medp->med_caller) == 0)
continue;
tmed = *medp; /* structure assignment */
tmed.med_caller =
Strdup(nmedrp->med_rec_meds.n_lst[i].a_nm[0]);
medridx = find_key(&tmed);
Free(tmed.med_caller);
if (medridx != -1) {
medrp = &med_db_medrp[medridx];
if (cmp_medrec(medrp, nmedrp))
return (0);
}
}
}
/* Allocate more space if needed */
if ((med_db_nmu + 1) > med_db_nma) {
/* Allocate more space to hold the new record */
tmedrp = (med_rec_t *)Calloc((med_db_nmu + 1),
sizeof (med_rec_t));
if (tmedrp == NULL)
return (med_error(medep, errno,
"med_db_put_rec: Re-Calloc(tmedrp)"));
/* Copy the existing information into the new area */
for (i = 0; i < med_db_nma; i++)
tmedrp[i] = med_db_medrp[i]; /* structure assignment */
med_db_nmu++;
med_db_nma = med_db_nmu;
if (med_db_medrp)
Free(med_db_medrp);
med_db_medrp = tmedrp;
medridx = med_db_nma - 1;
/* Initialize */
medrp = &med_db_medrp[medridx];
medrp->med_rec_mag = MED_REC_MAGIC;
medrp->med_rec_rev = MED_REC_REV;
medrp->med_rec_sn = nmedrp->med_rec_sn;
(void) strcpy(medrp->med_rec_snm, nmedrp->med_rec_snm);
/* Calculate the record offset */
medrp->med_rec_foff = (off_t)(((med_db_nma - 1) * rec_size) +
rec_size);
} else {
/*
* We did not find the record, but have space allocated.
* Find an empty slot.
*/
if (medrp == NULL) {
for (i = 0; i < med_db_nma; i++) {
medrp = &med_db_medrp[i];
if (! (medrp->med_rec_fl & MED_RFL_DEL))
continue;
medridx = i;
/* Mark as no longer deleted */
medrp->med_rec_fl &= ~MED_RFL_DEL;
/* Initialize */
medrp->med_rec_mag = MED_REC_MAGIC;
medrp->med_rec_rev = MED_REC_REV;
medrp->med_rec_sn = nmedrp->med_rec_sn;
(void) strcpy(medrp->med_rec_snm,
nmedrp->med_rec_snm);
/* Calculate the new offset of the record */
medrp->med_rec_foff = (off_t)
((med_db_nmu * rec_size) + rec_size);
/* Clear the old data */
(void) memset(&medrp->med_rec_data, '\0',
sizeof (med_data_t));
break;
}
}
med_db_nmu++;
}
assert(medridx != -1);
/* Update the record with the new information */
medrp->med_rec_meds = nmedrp->med_rec_meds; /* structure assignment */
for (i = 0; i < MD_MAXSIDES; i++)
(void) strcpy(medrp->med_rec_nodes[i],
nmedrp->med_rec_nodes[i]);
if (write_hdr(dbfd, medep))
return (-1);
/* Position to record location */
if (lseek(dbfd, medrp->med_rec_foff, SEEK_SET) == -1)
return (med_error(medep, errno, "med_db_put_rec: lseek(rec)"));
if (write_rec(dbfd, medrp, medep))
return (-1);
/* Add the keys for this record */
if (add_db_keys(medridx, medep))
return (-1);
return (0);
}
int
med_db_put_data(med_med_t *medp, med_data_t *meddp, med_err_t *medep)
{
med_rec_t *medrp = NULL;
int medridx = -1;
if (! med_db_is_inited)
return (med_error(medep, MDE_MED_DBNOTINIT, "med_db_put_data"));
if (medp->med_setno != meddp->med_dat_sn)
return (med_error(medep, MDE_MED_DBARGSMISMATCH,
"med_db_put_data"));
if ((medridx = find_key(medp)) == -1)
return (med_error(medep, MDE_MED_DBRECNOENT,
"med_db_put_data"));
medrp = &med_db_medrp[medridx];
medrp->med_rec_data = *meddp; /* structure assignment */
/* Go to location of the record */
if (lseek(dbfd, medrp->med_rec_foff, SEEK_SET) == -1)
return (med_error(medep, errno, "med_db_put_data: lseek()"));
if (write_rec(dbfd, medrp, medep))
return (-1);
return (0);
}
int
med_db_finit(med_err_t *medep)
{
des_cache(&med_db_cache);
Free(med_db_medrp);
free_rec_buf();
if (close_dbfile(medep))
return (-1);
return (0);
}