+++ /dev/null
-/*
- * $Source$
- * $Author$
- * $Header$
- *
- * Copyright (C) 1987, 1988 by the Massachusetts Institute of Technology
- *
- */
-
-#ifndef lint
-static char *rcsid_qrtn_qc = "$Header$";
-#endif lint
-
-#include "query.h"
-#include "sms_server.h"
-
-char *Argv[16];
-
-static int ingres_errno = 0;
-extern char *whoami;
-extern FILE *journal;
-
-#define INGRES_BAD_INT 4111
-#define INGRES_BAD_DATE 4302
-#define INGRES_DEADLOCK 4700
-
-/*
- * ingerr: (supposedly) called when Ingres indicates an error.
- * I have not yet been able to get this to work to intercept a
- * database open error.
- */
-
-static int ingerr(num)
- int *num;
-{
- char buf[256];
-
- switch (*num) {
- case INGRES_BAD_INT:
- ingres_errno = SMS_INTEGER;
- break;
- case INGRES_BAD_DATE:
- ingres_errno = SMS_DATE;
- break;
- case INGRES_DEADLOCK:
- ingres_errno = SMS_DEADLOCK;
- break;
- default:
- ingres_errno = SMS_INGRES_ERR;
- com_err(whoami, SMS_INGRES_ERR, " code %d\n", *num);
- sprintf(buf, "Ingres error %d", *num);
- send_zgram("ingres_error", buf);
- return (*num);
- }
- return (0);
-}
-
-int sms_open_database()
-{
- register int i;
- char *malloc();
-
- /* initialize local argv */
- for (i = 0; i < 16; i++)
- Argv[i] = malloc(ARGLEN);
-
- IIseterr(ingerr);
-
- ingres_errno = 0;
-
- /* open the database */
-## ingres sms
- return ingres_errno;
-}
-
-int sms_close_database()
-{
-## exit
-}
-
-sms_check_access(cl, name, argc, argv_ro)
- client *cl;
- char *name;
- int argc;
- char *argv_ro[];
-{
- struct query *q;
- struct query *get_query_by_name();
-
- q = get_query_by_name(name, cl->args->sms_version_no);
- if (q == (struct query *)0)
- return(SMS_NO_HANDLE);
-
- return(sms_verify_query(cl, q, argc, argv_ro));
-}
-
-sms_process_query(cl, name, argc, argv_ro, action, actarg)
- client *cl;
- char *name;
- int argc;
- char *argv_ro[];
- int (*action)();
- char *actarg;
-{
- register struct query *q;
- register int status;
- register struct validate *v;
- char qual[256];
- char sort[32];
- char *pqual;
- char *psort;
-## char *table;
- struct save_queue *sq;
- struct query *get_query_by_name();
- int sq_save_args();
- struct save_queue *sq_create();
- char *build_sort();
-
- /* list queries command */
- if (!strcmp(name, "_list_queries")) {
- list_queries(cl->args->sms_version_no, action, actarg);
- return(SMS_SUCCESS);
- }
-
- /* help query command */
- if (!strcmp(name, "_help")) {
- if (argc < 1)
- return(SMS_ARGS);
- q = get_query_by_name(argv_ro[0], cl->args->sms_version_no);
- if (q == (struct query *)0) return(SMS_NO_HANDLE);
- help_query(q, action, actarg);
- return(SMS_SUCCESS);
- }
-
- /* get query structure, return error if named query does not exist */
- q = get_query_by_name(name, cl->args->sms_version_no);
- if (q == (struct query *)0) return(SMS_NO_HANDLE);
- v = q->validate;
-
- if (q->type != RETRIEVE)
-## begin transaction
-
- /* setup argument vector, verify access and arguments */
- if ((status = sms_verify_query(cl, q, argc, argv_ro)) != SMS_SUCCESS)
- goto out;
-
- /* perform any special query pre-processing */
- if (v && v->pre_rtn) {
- status = (*v->pre_rtn)(q, Argv, cl, 0);
- if (status != SMS_SUCCESS)
- goto out;
- }
-
- switch (q->type) {
- case RETRIEVE:
- /* for queries that do not permit wildcarding, check if row
- uniquely exists */
- if (v && v->field) {
- status = validate_row(q, Argv, v);
- if (status != SMS_EXISTS) break;
- }
-
- /* build "where" clause if needed */
- if (q->qual) {
- build_qual(q->qual, q->argc, Argv, qual);
- pqual = qual;
- } else {
- pqual = 0;
- }
-
- /* build "sort" clause if needed */
- if (v && v->valobj) {
- psort = build_sort(v, sort);
- } else {
- psort = 0;
- }
-
- /* if there is a followup routine, then we must save the results */
- /* of the first query for use by the followup routine */
- /* if q->rvar = NULL, perform post_rtn only */
- if (q->rvar) {
- if (v && v->post_rtn) {
- sq = sq_create();
- status = do_retrieve(q, pqual, psort, sq_save_args, sq);
- if (status != SMS_SUCCESS) {
- sq_destroy(sq);
- break;
- }
- status = (*v->post_rtn)(q, sq, v, action, actarg, cl);
- } else {
- /* normal retrieve */
- status = do_retrieve(q, pqual, psort, action, actarg);
- }
- if (status != SMS_SUCCESS) break;
- table = q->rtable;
-## repeat replace tblstats (retrieves = tblstats.retrieves + 1)
-## where tblstats.#table = @table
- } else {
- status = (*v->post_rtn)(q, Argv, cl, action, actarg);
- }
-
- break;
-
- case UPDATE:
- /* see if row already exists */
- if (v->field) {
- status = validate_row(q, Argv, v);
- if (status != SMS_EXISTS) break;
- }
-
- /* build "where" clause and perform update */
- /* if q->rvar = NULL, perform post_rtn only */
- if (q->rvar) {
- build_qual(q->qual, q->argc, Argv, qual);
- status = do_update(q, &Argv[q->argc], qual, action, actarg);
- if (status != SMS_SUCCESS) break;
- table = q->rtable;
-## repeat replace tblstats (updates = tblstats.updates + 1,
-## modtime = "now")
-## where tblstats.#table = @table
- }
-
- /* execute followup routine (if any) */
- if (v->post_rtn) status = (*v->post_rtn)(q, Argv, cl);
-
- break;
-
- case APPEND:
- /* see if row already exists */
- if (v->field) {
- status = validate_row(q, Argv, v);
- if (status != SMS_NO_MATCH) break;
- }
-
- /* increment id number if necessary */
- if (v->object_id) {
- status = set_next_object_id(v->object_id, q->rtable);
- if (status != SMS_SUCCESS) break;
- }
-
- /* build "where" clause if needed */
- if (q->qual) {
- build_qual(q->qual, q->argc, Argv, qual);
- pqual = qual;
- } else {
- pqual = 0;
- }
-
- /* perform the append */
- /* if q->rvar = NULL, perform post_rtn only */
- if (q->rvar) {
- status = do_append(q, &Argv[q->argc], pqual, action, actarg);
- if (status != SMS_SUCCESS) break;
- table = q->rtable;
-## repeat replace tblstats (appends = tblstats.appends + 1,
-## modtime = "now")
-## where tblstats.#table = @table
- }
-
- /* execute followup routine */
- if (v->post_rtn) status = (*v->post_rtn)(q, Argv, cl);
- break;
-
- case DELETE:
- /* see if row already exists */
- if (v->field) {
- status = validate_row(q, Argv, v);
- if (status != SMS_EXISTS) break;
- }
-
- /* build "where" clause and perform delete */
- /* if q->rvar = NULL, perform post_rtn only */
- if (q->rvar) {
- build_qual(q->qual, q->argc, Argv, qual);
- status = do_delete(q, qual, action, actarg);
- if (status != SMS_SUCCESS) break;
- table = q->rtable;
-## repeat replace tblstats (deletes = tblstats.deletes + 1,
-## modtime = "now")
-## where tblstats.#table = @table
- }
-
- /* execute followup routine */
- if (v->post_rtn) status = (*v->post_rtn)(q, Argv, cl);
- break;
-
- }
-
-out:
- if (q->type != RETRIEVE) {
- if (status == SMS_SUCCESS) {
-## end transaction /* commit to this */
- if (journal) {
- char buf[1024], *bp;
- int i;
- extern time_t now;
-
- fprintf(journal, "%% %s %s %s",
- cl->clname, cl->entity, ctime(&now));
- fprintf(journal, "%s[%d] ", q->name, cl->args->sms_version_no);
- for (i = 0; i < argc; i++) {
- if (i != 0) {
- putc(' ', journal);
- }
- requote(buf, argv_ro[i], sizeof(buf));
- fputs(buf, journal);
- }
- putc('\n', journal);
- fflush(journal);
- }
- } else {
-## abort /* it never happened */
- }
- }
-
- if (status != SMS_SUCCESS && log_flags & LOG_RES)
- com_err(whoami, status, " (Query failed)");
- return(status);
-}
-
-build_qual(fmt, argc, argv, qual)
- char *fmt;
- int argc;
- char *argv[];
- char *qual;
-{
- register char *c;
- register int i;
- char *args[4];
- char *index();
-
- c = fmt;
- for (i = 0; i < argc; i++) {
- c = index(c, '%');
- if (c++ == (char *)0) return(SMS_ARGS);
- if (*c == 's')
- args[i] = argv[i];
- else if (*c == 'd')
- *(int *)&args[i] = *(int *)argv[i]; /* sigh */
- else
- return(SMS_INGRES_ERR);
- }
-
- switch (argc) {
- case 0:
- strcpy(qual, fmt);
- break;
-
- case 1:
- sprintf(qual, fmt, args[0]);
- break;
-
- case 2:
- sprintf(qual, fmt, args[0], args[1]);
- break;
-
- case 3:
- sprintf(qual, fmt, args[0], args[1], args[2]);
- break;
-
- case 4:
- sprintf(qual, fmt, args[0], args[1], args[2], args[3]);
- break;
- }
- return(SMS_SUCCESS);
-}
-
-char *
-build_sort(v, sort)
- register struct validate *v;
- char *sort;
-{
- register struct valobj *vo;
- register int n;
- char elem[16];
-
- n = v->objcnt;
- vo = v->valobj;
- *sort = 0;
-
- while (--n >= 0) {
- if (vo->type == V_SORT) {
- sprintf(elem, "RET_VAR%d", vo->index + 1);
- if (*sort) strcat(sort, ", ");
- strcat(sort, elem);
- }
- vo++;
- }
-
- return ((*sort) ? sort : 0);
-}
-
-
-/* Build arguement vector, verify query and arguments */
-
-sms_verify_query(cl, q, argc, argv_ro)
- client *cl;
- struct query *q;
- int argc;
- char *argv_ro[];
-{
- register int argreq;
- register int status;
- register struct validate *v = q->validate;
- register int i;
- register int privileged = 0;
-
- /* copy the arguments into a local argv that we can modify */
- for (i = 0; i < argc; i++) {
- if (strlen(argv_ro[i]) < ARGLEN)
- strcpy(Argv[i], argv_ro[i]);
- else
- return(SMS_ARG_TOO_LONG);
- }
-
- /* check initial query access */
- status = check_query_access(q, Argv, cl);
- if (status != SMS_SUCCESS && status != SMS_PERM)
- return(status);
- if (status == SMS_SUCCESS)
- privileged++;
-
- /* check argument count */
- argreq = q->argc;
- if (q->type == UPDATE || q->type == APPEND) argreq += q->vcnt;
- if (argc != argreq) return(SMS_ARGS);
-
- /* validate arguments */
- if (v && v->valobj) {
- status = validate_fields(q, Argv, v->valobj, v->objcnt);
- if (status != SMS_SUCCESS) return(status);
- }
-
- /* perform special query access check */
- if (!privileged && v && v->acs_rtn) {
- status = (*v->acs_rtn)(q, Argv, cl);
- if (status != SMS_SUCCESS && status != SMS_PERM)
- return(status);
- if (status == SMS_SUCCESS)
- privileged++;
- }
-
- return(privileged ? SMS_SUCCESS : SMS_PERM);
-}
-
-check_query_access(q, argv, cl)
- struct query *q;
- char *argv[];
- client *cl;
-##{
-## char *name;
-## int acl_id;
-## int exists;
-## int rowcount;
-## int errorno;
-## static int def_uid;
- int status;
- int client_id;
- char *client_type;
-
- /* get query access control list */
- name = q->shortname;
-## repeat retrieve (acl_id = capacls.list_id) where capacls.tag = @name
-## inquire_equel (rowcount = "rowcount", errorno = "errorno")
- if (errorno != 0) return(SMS_INGRES_ERR);
- if (rowcount == 0) return(SMS_PERM);
-
- /* initialize default uid */
- if (def_uid == 0) {
-## retrieve (def_uid = users.users_id) where users.login = "default"
- }
-
- /* check for default access */
-## range of m is members
-## repeat retrieve (exists = any(m.#member_id where m.list_id = @acl_id and
-## m.member_type = "USER" and m.#member_id = def_uid))
- if (exists) return(SMS_SUCCESS);
-
- /* parse client name */
- status = get_client(cl, &client_type, &client_id);
- if (status != SMS_SUCCESS) return(status);
-
- /* see if client is in the list (or any of its sub-lists) */
- exists = find_member("LIST", acl_id, client_type, client_id, 0);
- return ((exists) ? SMS_SUCCESS : SMS_PERM);
-##}
-
-get_client(cl, client_type, client_id)
- client *cl;
- char **client_type;
- int *client_id;
-##{
- struct krbname *krb;
-## int member_id;
-## char *name;
-## int rowcount;
-
- if (cl->clname == NULL)
- return SMS_PERM;
-
- /* for now ignore instances */
- krb = &cl->kname;
-
- /* if client is from local realm, get users_id */
- if (!strcmp(krb->realm, krb_realm)) {
- *client_id = cl->users_id;
- *client_type = "USER";
- return(SMS_SUCCESS);
- }
-
- /* otherwise use string_id */
- name = cl->clname;
-## repeat retrieve (member_id = strings.string_id)
-## where strings.string = @name
-
- /* make sure we found a users or string id */
-## inquire_equel (rowcount = "rowcount")
- if (rowcount == 0) return(SMS_PERM);
-
- *client_type = "STRING";
- *client_id = member_id;
- return(SMS_SUCCESS);
-##}
-
-##find_member(list_type, list_id, member_type, member_id, sq)
- char *list_type;
-## int list_id;
-## char *member_type;
-## int member_id;
- struct save_queue *sq;
-##{
-## int exists;
-## int sublist;
- int child;
- struct save_queue *sq_create();
-
- /* see if client is a direct member of list */
-## repeat retrieve (exists = any(m.#member_id where
-## m.#list_id = @list_id and
-## m.#member_type = @member_type and
-## m.#member_id = @member_id))
- if (exists) return(1);
-
- /* are there any sub-lists? */
-## repeat retrieve (exists = any(m.#member_id where m.#list_id = @list_id and
-## m.#member_type = "LIST"))
- if (!exists) return(0);
-
- /* yes; now recurse through sublists */
-
- /* create a save queue */
- if (sq == (struct save_queue *)0) {
- sq = sq_create();
- child = 0;
- } else {
- child = 1;
- }
-
- /* save all sublist ids */
-## range of m is members
-## retrieve (sublist = m.#member_id)
-## where m.#list_id = list_id and m.#member_type = "LIST"
-## {
- sq_save_unique_data(sq, sublist);
-## }
-
- if (child) return(0);
-
- /* at top-level, check sub-lists for client (breadth-first search) */
- while (sq_get_data(sq, &sublist)) {
- exists = find_member(list_type, sublist, member_type, member_id, sq);
- if (exists) {
- sq_destroy(sq);
- return(1);
- }
- }
- sq_destroy(sq);
- return(0);
-##}
-
-
-do_retrieve(q, pqual, psort, action, actarg)
- register struct query *q;
- char *pqual;
- char *psort;
- int (*action)();
- char *actarg;
-##{
-## char *rvar;
-## char *rtable;
-## char *cqual;
-## char *csort;
-## int rowcount;
-## int errorno;
- static char **vaddrs = (char **)NULL;
-
- if (!vaddrs) {
- register int i;
-
- if ((vaddrs = (char **)malloc(sizeof(char *) * QMAXARGS)) == NULL) {
- com_err(whoami, SMS_NO_MEM, "setting up static argv");
- exit(1);
- }
- for (i = 0; i < QMAXARGS; i++) {
- if ((vaddrs[i] = malloc(QMAXARGSIZE)) == NULL) {
- com_err(whoami, SMS_NO_MEM, "setting up static argv");
- exit(1);
- }
- }
- }
-
- if (q->rvar) {
- rvar = q->rvar;
- rtable = q->rtable;
-## range of rvar is rtable
- }
-
- if (psort) {
- csort = psort;
- if (pqual) {
- cqual = pqual;
-## retrieve unique (param (q->tlist, vaddrs)) where cqual
-## sort by csort
-## {
- (*action)(q->vcnt, vaddrs, actarg);
-## }
- } else {
-## retrieve unique (param (q->tlist, vaddrs))
-## sort by csort
-## {
- (*action)(q->vcnt, vaddrs, actarg);
-## }
- }
-
- } else {
- if (pqual) {
- cqual = pqual;
-## retrieve unique (param (q->tlist, vaddrs)) where cqual
-## {
- (*action)(q->vcnt, vaddrs, actarg);
-## }
- } else {
-## retrieve unique (param (q->tlist, vaddrs))
-## {
- (*action)(q->vcnt, vaddrs, actarg);
-## }
- }
- }
-
-## inquire_equel (rowcount = "rowcount", errorno = "errorno")
- if (errorno != 0) return(SMS_INGRES_ERR);
- return ((rowcount == 0) ? SMS_NO_MATCH : SMS_SUCCESS);
-##}
-
-do_update(q, argv, qual, action, actarg)
- register struct query *q;
- char *argv[];
- char *qual;
- int (*action)();
- char *actarg;
-##{
-## char *rvar;
-## char *rtable;
-## char *cqual;
-## int errorno;
-
- rvar = q->rvar;
- rtable = q->rtable;
-## range of rvar is rtable
-
- cqual = qual;
-## replace rvar (param (q->tlist, argv))
-## where cqual
-
-## inquire_equel (errorno = "errorno")
- if (errorno == INGRES_BAD_INT)
- return(SMS_INTEGER);
- else if (errorno != 0)
- return(SMS_INGRES_ERR);
- return(SMS_SUCCESS);
-##}
-
-do_append(q, argv, pqual, action, actarg)
- register struct query *q;
- char *argv[];
- char *pqual;
- int (*action)();
- char *actarg;
-##{
-## char *rvar;
-## char *rtable;
-## char *cqual;
-## int errorno;
-
- rvar = q->rvar;
- rtable = q->rtable;
-## range of rvar is rtable
-
- if (pqual) {
- cqual = pqual;
-## append to rtable (param (q->tlist, argv)) where cqual
- } else {
-## append to rtable (param (q->tlist, argv))
- }
-
-## inquire_equel (errorno = "errorno")
- if (errorno == INGRES_BAD_INT)
- return(SMS_INTEGER);
- else if (errorno != 0)
- return(SMS_INGRES_ERR);
- return(SMS_SUCCESS);
-##}
-
-do_delete(q, qual, action, actarg)
- register struct query *q;
- char *qual;
- int (*action)();
- char *actarg;
-##{
-## char *rvar;
-## char *rtable;
-## char *cqual;
-## int errorno;
-
- rvar = q->rvar;
- rtable = q->rtable;
-## range of rvar is rtable
-
- cqual = qual;
-## delete rvar where cqual
-
-## inquire_equel (errorno = "errorno")
- if (errorno != 0) return(SMS_INGRES_ERR);
- return(SMS_SUCCESS);
-##}
-
-
-/**
- ** set_next_object_id - set next object id in values table
- **
- ** Inputs: object - object name in values table and in objects
- ** table - name of table objects are found in
- **
- ** - called before an APPEND operation to set the next object id to
- ** be used for the new record to the next free value
- **
- **/
-
-set_next_object_id(object, table)
- char *object;
- char *table;
-##{
-## char *name, *tbl;
-## int rowcount, exists, value;
-
- name = object;
- tbl = table;
-## range of v is values
-## repeat retrieve (value = v.#value) where v.#name = @name
-## inquire_equel(rowcount = "rowcount")
- if (rowcount != 1)
- return(SMS_NO_ID);
-
-## retrieve (exists = any(tbl.name where tbl.name = value))
-## inquire_equel(rowcount = "rowcount")
- if (rowcount != 1)
- return(SMS_NO_ID);
- while (exists) {
- value++;
- if (value > MAX_ID_VALUE)
- value = MIN_ID_VALUE;
-## retrieve (exists = any(tbl.name where tbl.name = value))
- }
-
- if (LOG_RES)
- com_err(whoami, 0, "setting ID %s to %d", name, value);
-## repeat replace v (#value = @value) where v.#name = @name
- return(SMS_SUCCESS);
-##}
-
-
-/* For now this just checks the argc's. It should also see that there
- * are no duplicate names.
- */
-
-sanity_check_queries()
-{
- register int i;
- int maxv = 0, maxa = 0;
- extern int QueryCount1, QueryCount2;
- extern struct query Queries1[], Queries2[];
-#define MAX(x,y) ((x) > (y) ? (x) : (y))
-
- for (i = 0; i < QueryCount1; i++) {
- maxv = MAX(maxv, Queries1[i].vcnt);
- maxa = MAX(maxa, Queries1[i].argc);
- }
- for (i = 0; i < QueryCount2; i++) {
- maxv = MAX(maxv, Queries2[i].vcnt);
- maxa = MAX(maxa, Queries2[i].argc);
- }
- if (MAX(maxv, maxa) > QMAXARGS) {
- com_err(whoami, 0, "A query has more args than QMAXARGS");
- exit(1);
- }
-}
-
-
-/*
- * Local Variables:
- * mode: c
- * c-indent-level: 4
- * c-continued-statement-offset: 4
- * c-brace-offset: -4
- * c-argdecl-indent: 4
- * c-label-offset: -4
- * End:
- */
-
andersk / moira.git / blobdiff