mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-08-18 16:53:24 +02:00
371 lines
5.9 KiB
C
371 lines
5.9 KiB
C
#include <time.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "msql.h"
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#include "libpq-fe.h"
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#define HNDMAX 10
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PGconn *PGh[HNDMAX] = {
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NULL, NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL, NULL
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};
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#define E_NOHANDLERS 0
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char *msqlErrors[] = {
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"Out of database handlers."
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};
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char msqlErrMsg[BUFSIZ],
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*tfrom = "dunno";
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PGresult *queryres = NULL;
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int
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msqlConnect(char *host)
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{
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int count;
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for (count = 0; count < HNDMAX; count++)
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if (PGh[count] == NULL)
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break;
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if (count == HNDMAX)
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{
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strncpy(msqlErrMsg, msqlErrors[E_NOHANDLERS], BUFSIZ);
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return -1;
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}
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PGh[count] = malloc(sizeof(PGconn));
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PGh[count]->pghost = host ? strdup(host) : NULL;
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return count;
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}
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int
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msqlSelectDB(int handle, char *dbname)
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{
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char *options = calloc(1, BUFSIZ);
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char *e = getenv("PG_OPTIONS");
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if (e == NULL)
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e = "";
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if (PGh[handle]->pghost)
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{
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strcat(options, "host=");
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strncat(options, PGh[handle]->pghost, BUFSIZ);
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strncat(options, " ", BUFSIZ);
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free(PGh[handle]->pghost);
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PGh[handle]->pghost = NULL;
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}
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strncat(options, "dbname=", BUFSIZ);
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strncat(options, dbname, BUFSIZ);
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strncat(options, " ", BUFSIZ);
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strncat(options, e, BUFSIZ);
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free(PGh[handle]);
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PGh[handle] = PQconnectdb(options);
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free(options);
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strncpy(msqlErrMsg, PQerrorMessage(PGh[handle]), BUFSIZ);
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return (PQstatus(PGh[handle]) == CONNECTION_BAD ? -1 : 0);
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}
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int
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msqlQuery(int handle, char *query)
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{
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char *tq = strdup(query);
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char *p = tq;
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PGresult *res;
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PGconn *conn = PGh[handle];
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ExecStatusType rcode;
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res = PQexec(conn, p);
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rcode = PQresultStatus(res);
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if (rcode == PGRES_TUPLES_OK)
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{
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queryres = res;
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return PQntuples(res);
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}
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else if (rcode == PGRES_FATAL_ERROR || rcode == PGRES_NONFATAL_ERROR)
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{
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PQclear(res);
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queryres = NULL;
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return -1;
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}
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else
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{
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PQclear(res);
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queryres = NULL;
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return 0;
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}
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}
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int
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msqlCreateDB(int a, char *b)
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{
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char tbuf[BUFSIZ];
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snprintf(tbuf, BUFSIZ, "create database %s", b);
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return msqlQuery(a, tbuf) >= 0 ? 0 : -1;
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}
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int
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msqlDropDB(int a, char *b)
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{
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char tbuf[BUFSIZ];
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snprintf(tbuf, BUFSIZ, "drop database %s", b);
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return msqlQuery(a, tbuf) >= 0 ? 0 : -1;
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}
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int
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msqlShutdown(int a)
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{
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}
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int
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msqlGetProtoInfo(void)
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{
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}
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int
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msqlReloadAcls(int a)
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{
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}
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char *
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msqlGetServerInfo(void)
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{
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}
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char *
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msqlGetHostInfo(void)
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{
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}
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char *
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msqlUnixTimeToDate(time_t date)
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{
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}
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char *
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msqlUnixTimeToTime(time_t time)
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{
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}
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void
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msqlClose(int a)
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{
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PQfinish(PGh[a]);
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PGh[a] = NULL;
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if (queryres)
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{
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free(queryres);
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queryres = NULL;
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}
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}
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void
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msqlDataSeek(m_result * result, int count)
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{
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int c;
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result->cursor = result->queryData;
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for (c = 1; c < count; c++)
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if (result->cursor->next)
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result->cursor = result->cursor->next;
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}
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void
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msqlFieldSeek(m_result * result, int count)
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{
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int c;
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result->fieldCursor = result->fieldData;
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for (c = 1; c < count; c++)
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if (result->fieldCursor->next)
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result->fieldCursor = result->fieldCursor->next;
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}
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void
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msqlFreeResult(m_result * result)
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{
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if (result)
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{
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/* Clears fields */
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free(result->fieldData);
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result->cursor = result->queryData;
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while (result->cursor)
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{
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int c;
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m_row m = result->cursor->data;
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for (c = 0; m[c]; c++)
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free(m[c]);
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result->cursor = result->cursor->next;
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}
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free(result->queryData);
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free(result);
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}
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}
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m_row
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msqlFetchRow(m_result * row)
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{
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m_data *r = row->cursor;
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if (r)
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{
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row->cursor = row->cursor->next;
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return (m_row) r->data;
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}
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return (m_row) NULL;
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}
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m_seq *
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msqlGetSequenceInfo(int a, char *b)
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{
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}
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m_field *
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msqlFetchField(m_result * mr)
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{
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m_field *m = (m_field *) mr->fieldCursor;
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if (m)
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{
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mr->fieldCursor = mr->fieldCursor->next;
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return m;
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}
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return NULL;
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}
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m_result *
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msqlListDBs(int a)
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{
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m_result *m;
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if (msqlQuery(a, "select datname from pg_database") > 0)
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{
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m = msqlStoreResult();
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return m;
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}
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else
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return NULL;
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}
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m_result *
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msqlListTables(int a)
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{
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m_result *m;
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char tbuf[BUFSIZ];
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snprintf(tbuf, BUFSIZ,
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"select relname from pg_class where relkind='r' and relowner=%d",
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geteuid());
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if (msqlQuery(a, tbuf) > 0)
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{
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m = msqlStoreResult();
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return m;
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}
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else
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return NULL;
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}
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m_result *
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msqlListFields(int a, char *b)
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{
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}
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m_result *
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msqlListIndex(int a, char *b, char *c)
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{
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m_result *m;
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char tbuf[BUFSIZ];
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snprintf(tbuf, BUFSIZ,
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"select relname from pg_class where relkind='i' and relowner=%d",
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geteuid());
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if (msqlQuery(a, tbuf) > 0)
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{
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m = msqlStoreResult();
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return m;
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}
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else
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return NULL;
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}
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m_result *
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msqlStoreResult(void)
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{
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if (queryres)
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{
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m_result *mr = malloc(sizeof(m_result));
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m_fdata *mf;
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m_data *md;
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int count;
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mr->queryData = mr->cursor = NULL;
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mr->numRows = PQntuples(queryres);
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mr->numFields = PQnfields(queryres);
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mf = calloc(PQnfields(queryres), sizeof(m_fdata));
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for (count = 0; count < PQnfields(queryres); count++)
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{
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(m_fdata *) (mf + count)->field.name = strdup(PQfname(queryres, count));
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(m_fdata *) (mf + count)->field.table = tfrom;
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(m_fdata *) (mf + count)->field.type = CHAR_TYPE;
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(m_fdata *) (mf + count)->field.length = PQfsize(queryres, count);
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(m_fdata *) (mf + count)->next = (m_fdata *) (mf + count + 1);
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}
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(m_fdata *) (mf + count - 1)->next = NULL;
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md = calloc(PQntuples(queryres), sizeof(m_data));
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for (count = 0; count < PQntuples(queryres); count++)
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{
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m_row rows = calloc(PQnfields(queryres) * sizeof(m_row) + 1, 1);
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int c;
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for (c = 0; c < PQnfields(queryres); c++)
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rows[c] = strdup(PQgetvalue(queryres, count, c));
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(m_data *) (md + count)->data = rows;
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(m_data *) (md + count)->width = PQnfields(queryres);
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(m_data *) (md + count)->next = (m_data *) (md + count + 1);
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}
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(m_data *) (md + count - 1)->next = NULL;
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mr->queryData = mr->cursor = md;
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mr->fieldCursor = mr->fieldData = mf;
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return mr;
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}
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else
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return NULL;
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}
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time_t
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msqlDateToUnixTime(char *a)
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{
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}
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time_t
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msqlTimeToUnixTime(char *b)
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{
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}
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char *
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msql_tmpnam(void)
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{
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return tmpnam("/tmp/msql.XXXXXX");
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}
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int
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msqlLoadConfigFile(char *a)
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{
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}
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