-/* $Cambridge: exim/src/src/lookups/oracle.c,v 1.6 2009/11/16 19:50:38 nm4 Exp $ */
-
/*************************************************
* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2009 */
+/* Copyright (c) The Exim Maintainers 2020 - 2022 */
+/* Copyright (c) University of Cambridge 1995 - 2015 */
/* See the file NOTICE for conditions of use and distribution. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/* Interface to an Oracle database. This code was originally supplied by
Paul Kelly, but I have hacked it around for various reasons, and tried to add
/* See local README for interface description. */
static void *
-oracle_open(uschar *filename, uschar **errmsg)
+oracle_open(const uschar * filename, uschar ** errmsg)
{
return (void *)(1); /* Just return something non-null */
}
while ((cn = oracle_connections) != NULL)
{
oracle_connections = cn->next;
- DEBUG(D_lookup) debug_printf("close ORACLE connection: %s\n", cn->server);
+ DEBUG(D_lookup) debug_printf_indent("close ORACLE connection: %s\n", cn->server);
ologof(cn->handle);
}
}
Ora_Define *def = NULL;
void *hda = NULL;
-int i;
-int ssize = 0;
-int offset = 0;
int yield = DEFER;
unsigned int num_fields = 0;
-uschar *result = NULL;
+gstring * result = NULL;
oracle_connection *cn = NULL;
uschar *server_copy = NULL;
uschar *sdata[4];
-uschar tmp[1024];
/* Disaggregate the parameters from the server argument. The order is host,
database, user, password. We can write to the string, since it is in a
nextinlist temporary buffer. The copy of the string that is used for caching
has the password removed. This copy is also used for debugging output. */
-for (i = 3; i > 0; i--)
+for (int i = 3; i > 0; i--)
{
uschar *pp = Ustrrchr(server, '/');
if (pp == NULL)
/* See if we have a cached connection to the server */
-for (cn = oracle_connections; cn != NULL; cn = cn->next)
- {
+for (cn = oracle_connections; cn; cn = cn->next)
if (strcmp(cn->server, server_copy) == 0)
{
oracle_handle = cn->handle;
hda = cn->hda_mem;
break;
}
- }
/* If no cached connection, we must set one up */
-if (cn == NULL)
+if (!cn)
{
- DEBUG(D_lookup) debug_printf("ORACLE new connection: host=%s database=%s "
+ DEBUG(D_lookup) debug_printf_indent("ORACLE new connection: host=%s database=%s "
"user=%s\n", sdata[0], sdata[1], sdata[2]);
/* Get store for a new connection, initialize it, and connect to the server */
- oracle_handle = store_get(sizeof(struct cda_def));
- hda = store_get(HDA_SIZE);
+ oracle_handle = store_get(sizeof(struct cda_def), GET_UNTAINTED);
+ hda = store_get(HDA_SIZE, GET_UNTAINTED);
memset(hda,'\0',HDA_SIZE);
/*
/* Add the connection to the cache */
- cn = store_get(sizeof(oracle_connection));
+ cn = store_get(sizeof(oracle_connection), GET_UNTAINTED);
cn->server = server_copy;
cn->handle = oracle_handle;
cn->next = oracle_connections;
else
{
DEBUG(D_lookup)
- debug_printf("ORACLE using cached connection for %s\n", server_copy);
+ debug_printf_indent("ORACLE using cached connection for %s\n", server_copy);
}
/* We have a connection. Open a cursor and run the query */
-cda = store_get(sizeof(Cda_Def));
+cda = store_get(sizeof(Cda_Def), GET_UNTAINTED);
if (oopen(cda, oracle_handle, (text *)0, -1, -1, (text *)0, -1) != 0)
{
/* Find the number of fields returned and sort out their types. If the number
is one, we don't add field names to the data. Otherwise we do. */
-def = store_get(sizeof(Ora_Define)*MAX_SELECT_LIST_SIZE);
-desc = store_get(sizeof(Ora_Describe)*MAX_SELECT_LIST_SIZE);
+def = store_get(sizeof(Ora_Define)*MAX_SELECT_LIST_SIZE, GET_UNTAINTED);
+desc = store_get(sizeof(Ora_Describe)*MAX_SELECT_LIST_SIZE, GET_UNTAINTED);
if ((num_fields = describe_define(cda,def,desc)) == -1)
{
ofetch(cda);
if(cda->rc == NO_DATA_FOUND) break;
- if (result != NULL) result = string_cat(result, &ssize, &offset, "\n", 1);
+ if (result) result = string_catn(result, "\n", 1);
/* Single field - just add on the data */
if (num_fields == 1)
- result = string_cat(result, &ssize, &offset, def[0].buf, def[0].col_retlen);
+ result = string_catn(result, def[0].buf, def[0].col_retlen);
/* Multiple fields - precede by file name, removing {lead,trail}ing WS */
- else for (i = 0; i < num_fields; i++)
+ else for (int i = 0; i < num_fields; i++)
{
int slen;
- uschar *s = US desc[i].buf;
+ uschar * s = US desc[i].buf;
- while (*s != 0 && isspace(*s)) s++;
+ Uskip_whitespace(&s);
slen = Ustrlen(s);
while (slen > 0 && isspace(s[slen-1])) slen--;
- result = string_cat(result, &ssize, &offset, s, slen);
- result = string_cat(result, &ssize, &offset, US"=", 1);
+ result = string_catn(result, s, slen);
+ result = string_catn(result, US"=", 1);
- /* int and float type wont ever need escaping. Otherwise, quote the value
+ /* int and float type won't ever need escaping. Otherwise, quote the value
if it contains spaces or is empty. */
if (desc[i].dbtype != INT_TYPE && desc[i].dbtype != FLOAT_TYPE &&
(def[i].buf[0] == 0 || strchr(def[i].buf, ' ') != NULL))
{
- int j;
- result = string_cat(result, &ssize, &offset, "\"", 1);
- for (j = 0; j < def[i].col_retlen; j++)
+ result = string_catn(result, "\"", 1);
+ for (int j = 0; j < def[i].col_retlen; j++)
{
if (def[i].buf[j] == '\"' || def[i].buf[j] == '\\')
- result = string_cat(result, &ssize, &offset, "\\", 1);
- result = string_cat(result, &ssize, &offset, def[i].buf+j, 1);
+ result = string_catn(result, "\\", 1);
+ result = string_catn(result, def[i].buf+j, 1);
}
- result = string_cat(result, &ssize, &offset, "\"", 1);
+ result = string_catn(result, "\"", 1);
}
else switch(desc[i].dbtype)
{
case INT_TYPE:
- sprintf(CS tmp, "%d", def[i].int_buf);
- result = string_cat(result, &ssize, &offset, tmp, Ustrlen(tmp));
- break;
+ result = string_cat(result, string_sprintf("%d", def[i].int_buf));
+ break;
case FLOAT_TYPE:
- sprintf(CS tmp, "%f", def[i].flt_buf);
- result = string_cat(result, &ssize, &offset, tmp, Ustrlen(tmp));
- break;
+ result = string_cat(result, string_sprintf("%f", def[i].flt_buf));
+ break;
case STRING_TYPE:
- result = string_cat(result, &ssize, &offset, def[i].buf,
- def[i].col_retlen);
- break;
+ result = string_catn(result, def[i].buf, def[i].col_retlen);
+ break;
default:
- *errmsg = string_sprintf("ORACLE: unknown field type %d", desc[i].dbtype);
- *defer_break = FALSE;
- result = NULL;
- goto ORACLE_EXIT;
+ *errmsg = string_sprintf("ORACLE: unknown field type %d", desc[i].dbtype);
+ *defer_break = FALSE;
+ result = NULL;
+ goto ORACLE_EXIT;
}
- result = string_cat(result, &ssize, &offset, " ", 1);
+ result = string_catn(result, " ", 1);
}
}
Otherwise, we must terminate the string which has been built; string_cat()
always leaves enough room for a terminating zero. */
-if (result == NULL)
+if (!result)
{
yield = FAIL;
*errmsg = "ORACLE: no data found";
}
else
- {
- result[offset] = 0;
- store_reset(result + offset + 1);
- }
+ gstring_release_unused(result);
/* Get here by goto from various error checks. */
ORACLE_EXIT_NO_VALS:
-/* Non-NULL result indicates a sucessful result */
+/* Non-NULL result indicates a successful result */
-if (result != NULL)
+if (result)
{
- *resultptr = result;
+ *resultptr = string_from_gstring(result);
return OK;
}
else
{
- DEBUG(D_lookup) debug_printf("%s\n", *errmsg);
+ DEBUG(D_lookup) debug_printf_indent("%s\n", *errmsg);
return yield; /* FAIL or DEFER */
}
}
deferred with a retryable error. */
static int
-oracle_find(void *handle, uschar *filename, uschar *query, int length,
- uschar **result, uschar **errmsg, BOOL *do_cache)
+oracle_find(void * handle, const uschar * filename, uschar * query, int length,
+ uschar ** result, uschar ** errmsg, uint * do_cache, const uschar * opts)
{
int sep = 0;
uschar *server;
uschar *list = oracle_servers;
-uschar buffer[512];
do_cache = do_cache; /* Placate picky compilers */
-DEBUG(D_lookup) debug_printf("ORACLE query: %s\n", query);
+DEBUG(D_lookup) debug_printf_indent("ORACLE query: %s\n", query);
-while ((server = string_nextinlist(&list, &sep, buffer, sizeof(buffer))) != NULL)
+while ((server = string_nextinlist(&list, &sep, NULL, 0)))
{
BOOL defer_break;
int rc = perform_oracle_search(query, server, result, errmsg, &defer_break);
if (rc != DEFER || defer_break) return rc;
}
-if (oracle_servers == NULL)
+if (!oracle_servers)
*errmsg = "no ORACLE servers defined (oracle_servers option)";
return DEFER;
Arguments:
s the string to be quoted
opt additional option text or NULL if none
+ idx lookup type index
Returns: the processed string or NULL for a bad option
*/
static uschar *
-oracle_quote(uschar *s, uschar *opt)
+oracle_quote(uschar * s, uschar * opt, unsigned idx)
{
-register int c;
-int count = 0;
-uschar *t = s;
-uschar *quoted;
+int c, count = 0;
+uschar * t = s, * quoted;
-if (opt != NULL) return NULL; /* No options are recognized */
+if (opt) return NULL; /* No options are recognized */
-while ((c = *t++) != 0)
+while ((c = *t++))
if (strchr("\n\t\r\b\'\"\\", c) != NULL) count++;
-if (count == 0) return s;
-t = quoted = store_get((int)strlen(s) + count + 1);
+t = quoted = store_get_quoted((int)Ustrlen(s) + count + 1, s, idx);
-while ((c = *s++) != 0)
+while ((c = *s++))
{
if (strchr("\n\t\r\b\'\"\\", c) != NULL)
{
return quoted;
}
+
+/*************************************************
+* Version reporting entry point *
+*************************************************/
+
+/* See local README for interface description. */
+
+#include "../version.h"
+
+gstring *
+oracle_version_report(gstring * g)
+{
+#ifdef DYNLOOKUP
+g = string_fmt_append(g, "Library version: Oracle: Exim version %s\n", EXIM_VERSION_STR);
+#endif
+return g;
+}
+
+
static lookup_info _lookup_info = {
- US"oracle", /* lookup name */
- lookup_querystyle, /* query-style lookup */
- oracle_open, /* open function */
- NULL, /* check function */
- oracle_find, /* find function */
- NULL, /* no close function */
- oracle_tidy, /* tidy function */
- oracle_quote /* quoting function */
+ .name = US"oracle", /* lookup name */
+ .type = lookup_querystyle, /* query-style lookup */
+ .open = oracle_open, /* open function */
+ .check = NULL, /* check function */
+ .find = oracle_find, /* find function */
+ .close = NULL, /* no close function */
+ .tidy = oracle_tidy, /* tidy function */
+ .quote = oracle_quote, /* quoting function */
+ .version_report = oracle_version_report /* version reporting */
};
#ifdef DYNLOOKUP
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