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Minor adjustments to UDF source code and file system structure

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This commit is contained in:
Bernardo Damele 2010-01-14 00:46:48 +00:00
parent 2915b5d7e9
commit 1100b37feb
9 changed files with 40 additions and 208 deletions
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6
extra/mysqludfsys/linux/Makefile
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@ -1,6 +1,6 @@
LIBDIR=/usr/lib
install:
gcc -Wall -I/usr/include/mysql -O1 -shared src/lib_mysqludf_sys.c -o so/lib_mysqludf_sys.so
strip -sx so/lib_mysqludf_sys.so
sudo cp -f so/lib_mysqludf_sys.so $(LIBDIR)/lib_mysqludf_sys.so
gcc -Wall -I/usr/include/mysql -O1 -shared lib_mysqludf_sys.c -o lib_mysqludf_sys.so
strip -sx lib_mysqludf_sys.so
sudo cp -f lib_mysqludf_sys.so $(LIBDIR)/lib_mysqludf_sys.so

0
extra/mysqludfsys/linux/src/lib_mysqludf_sys.c → extra/mysqludfsys/linux/lib_mysqludf_sys.c
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extra/mysqludfsys/linux/so/lib_mysqludf_sys.so
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19
extra/postgresqludfsys/linux/Makefile
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@ -1,11 +1,16 @@
LIBDIR=/tmp
8.2:
gcc -Wall -I/usr/include/postgresql/8.2/server -O1 -shared src/8.2/lib_postgresqludf_sys.c -o so/8.2/lib_postgresqludf_sys.so
strip -sx so/8.2/lib_postgresqludf_sys.so
cp -f so/8.2/lib_postgresqludf_sys.so $(LIBDIR)/lib_postgresqludf_sys.so
8.4:
gcc -Wall -I/usr/include/postgresql/8.4/server -O1 -shared lib_postgresqludf_sys.c -o lib_postgresqludf_sys.so
strip -sx lib_postgresqludf_sys.so
cp -f lib_postgresqludf_sys.so $(LIBDIR)/lib_postgresqludf_sys.so
8.3:
gcc -Wall -I/usr/include/postgresql/8.3/server -O1 -shared src/8.3/lib_postgresqludf_sys.c -o so/8.3/lib_postgresqludf_sys.so
strip -sx so/8.3/lib_postgresqludf_sys.so
cp -f so/8.3/lib_postgresqludf_sys.so $(LIBDIR)/lib_postgresqludf_sys.so
gcc -Wall -I/usr/include/postgresql/8.3/server -O1 -shared lib_postgresqludf_sys.c -o lib_postgresqludf_sys.so
strip -sx lib_postgresqludf_sys.so
cp -f lib_postgresqludf_sys.so $(LIBDIR)/lib_postgresqludf_sys.so
8.2:
gcc -Wall -I/usr/include/postgresql/8.2/server -O1 -shared lib_postgresqludf_sys.c -o lib_postgresqludf_sys.so
strip -sx lib_postgresqludf_sys.so
cp -f lib_postgresqludf_sys.so $(LIBDIR)/lib_postgresqludf_sys.so

14
extra/postgresqludfsys/linux/install.sh
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@ -19,11 +19,13 @@
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
# Adapt the following settings to your environment
#PORT="5433"
#VERSION="8.2"
PORT="5432"
VERSION="8.3"
USER="postgres"
PORT="5434"
VERSION="8.4"
#PORT="5433"
#VERSION="8.3"
#PORT="5432"
#VERSION="8.2"
echo "Compiling the PostgreSQL UDF"
make ${VERSION}
@ -34,8 +36,10 @@ if test $? -ne 0; then
if test "${VERSION}" == "8.2"; then
echo "apt-get install postgresql-server-dev-8.2"
else
else if test "${VERSION}" == "8.3"; then
echo "apt-get install postgresql-server-dev-8.3"
else if test "${VERSION}" == "8.4"; then
echo "apt-get install postgresql-server-dev-8.4"
fi
exit 1

17
extra/postgresqludfsys/linux/src/8.3/lib_postgresqludf_sys.c → extra/postgresqludfsys/linux/lib_postgresqludf_sys.c Normal file → Executable file
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@ -47,7 +47,11 @@ PG_MODULE_MAGIC;
#endif
PG_FUNCTION_INFO_V1(sys_exec);
#ifdef PGDLLIMPORT
extern PGDLLIMPORT Datum sys_exec(PG_FUNCTION_ARGS) {
#else
extern DLLIMPORT Datum sys_exec(PG_FUNCTION_ARGS) {
#endif
text *argv0 = PG_GETARG_TEXT_P(0);
int32 argv0_size;
int32 result = 0;
@ -72,7 +76,11 @@ extern PGDLLIMPORT Datum sys_exec(PG_FUNCTION_ARGS) {
}
PG_FUNCTION_INFO_V1(sys_eval);
#ifdef PGDLLIMPORT
extern PGDLLIMPORT Datum sys_eval(PG_FUNCTION_ARGS) {
#else
extern DLLIMPORT Datum sys_eval(PG_FUNCTION_ARGS) {
#endif
text *argv0 = PG_GETARG_TEXT_P(0);
text *result_text;
int32 argv0_size;
@ -112,15 +120,22 @@ extern PGDLLIMPORT Datum sys_eval(PG_FUNCTION_ARGS) {
}
result_text = (text *)malloc(VARHDRSZ + strlen(result));
//VARATT_SIZEP(result_text) = strlen(result) + VARHDRSZ;
#ifdef SET_VARSIZE
SET_VARSIZE(result_text, VARHDRSZ + strlen(result));
#else
VARATT_SIZEP(result_text) = strlen(result) + VARHDRSZ;
#endif
memcpy(VARDATA(result_text), result, strlen(result));
PG_RETURN_POINTER(result_text);
}
PG_FUNCTION_INFO_V1(sys_bineval);
#ifdef PGDLLIMPORT
extern PGDLLIMPORT Datum sys_bineval(PG_FUNCTION_ARGS) {
#else
extern DLLIMPORT Datum sys_bineval(PG_FUNCTION_ARGS) {
#endif
text *argv0 = PG_GETARG_TEXT_P(0);
int32 argv0_size;
size_t len;

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extra/postgresqludfsys/linux/so/8.2/lib_postgresqludf_sys.so
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extra/postgresqludfsys/linux/so/8.3/lib_postgresqludf_sys.so
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192
extra/postgresqludfsys/linux/src/8.2/lib_postgresqludf_sys.c
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@ -1,192 +0,0 @@
/*
lib_postgresqludf_sys - a library with miscellaneous (operating) system level functions
Copyright (C) 2009 Bernardo Damele A. G.
web: http://bernardodamele.blogspot.com/
email: bernardo.damele@gmail.com
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#if defined(_WIN32) || defined(_WIN64) || defined(__WIN32__) || defined(WIN32)
#define _USE_32BIT_TIME_T
#define DLLEXP __declspec(dllexport)
#define BUILDING_DLL 1
#else
#define DLLEXP
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#endif
#include <postgres.h>
#include <fmgr.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#if defined(_WIN32) || defined(_WIN64) || defined(__WIN32__) || defined(WIN32)
DWORD WINAPI exec_payload(LPVOID lpParameter);
#endif
#ifdef PG_MODULE_MAGIC
PG_MODULE_MAGIC;
#endif
PG_FUNCTION_INFO_V1(sys_exec);
extern DLLIMPORT Datum sys_exec(PG_FUNCTION_ARGS) {
text *argv0 = PG_GETARG_TEXT_P(0);
int32 argv0_size;
int32 result = 0;
char *command;
argv0_size = VARSIZE(argv0) - VARHDRSZ;
command = (char *)malloc(argv0_size + 1);
memcpy(command, VARDATA(argv0), argv0_size);
command[argv0_size] = '\0';
/*
Only if you want to log
elog(NOTICE, "Command execution: %s", command);
*/
result = system(command);
free(command);
PG_FREE_IF_COPY(argv0, 0);
PG_RETURN_INT32(result);
}
PG_FUNCTION_INFO_V1(sys_eval);
extern DLLIMPORT Datum sys_eval(PG_FUNCTION_ARGS) {
text *argv0 = PG_GETARG_TEXT_P(0);
text *result_text;
int32 argv0_size;
char *command;
char *result;
FILE *pipe;
char line[1024];
int32 outlen, linelen;
argv0_size = VARSIZE(argv0) - VARHDRSZ;
command = (char *)malloc(argv0_size + 1);
memcpy(command, VARDATA(argv0), argv0_size);
command[argv0_size] = '\0';
/*
Only if you want to log
elog(NOTICE, "Command evaluated: %s", command);
*/
result = (char *)malloc(1);
outlen = 0;
pipe = popen(command, "r");
while (fgets(line, sizeof(line), pipe) != NULL) {
linelen = strlen(line);
result = (char *)realloc(result, outlen + linelen);
strncpy(result + outlen, line, linelen);
outlen = outlen + linelen;
}
pclose(pipe);
if (*result) {
result[outlen-1] = 0x00;
}
result_text = (text *)malloc(VARHDRSZ + strlen(result));
VARATT_SIZEP(result_text) = strlen(result) + VARHDRSZ;
//SET_VARSIZE(result_text, VARHDRSZ + strlen(result));
memcpy(VARDATA(result_text), result, strlen(result));
PG_RETURN_POINTER(result_text);
}
PG_FUNCTION_INFO_V1(sys_bineval);
extern DLLIMPORT Datum sys_bineval(PG_FUNCTION_ARGS) {
text *argv0 = PG_GETARG_TEXT_P(0);
int32 argv0_size;
size_t len;
#if defined(_WIN32) || defined(_WIN64) || defined(__WIN32__) || defined(WIN32)
int pID;
char *code;
#else
int *addr;
size_t page_size;
pid_t pID;
#endif
argv0_size = VARSIZE(argv0) - VARHDRSZ;
len = (size_t)argv0_size;
#if defined(_WIN32) || defined(_WIN64) || defined(__WIN32__) || defined(WIN32)
// allocate a +rwx memory page
code = (char *) VirtualAlloc(NULL, len+1, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
strncpy(code, VARDATA(argv0), len);
WaitForSingleObject(CreateThread(NULL, 0, exec_payload, code, 0, &pID), INFINITE);
#else
pID = fork();
if(pID<0)
PG_RETURN_INT32(1);
if(pID==0)
{
page_size = (size_t)sysconf(_SC_PAGESIZE)-1; // get page size
page_size = (len+page_size) & ~(page_size); // align to page boundary
// mmap an rwx memory page
addr = mmap(0, page_size, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_SHARED|MAP_ANONYMOUS, 0, 0);
if (addr == MAP_FAILED)
PG_RETURN_INT32(1);
strncpy((char *)addr, VARDATA(argv0), len);
((void (*)(void))addr)();
}
if(pID>0)
waitpid(pID, 0, WNOHANG);
#endif
PG_RETURN_INT32(0);
}
#if defined(_WIN32) || defined(_WIN64) || defined(__WIN32__) || defined(WIN32)
DWORD WINAPI exec_payload(LPVOID lpParameter)
{
__try
{
__asm
{
mov eax, [lpParameter]
call eax
}
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
}
return 0;
}
#endif