123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282 |
- /*
- * CDE - Common Desktop Environment
- *
- * Copyright (c) 1993-2012, The Open Group. All rights reserved.
- *
- * These libraries and programs are free software; you can
- * redistribute them and/or modify them under the terms of the GNU
- * Lesser General Public License as published by the Free Software
- * Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- * These libraries and programs are distributed in the hope that
- * they 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 these libraries and programs; if not, write
- * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
- * Floor, Boston, MA 02110-1301 USA
- */
- /* $XConsortium: CanvasOs.c /main/5 1996/05/09 03:40:38 drk $ */
- /************************************<+>*************************************
- ****************************************************************************
- **
- ** File: UtilSDL.c
- **
- ** Project: Cde Help System
- **
- ** Description: Utility functions for parsing an SDL volume.
- **
- ** (c) Copyright 1987, 1988, 1989, 1990, 1991, 1992 Hewlett-Packard Company
- **
- ** (c) Copyright 1993, 1994 Hewlett-Packard Company
- ** (c) Copyright 1993, 1994 International Business Machines Corp.
- ** (c) Copyright 1993, 1994 Sun Microsystems, Inc.
- ** (c) Copyright 1993, 1994 Novell, Inc.
- **
- ****************************************************************************
- ************************************<+>*************************************/
- /*
- * system includes
- */
- #include <unistd.h>
- #include <fcntl.h>
- #include <stdlib.h>
- #include <stdio.h>
- #include <string.h>
- #include <sys/stat.h>
- /*
- * Canvas Engine includes
- */
- #include "CanvasP.h"
- /*
- * private includes
- */
- #include "bufioI.h"
- #include "CanvasOsI.h"
- #include "FormatUtilI.h"
- #ifdef NLS16
- #endif
- /******** Private Function Declarations ********/
- /******** End Private Function Declarations ********/
- /******************************************************************************
- *
- * Private defines.
- *
- *****************************************************************************/
- /******************************************************************************
- *
- * Private macros.
- *
- *****************************************************************************/
- /******************************************************************************
- *
- * Private data.
- *
- *****************************************************************************/
- /******************************************************************************
- *
- * Private Functions
- *
- *****************************************************************************/
- /******************************************************************************
- *
- * Semi Public Functions
- *
- *****************************************************************************/
- /*********************************************************************
- * Function: _DtCvRunInterp
- *
- * _DtCvRunInterp calls a script and maybe gets data.
- *
- *********************************************************************/
- int
- _DtCvRunInterp(
- int (*filter_exec)(),
- _DtCvPointer client_data,
- char *interp,
- char *data,
- char **ret_data)
- {
- int result;
- int myFd;
- FILE *myFile;
- int size;
- int writeBufSize = 0;
- char *writeBuf = NULL;
- char *ptr;
- char *fileName;
- char *newData;
- char readBuf[BUFSIZ];
- BufFilePtr myBufFile;
- /*
- * ask for permission to run the interperator command.
- */
- newData = data;
- if (filter_exec != NULL && (*filter_exec)(client_data,data,&newData) != 0)
- return -1;
- /*
- * open a temporary file to write the data to.
- */
- fileName = tempnam(NULL, NULL);
- if (fileName == NULL)
- {
- if (newData != data)
- free(newData);
- return -1;
- }
- /*
- * write the data to file.
- */
- result = -1;
- #if defined(__linux__)
- myFd = open(fileName, O_WRONLY | O_CREAT | O_TRUNC, S_IRWXU | S_IRWXG | S_IRWXO);
- #else
- myFd = open(fileName, O_WRONLY | O_CREAT | O_TRUNC);
- #endif
- if (myFd != -1)
- {
- /*
- * write the data to the file
- */
- result = write(myFd, newData, strlen(newData));
- if (result != -1)
- {
- /*
- * change the access permissions so the interpreter can read
- * the file.
- */
- result = fchmod(myFd, S_IRUSR | S_IRGRP | S_IROTH);
- }
- /*
- * close the file.
- */
- close(myFd);
- }
- if (newData != data)
- free(newData);
- if (result == -1)
- {
- unlink(fileName);
- free(fileName);
- return -1;
- }
- /*
- * create the system command string with its parameters
- */
- ptr = (char *) malloc(sizeof(interp) + strlen(fileName) + 1);
- if (!ptr)
- {
- unlink(fileName);
- free(fileName);
- return -1;
- }
- strcpy (ptr, interp);
- strcat (ptr, " ");
- strcat (ptr, fileName);
- myFile = popen(ptr, "r");
- /*
- * free the command
- */
- free (ptr);
- /*
- * check for problems
- */
- if (!myFile) /* couldn't create execString process */
- {
- unlink(fileName);
- free(fileName);
- return -1;
- }
- /*
- * create a file handler for the pipe.
- */
- myBufFile = _DtHelpCeCreatePipeBufFile(myFile);
- if (myBufFile == NULL)
- {
- (void) pclose(myFile); /* don't check for error, it was popen'd */
- unlink(fileName);
- free(fileName);
- return -1;
- }
- /*
- * read the file the pipe writes to until the pipe finishes.
- * Create a string from the results
- */
- do {
- readBuf[0] = '\0';
- ptr = readBuf;
- result = _DtHelpCeGetNxtBuf(myBufFile, readBuf, &ptr, BUFSIZ);
- if (result > 0)
- {
- size = strlen(readBuf);
- if (writeBuf == NULL)
- writeBuf = (char *) malloc (size + 1);
- else
- writeBuf = (char *) realloc (writeBuf, writeBufSize + size + 1);
- if (writeBuf != NULL)
- {
- writeBuf[writeBufSize] = '\0';
- strcat(writeBuf, readBuf);
- writeBufSize += size;
- }
- else
- result = -1;
- }
- } while (result != -1 && !feof(FileStream(myBufFile)));
- /*
- * close the pipe
- */
- _DtHelpCeBufFileClose (myBufFile, True);
- if (result == -1)
- {
- if (writeBuf != NULL)
- free(writeBuf);
-
- writeBuf = NULL;
- }
- else
- result = 0;
- /*
- * unlink the temporary file and free the memory.
- */
- unlink(fileName);
- free(fileName);
- /*
- * return the data
- */
- *ret_data = writeBuf;
- return result;
- } /* End _DtCvRunInterp */
|