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/*
inifile.cc
INI file reader
Modification history:
21-Jan-2004 P.C. Moved across from the original EMC source tree.
*/
#ifdef __cplusplus
extern "C" {
#endif
#include <stdio.h> /* FILE *, fopen(), fclose(), NULL */
#include <string.h> /* strstr() */
#include <ctype.h> /* isspace() */
#include <stdlib.h> /* exit() */
#include <stdarg.h> /* va_list */
#ifdef __cplusplus
}
#endif
#include "inifile.h"
#include "rcs_print.hh"
/********************************************************************
*
* Description: Constructor.
*
* Return Value: None.
*
* Side Effects: File descriptor is set to NULL, so open("file.name")
* must be used before any search.
*
* Called By:
*
********************************************************************/
INIFILE::INIFILE()
{
fp = NULL;
}
/********************************************************************
*
* Description: Constructor with a file name.
*
* Return Value: None
*
* Side Effects:
*
* Called By:
*
********************************************************************/
INIFILE::INIFILE(const char *path)
{
if (NULL == (fp = fopen(path, "r"))) {
fprintf(stderr, "can't open %s\n", path);
}
}
/********************************************************************
*
* Description: Destructor
*
* Return Value: None
*
* Side Effects: Releases the file descriptor and any memory allocated.
*
* Called By:
*
********************************************************************/
INIFILE::~INIFILE()
{
if (NULL != fp) {
fclose(fp);
}
}
/********************************************************************
*
* Description: Opens the file for reading.
*
* Return Value: 0 on success
* -1 on failure - Either file not found, or a permissions err.
*
* Side Effects: If a file was already open, the handle is lost.
* FIX ME - Check and free any FD first ?
*
* Called By:
*
********************************************************************/
const int INIFILE::open(const char *path)
{
if (NULL == (fp = fopen(path, "r"))) {
return -1;
}
return 0;
}
/********************************************************************
*
* Description: Closes the file descriptor..
*
* Return Value: 0 on success
* -1 if an error occurred.
*
* Side Effects:
*
* Called By:
*
********************************************************************/
const int INIFILE::close()
{
int retval = 0;
if (fp != NULL) {
retval = fclose(fp);
fp = NULL;
}
return retval;
}
/********************************************************************
*
* Description: Finds the tag in section.
*
* Return Value: First item after an '=' as a string.
* NULL if not found.
*
* Side Effects:
*
* Called By:
*
********************************************************************/
const char *INIFILE::find(const char *tag, const char *section)
{
return iniFind(fp, tag, section);
}
/********************************************************************
*
* Description: section(const char *section, INIFILE_ENTRY array[], int max)
* given 'section' and array of strings, fills strings
* with what was found in the section, one line per string.
* Comments and blank lines are omitted. 'array' is assumed
* to be allocated, of 'max' entries of size INIFILE_MAX_LINELEN.
*
* Return Value: Returns number of entries found
* 0 if section is there but no entries in it, or
* -1 if section is not found.
*
* Side Effects:
*
* Called By:
*
********************************************************************/
int INIFILE::section(const char *section, INIFILE_ENTRY array[], int max)
{
return iniSection(fp, section, array, max);
}
/********************************************************************
*
* Description: valid()
* Reports if the file descriptor used in the constructor
* is valid.
*
* Return Value: 1 if the fd is valid and file open.
* 0 if not valid.
*
* Side Effects:
*
* Called By:
*
********************************************************************/
const int INIFILE::valid()
{
if (NULL == fp) {
return 0;
}
return 1;
}
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