| |
| /* |
| * Name: getNonKeyAttribute |
| * Input: FILE ptr |
| * Output: character string handle |
| * Return: GET_NON_KEY_ATTRIBUTE_SUCCESS, or |
| * GET_NON_KEY_ATTRIBUTE_ALLOCATION_FAILURE, |
| * GET_NON_KEY_ATTRIBUTE_GET_STRING_FAILURE |
| * Description: Reads a non-key attribute from the current position of the |
| * file pointer. A non-key attribute is defined to be a |
| * white-space delimited string. The read will not cross an |
| * end-of-line indicated by a new line '\n' or carriage return |
| * '\r'. The primary reason for the routine is to copy over the |
| * results from getString() out of the static buffer to new |
| * memory allocated for the attribute. |
| * Calls: errorMessage() |
| * getString() |
| * System: malloc() |
| * strcpy() |
| * strlen() |
| * Author: M.L.Rivas |
| * |
| * Revision History: |
| * |
| * Date Name Revision |
| * ------- --------------- ------------------------------ |
| * 24May99 Matthew Rivas Created |
| * |
| * Copyright 1999, Atlantic Aerospace Electronics Corp. |
| */ |
| |
| #include <assert.h> /* for assert() */ |
| #include <stdlib.h> /* for malloc() and NULL definitions */ |
| #include <stdio.h> /* for FILE definition */ |
| #include <string.h> /* for strcpy() and strlen() definitions */ |
| #include "dataManagement.h" /* for primitive type definitions */ |
| #include "dataObject.h" /* for MAX_SIZE_OF_NON_KEY_ATTRIBUTE */ |
| #include "errorMessage.h" /* for errorMessage() definition */ |
| #include "getNonKeyAttribute.h" /* for getNonKeyAttribute() return codes */ |
| |
| /* |
| * Function prototype |
| */ |
| extern Char *getString( FILE *file ); |
| |
| Int getNonKeyAttribute( FILE *file, /* input stream to get string from */ |
| Char **value ) /* handle to unallocated string */ |
| { /* begin getNonKeyAttribute() */ |
| Char *temp; /* value returned from getString() */ |
| Int returnCode; /* return code for this routine */ |
| |
| static Char name[] = "getNonKeyAttribute"; |
| |
| assert( file ); |
| assert( value ); |
| |
| /* |
| * Read string using special utility getString(). Check for error during |
| * read. If no error, allocate memory and copy over contents of value |
| * returned. |
| */ |
| temp = getString( file ); |
| if ( temp == NULL ) { |
| errorMessage( name, PREPEND ); |
| *value = NULL; |
| returnCode = GET_NON_KEY_ATTRIBUTE_EOI; |
| } /* end of if *value == NULL */ |
| else { |
| assert( strlen( temp ) < MAX_SIZE_OF_NON_KEY_ATTRIBUTE ); |
| |
| *value = malloc( strlen( temp ) + 1 ); /* allocate memory */ |
| if ( *value == NULL ) { /* check for error */ |
| errorMessage( "allocation failure", REPLACE ); |
| errorMessage( name, PREPEND ); |
| returnCode = GET_NON_KEY_ATTRIBUTE_ALLOCATION_FAILURE; |
| } /* end of value == NULL */ |
| else { /* copy over string */ |
| strcpy( *value, temp ); |
| returnCode = GET_NON_KEY_ATTRIBUTE_SUCCESS; |
| } /* end of else - value != NULL */ |
| } /* end of if temp != NULL */ |
| |
| return ( returnCode ); |
| } /* end of getNonKeyAttribute() */ |
