96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
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/******************************************************************************
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*
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* GCI example .c file - mallocing space
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*
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* Module %M% Version %I% Date %H%
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*
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* (c) Copyright 1998 Ardent Software Inc. - All Rights Reserved
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* This is unpublished proprietary source code of Ardent Software Inc.
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* The copyright notice above does not evidence any actual or intended
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* publication of such source code.
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*
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*******************************************************************************
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*
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* Maintenence log - insert most recent change descriptions at top
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*
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* Date.... GTAR# WHO Description.........................................
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* 10/14/98 23801 SAP Change copyrights.
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* 05/23/90 6933 DTW move include stuff
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* 02/19/90 -- DTW New file
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*
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******************************************************************************/
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#include <gci.h>
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#define BUFSIZE 256
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char ray[BUFSIZE];
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/*
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* Concatenate two strings together as a third string.
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* malloc() the space for the third string.
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* As if that weren't enough, copy the second argument into
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* a buffer in reverse order.
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* arguments: str1 char* first string to concatenate
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* str2 char** second string to concatenate
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* (and reverse)
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* str3 char** resulting string from concatentation
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* return: integer length of new string
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* See the GCI manual for more information.
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*/
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int
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gci_c4(str1, str2, str3)
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char *str1;
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char **str2;
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char **str3;
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{
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int len = 0,
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rc = 0;
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char *ptr,
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*ptr3;
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/* malloc enough space for the concatenated string */
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rc = len = strlen(str1) + strlen(*str2);
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*str3 = malloc(len + 1);
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/*
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* set pointers to the string to be copied and the newly
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* malloc'd space
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*/
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ptr = str1;
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ptr3 = *str3;
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/* copy string 1 into the malloc'd space pointed at by string 3 */
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while (*ptr != 0)
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*ptr3++ = *ptr++;
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/* copy string 2 into the malloc'd space pointed at by string 3 */
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ptr = *str2;
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while (*ptr != 0)
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*ptr3++ = *ptr++;
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/* add a null terminator */
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*ptr3++ = 0;
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/*
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* reverse string 2
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*/
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/* initialize pointers */
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len = strlen(*str2);
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ptr3 = *str2;
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ptr = &ray[0];
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/* null terminator for backwards string */
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ray[len] = 0;
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/* the first shall be last and the last shall be first */
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len--;
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while (len >= 0) {
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*ptr++ = *(ptr3 + len);
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len--;
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}
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*str2 = ray;
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return(rc);
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}
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