rle_addhist.c File Reference

#include "rle.h"
#include <stdio.h>
#include <time.h>

Include dependency graph for rle_addhist.c:

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Functions
void	rle_addhist (argv, rle_hdr *in_hdr, rle_hdr *out_hdr)

Function Documentation

void rle_addhist	(	argv	,
		rle_hdr *	in_hdr,
		rle_hdr*	out_hdr
	)

Definition at line 54 of file rle_addhist.c.

{
    register int    length,i;
    time_t  temp;
    /* padding must give number of characters in histoire   */
    /*     plus one for "="                 */
    static CONST_DECL char  *histoire="HISTORY",
                *padding="\t";
    char    *timedate,*old= NULL;
    static char *newc;

    if(getenv("NO_ADD_RLE_HISTORY"))return;

    length=0;
    for(i=0;argv[i];i++)
        length+= strlen(argv[i]) +1;                    /* length of each arg plus space. */

    (void)time (&temp);
    timedate=ctime(&temp);
    length+= strlen(timedate);                      /* length of date and time in ASCII. */

    length+= strlen(padding) + 3 + strlen(histoire) + 1;            /* length of padding, "on "  and length of history name plus "="*/
    if(in_hdr)                              /* if we are interested in the old comments... */
        old=rle_getcom(histoire,in_hdr);                /* get old comment. */

    if((old) && (*old)) length+= strlen(old);               /* add length if there. */

    length++;                               /*Cater for the null. */

    if((newc=(char *)malloc((unsigned int) length)) == NULL)return;

    (void)strcpy(newc,histoire);(void)strcat(newc,"=");
    if((old) && (*old)) (void)strcat(newc,old); /* add old string if there. */
    for(i=0;argv[i];i++)
    {
        (void)strcat(newc,argv[i]);(void)strcat(newc," ");
    }
    (void)strcat(newc,"on ");(void)strcat(newc,timedate);           /* \n supplied by time. */
    (void)strcat(newc,padding);                         /* to line up multiple histories.*/

    (void)rle_putcom(newc,out_hdr);

}