File: util.c

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/*
 * Utility functions for memory management.  Very primitive.
 * ema@csn.es
 */

static char *pos;
static int maxsize;

#define NULL (void *)0

void memgets_init(memarea, size)
 char *memarea;
 int size;
{
    pos = memarea;
    maxsize = size;
}



char *memgets(output, maxitems)
 char *output;
 int maxitems;
{
    char *retval = output;
    while (maxitems-- &&  maxsize-- >=0 && (*output++=*pos++) != '\n' )
      ;
    *output = '\0';
    if (maxsize >= 0) 
        return retval;
    else
        return NULL;
}