BSD 4_3 development

[unix-history] / usr / contrib / mh / sbr / concat.c

/* concat.c - concatenate a bunch of strings in managed memory */

#include "../h/mh.h"
#include <stdio.h>
#include <varargs.h>


/* VARARGS */

char   *concat (va_alist)
va_dcl
{
   register char  *cp,
                  *dp,
                  *sp;
   register unsigned   len;
   register    va_list list;

   len = 1;
   va_start (list); 
   while (cp = va_arg (list, char *))
       len += strlen (cp);
   va_end (list);

   dp = sp = malloc (len);
   if (dp == NULL)
       adios (NULLCP, "unable to allocate string storage");

   va_start (list); 
   while (cp = va_arg (list, char *))
       sp = copy (cp, sp);
   va_end (list);

   return dp;
}