bin/ps/fmt.c

   1 /*      $NetBSD: fmt.c,v 1.21 2007/12/12 22:55:43 lukem Exp $   */
   2
   3 #include <sys/cdefs.h>
   4 __RCSID("$NetBSD: fmt.c,v 1.21 2007/12/12 22:55:43 lukem Exp $");
   5
   6 #include <kvm.h>
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <string.h>
  10 #include <unistd.h>
  11 #include <vis.h>
  12 #include <sys/time.h>
  13 #include <sys/resource.h>
  14 #include "ps.h"
  15
  16 void
  17 fmt_puts(char *s, int *leftp)
  18 {
  19         static char *v = 0;
  20         static int maxlen = 0;
  21         char *nv;
  22         int len, nlen;
  23
  24         if (*leftp == 0)
  25                 return;
  26         len = strlen(s) * 4 + 1;
  27         if (len > maxlen) {
  28                 if (maxlen == 0)
  29                         nlen = getpagesize();
  30                 else
  31                         nlen = maxlen;
  32                 while (len > nlen)
  33                         nlen *= 2;
  34                 nv = realloc(v, nlen);
  35                 if (nv == 0)
  36                         return;
  37                 v = nv;
  38                 maxlen = nlen;
  39         }
  40         len = strvis(v, s, VIS_TAB | VIS_NL | VIS_CSTYLE);
  41         if (*leftp != -1) {
  42                 if (len > *leftp) {
  43                         v[*leftp] = '\0';
  44                         *leftp = 0;
  45                 } else
  46                         *leftp -= len;
  47         }
  48         (void)printf("%s", v);
  49 }
  50
  51 void
  52 fmt_putc(int c, int *leftp)
  53 {
  54
  55         if (*leftp == 0)
  56                 return;
  57         if (*leftp != -1)
  58                 *leftp -= 1;
  59         putchar(c);
  60 }