1 /* $OpenBSD: fmt.c,v 1.7 2004/01/08 18:18:35 millert Exp $ */
2
3 /*-
4 * Copyright (c) 1990, 1993, 1994
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/param.h>
33 #include <sys/user.h>
34 #include <sys/time.h>
35 #include <sys/resource.h>
36 #include <sys/proc.h>
37 #include <sys/stat.h>
38 #include <sys/ioctl.h>
39 #include <sys/sysctl.h>
40 #include <sys/types.h>
41 #include <stdio.h>
42 #include <stdlib.h>
43 #include <string.h>
44 #include <unistd.h>
45 #include <vis.h>
46 #include "ps.h"
47 #include "extern.h"
48
49 void
fmt_puts(const char * s,int * leftp)50 fmt_puts(const char *s, int *leftp)
51 {
52 static char *v = NULL, *nv;
53 static int maxlen = 0;
54 int len;
55
56 if (*leftp == 0)
57 return;
58 len = strlen(s) * 4 + 1;
59 if (len > maxlen) {
60 int newmaxlen = maxlen;
61
62 if (newmaxlen == 0)
63 newmaxlen = getpagesize();
64 while (len > newmaxlen)
65 newmaxlen *= 2;
66 nv = realloc(v, newmaxlen);
67 if (nv == 0) {
68 free(v);
69 v = NULL;
70 maxlen = 0;
71 return;
72 }
73 maxlen = newmaxlen;
74 v = nv;
75 }
76 strvis(v, s, VIS_TAB | VIS_NL | VIS_CSTYLE);
77 if (*leftp != -1) {
78 len = strlen(v);
79 if (len > *leftp) {
80 v[*leftp] = '\0';
81 *leftp = 0;
82 } else
83 *leftp -= len;
84 }
85 printf("%s", v);
86 }
87
88 void
fmt_putc(int c,int * leftp)89 fmt_putc(int c, int *leftp)
90 {
91
92 if (*leftp == 0)
93 return;
94 if (*leftp != -1)
95 *leftp -= 1;
96 putchar(c);
97 }
98