1/*-
2 * Copyright (c) 1992, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#if 0
35#ifndef lint
36static char sccsid[] = "@(#)fmt.c 8.4 (Berkeley) 4/15/94";
37#endif
38#endif
| 1/*-
2 * Copyright (c) 1992, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#if 0
35#ifndef lint
36static char sccsid[] = "@(#)fmt.c 8.4 (Berkeley) 4/15/94";
37#endif
38#endif
|
| 39
|
39#include <sys/cdefs.h>
| 40#include <sys/cdefs.h>
|
40__FBSDID("$FreeBSD: head/bin/ps/fmt.c 99457 2002-07-05 15:58:27Z mike $");
| 41__FBSDID("$FreeBSD: head/bin/ps/fmt.c 110391 2003-02-05 13:18:17Z charnier $");
|
41
42#include <sys/types.h>
43#include <sys/time.h>
44#include <sys/resource.h>
45
46#include <err.h>
47#include <limits.h>
48#include <stdio.h>
49#include <stdint.h>
50#include <stdlib.h>
51#include <string.h>
52#include <unistd.h>
53#include <vis.h>
54
55#include "ps.h"
56
57static char *cmdpart(char *);
58static char *shquote(char **);
59
60static char *
61shquote(char **argv)
62{
63 long arg_max;
64 static size_t buf_size;
65 size_t len;
66 char **p, *dst, *src;
67 static char *buf = NULL;
68
69 if (buf == NULL) {
70 if ((arg_max = sysconf(_SC_ARG_MAX)) == -1)
71 errx(1, "sysconf _SC_ARG_MAX failed");
72 if (arg_max >= LONG_MAX / 4 || 4 * arg_max + 1 > SIZE_MAX)
73 errx(1, "sysconf _SC_ARG_MAX preposterously large");
74 buf_size = 4 * arg_max + 1;
75 if ((buf = malloc(buf_size)) == NULL)
76 errx(1, "malloc failed");
77 }
78
79 if (*argv == NULL) {
80 buf[0] = '\0';
81 return (buf);
82 }
83 dst = buf;
84 for (p = argv; (src = *p++) != NULL; ) {
85 if (*src == '\0')
86 continue;
87 len = (buf_size - 1 - (dst - buf)) / 4;
88 strvisx(dst, src, strlen(src) < len ? strlen(src) : len,
89 VIS_NL | VIS_CSTYLE);
90 while (*dst != '\0')
91 dst++;
92 if ((buf_size - 1 - (dst - buf)) / 4 > 0)
93 *dst++ = ' ';
94 }
95 /* Chop off trailing space */
96 if (dst != buf && dst[-1] == ' ')
97 dst--;
98 *dst = '\0';
99 return (buf);
100}
101
102static char *
103cmdpart(char *arg0)
104{
105 char *cp;
106
107 return ((cp = strrchr(arg0, '/')) != NULL ? cp + 1 : arg0);
108}
109
110const char *
111fmt_argv(char **argv, char *cmd, size_t maxlen)
112{
113 size_t len;
114 char *ap, *cp;
115
116 if (argv == NULL || argv[0] == NULL) {
117 if (cmd == NULL)
118 return ("");
119 ap = NULL;
120 len = maxlen + 3;
121 } else {
122 ap = shquote(argv);
123 len = strlen(ap) + maxlen + 4;
124 }
125 cp = malloc(len);
126 if (cp == NULL)
127 errx(1, "malloc failed");
128 if (ap == NULL)
129 sprintf(cp, " (%.*s)", (int)maxlen, cmd);
130 else if (strncmp(cmdpart(argv[0]), cmd, maxlen) != 0)
131 sprintf(cp, "%s (%.*s)", ap, (int)maxlen, cmd);
132 else
133 (void) strcpy(cp, ap);
134 return (cp);
135}
| 42
43#include <sys/types.h>
44#include <sys/time.h>
45#include <sys/resource.h>
46
47#include <err.h>
48#include <limits.h>
49#include <stdio.h>
50#include <stdint.h>
51#include <stdlib.h>
52#include <string.h>
53#include <unistd.h>
54#include <vis.h>
55
56#include "ps.h"
57
58static char *cmdpart(char *);
59static char *shquote(char **);
60
61static char *
62shquote(char **argv)
63{
64 long arg_max;
65 static size_t buf_size;
66 size_t len;
67 char **p, *dst, *src;
68 static char *buf = NULL;
69
70 if (buf == NULL) {
71 if ((arg_max = sysconf(_SC_ARG_MAX)) == -1)
72 errx(1, "sysconf _SC_ARG_MAX failed");
73 if (arg_max >= LONG_MAX / 4 || 4 * arg_max + 1 > SIZE_MAX)
74 errx(1, "sysconf _SC_ARG_MAX preposterously large");
75 buf_size = 4 * arg_max + 1;
76 if ((buf = malloc(buf_size)) == NULL)
77 errx(1, "malloc failed");
78 }
79
80 if (*argv == NULL) {
81 buf[0] = '\0';
82 return (buf);
83 }
84 dst = buf;
85 for (p = argv; (src = *p++) != NULL; ) {
86 if (*src == '\0')
87 continue;
88 len = (buf_size - 1 - (dst - buf)) / 4;
89 strvisx(dst, src, strlen(src) < len ? strlen(src) : len,
90 VIS_NL | VIS_CSTYLE);
91 while (*dst != '\0')
92 dst++;
93 if ((buf_size - 1 - (dst - buf)) / 4 > 0)
94 *dst++ = ' ';
95 }
96 /* Chop off trailing space */
97 if (dst != buf && dst[-1] == ' ')
98 dst--;
99 *dst = '\0';
100 return (buf);
101}
102
103static char *
104cmdpart(char *arg0)
105{
106 char *cp;
107
108 return ((cp = strrchr(arg0, '/')) != NULL ? cp + 1 : arg0);
109}
110
111const char *
112fmt_argv(char **argv, char *cmd, size_t maxlen)
113{
114 size_t len;
115 char *ap, *cp;
116
117 if (argv == NULL || argv[0] == NULL) {
118 if (cmd == NULL)
119 return ("");
120 ap = NULL;
121 len = maxlen + 3;
122 } else {
123 ap = shquote(argv);
124 len = strlen(ap) + maxlen + 4;
125 }
126 cp = malloc(len);
127 if (cp == NULL)
128 errx(1, "malloc failed");
129 if (ap == NULL)
130 sprintf(cp, " (%.*s)", (int)maxlen, cmd);
131 else if (strncmp(cmdpart(argv[0]), cmd, maxlen) != 0)
132 sprintf(cp, "%s (%.*s)", ap, (int)maxlen, cmd);
133 else
134 (void) strcpy(cp, ap);
135 return (cp);
136}
|