1 /*
2 * Misc routines that are used by tcpd and by tcpdchk.
3 *
4 * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
| 1 /*
2 * Misc routines that are used by tcpd and by tcpdchk.
3 *
4 * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
|
| 5 *
6 * $FreeBSD: head/contrib/tcp_wrappers/misc.c 56977 2000-02-03 10:27:03Z shin $
|
5 */
6
7#ifndef lint
8static char sccsic[] = "@(#) misc.c 1.2 96/02/11 17:01:29";
9#endif
10
11#include <sys/types.h>
12#include <sys/param.h>
13#include <netinet/in.h>
14#include <arpa/inet.h>
15#include <stdio.h>
16#include <string.h>
17
18#include "tcpd.h"
19
20extern char *fgets();
21
22#ifndef INADDR_NONE
23#define INADDR_NONE (-1) /* XXX should be 0xffffffff */
24#endif
25
26/* xgets - fgets() with backslash-newline stripping */
27
28char *xgets(ptr, len, fp)
29char *ptr;
30int len;
31FILE *fp;
32{
33 int got;
34 char *start = ptr;
35
36 while (fgets(ptr, len, fp)) {
37 got = strlen(ptr);
38 if (got >= 1 && ptr[got - 1] == '\n') {
39 tcpd_context.line++;
40 if (got >= 2 && ptr[got - 2] == '\\') {
41 got -= 2;
42 } else {
43 return (start);
44 }
45 }
46 ptr += got;
47 len -= got;
48 ptr[0] = 0;
49 }
50 return (ptr > start ? start : 0);
51}
52
53/* split_at - break string at delimiter or return NULL */
54
55char *split_at(string, delimiter)
56char *string;
57int delimiter;
58{
59 char *cp;
60
| 7 */
8
9#ifndef lint
10static char sccsic[] = "@(#) misc.c 1.2 96/02/11 17:01:29";
11#endif
12
13#include <sys/types.h>
14#include <sys/param.h>
15#include <netinet/in.h>
16#include <arpa/inet.h>
17#include <stdio.h>
18#include <string.h>
19
20#include "tcpd.h"
21
22extern char *fgets();
23
24#ifndef INADDR_NONE
25#define INADDR_NONE (-1) /* XXX should be 0xffffffff */
26#endif
27
28/* xgets - fgets() with backslash-newline stripping */
29
30char *xgets(ptr, len, fp)
31char *ptr;
32int len;
33FILE *fp;
34{
35 int got;
36 char *start = ptr;
37
38 while (fgets(ptr, len, fp)) {
39 got = strlen(ptr);
40 if (got >= 1 && ptr[got - 1] == '\n') {
41 tcpd_context.line++;
42 if (got >= 2 && ptr[got - 2] == '\\') {
43 got -= 2;
44 } else {
45 return (start);
46 }
47 }
48 ptr += got;
49 len -= got;
50 ptr[0] = 0;
51 }
52 return (ptr > start ? start : 0);
53}
54
55/* split_at - break string at delimiter or return NULL */
56
57char *split_at(string, delimiter)
58char *string;
59int delimiter;
60{
61 char *cp;
62
|
| 63#ifdef INET6
64 int bracket = 0;
65
66 for (cp = string; cp && *cp; cp++) {
67 switch (*cp) {
68 case '[':
69 bracket++;
70 break;
71 case ']':
72 bracket--;
73 break;
74 default:
75 if (bracket == 0 && *cp == delimiter) {
76 *cp++ = 0;
77 return cp;
78 }
79 break;
80 }
81 }
82 return (NULL);
83#else
|
61 if ((cp = strchr(string, delimiter)) != 0)
62 *cp++ = 0;
63 return (cp);
| 84 if ((cp = strchr(string, delimiter)) != 0)
85 *cp++ = 0;
86 return (cp);
|
| 87#endif
|
64}
65
66/* dot_quad_addr - convert dotted quad to internal form */
67
68unsigned long dot_quad_addr(str)
69char *str;
70{
71 int in_run = 0;
72 int runs = 0;
73 char *cp = str;
74
75 /* Count the number of runs of non-dot characters. */
76
77 while (*cp) {
78 if (*cp == '.') {
79 in_run = 0;
80 } else if (in_run == 0) {
81 in_run = 1;
82 runs++;
83 }
84 cp++;
85 }
86 return (runs == 4 ? inet_addr(str) : INADDR_NONE);
87}
| 88}
89
90/* dot_quad_addr - convert dotted quad to internal form */
91
92unsigned long dot_quad_addr(str)
93char *str;
94{
95 int in_run = 0;
96 int runs = 0;
97 char *cp = str;
98
99 /* Count the number of runs of non-dot characters. */
100
101 while (*cp) {
102 if (*cp == '.') {
103 in_run = 0;
104 } else if (in_run == 0) {
105 in_run = 1;
106 runs++;
107 }
108 cp++;
109 }
110 return (runs == 4 ? inet_addr(str) : INADDR_NONE);
111}
|