1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
|
#include "syshdrs.h"
#define _CRT_SECURE_NO_WARNINGS 1
#ifdef PRAGMA_HDRSTOP
# pragma hdrstop
#endif
#ifndef INADDR_ANY
# define INADDR_ANY ((unsigned long int) 0x00000000)
#endif
#ifndef INADDR_NONE
# define INADDR_NONE ((unsigned long int) 0xffffffff)
#endif
/* Linux libc 5.3.x has a bug that causes isalnum() to not work! */
#define ISALNUM(c) ( (((c) >= 'A') && ((c) <= 'Z')) || (((c) >= 'a') && ((c) <= 'z')) || (((c) >= '0') && ((c) <= '9')) )
#if (defined(WIN32) || defined(_WINDOWS)) && !defined(__CYGWIN__)
# pragma warning(disable : 4711) // warning: function 'ServiceNameToPortNumber' selected for automatic inline expansion
#endif
unsigned int
ServiceNameToPortNumber(const char *const s, const int proto)
{
char str[64];
char *cp;
#if defined(HAVE_GETSERVBYNAME_R) && (defined(AIX) || defined(TRU64UNIX) || defined(DIGITAL_UNIX))
struct servent *sp;
#elif defined(HAVE_GETSERVBYNAME_R) && (defined(LINUX) || defined(SOLARIS) || defined(IRIX) || defined(BSDOS))
struct servent se, *sp;
char spbuf[256];
#else
struct servent *sp;
#endif
strncpy(str, s, sizeof(str) - 1);
str[sizeof(str) - 1] = '\0';
cp = str;
if (isdigit((int) *cp)) {
while (isdigit((int) *cp))
cp++;
*cp = '\0';
return (atoi(str));
}
for (;; cp++) {
if ((*cp == '\0')
|| ((!ISALNUM(*cp)) && (*cp != '-') && (*cp != '_')))
break;
}
*cp = '\0';
sp = NULL;
#if defined(HAVE_GETSERVBYNAME_R) && (defined(SOLARIS) || defined(IRIX) || defined(BSDOS))
if ((sp == NULL) && ((proto == 0) || (proto == 't'))) {
memset(spbuf, 0, sizeof(spbuf));
sp = getservbyname_r(str, "tcp", &se, spbuf, sizeof(spbuf));
}
if ((sp == NULL) && ((proto == 0) || (proto == 'u'))) {
memset(spbuf, 0, sizeof(spbuf));
sp = getservbyname_r(str, "udp", &se, spbuf, sizeof(spbuf));
}
#elif defined(HAVE_GETSERVBYNAME_R) && defined(LINUX)
if ((sp == NULL) && ((proto == 0) || (proto == 't'))) {
memset(spbuf, 0, sizeof(spbuf));
if (getservbyname_r(str, "tcp", &se, spbuf, sizeof(spbuf), &sp) != 0)
sp = NULL;
}
if ((sp == NULL) && ((proto == 0) || (proto == 'u'))) {
memset(spbuf, 0, sizeof(spbuf));
if (getservbyname_r(str, "udp", &se, spbuf, sizeof(spbuf), &sp) != 0)
sp = NULL;
}
#elif defined(HAVE_GETSERVBYNAME_R) && defined(AIX)
{
struct servent_data sed;
if ((sp == NULL) && ((proto == 0) || (proto == 't'))) {
memset(&sed, 0, sizeof(sed));
if (getservbyname_r(str, "tcp", sp, &sed) != 0)
sp = NULL;
}
if ((sp == NULL) && ((proto == 0) || (proto == 'u'))) {
memset(&sed, 0, sizeof(sed));
if (getservbyname_r(str, "udp", sp, &sed) != 0)
sp = NULL;
}
}
#else
/* Note: getservbyname is already threadsafe on: HP-UX, Tru64 */
if ((sp == NULL) && ((proto == 0) || (proto == 't'))) {
sp = getservbyname(str, "tcp");
}
if ((sp == NULL) && ((proto == 0) || (proto == 'u'))) {
sp = getservbyname(str, "udp");
}
#endif
if (sp != NULL) {
return ((unsigned int) ntohs((unsigned short) sp->s_port));
}
return (0); /* error */
} /* ServiceNameToPortNumber */
int
ServicePortNumberToName(unsigned short port, char *const dst, const size_t dsize, const int proto)
{
#if defined(HAVE_GETSERVBYNAME_R) && (defined(AIX) || defined(TRU64UNIX) || defined(DIGITAL_UNIX))
struct servent *sp;
#elif defined(HAVE_GETSERVBYNAME_R) && (defined(LINUX) || defined(SOLARIS) || defined(IRIX) || defined(BSDOS))
struct servent se, *sp;
char spbuf[256];
#else
struct servent *sp;
#endif
sp = NULL;
#if defined(HAVE_GETSERVBYPORT_R) && (defined(SOLARIS) || defined(IRIX) || defined(BSDOS))
if ((sp == NULL) && ((proto == 0) || (proto == 't'))) {
memset(spbuf, 0, sizeof(spbuf));
sp = getservbyport_r((int) htons(port), "tcp", &se, spbuf, sizeof(spbuf));
}
if ((sp == NULL) && ((proto == 0) || (proto == 'u'))) {
memset(spbuf, 0, sizeof(spbuf));
sp = getservbyport_r((int) htons(port), "udp", &se, spbuf, sizeof(spbuf));
}
#elif defined(HAVE_GETSERVBYPORT_R) && defined(LINUX)
if ((sp == NULL) && ((proto == 0) || (proto == 't'))) {
memset(spbuf, 0, sizeof(spbuf));
if (getservbyport_r((int) htons(port), "tcp", &se, spbuf, sizeof(spbuf), &sp) != 0)
sp = NULL;
}
if ((sp == NULL) && ((proto == 0) || (proto == 'u'))) {
memset(spbuf, 0, sizeof(spbuf));
if (getservbyport_r((int) htons(port), "udp", &se, spbuf, sizeof(spbuf), &sp) != 0)
sp = NULL;
}
#elif defined(HAVE_GETSERVBYPORT_R) && defined(AIX)
{
struct servent_data sed;
if ((sp == NULL) && ((proto == 0) || (proto == 't'))) {
memset(&sed, 0, sizeof(sed));
if (getservbyport_r((int) htons(port), "tcp", sp, &sed) != 0)
sp = NULL;
}
if ((sp == NULL) && ((proto == 0) || (proto == 'u'))) {
memset(&sed, 0, sizeof(sed));
if (getservbyport_r((int) htons(port), "udp", sp, &sed) != 0)
sp = NULL;
}
}
#else
/* Note: getservbyport is already threadsafe on: HP-UX, Tru64 */
if ((sp == NULL) && ((proto == 0) || (proto == 't'))) {
sp = getservbyport((int) htons(port), "tcp");
}
if ((sp == NULL) && ((proto == 0) || (proto == 'u'))) {
sp = getservbyport((int) htons(port), "ucp");
}
#endif
if (sp != NULL) {
strncpy(dst, sp->s_name, dsize);
dst[dsize - 1] = '\0';
return (1);
}
#ifdef HAVE_SNPRINTF
snprintf(dst, dsize,
#else
sprintf(dst,
#endif
"%u", (unsigned int) port);
return (0); /* error */
} /* ServicePortNumberToName */
void
InetNtoA(char *dst, struct in_addr *ia, size_t siz)
{
#if defined(HAVE_INET_NTOP) && !defined(MACOSX)
/* Mostly to workaround bug in IRIX 6.5's inet_ntoa */
/* For OS X, don't use inet_ntop yet since it was just introduced
* for 10.2.
*/
memset(dst, 0, siz);
(void) inet_ntop(AF_INET, ia, dst, siz - 1);
#else
char *cp;
memset(dst, 0, siz);
cp = inet_ntoa(*ia);
if ((cp != (char *) 0) && (cp != (char *) -1) && (cp[0] != '\0')) {
(void) strncpy(dst, cp, siz - 1);
}
#endif
} /* InetNtoA */
int
AddrStrToAddr(const char * const s, struct sockaddr_in * const sa, const int defaultport)
{
char portstr[128];
unsigned int ipnum;
unsigned int port;
struct hostent *hp;
char *hostcp, *atsign, *colon, *cp, *p2;
memset(sa, 0, sizeof(struct sockaddr_in));
strncpy(portstr, s, sizeof(portstr));
portstr[sizeof(portstr) - 1] = '\0';
if ((colon = strchr(portstr, ':')) != NULL) {
/* Does it look like a URL? http://host ? */
if ((colon[1] == '/') && (colon[2] == '/')) {
*colon = '\0';
port = 0;
hostcp = colon + 3;
for (cp = hostcp; *cp != '\0'; cp++) {
if ((!ISALNUM(*cp)) && (*cp != '.')) {
/* http://host:port */
if ((*cp == ':') && (isdigit((int) cp[1]))) {
*cp++ = '\0';
p2 = cp;
while (isdigit((int) *cp))
cp++;
*cp = '\0';
port = atoi(p2);
}
*cp = '\0';
break;
}
}
if (port == 0)
port = ServiceNameToPortNumber(portstr, 0);
} else {
/* Look for host.name.domain:port */
*colon = '\0';
hostcp = portstr;
port = (unsigned int) atoi(colon + 1);
}
} else if ((atsign = strchr(portstr, '@')) != NULL) {
/* Look for port@host.name.domain */
*atsign = '\0';
hostcp = atsign + 1;
port = (unsigned int) atoi(portstr);
} else if (defaultport > 0) {
/* Have just host.name.domain, use that w/ default port. */
port = (unsigned int) defaultport;
hostcp = portstr;
} else {
/* If defaultport <= 0, they must supply a port number
* in the host/port string.
*/
errno = EADDRNOTAVAIL;
return (kAddrStrToAddrMiscErr);
}
sa->sin_port = htons((short) port);
ipnum = inet_addr(hostcp);
if (ipnum != INADDR_NONE) {
sa->sin_family = AF_INET;
sa->sin_addr.s_addr = ipnum;
} else {
#ifdef DNSSEC_LOCAL_VALIDATION
val_status_t val_status;
errno = 0;
hp = val_gethostbyname(NULL,hostcp,&val_status);
if ((hp != NULL) && (!val_istrusted(val_status)))
hp = NULL;
#else
errno = 0;
hp = gethostbyname(hostcp);
#endif
if (hp == NULL) {
if (errno == 0)
errno = ENOENT;
return (kAddrStrToAddrBadHost);
}
sa->sin_family = hp->h_addrtype;
memcpy(&sa->sin_addr.s_addr, hp->h_addr_list[0],
(size_t) hp->h_length);
}
return (0);
} /* AddrStrToAddr */
char *
AddrToAddrStr(char *const dst, size_t dsize, struct sockaddr_in * const saddrp, int dns, const char *fmt)
{
char addrName[128];
char *addrNamePtr;
struct hostent *hp;
char str[128];
char s_name[64];
char *dlim, *dp;
const char *cp;
if (dsize == 0)
return NULL;
memset(dst, 0, dsize);
addrNamePtr = NULL;
if (dns == 0) {
InetNtoA(addrName, &saddrp->sin_addr, sizeof(addrName));
addrNamePtr = addrName;
} else {
#ifdef DNSSEC_LOCAL_VALIDATION
val_status_t val_status;
hp = val_gethostbyaddr(NULL, (const char*)&saddrp->sin_addr, sizeof(struct in_addr), AF_INET, &val_status);
if ((hp != NULL) && (!val_istrusted(val_status)))
hp = NULL;
#else
hp = gethostbyaddr((gethost_addrptr_t) &saddrp->sin_addr, sizeof(struct in_addr), AF_INET);
#endif
if ((hp != NULL) && (hp->h_name != NULL) && (hp->h_name[0] != '\0')) {
addrNamePtr = hp->h_name;
} else {
InetNtoA(addrName, &saddrp->sin_addr, sizeof(addrName));
addrNamePtr = addrName;
}
}
if (fmt == NULL)
fmt = "%h:%p";
for (dp = dst, dlim = dp + dsize - 1; ; fmt++) {
if (*fmt == '\0') {
break; /* done */
} else if (*fmt == '%') {
fmt++;
if (*fmt == '%') {
if (dp < dlim)
*dp++ = '%';
} else if (*fmt == 'p') {
sprintf(str, "%u", (unsigned int) ntohs(saddrp->sin_port));
for (cp = str; *cp != '\0'; cp++)
if (dp < dlim)
*dp++ = *cp;
*dp = '\0';
} else if (*fmt == 'h') {
if (addrNamePtr != NULL) {
cp = addrNamePtr;
} else {
cp = "unknown";
}
for ( ; *cp != '\0'; cp++)
if (dp < dlim)
*dp++ = *cp;
*dp = '\0';
} else if (*fmt == 's') {
cp = s_name;
(void) ServicePortNumberToName(ntohs(saddrp->sin_port), s_name, sizeof(s_name), 0);
for ( ; *cp != '\0'; cp++)
if (dp < dlim)
*dp++ = *cp;
/* endservent(); */
*dp = '\0';
} else if ((*fmt == 't') || (*fmt == 'u')) {
cp = s_name;
(void) ServicePortNumberToName(ntohs(saddrp->sin_port), s_name, sizeof(s_name), (int) *fmt);
for ( ; *cp != '\0'; cp++)
if (dp < dlim)
*dp++ = *cp;
/* endservent(); */
*dp = '\0';
} else if (*fmt == '\0') {
break;
} else {
if (dp < dlim)
*dp++ = *fmt;
}
} else if (dp < dlim) {
*dp++ = *fmt;
}
}
*dp = '\0';
return (dst);
} /* AddrToAddrStr */
char *
AddrStrToIPStr(char *const dst, size_t dsize, const char *const src, const int defaultport)
{
int rc;
struct sockaddr_in sa;
if (dsize == 0)
return NULL;
memset(dst, 0, dsize);
rc = AddrStrToAddr(src, &sa, (defaultport <= 0) ? 21 : defaultport);
if (rc < 0)
return (NULL);
AddrToAddrStr(dst, dsize, &sa, 0, (defaultport <= 0) ? "%h" : "%h:%p");
return (dst);
} /* AddrStrToIPStr */
|
