]>
Commit | Line | Data |
---|---|---|
ef416fc2 | 1 | /* |
bc44d920 | 2 | * "$Id: http-support.c 6649 2007-07-11 21:46:42Z mike $" |
ef416fc2 | 3 | * |
4 | * HTTP support routines for the Common UNIX Printing System (CUPS) scheduler. | |
5 | * | |
bc44d920 | 6 | * Copyright 2007 by Apple Inc. |
b86bc4cf | 7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
ef416fc2 | 8 | * |
9 | * These coded instructions, statements, and computer programs are the | |
bc44d920 | 10 | * property of Apple Inc. and are protected by Federal copyright |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * which should have been included with this file. If this file is | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 14 | * |
15 | * This file is subject to the Apple OS-Developed Software exception. | |
16 | * | |
17 | * Contents: | |
18 | * | |
19 | * httpAssembleURI() - Assemble a uniform resource identifier from its | |
20 | * components. | |
21 | * httpAssembleURIf() - Assemble a uniform resource identifier from its | |
22 | * components with a formatted resource. | |
23 | * httpDecode64() - Base64-decode a string. | |
24 | * httpDecode64_2() - Base64-decode a string. | |
25 | * httpEncode64() - Base64-encode a string. | |
26 | * httpEncode64_2() - Base64-encode a string. | |
27 | * httpGetDateString() - Get a formatted date/time string from a time value. | |
28 | * httpGetDateString2() - Get a formatted date/time string from a time value. | |
29 | * httpGetDateTime() - Get a time value from a formatted date/time string. | |
30 | * httpSeparate() - Separate a Universal Resource Identifier into its | |
31 | * components. | |
32 | * httpSeparate2() - Separate a Universal Resource Identifier into its | |
33 | * components. | |
34 | * httpSeparateURI() - Separate a Universal Resource Identifier into its | |
35 | * components. | |
36 | * httpStatus() - Return a short string describing a HTTP status code. | |
37 | * _cups_hstrerror() - hstrerror() emulation function for Solaris and | |
38 | * others... | |
839a51c8 | 39 | * _httpEncodeURI() - Percent-encode a HTTP request URI. |
ef416fc2 | 40 | * http_copy_decode() - Copy and decode a URI. |
41 | * http_copy_encode() - Copy and encode a URI. | |
42 | */ | |
43 | ||
44 | /* | |
45 | * Include necessary headers... | |
46 | */ | |
47 | ||
48 | #include "debug.h" | |
49 | #include "globals.h" | |
50 | #include <stdlib.h> | |
51 | ||
52 | ||
53 | /* | |
54 | * Local globals... | |
55 | */ | |
56 | ||
57 | static const char * const http_days[7] = | |
58 | { | |
0a682745 MS |
59 | "Sun", |
60 | "Mon", | |
ef416fc2 | 61 | "Tue", |
62 | "Wed", | |
63 | "Thu", | |
64 | "Fri", | |
65 | "Sat" | |
66 | }; | |
67 | static const char * const http_months[12] = | |
68 | { | |
69 | "Jan", | |
70 | "Feb", | |
71 | "Mar", | |
72 | "Apr", | |
73 | "May", | |
74 | "Jun", | |
75 | "Jul", | |
76 | "Aug", | |
77 | "Sep", | |
78 | "Oct", | |
79 | "Nov", | |
80 | "Dec" | |
81 | }; | |
82 | ||
83 | ||
84 | /* | |
85 | * Local functions... | |
86 | */ | |
87 | ||
88 | static const char *http_copy_decode(char *dst, const char *src, | |
a4d04587 | 89 | int dstsize, const char *term, |
90 | int decode); | |
ef416fc2 | 91 | static char *http_copy_encode(char *dst, const char *src, |
a4d04587 | 92 | char *dstend, const char *reserved, |
93 | const char *term, int encode); | |
ef416fc2 | 94 | |
95 | ||
96 | /* | |
97 | * 'httpAssembleURI()' - Assemble a uniform resource identifier from its | |
98 | * components. | |
99 | * | |
ecdc0628 | 100 | * This function escapes reserved characters in the URI depending on the |
101 | * value of the "encoding" argument. You should use this function in | |
102 | * place of traditional string functions whenever you need to create a | |
103 | * URI string. | |
ef416fc2 | 104 | * |
105 | * @since CUPS 1.2@ | |
106 | */ | |
107 | ||
108 | http_uri_status_t /* O - URI status */ | |
a4d04587 | 109 | httpAssembleURI( |
110 | http_uri_coding_t encoding, /* I - Encoding flags */ | |
111 | char *uri, /* I - URI buffer */ | |
112 | int urilen, /* I - Size of URI buffer */ | |
113 | const char *scheme, /* I - Scheme name */ | |
114 | const char *username, /* I - Username */ | |
115 | const char *host, /* I - Hostname or address */ | |
116 | int port, /* I - Port number */ | |
117 | const char *resource) /* I - Resource */ | |
ef416fc2 | 118 | { |
119 | char *ptr, /* Pointer into URI buffer */ | |
120 | *end; /* End of URI buffer */ | |
ef416fc2 | 121 | |
122 | ||
123 | /* | |
124 | * Range check input... | |
125 | */ | |
126 | ||
127 | if (!uri || urilen < 1 || !scheme || port < 0) | |
128 | { | |
129 | if (uri) | |
130 | *uri = '\0'; | |
131 | ||
132 | return (HTTP_URI_BAD_ARGUMENTS); | |
133 | } | |
134 | ||
135 | /* | |
136 | * Assemble the URI starting with the scheme... | |
137 | */ | |
138 | ||
139 | end = uri + urilen - 1; | |
a4d04587 | 140 | ptr = http_copy_encode(uri, scheme, end, NULL, NULL, 0); |
ef416fc2 | 141 | |
142 | if (!ptr) | |
143 | goto assemble_overflow; | |
144 | ||
f7deaa1a | 145 | if (!strcmp(scheme, "mailto")) |
ef416fc2 | 146 | { |
147 | /* | |
148 | * mailto: only has :, no //... | |
149 | */ | |
150 | ||
151 | if (ptr < end) | |
152 | *ptr++ = ':'; | |
153 | else | |
154 | goto assemble_overflow; | |
155 | } | |
156 | else | |
157 | { | |
158 | /* | |
159 | * Schemes other than mailto: all have //... | |
160 | */ | |
161 | ||
162 | if ((ptr + 2) < end) | |
163 | { | |
164 | *ptr++ = ':'; | |
165 | *ptr++ = '/'; | |
166 | *ptr++ = '/'; | |
167 | } | |
168 | else | |
169 | goto assemble_overflow; | |
170 | } | |
171 | ||
172 | /* | |
173 | * Next the username and hostname, if any... | |
174 | */ | |
175 | ||
176 | if (host) | |
177 | { | |
178 | if (username && *username) | |
179 | { | |
180 | /* | |
181 | * Add username@ first... | |
182 | */ | |
183 | ||
a4d04587 | 184 | ptr = http_copy_encode(ptr, username, end, "/?@", NULL, |
185 | encoding & HTTP_URI_CODING_USERNAME); | |
ef416fc2 | 186 | |
187 | if (!ptr) | |
188 | goto assemble_overflow; | |
189 | ||
190 | if (ptr < end) | |
191 | *ptr++ = '@'; | |
192 | else | |
193 | goto assemble_overflow; | |
194 | } | |
195 | ||
196 | /* | |
197 | * Then add the hostname. Since IPv6 is a particular pain to deal | |
c9fc04c6 | 198 | * with, we have several special cases to deal with. If we get |
ef416fc2 | 199 | * an IPv6 address with brackets around it, assume it is already in |
c9fc04c6 MS |
200 | * URI format. Since DNS-SD service names can sometimes look like |
201 | * raw IPv6 addresses, we specifically look for "._tcp" in the name, | |
202 | * too... | |
ef416fc2 | 203 | */ |
204 | ||
c9fc04c6 | 205 | if (host[0] != '[' && strchr(host, ':') && !strstr(host, "._tcp")) |
ef416fc2 | 206 | { |
207 | /* | |
c9fc04c6 | 208 | * We have a raw IPv6 address... |
ef416fc2 | 209 | */ |
210 | ||
211 | if (strchr(host, '%')) | |
212 | { | |
213 | /* | |
214 | * We have a link-local address, add "[v1." prefix... | |
215 | */ | |
216 | ||
217 | if ((ptr + 4) < end) | |
218 | { | |
219 | *ptr++ = '['; | |
220 | *ptr++ = 'v'; | |
221 | *ptr++ = '1'; | |
222 | *ptr++ = '.'; | |
223 | } | |
224 | else | |
225 | goto assemble_overflow; | |
226 | } | |
227 | else | |
228 | { | |
229 | /* | |
230 | * We have a normal address, add "[" prefix... | |
231 | */ | |
232 | ||
233 | if (ptr < end) | |
234 | *ptr++ = '['; | |
235 | else | |
236 | goto assemble_overflow; | |
237 | } | |
238 | ||
239 | /* | |
240 | * Copy the rest of the IPv6 address, and terminate with "]". | |
241 | */ | |
242 | ||
243 | while (ptr < end && *host) | |
244 | { | |
245 | if (*host == '%') | |
246 | { | |
247 | *ptr++ = '+'; /* Convert zone separator */ | |
248 | host ++; | |
249 | } | |
250 | else | |
251 | *ptr++ = *host++; | |
252 | } | |
253 | ||
254 | if (*host) | |
255 | goto assemble_overflow; | |
256 | ||
257 | if (ptr < end) | |
258 | *ptr++ = ']'; | |
259 | else | |
260 | goto assemble_overflow; | |
261 | } | |
262 | else | |
263 | { | |
264 | /* | |
265 | * Otherwise, just copy the host string... | |
266 | */ | |
267 | ||
c9fc04c6 | 268 | ptr = http_copy_encode(ptr, host, end, ":/?#[]@", NULL, |
a4d04587 | 269 | encoding & HTTP_URI_CODING_HOSTNAME); |
ef416fc2 | 270 | |
271 | if (!ptr) | |
272 | goto assemble_overflow; | |
273 | } | |
274 | ||
275 | /* | |
276 | * Finish things off with the port number... | |
277 | */ | |
278 | ||
279 | if (port > 0) | |
280 | { | |
281 | snprintf(ptr, end - ptr + 1, ":%d", port); | |
282 | ptr += strlen(ptr); | |
283 | ||
284 | if (ptr >= end) | |
285 | goto assemble_overflow; | |
286 | } | |
287 | } | |
288 | ||
289 | /* | |
290 | * Last but not least, add the resource string... | |
291 | */ | |
292 | ||
a4d04587 | 293 | if (resource) |
ef416fc2 | 294 | { |
fa73b229 | 295 | char *query; /* Pointer to query string */ |
296 | ||
297 | ||
fa73b229 | 298 | /* |
a4d04587 | 299 | * Copy the resource string up to the query string if present... |
fa73b229 | 300 | */ |
301 | ||
a4d04587 | 302 | query = strchr(resource, '?'); |
303 | ptr = http_copy_encode(ptr, resource, end, NULL, "?", | |
304 | encoding & HTTP_URI_CODING_RESOURCE); | |
ef416fc2 | 305 | if (!ptr) |
306 | goto assemble_overflow; | |
fa73b229 | 307 | |
308 | if (query) | |
309 | { | |
310 | /* | |
311 | * Copy query string without encoding... | |
312 | */ | |
313 | ||
a4d04587 | 314 | ptr = http_copy_encode(ptr, query, end, NULL, NULL, |
315 | encoding & HTTP_URI_CODING_QUERY); | |
316 | if (!ptr) | |
317 | goto assemble_overflow; | |
fa73b229 | 318 | } |
ef416fc2 | 319 | } |
320 | else if (ptr < end) | |
321 | *ptr++ = '/'; | |
322 | else | |
323 | goto assemble_overflow; | |
324 | ||
325 | /* | |
326 | * Nul-terminate the URI buffer and return with no errors... | |
327 | */ | |
328 | ||
329 | *ptr = '\0'; | |
330 | ||
331 | return (HTTP_URI_OK); | |
332 | ||
333 | /* | |
334 | * Clear the URI string and return an overflow error; I don't usually | |
335 | * like goto's, but in this case it makes sense... | |
336 | */ | |
337 | ||
338 | assemble_overflow: | |
339 | ||
340 | *uri = '\0'; | |
341 | return (HTTP_URI_OVERFLOW); | |
342 | } | |
343 | ||
344 | ||
a4d04587 | 345 | /* |
346 | * 'httpAssembleURIf()' - Assemble a uniform resource identifier from its | |
347 | * components with a formatted resource. | |
348 | * | |
349 | * This function creates a formatted version of the resource string | |
ecdc0628 | 350 | * argument "resourcef" and escapes reserved characters in the URI |
351 | * depending on the value of the "encoding" argument. You should use | |
352 | * this function in place of traditional string functions whenever | |
353 | * you need to create a URI string. | |
a4d04587 | 354 | * |
355 | * @since CUPS 1.2@ | |
356 | */ | |
357 | ||
358 | http_uri_status_t /* O - URI status */ | |
359 | httpAssembleURIf( | |
360 | http_uri_coding_t encoding, /* I - Encoding flags */ | |
361 | char *uri, /* I - URI buffer */ | |
362 | int urilen, /* I - Size of URI buffer */ | |
363 | const char *scheme, /* I - Scheme name */ | |
364 | const char *username, /* I - Username */ | |
365 | const char *host, /* I - Hostname or address */ | |
366 | int port, /* I - Port number */ | |
367 | const char *resourcef, /* I - Printf-style resource */ | |
368 | ...) /* I - Additional arguments as needed */ | |
369 | { | |
370 | va_list ap; /* Pointer to additional arguments */ | |
371 | char resource[1024]; /* Formatted resource string */ | |
372 | int bytes; /* Bytes in formatted string */ | |
373 | ||
374 | ||
375 | /* | |
376 | * Range check input... | |
377 | */ | |
378 | ||
379 | if (!uri || urilen < 1 || !scheme || port < 0 || !resourcef) | |
380 | { | |
381 | if (uri) | |
382 | *uri = '\0'; | |
383 | ||
384 | return (HTTP_URI_BAD_ARGUMENTS); | |
385 | } | |
386 | ||
387 | /* | |
388 | * Format the resource string and assemble the URI... | |
389 | */ | |
390 | ||
391 | va_start(ap, resourcef); | |
392 | bytes = vsnprintf(resource, sizeof(resource), resourcef, ap); | |
393 | va_end(ap); | |
394 | ||
395 | if (bytes >= sizeof(resource)) | |
396 | { | |
397 | *uri = '\0'; | |
398 | return (HTTP_URI_OVERFLOW); | |
399 | } | |
400 | else | |
401 | return (httpAssembleURI(encoding, uri, urilen, scheme, username, host, | |
402 | port, resource)); | |
403 | } | |
404 | ||
405 | ||
ef416fc2 | 406 | /* |
407 | * 'httpDecode64()' - Base64-decode a string. | |
ecdc0628 | 408 | * |
409 | * This function is deprecated. Use the httpDecode64_2() function instead | |
410 | * which provides buffer length arguments. | |
411 | * | |
412 | * @deprecated@ | |
ef416fc2 | 413 | */ |
414 | ||
415 | char * /* O - Decoded string */ | |
416 | httpDecode64(char *out, /* I - String to write to */ | |
417 | const char *in) /* I - String to read from */ | |
418 | { | |
419 | int outlen; /* Output buffer length */ | |
420 | ||
421 | ||
422 | /* | |
423 | * Use the old maximum buffer size for binary compatibility... | |
424 | */ | |
425 | ||
426 | outlen = 512; | |
427 | ||
428 | return (httpDecode64_2(out, &outlen, in)); | |
429 | } | |
430 | ||
431 | ||
432 | /* | |
433 | * 'httpDecode64_2()' - Base64-decode a string. | |
434 | * | |
435 | * @since CUPS 1.1.21@ | |
436 | */ | |
437 | ||
438 | char * /* O - Decoded string */ | |
439 | httpDecode64_2(char *out, /* I - String to write to */ | |
440 | int *outlen, /* IO - Size of output string */ | |
441 | const char *in) /* I - String to read from */ | |
442 | { | |
443 | int pos, /* Bit position */ | |
444 | base64; /* Value of this character */ | |
445 | char *outptr, /* Output pointer */ | |
446 | *outend; /* End of output buffer */ | |
447 | ||
448 | ||
449 | /* | |
450 | * Range check input... | |
451 | */ | |
452 | ||
fa73b229 | 453 | if (!out || !outlen || *outlen < 1 || !in) |
ef416fc2 | 454 | return (NULL); |
455 | ||
fa73b229 | 456 | if (!*in) |
457 | { | |
458 | *out = '\0'; | |
459 | *outlen = 0; | |
460 | ||
461 | return (out); | |
462 | } | |
463 | ||
ef416fc2 | 464 | /* |
465 | * Convert from base-64 to bytes... | |
466 | */ | |
467 | ||
468 | for (outptr = out, outend = out + *outlen - 1, pos = 0; *in != '\0'; in ++) | |
469 | { | |
470 | /* | |
471 | * Decode this character into a number from 0 to 63... | |
472 | */ | |
473 | ||
474 | if (*in >= 'A' && *in <= 'Z') | |
475 | base64 = *in - 'A'; | |
476 | else if (*in >= 'a' && *in <= 'z') | |
477 | base64 = *in - 'a' + 26; | |
478 | else if (*in >= '0' && *in <= '9') | |
479 | base64 = *in - '0' + 52; | |
480 | else if (*in == '+') | |
481 | base64 = 62; | |
482 | else if (*in == '/') | |
483 | base64 = 63; | |
484 | else if (*in == '=') | |
485 | break; | |
486 | else | |
487 | continue; | |
488 | ||
489 | /* | |
490 | * Store the result in the appropriate chars... | |
491 | */ | |
492 | ||
493 | switch (pos) | |
494 | { | |
495 | case 0 : | |
496 | if (outptr < outend) | |
497 | *outptr = base64 << 2; | |
498 | pos ++; | |
499 | break; | |
500 | case 1 : | |
501 | if (outptr < outend) | |
502 | *outptr++ |= (base64 >> 4) & 3; | |
503 | if (outptr < outend) | |
504 | *outptr = (base64 << 4) & 255; | |
505 | pos ++; | |
506 | break; | |
507 | case 2 : | |
508 | if (outptr < outend) | |
509 | *outptr++ |= (base64 >> 2) & 15; | |
510 | if (outptr < outend) | |
511 | *outptr = (base64 << 6) & 255; | |
512 | pos ++; | |
513 | break; | |
514 | case 3 : | |
515 | if (outptr < outend) | |
516 | *outptr++ |= base64; | |
517 | pos = 0; | |
518 | break; | |
519 | } | |
520 | } | |
521 | ||
522 | *outptr = '\0'; | |
523 | ||
524 | /* | |
525 | * Return the decoded string and size... | |
526 | */ | |
527 | ||
528 | *outlen = (int)(outptr - out); | |
529 | ||
530 | return (out); | |
531 | } | |
532 | ||
533 | ||
534 | /* | |
535 | * 'httpEncode64()' - Base64-encode a string. | |
ecdc0628 | 536 | * |
537 | * This function is deprecated. Use the httpEncode64_2() function instead | |
538 | * which provides buffer length arguments. | |
539 | * | |
540 | * @deprecated@ | |
ef416fc2 | 541 | */ |
542 | ||
543 | char * /* O - Encoded string */ | |
544 | httpEncode64(char *out, /* I - String to write to */ | |
545 | const char *in) /* I - String to read from */ | |
546 | { | |
b86bc4cf | 547 | return (httpEncode64_2(out, 512, in, (int)strlen(in))); |
ef416fc2 | 548 | } |
549 | ||
550 | ||
551 | /* | |
552 | * 'httpEncode64_2()' - Base64-encode a string. | |
553 | * | |
554 | * @since CUPS 1.1.21@ | |
555 | */ | |
556 | ||
557 | char * /* O - Encoded string */ | |
558 | httpEncode64_2(char *out, /* I - String to write to */ | |
559 | int outlen, /* I - Size of output string */ | |
560 | const char *in, /* I - String to read from */ | |
561 | int inlen) /* I - Size of input string */ | |
562 | { | |
563 | char *outptr, /* Output pointer */ | |
564 | *outend; /* End of output buffer */ | |
565 | static const char base64[] = /* Base64 characters... */ | |
566 | { | |
567 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
568 | "abcdefghijklmnopqrstuvwxyz" | |
569 | "0123456789" | |
570 | "+/" | |
571 | }; | |
572 | ||
573 | ||
574 | /* | |
575 | * Range check input... | |
576 | */ | |
577 | ||
578 | if (!out || outlen < 1 || !in) | |
579 | return (NULL); | |
580 | ||
581 | /* | |
582 | * Convert bytes to base-64... | |
583 | */ | |
584 | ||
585 | for (outptr = out, outend = out + outlen - 1; inlen > 0; in ++, inlen --) | |
586 | { | |
587 | /* | |
588 | * Encode the up to 3 characters as 4 Base64 numbers... | |
589 | */ | |
590 | ||
591 | if (outptr < outend) | |
592 | *outptr ++ = base64[(in[0] & 255) >> 2]; | |
26d47ec6 | 593 | |
ef416fc2 | 594 | if (outptr < outend) |
26d47ec6 | 595 | { |
596 | if (inlen > 1) | |
597 | *outptr ++ = base64[(((in[0] & 255) << 4) | ((in[1] & 255) >> 4)) & 63]; | |
598 | else | |
599 | *outptr ++ = base64[((in[0] & 255) << 4) & 63]; | |
600 | } | |
ef416fc2 | 601 | |
602 | in ++; | |
603 | inlen --; | |
604 | if (inlen <= 0) | |
605 | { | |
606 | if (outptr < outend) | |
607 | *outptr ++ = '='; | |
608 | if (outptr < outend) | |
609 | *outptr ++ = '='; | |
610 | break; | |
611 | } | |
612 | ||
613 | if (outptr < outend) | |
26d47ec6 | 614 | { |
615 | if (inlen > 1) | |
616 | *outptr ++ = base64[(((in[0] & 255) << 2) | ((in[1] & 255) >> 6)) & 63]; | |
617 | else | |
618 | *outptr ++ = base64[((in[0] & 255) << 2) & 63]; | |
619 | } | |
ef416fc2 | 620 | |
621 | in ++; | |
622 | inlen --; | |
623 | if (inlen <= 0) | |
624 | { | |
625 | if (outptr < outend) | |
626 | *outptr ++ = '='; | |
627 | break; | |
628 | } | |
629 | ||
630 | if (outptr < outend) | |
631 | *outptr ++ = base64[in[0] & 63]; | |
632 | } | |
633 | ||
634 | *outptr = '\0'; | |
635 | ||
636 | /* | |
637 | * Return the encoded string... | |
638 | */ | |
639 | ||
640 | return (out); | |
641 | } | |
642 | ||
643 | ||
644 | /* | |
645 | * 'httpGetDateString()' - Get a formatted date/time string from a time value. | |
646 | * | |
647 | * @deprecated@ | |
648 | */ | |
649 | ||
650 | const char * /* O - Date/time string */ | |
651 | httpGetDateString(time_t t) /* I - UNIX time */ | |
652 | { | |
653 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
654 | ||
655 | ||
656 | return (httpGetDateString2(t, cg->http_date, sizeof(cg->http_date))); | |
657 | } | |
658 | ||
659 | ||
660 | /* | |
661 | * 'httpGetDateString2()' - Get a formatted date/time string from a time value. | |
662 | * | |
663 | * @since CUPS 1.2@ | |
664 | */ | |
665 | ||
666 | const char * /* O - Date/time string */ | |
667 | httpGetDateString2(time_t t, /* I - UNIX time */ | |
668 | char *s, /* I - String buffer */ | |
669 | int slen) /* I - Size of string buffer */ | |
670 | { | |
671 | struct tm *tdate; /* UNIX date/time data */ | |
672 | ||
673 | ||
674 | tdate = gmtime(&t); | |
675 | snprintf(s, slen, "%s, %02d %s %d %02d:%02d:%02d GMT", | |
676 | http_days[tdate->tm_wday], tdate->tm_mday, | |
677 | http_months[tdate->tm_mon], tdate->tm_year + 1900, | |
678 | tdate->tm_hour, tdate->tm_min, tdate->tm_sec); | |
679 | ||
680 | return (s); | |
681 | } | |
682 | ||
683 | ||
684 | /* | |
685 | * 'httpGetDateTime()' - Get a time value from a formatted date/time string. | |
686 | */ | |
687 | ||
688 | time_t /* O - UNIX time */ | |
689 | httpGetDateTime(const char *s) /* I - Date/time string */ | |
690 | { | |
691 | int i; /* Looping var */ | |
692 | char mon[16]; /* Abbreviated month name */ | |
693 | int day, year; /* Day of month and year */ | |
694 | int hour, min, sec; /* Time */ | |
695 | int days; /* Number of days since 1970 */ | |
696 | static const int normal_days[] = /* Days to a month, normal years */ | |
697 | { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 }; | |
698 | static const int leap_days[] = /* Days to a month, leap years */ | |
699 | { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }; | |
700 | ||
701 | ||
702 | DEBUG_printf(("httpGetDateTime(s=\"%s\")\n", s)); | |
703 | ||
704 | /* | |
705 | * Extract the date and time from the formatted string... | |
706 | */ | |
707 | ||
708 | if (sscanf(s, "%*s%d%15s%d%d:%d:%d", &day, mon, &year, &hour, &min, &sec) < 6) | |
709 | return (0); | |
710 | ||
711 | DEBUG_printf((" day=%d, mon=\"%s\", year=%d, hour=%d, min=%d, sec=%d\n", | |
712 | day, mon, year, hour, min, sec)); | |
713 | ||
714 | /* | |
715 | * Convert the month name to a number from 0 to 11. | |
716 | */ | |
717 | ||
718 | for (i = 0; i < 12; i ++) | |
719 | if (!strcasecmp(mon, http_months[i])) | |
720 | break; | |
721 | ||
722 | if (i >= 12) | |
723 | return (0); | |
724 | ||
725 | DEBUG_printf((" i=%d\n", i)); | |
726 | ||
727 | /* | |
728 | * Now convert the date and time to a UNIX time value in seconds since | |
729 | * 1970. We can't use mktime() since the timezone may not be UTC but | |
730 | * the date/time string *is* UTC. | |
731 | */ | |
732 | ||
733 | if ((year & 3) == 0 && ((year % 100) != 0 || (year % 400) == 0)) | |
734 | days = leap_days[i] + day - 1; | |
735 | else | |
736 | days = normal_days[i] + day - 1; | |
737 | ||
738 | DEBUG_printf((" days=%d\n", days)); | |
739 | ||
740 | days += (year - 1970) * 365 + /* 365 days per year (normally) */ | |
741 | ((year - 1) / 4 - 492) - /* + leap days */ | |
742 | ((year - 1) / 100 - 19) + /* - 100 year days */ | |
743 | ((year - 1) / 400 - 4); /* + 400 year days */ | |
744 | ||
745 | DEBUG_printf((" days=%d\n", days)); | |
746 | ||
747 | return (days * 86400 + hour * 3600 + min * 60 + sec); | |
748 | } | |
749 | ||
750 | ||
751 | /* | |
752 | * 'httpSeparate()' - Separate a Universal Resource Identifier into its | |
753 | * components. | |
ecdc0628 | 754 | * |
755 | * This function is deprecated; use the httpSeparateURI() function instead. | |
756 | * | |
757 | * @deprecated@ | |
ef416fc2 | 758 | */ |
759 | ||
760 | void | |
761 | httpSeparate(const char *uri, /* I - Universal Resource Identifier */ | |
762 | char *scheme, /* O - Scheme [32] (http, https, etc.) */ | |
763 | char *username, /* O - Username [1024] */ | |
764 | char *host, /* O - Hostname [1024] */ | |
765 | int *port, /* O - Port number to use */ | |
766 | char *resource) /* O - Resource/filename [1024] */ | |
767 | { | |
a4d04587 | 768 | httpSeparateURI(HTTP_URI_CODING_ALL, uri, scheme, 32, username, |
769 | HTTP_MAX_URI, host, HTTP_MAX_URI, port, resource, | |
770 | HTTP_MAX_URI); | |
ef416fc2 | 771 | } |
772 | ||
773 | ||
774 | /* | |
775 | * 'httpSeparate2()' - Separate a Universal Resource Identifier into its | |
776 | * components. | |
777 | * | |
ecdc0628 | 778 | * This function is deprecated; use the httpSeparateURI() function instead. |
779 | * | |
ef416fc2 | 780 | * @since CUPS 1.1.21@ |
ecdc0628 | 781 | * @deprecated@ |
ef416fc2 | 782 | */ |
783 | ||
784 | void | |
785 | httpSeparate2(const char *uri, /* I - Universal Resource Identifier */ | |
786 | char *scheme, /* O - Scheme (http, https, etc.) */ | |
787 | int schemelen, /* I - Size of scheme buffer */ | |
788 | char *username, /* O - Username */ | |
789 | int usernamelen, /* I - Size of username buffer */ | |
790 | char *host, /* O - Hostname */ | |
791 | int hostlen, /* I - Size of hostname buffer */ | |
792 | int *port, /* O - Port number to use */ | |
793 | char *resource, /* O - Resource/filename */ | |
794 | int resourcelen) /* I - Size of resource buffer */ | |
795 | { | |
a4d04587 | 796 | httpSeparateURI(HTTP_URI_CODING_ALL, uri, scheme, schemelen, username, |
797 | usernamelen, host, hostlen, port, resource, resourcelen); | |
ef416fc2 | 798 | } |
799 | ||
800 | ||
801 | /* | |
802 | * 'httpSeparateURI()' - Separate a Universal Resource Identifier into its | |
803 | * components. | |
804 | * | |
805 | * @since CUPS 1.2@ | |
806 | */ | |
807 | ||
808 | http_uri_status_t /* O - Result of separation */ | |
a4d04587 | 809 | httpSeparateURI( |
810 | http_uri_coding_t decoding, /* I - Decoding flags */ | |
811 | const char *uri, /* I - Universal Resource Identifier */ | |
812 | char *scheme, /* O - Scheme (http, https, etc.) */ | |
813 | int schemelen, /* I - Size of scheme buffer */ | |
814 | char *username, /* O - Username */ | |
815 | int usernamelen, /* I - Size of username buffer */ | |
816 | char *host, /* O - Hostname */ | |
817 | int hostlen, /* I - Size of hostname buffer */ | |
818 | int *port, /* O - Port number to use */ | |
819 | char *resource, /* O - Resource/filename */ | |
820 | int resourcelen) /* I - Size of resource buffer */ | |
ef416fc2 | 821 | { |
822 | char *ptr, /* Pointer into string... */ | |
823 | *end; /* End of string */ | |
824 | const char *sep; /* Separator character */ | |
825 | http_uri_status_t status; /* Result of separation */ | |
826 | ||
827 | ||
828 | /* | |
829 | * Initialize everything to blank... | |
830 | */ | |
831 | ||
832 | if (scheme && schemelen > 0) | |
833 | *scheme = '\0'; | |
834 | ||
835 | if (username && usernamelen > 0) | |
836 | *username = '\0'; | |
837 | ||
838 | if (host && hostlen > 0) | |
839 | *host = '\0'; | |
840 | ||
841 | if (port) | |
842 | *port = 0; | |
843 | ||
844 | if (resource && resourcelen > 0) | |
845 | *resource = '\0'; | |
846 | ||
847 | /* | |
848 | * Range check input... | |
849 | */ | |
850 | ||
851 | if (!uri || !port || !scheme || schemelen <= 0 || !username || | |
852 | usernamelen <= 0 || !host || hostlen <= 0 || !resource || | |
853 | resourcelen <= 0) | |
854 | return (HTTP_URI_BAD_ARGUMENTS); | |
855 | ||
856 | if (!*uri) | |
857 | return (HTTP_URI_BAD_URI); | |
858 | ||
859 | /* | |
860 | * Grab the scheme portion of the URI... | |
861 | */ | |
862 | ||
863 | status = HTTP_URI_OK; | |
864 | ||
865 | if (!strncmp(uri, "//", 2)) | |
866 | { | |
867 | /* | |
868 | * Workaround for HP IPP client bug... | |
869 | */ | |
870 | ||
871 | strlcpy(scheme, "ipp", schemelen); | |
872 | status = HTTP_URI_MISSING_SCHEME; | |
873 | } | |
874 | else if (*uri == '/') | |
875 | { | |
876 | /* | |
877 | * Filename... | |
878 | */ | |
879 | ||
880 | strlcpy(scheme, "file", schemelen); | |
881 | status = HTTP_URI_MISSING_SCHEME; | |
882 | } | |
883 | else | |
884 | { | |
885 | /* | |
886 | * Standard URI with scheme... | |
887 | */ | |
888 | ||
889 | for (ptr = scheme, end = scheme + schemelen - 1; | |
890 | *uri && *uri != ':' && ptr < end;) | |
891 | if (isalnum(*uri & 255) || *uri == '-' || *uri == '+' || *uri == '.') | |
892 | *ptr++ = *uri++; | |
893 | else | |
894 | break; | |
895 | ||
896 | *ptr = '\0'; | |
897 | ||
898 | if (*uri != ':') | |
899 | { | |
900 | *scheme = '\0'; | |
901 | return (HTTP_URI_BAD_SCHEME); | |
902 | } | |
903 | ||
904 | uri ++; | |
905 | } | |
906 | ||
907 | /* | |
908 | * Set the default port number... | |
909 | */ | |
910 | ||
911 | if (!strcmp(scheme, "http")) | |
912 | *port = 80; | |
913 | else if (!strcmp(scheme, "https")) | |
914 | *port = 443; | |
915 | else if (!strcmp(scheme, "ipp")) | |
916 | *port = 631; | |
917 | else if (!strcasecmp(scheme, "lpd")) | |
918 | *port = 515; | |
919 | else if (!strcmp(scheme, "socket")) /* Not yet registered with IANA... */ | |
920 | *port = 9100; | |
921 | else if (strcmp(scheme, "file") && strcmp(scheme, "mailto")) | |
922 | status = HTTP_URI_UNKNOWN_SCHEME; | |
923 | ||
924 | /* | |
925 | * Now see if we have a hostname... | |
926 | */ | |
927 | ||
928 | if (!strncmp(uri, "//", 2)) | |
929 | { | |
930 | /* | |
931 | * Yes, extract it... | |
932 | */ | |
933 | ||
934 | uri += 2; | |
935 | ||
936 | /* | |
937 | * Grab the username, if any... | |
938 | */ | |
939 | ||
940 | if ((sep = strpbrk(uri, "@/")) != NULL && *sep == '@') | |
941 | { | |
942 | /* | |
943 | * Get a username:password combo... | |
944 | */ | |
945 | ||
a4d04587 | 946 | uri = http_copy_decode(username, uri, usernamelen, "@", |
947 | decoding & HTTP_URI_CODING_USERNAME); | |
ef416fc2 | 948 | |
949 | if (!uri) | |
950 | { | |
951 | *username = '\0'; | |
952 | return (HTTP_URI_BAD_USERNAME); | |
953 | } | |
954 | ||
955 | uri ++; | |
956 | } | |
957 | ||
958 | /* | |
959 | * Then the hostname/IP address... | |
960 | */ | |
961 | ||
962 | if (*uri == '[') | |
963 | { | |
964 | /* | |
965 | * Grab IPv6 address... | |
966 | */ | |
967 | ||
968 | uri ++; | |
969 | if (!strncmp(uri, "v1.", 3)) | |
970 | uri += 3; /* Skip IPvN leader... */ | |
971 | ||
a4d04587 | 972 | uri = http_copy_decode(host, uri, hostlen, "]", |
973 | decoding & HTTP_URI_CODING_HOSTNAME); | |
ef416fc2 | 974 | |
975 | if (!uri) | |
976 | { | |
977 | *host = '\0'; | |
978 | return (HTTP_URI_BAD_HOSTNAME); | |
979 | } | |
980 | ||
981 | /* | |
982 | * Validate value... | |
983 | */ | |
984 | ||
985 | if (*uri != ']') | |
986 | { | |
987 | *host = '\0'; | |
988 | return (HTTP_URI_BAD_HOSTNAME); | |
989 | } | |
990 | ||
991 | uri ++; | |
992 | ||
993 | for (ptr = host; *ptr; ptr ++) | |
994 | if (*ptr == '+') | |
995 | { | |
996 | /* | |
997 | * Convert zone separator to % and stop here... | |
998 | */ | |
999 | ||
1000 | *ptr = '%'; | |
1001 | break; | |
1002 | } | |
1003 | else if (*ptr != ':' && *ptr != '.' && !isxdigit(*ptr & 255)) | |
1004 | { | |
1005 | *host = '\0'; | |
1006 | return (HTTP_URI_BAD_HOSTNAME); | |
1007 | } | |
1008 | } | |
1009 | else | |
1010 | { | |
1011 | /* | |
b423cd4c | 1012 | * Validate the hostname or IPv4 address first... |
1013 | */ | |
1014 | ||
1015 | for (ptr = (char *)uri; *ptr; ptr ++) | |
1016 | if (strchr(":?/", *ptr)) | |
1017 | break; | |
1018 | else if (!strchr("abcdefghijklmnopqrstuvwxyz" | |
1019 | "ABCDEFGHIJKLMNOPQRSTUVWXYZ" | |
1020 | "0123456789" | |
1021 | "-._~" | |
1022 | "%" | |
2fb76298 | 1023 | "!$&'()*+,;=\\", *ptr)) |
b423cd4c | 1024 | { |
1025 | *host = '\0'; | |
1026 | return (HTTP_URI_BAD_HOSTNAME); | |
1027 | } | |
1028 | ||
1029 | /* | |
1030 | * Then copy the hostname or IPv4 address to the buffer... | |
ef416fc2 | 1031 | */ |
1032 | ||
a4d04587 | 1033 | uri = http_copy_decode(host, uri, hostlen, ":?/", |
1034 | decoding & HTTP_URI_CODING_HOSTNAME); | |
ef416fc2 | 1035 | |
1036 | if (!uri) | |
1037 | { | |
1038 | *host = '\0'; | |
1039 | return (HTTP_URI_BAD_HOSTNAME); | |
1040 | } | |
ef416fc2 | 1041 | } |
1042 | ||
1043 | /* | |
1044 | * Validate hostname for file scheme - only empty and localhost are | |
1045 | * acceptable. | |
1046 | */ | |
1047 | ||
1048 | if (!strcmp(scheme, "file") && strcmp(host, "localhost") && host[0]) | |
1049 | { | |
1050 | *host = '\0'; | |
1051 | return (HTTP_URI_BAD_HOSTNAME); | |
1052 | } | |
1053 | ||
1054 | /* | |
1055 | * See if we have a port number... | |
1056 | */ | |
1057 | ||
1058 | if (*uri == ':') | |
1059 | { | |
1060 | /* | |
1061 | * Yes, collect the port number... | |
1062 | */ | |
1063 | ||
1064 | *port = strtol(uri + 1, (char **)&uri, 10); | |
1065 | ||
d6ae789d | 1066 | if (*uri != '/' && *uri) |
ef416fc2 | 1067 | { |
1068 | *port = 0; | |
1069 | return (HTTP_URI_BAD_PORT); | |
1070 | } | |
1071 | } | |
1072 | } | |
1073 | ||
1074 | /* | |
1075 | * The remaining portion is the resource string... | |
1076 | */ | |
1077 | ||
1078 | if (*uri == '?' || !*uri) | |
1079 | { | |
1080 | /* | |
1081 | * Hostname but no path... | |
1082 | */ | |
1083 | ||
1084 | status = HTTP_URI_MISSING_RESOURCE; | |
1085 | *resource = '/'; | |
fa73b229 | 1086 | |
1087 | /* | |
a4d04587 | 1088 | * Copy any query string... |
fa73b229 | 1089 | */ |
1090 | ||
1091 | if (*uri == '?') | |
a4d04587 | 1092 | uri = http_copy_decode(resource + 1, uri, resourcelen - 1, NULL, |
1093 | decoding & HTTP_URI_CODING_QUERY); | |
fa73b229 | 1094 | else |
1095 | resource[1] = '\0'; | |
ef416fc2 | 1096 | } |
1097 | else | |
fa73b229 | 1098 | { |
a4d04587 | 1099 | uri = http_copy_decode(resource, uri, resourcelen, "?", |
1100 | decoding & HTTP_URI_CODING_RESOURCE); | |
fa73b229 | 1101 | |
1102 | if (uri && *uri == '?') | |
1103 | { | |
1104 | /* | |
a4d04587 | 1105 | * Concatenate any query string... |
fa73b229 | 1106 | */ |
1107 | ||
a4d04587 | 1108 | char *resptr = resource + strlen(resource); |
1109 | ||
b86bc4cf | 1110 | uri = http_copy_decode(resptr, uri, resourcelen - (int)(resptr - resource), |
a4d04587 | 1111 | NULL, decoding & HTTP_URI_CODING_QUERY); |
fa73b229 | 1112 | } |
1113 | } | |
ef416fc2 | 1114 | |
1115 | if (!uri) | |
1116 | { | |
1117 | *resource = '\0'; | |
1118 | return (HTTP_URI_BAD_RESOURCE); | |
1119 | } | |
1120 | ||
1121 | /* | |
1122 | * Return the URI separation status... | |
1123 | */ | |
1124 | ||
1125 | return (status); | |
1126 | } | |
1127 | ||
1128 | ||
1129 | /* | |
1130 | * 'httpStatus()' - Return a short string describing a HTTP status code. | |
1131 | */ | |
1132 | ||
1133 | const char * /* O - String or NULL */ | |
1134 | httpStatus(http_status_t status) /* I - HTTP status code */ | |
1135 | { | |
1136 | switch (status) | |
1137 | { | |
1138 | case HTTP_CONTINUE : | |
1139 | return ("Continue"); | |
1140 | case HTTP_SWITCHING_PROTOCOLS : | |
1141 | return ("Switching Protocols"); | |
1142 | case HTTP_OK : | |
1143 | return ("OK"); | |
1144 | case HTTP_CREATED : | |
1145 | return ("Created"); | |
1146 | case HTTP_ACCEPTED : | |
1147 | return ("Accepted"); | |
1148 | case HTTP_NO_CONTENT : | |
1149 | return ("No Content"); | |
d6ae789d | 1150 | case HTTP_MOVED_PERMANENTLY : |
1151 | return ("Moved Permanently"); | |
1152 | case HTTP_SEE_OTHER : | |
1153 | return ("See Other"); | |
ef416fc2 | 1154 | case HTTP_NOT_MODIFIED : |
1155 | return ("Not Modified"); | |
1156 | case HTTP_BAD_REQUEST : | |
1157 | return ("Bad Request"); | |
1158 | case HTTP_UNAUTHORIZED : | |
1159 | return ("Unauthorized"); | |
1160 | case HTTP_FORBIDDEN : | |
1161 | return ("Forbidden"); | |
1162 | case HTTP_NOT_FOUND : | |
1163 | return ("Not Found"); | |
1164 | case HTTP_REQUEST_TOO_LARGE : | |
1165 | return ("Request Entity Too Large"); | |
1166 | case HTTP_URI_TOO_LONG : | |
1167 | return ("URI Too Long"); | |
1168 | case HTTP_UPGRADE_REQUIRED : | |
1169 | return ("Upgrade Required"); | |
1170 | case HTTP_NOT_IMPLEMENTED : | |
1171 | return ("Not Implemented"); | |
1172 | case HTTP_NOT_SUPPORTED : | |
1173 | return ("Not Supported"); | |
b423cd4c | 1174 | case HTTP_EXPECTATION_FAILED : |
1175 | return ("Expectation Failed"); | |
1176 | ||
ef416fc2 | 1177 | default : |
1178 | return ("Unknown"); | |
1179 | } | |
1180 | } | |
1181 | ||
1182 | ||
1183 | #ifndef HAVE_HSTRERROR | |
1184 | /* | |
1185 | * '_cups_hstrerror()' - hstrerror() emulation function for Solaris and others... | |
1186 | */ | |
1187 | ||
1188 | const char * /* O - Error string */ | |
1189 | _cups_hstrerror(int error) /* I - Error number */ | |
1190 | { | |
1191 | static const char * const errors[] = /* Error strings */ | |
1192 | { | |
1193 | "OK", | |
1194 | "Host not found.", | |
1195 | "Try again.", | |
1196 | "Unrecoverable lookup error.", | |
1197 | "No data associated with name." | |
1198 | }; | |
1199 | ||
1200 | ||
1201 | if (error < 0 || error > 4) | |
1202 | return ("Unknown hostname lookup error."); | |
1203 | else | |
1204 | return (errors[error]); | |
1205 | } | |
1206 | #endif /* !HAVE_HSTRERROR */ | |
1207 | ||
1208 | ||
839a51c8 MS |
1209 | /* |
1210 | * '_httpEncodeURI()' - Percent-encode a HTTP request URI. | |
1211 | */ | |
1212 | ||
1213 | char * /* O - Encoded URI */ | |
1214 | _httpEncodeURI(char *dst, /* I - Destination buffer */ | |
1215 | const char *src, /* I - Source URI */ | |
1216 | size_t dstsize) /* I - Size of destination buffer */ | |
1217 | { | |
1218 | http_copy_encode(dst, src, dst + dstsize - 1, NULL, NULL, 1); | |
1219 | return (dst); | |
1220 | } | |
1221 | ||
1222 | ||
ef416fc2 | 1223 | /* |
1224 | * 'http_copy_decode()' - Copy and decode a URI. | |
1225 | */ | |
1226 | ||
1227 | static const char * /* O - New source pointer or NULL on error */ | |
1228 | http_copy_decode(char *dst, /* O - Destination buffer */ | |
1229 | const char *src, /* I - Source pointer */ | |
1230 | int dstsize, /* I - Destination size */ | |
a4d04587 | 1231 | const char *term, /* I - Terminating characters */ |
1232 | int decode) /* I - Decode %-encoded values */ | |
ef416fc2 | 1233 | { |
1234 | char *ptr, /* Pointer into buffer */ | |
1235 | *end; /* End of buffer */ | |
1236 | int quoted; /* Quoted character */ | |
1237 | ||
1238 | ||
1239 | /* | |
1240 | * Copy the src to the destination until we hit a terminating character | |
1241 | * or the end of the string. | |
1242 | */ | |
1243 | ||
e00b005a | 1244 | for (ptr = dst, end = dst + dstsize - 1; |
1245 | *src && (!term || !strchr(term, *src)); | |
1246 | src ++) | |
ef416fc2 | 1247 | if (ptr < end) |
1248 | { | |
a4d04587 | 1249 | if (*src == '%' && decode) |
ef416fc2 | 1250 | { |
1251 | if (isxdigit(src[1] & 255) && isxdigit(src[2] & 255)) | |
1252 | { | |
1253 | /* | |
1254 | * Grab a hex-encoded character... | |
1255 | */ | |
1256 | ||
1257 | src ++; | |
1258 | if (isalpha(*src)) | |
1259 | quoted = (tolower(*src) - 'a' + 10) << 4; | |
1260 | else | |
1261 | quoted = (*src - '0') << 4; | |
1262 | ||
1263 | src ++; | |
1264 | if (isalpha(*src)) | |
1265 | quoted |= tolower(*src) - 'a' + 10; | |
1266 | else | |
1267 | quoted |= *src - '0'; | |
1268 | ||
1269 | *ptr++ = quoted; | |
1270 | } | |
1271 | else | |
1272 | { | |
1273 | /* | |
1274 | * Bad hex-encoded character... | |
1275 | */ | |
1276 | ||
1277 | *ptr = '\0'; | |
1278 | return (NULL); | |
1279 | } | |
1280 | } | |
1281 | else | |
1282 | *ptr++ = *src; | |
1283 | } | |
1284 | ||
1285 | *ptr = '\0'; | |
1286 | ||
1287 | return (src); | |
1288 | } | |
1289 | ||
1290 | ||
1291 | /* | |
1292 | * 'http_copy_encode()' - Copy and encode a URI. | |
1293 | */ | |
1294 | ||
1295 | static char * /* O - End of current URI */ | |
1296 | http_copy_encode(char *dst, /* O - Destination buffer */ | |
1297 | const char *src, /* I - Source pointer */ | |
1298 | char *dstend, /* I - End of destination buffer */ | |
a4d04587 | 1299 | const char *reserved, /* I - Extra reserved characters */ |
1300 | const char *term, /* I - Terminating characters */ | |
1301 | int encode) /* I - %-encode reserved chars? */ | |
ef416fc2 | 1302 | { |
ac884b6a | 1303 | static const char hex[] = "0123456789ABCDEF"; |
ef416fc2 | 1304 | |
1305 | ||
1306 | while (*src && dst < dstend) | |
1307 | { | |
a4d04587 | 1308 | if (term && *src == *term) |
1309 | return (dst); | |
1310 | ||
1311 | if (encode && (*src == '%' || *src <= ' ' || *src & 128 || | |
1312 | (reserved && strchr(reserved, *src)))) | |
ef416fc2 | 1313 | { |
1314 | /* | |
1315 | * Hex encode reserved characters... | |
1316 | */ | |
1317 | ||
1318 | if ((dst + 2) >= dstend) | |
1319 | break; | |
1320 | ||
1321 | *dst++ = '%'; | |
1322 | *dst++ = hex[(*src >> 4) & 15]; | |
1323 | *dst++ = hex[*src & 15]; | |
1324 | ||
1325 | src ++; | |
1326 | } | |
1327 | else | |
1328 | *dst++ = *src++; | |
1329 | } | |
1330 | ||
839a51c8 MS |
1331 | *dst = '\0'; |
1332 | ||
ef416fc2 | 1333 | if (*src) |
1334 | return (NULL); | |
1335 | else | |
1336 | return (dst); | |
1337 | } | |
1338 | ||
1339 | ||
1340 | /* | |
bc44d920 | 1341 | * End of "$Id: http-support.c 6649 2007-07-11 21:46:42Z mike $". |
ef416fc2 | 1342 | */ |