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1 /***************************************************************************
2  *                                  _   _ ____  _
3  *  Project                     ___| | | |  _ \| |
4  *                             / __| | | | |_) | |
5  *                            | (__| |_| |  _ <| |___
6  *                             \___|\___/|_| \_\_____|
7  *
8  * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
9  *
10  * This software is licensed as described in the file COPYING, which
11  * you should have received as part of this distribution. The terms
12  * are also available at https://curl.haxx.se/docs/copyright.html.
13  *
14  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
15  * copies of the Software, and permit persons to whom the Software is
16  * furnished to do so, under the terms of the COPYING file.
17  *
18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
19  * KIND, either express or implied.
20  *
21  ***************************************************************************/
22 #include "tool_setup.h"
23 
24 #ifndef CURL_DISABLE_LIBCURL_OPTION
25 
26 #define ENABLE_CURLX_PRINTF
27 /* use our own printf() functions */
28 #include "curlx.h"
29 
30 #include "tool_cfgable.h"
31 #include "tool_easysrc.h"
32 #include "tool_setopt.h"
33 #include "tool_convert.h"
34 
35 #include "memdebug.h" /* keep this as LAST include */
36 
37 /* Lookup tables for converting setopt values back to symbols */
38 /* For enums, values may be in any order. */
39 /* For bit masks, put combinations first, then single bits, */
40 /* and finally any "NONE" value. */
41 
42 #define NV(e) {#e, e}
43 #define NV1(e, v) {#e, (v)}
44 #define NVEND {NULL, 0}         /* sentinel to mark end of list */
45 
46 const NameValue setopt_nv_CURLPROXY[] = {
47   NV(CURLPROXY_HTTP),
48   NV(CURLPROXY_HTTP_1_0),
49   NV(CURLPROXY_HTTPS),
50   NV(CURLPROXY_SOCKS4),
51   NV(CURLPROXY_SOCKS5),
52   NV(CURLPROXY_SOCKS4A),
53   NV(CURLPROXY_SOCKS5_HOSTNAME),
54   NVEND,
55 };
56 
57 const NameValue setopt_nv_CURL_SOCKS_PROXY[] = {
58   NV(CURLPROXY_SOCKS4),
59   NV(CURLPROXY_SOCKS5),
60   NV(CURLPROXY_SOCKS4A),
61   NV(CURLPROXY_SOCKS5_HOSTNAME),
62   NVEND,
63 };
64 
65 const NameValueUnsigned setopt_nv_CURLAUTH[] = {
66   NV(CURLAUTH_ANY),             /* combination */
67   NV(CURLAUTH_ANYSAFE),         /* combination */
68   NV(CURLAUTH_BASIC),
69   NV(CURLAUTH_DIGEST),
70   NV(CURLAUTH_GSSNEGOTIATE),
71   NV(CURLAUTH_NTLM),
72   NV(CURLAUTH_DIGEST_IE),
73   NV(CURLAUTH_NTLM_WB),
74   NV(CURLAUTH_ONLY),
75   NV(CURLAUTH_NONE),
76   NVEND,
77 };
78 
79 const NameValue setopt_nv_CURL_HTTP_VERSION[] = {
80   NV(CURL_HTTP_VERSION_NONE),
81   NV(CURL_HTTP_VERSION_1_0),
82   NV(CURL_HTTP_VERSION_1_1),
83   NV(CURL_HTTP_VERSION_2_0),
84   NV(CURL_HTTP_VERSION_2TLS),
85   NV(CURL_HTTP_VERSION_3),
86   NVEND,
87 };
88 
89 const NameValue setopt_nv_CURL_SSLVERSION[] = {
90   NV(CURL_SSLVERSION_DEFAULT),
91   NV(CURL_SSLVERSION_TLSv1),
92   NV(CURL_SSLVERSION_SSLv2),
93   NV(CURL_SSLVERSION_SSLv3),
94   NV(CURL_SSLVERSION_TLSv1_0),
95   NV(CURL_SSLVERSION_TLSv1_1),
96   NV(CURL_SSLVERSION_TLSv1_2),
97   NV(CURL_SSLVERSION_TLSv1_3),
98   NVEND,
99 };
100 
101 const NameValue setopt_nv_CURL_TIMECOND[] = {
102   NV(CURL_TIMECOND_IFMODSINCE),
103   NV(CURL_TIMECOND_IFUNMODSINCE),
104   NV(CURL_TIMECOND_LASTMOD),
105   NV(CURL_TIMECOND_NONE),
106   NVEND,
107 };
108 
109 const NameValue setopt_nv_CURLFTPSSL_CCC[] = {
110   NV(CURLFTPSSL_CCC_NONE),
111   NV(CURLFTPSSL_CCC_PASSIVE),
112   NV(CURLFTPSSL_CCC_ACTIVE),
113   NVEND,
114 };
115 
116 const NameValue setopt_nv_CURLUSESSL[] = {
117   NV(CURLUSESSL_NONE),
118   NV(CURLUSESSL_TRY),
119   NV(CURLUSESSL_CONTROL),
120   NV(CURLUSESSL_ALL),
121   NVEND,
122 };
123 
124 const NameValueUnsigned setopt_nv_CURLSSLOPT[] = {
125   NV(CURLSSLOPT_ALLOW_BEAST),
126   NV(CURLSSLOPT_NO_REVOKE),
127   NVEND,
128 };
129 
130 const NameValue setopt_nv_CURL_NETRC[] = {
131   NV(CURL_NETRC_IGNORED),
132   NV(CURL_NETRC_OPTIONAL),
133   NV(CURL_NETRC_REQUIRED),
134   NVEND,
135 };
136 
137 /* These mappings essentially triplicated - see
138  * tool_libinfo.c and tool_paramhlp.c */
139 const NameValue setopt_nv_CURLPROTO[] = {
140   NV(CURLPROTO_ALL),            /* combination */
141   NV(CURLPROTO_DICT),
142   NV(CURLPROTO_FILE),
143   NV(CURLPROTO_FTP),
144   NV(CURLPROTO_FTPS),
145   NV(CURLPROTO_GOPHER),
146   NV(CURLPROTO_HTTP),
147   NV(CURLPROTO_HTTPS),
148   NV(CURLPROTO_IMAP),
149   NV(CURLPROTO_IMAPS),
150   NV(CURLPROTO_LDAP),
151   NV(CURLPROTO_LDAPS),
152   NV(CURLPROTO_POP3),
153   NV(CURLPROTO_POP3S),
154   NV(CURLPROTO_RTSP),
155   NV(CURLPROTO_SCP),
156   NV(CURLPROTO_SFTP),
157   NV(CURLPROTO_SMB),
158   NV(CURLPROTO_SMBS),
159   NV(CURLPROTO_SMTP),
160   NV(CURLPROTO_SMTPS),
161   NV(CURLPROTO_TELNET),
162   NV(CURLPROTO_TFTP),
163   NVEND,
164 };
165 
166 /* These options have non-zero default values. */
167 static const NameValue setopt_nv_CURLNONZERODEFAULTS[] = {
168   NV1(CURLOPT_SSL_VERIFYPEER, 1),
169   NV1(CURLOPT_SSL_VERIFYHOST, 1),
170   NV1(CURLOPT_SSL_ENABLE_NPN, 1),
171   NV1(CURLOPT_SSL_ENABLE_ALPN, 1),
172   NV1(CURLOPT_TCP_NODELAY, 1),
173   NV1(CURLOPT_PROXY_SSL_VERIFYPEER, 1),
174   NV1(CURLOPT_PROXY_SSL_VERIFYHOST, 1),
175   NV1(CURLOPT_SOCKS5_AUTH, 1),
176   NVEND
177 };
178 
179 /* Format and add code; jump to nomem on malloc error */
180 #define ADD(args) do { \
181   ret = easysrc_add args; \
182   if(ret) \
183     goto nomem; \
184 } WHILE_FALSE
185 #define ADDF(args) do { \
186   ret = easysrc_addf args; \
187   if(ret) \
188     goto nomem; \
189 } WHILE_FALSE
190 #define NULL_CHECK(p) do { \
191   if(!p) { \
192     ret = CURLE_OUT_OF_MEMORY; \
193     goto nomem; \
194   } \
195 } WHILE_FALSE
196 
197 #define DECL0(s) ADD((&easysrc_decl, s))
198 #define DECL1(f,a) ADDF((&easysrc_decl, f,a))
199 
200 #define DATA0(s) ADD((&easysrc_data, s))
201 #define DATA1(f,a) ADDF((&easysrc_data, f,a))
202 #define DATA2(f,a,b) ADDF((&easysrc_data, f,a,b))
203 #define DATA3(f,a,b,c) ADDF((&easysrc_data, f,a,b,c))
204 
205 #define CODE0(s) ADD((&easysrc_code, s))
206 #define CODE1(f,a) ADDF((&easysrc_code, f,a))
207 #define CODE2(f,a,b) ADDF((&easysrc_code, f,a,b))
208 #define CODE3(f,a,b,c) ADDF((&easysrc_code, f,a,b,c))
209 
210 #define CLEAN0(s) ADD((&easysrc_clean, s))
211 #define CLEAN1(f,a) ADDF((&easysrc_clean, f,a))
212 
213 #define REM0(s) ADD((&easysrc_toohard, s))
214 #define REM1(f,a) ADDF((&easysrc_toohard, f,a))
215 #define REM2(f,a,b) ADDF((&easysrc_toohard, f,a,b))
216 
217 /* Escape string to C string syntax.  Return NULL if out of memory.
218  * Is this correct for those wacky EBCDIC guys? */
c_escape(const char * str,size_t len)219 static char *c_escape(const char *str, size_t len)
220 {
221   const char *s;
222   unsigned char c;
223   char *escaped, *e;
224 
225   if(len == CURL_ZERO_TERMINATED)
226     len = strlen(str);
227 
228   /* Check for possible overflow. */
229   if(len > (~(size_t) 0) / 4)
230     return NULL;
231 
232   /* Allocate space based on worst-case */
233   escaped = malloc(4 * len + 1);
234   if(!escaped)
235     return NULL;
236 
237   e = escaped;
238   for(s = str; (c = *s) != '\0'; s++) {
239     if(c == '\n') {
240       strcpy(e, "\\n");
241       e += 2;
242     }
243     else if(c == '\r') {
244       strcpy(e, "\\r");
245       e += 2;
246     }
247     else if(c == '\t') {
248       strcpy(e, "\\t");
249       e += 2;
250     }
251     else if(c == '\\') {
252       strcpy(e, "\\\\");
253       e += 2;
254     }
255     else if(c == '"') {
256       strcpy(e, "\\\"");
257       e += 2;
258     }
259     else if(! isprint(c)) {
260       msnprintf(e, 5, "\\%03o", (unsigned)c);
261       e += 4;
262     }
263     else
264       *e++ = c;
265   }
266   *e = '\0';
267   return escaped;
268 }
269 
270 /* setopt wrapper for enum types */
tool_setopt_enum(CURL * curl,struct GlobalConfig * config,const char * name,CURLoption tag,const NameValue * nvlist,long lval)271 CURLcode tool_setopt_enum(CURL *curl, struct GlobalConfig *config,
272                           const char *name, CURLoption tag,
273                           const NameValue *nvlist, long lval)
274 {
275   CURLcode ret = CURLE_OK;
276   bool skip = FALSE;
277 
278   ret = curl_easy_setopt(curl, tag, lval);
279   if(!lval)
280     skip = TRUE;
281 
282   if(config->libcurl && !skip && !ret) {
283     /* we only use this for real if --libcurl was used */
284     const NameValue *nv = NULL;
285     for(nv = nvlist; nv->name; nv++) {
286       if(nv->value == lval) break; /* found it */
287     }
288     if(! nv->name) {
289       /* If no definition was found, output an explicit value.
290        * This could happen if new values are defined and used
291        * but the NameValue list is not updated. */
292       CODE2("curl_easy_setopt(hnd, %s, %ldL);", name, lval);
293     }
294     else {
295       CODE2("curl_easy_setopt(hnd, %s, (long)%s);", name, nv->name);
296     }
297   }
298 
299  nomem:
300   return ret;
301 }
302 
303 /* setopt wrapper for flags */
tool_setopt_flags(CURL * curl,struct GlobalConfig * config,const char * name,CURLoption tag,const NameValue * nvlist,long lval)304 CURLcode tool_setopt_flags(CURL *curl, struct GlobalConfig *config,
305                            const char *name, CURLoption tag,
306                            const NameValue *nvlist, long lval)
307 {
308   CURLcode ret = CURLE_OK;
309   bool skip = FALSE;
310 
311   ret = curl_easy_setopt(curl, tag, lval);
312   if(!lval)
313     skip = TRUE;
314 
315   if(config->libcurl && !skip && !ret) {
316     /* we only use this for real if --libcurl was used */
317     char preamble[80];          /* should accommodate any symbol name */
318     long rest = lval;           /* bits not handled yet */
319     const NameValue *nv = NULL;
320     msnprintf(preamble, sizeof(preamble),
321               "curl_easy_setopt(hnd, %s, ", name);
322     for(nv = nvlist; nv->name; nv++) {
323       if((nv->value & ~ rest) == 0) {
324         /* all value flags contained in rest */
325         rest &= ~ nv->value;    /* remove bits handled here */
326         CODE3("%s(long)%s%s",
327               preamble, nv->name, rest ? " |" : ");");
328         if(!rest)
329           break;                /* handled them all */
330         /* replace with all spaces for continuation line */
331         msnprintf(preamble, sizeof(preamble), "%*s", strlen(preamble), "");
332       }
333     }
334     /* If any bits have no definition, output an explicit value.
335      * This could happen if new bits are defined and used
336      * but the NameValue list is not updated. */
337     if(rest)
338       CODE2("%s%ldL);", preamble, rest);
339   }
340 
341  nomem:
342   return ret;
343 }
344 
345 /* setopt wrapper for bitmasks */
tool_setopt_bitmask(CURL * curl,struct GlobalConfig * config,const char * name,CURLoption tag,const NameValueUnsigned * nvlist,long lval)346 CURLcode tool_setopt_bitmask(CURL *curl, struct GlobalConfig *config,
347                              const char *name, CURLoption tag,
348                              const NameValueUnsigned *nvlist,
349                              long lval)
350 {
351   CURLcode ret = CURLE_OK;
352   bool skip = FALSE;
353 
354   ret = curl_easy_setopt(curl, tag, lval);
355   if(!lval)
356     skip = TRUE;
357 
358   if(config->libcurl && !skip && !ret) {
359     /* we only use this for real if --libcurl was used */
360     char preamble[80];
361     unsigned long rest = (unsigned long)lval;
362     const NameValueUnsigned *nv = NULL;
363     msnprintf(preamble, sizeof(preamble),
364               "curl_easy_setopt(hnd, %s, ", name);
365     for(nv = nvlist; nv->name; nv++) {
366       if((nv->value & ~ rest) == 0) {
367         /* all value flags contained in rest */
368         rest &= ~ nv->value;    /* remove bits handled here */
369         CODE3("%s(long)%s%s",
370               preamble, nv->name, rest ? " |" : ");");
371         if(!rest)
372           break;                /* handled them all */
373         /* replace with all spaces for continuation line */
374         msnprintf(preamble, sizeof(preamble), "%*s", strlen(preamble), "");
375       }
376     }
377     /* If any bits have no definition, output an explicit value.
378      * This could happen if new bits are defined and used
379      * but the NameValue list is not updated. */
380     if(rest)
381       CODE2("%s%luUL);", preamble, rest);
382   }
383 
384  nomem:
385   return ret;
386 }
387 
388 /* Generate code for a struct curl_slist. */
libcurl_generate_slist(struct curl_slist * slist,int * slistno)389 static CURLcode libcurl_generate_slist(struct curl_slist *slist, int *slistno)
390 {
391   CURLcode ret = CURLE_OK;
392   char *escaped = NULL;
393 
394   /* May need several slist variables, so invent name */
395   *slistno = ++easysrc_slist_count;
396 
397   DECL1("struct curl_slist *slist%d;", *slistno);
398   DATA1("slist%d = NULL;", *slistno);
399   CLEAN1("curl_slist_free_all(slist%d);", *slistno);
400   CLEAN1("slist%d = NULL;", *slistno);
401   for(; slist; slist = slist->next) {
402     Curl_safefree(escaped);
403     escaped = c_escape(slist->data, CURL_ZERO_TERMINATED);
404     if(!escaped)
405       return CURLE_OUT_OF_MEMORY;
406     DATA3("slist%d = curl_slist_append(slist%d, \"%s\");",
407                                        *slistno, *slistno, escaped);
408   }
409 
410  nomem:
411   Curl_safefree(escaped);
412   return ret;
413 }
414 
415 static CURLcode libcurl_generate_mime(CURL *curl,
416                                       struct GlobalConfig *config,
417                                       tool_mime *toolmime,
418                                       int *mimeno);     /* Forward. */
419 
420 /* Wrapper to generate source code for a mime part. */
libcurl_generate_mime_part(CURL * curl,struct GlobalConfig * config,tool_mime * part,int mimeno)421 static CURLcode libcurl_generate_mime_part(CURL *curl,
422                                            struct GlobalConfig *config,
423                                            tool_mime *part,
424                                            int mimeno)
425 {
426   CURLcode ret = CURLE_OK;
427   int submimeno = 0;
428   char *escaped = NULL;
429   const char *data = NULL;
430   const char *filename = part->filename;
431 
432   /* Parts are linked in reverse order. */
433   if(part->prev) {
434     ret = libcurl_generate_mime_part(curl, config, part->prev, mimeno);
435     if(ret)
436       return ret;
437   }
438 
439   /* Create the part. */
440   CODE2("part%d = curl_mime_addpart(mime%d);", mimeno, mimeno);
441 
442   switch(part->kind) {
443   case TOOLMIME_PARTS:
444     ret = libcurl_generate_mime(curl, config, part, &submimeno);
445     if(!ret) {
446       CODE2("curl_mime_subparts(part%d, mime%d);", mimeno, submimeno);
447       CODE1("mime%d = NULL;", submimeno);   /* Avoid freeing in CLEAN. */
448     }
449     break;
450 
451   case TOOLMIME_DATA:
452 #ifdef CURL_DOES_CONVERSIONS
453     /* Data will be set in ASCII, thus issue a comment with clear text. */
454     escaped = c_escape(part->data, CURL_ZERO_TERMINATED);
455     NULL_CHECK(escaped);
456     CODE1("/* \"%s\" */", escaped);
457 
458     /* Our data is always textual: convert it to ASCII. */
459     {
460       size_t size = strlen(part->data);
461       char *cp = malloc(size + 1);
462 
463       NULL_CHECK(cp);
464       memcpy(cp, part->data, size + 1);
465       ret = convert_to_network(cp, size);
466       data = cp;
467     }
468 #else
469     data = part->data;
470 #endif
471     if(!ret) {
472       Curl_safefree(escaped);
473       escaped = c_escape(data, CURL_ZERO_TERMINATED);
474       NULL_CHECK(escaped);
475       CODE2("curl_mime_data(part%d, \"%s\", CURL_ZERO_TERMINATED);",
476                             mimeno, escaped);
477     }
478     break;
479 
480   case TOOLMIME_FILE:
481   case TOOLMIME_FILEDATA:
482     escaped = c_escape(part->data, CURL_ZERO_TERMINATED);
483     NULL_CHECK(escaped);
484     CODE2("curl_mime_filedata(part%d, \"%s\");", mimeno, escaped);
485     if(part->kind == TOOLMIME_FILEDATA && !filename) {
486       CODE1("curl_mime_filename(part%d, NULL);", mimeno);
487     }
488     break;
489 
490   case TOOLMIME_STDIN:
491     if(!filename)
492       filename = "-";
493     /* FALLTHROUGH */
494   case TOOLMIME_STDINDATA:
495     /* Can only be reading stdin in the current context. */
496     CODE1("curl_mime_data_cb(part%d, -1, (curl_read_callback) fread, \\",
497           mimeno);
498     CODE0("                  (curl_seek_callback) fseek, NULL, stdin);");
499     break;
500   default:
501     /* Other cases not possible in this context. */
502     break;
503   }
504 
505   if(!ret && part->encoder) {
506     Curl_safefree(escaped);
507     escaped = c_escape(part->encoder, CURL_ZERO_TERMINATED);
508     NULL_CHECK(escaped);
509     CODE2("curl_mime_encoder(part%d, \"%s\");", mimeno, escaped);
510   }
511 
512   if(!ret && filename) {
513     Curl_safefree(escaped);
514     escaped = c_escape(filename, CURL_ZERO_TERMINATED);
515     NULL_CHECK(escaped);
516     CODE2("curl_mime_filename(part%d, \"%s\");", mimeno, escaped);
517   }
518 
519   if(!ret && part->name) {
520     Curl_safefree(escaped);
521     escaped = c_escape(part->name, CURL_ZERO_TERMINATED);
522     NULL_CHECK(escaped);
523     CODE2("curl_mime_name(part%d, \"%s\");", mimeno, escaped);
524   }
525 
526   if(!ret && part->type) {
527     Curl_safefree(escaped);
528     escaped = c_escape(part->type, CURL_ZERO_TERMINATED);
529     NULL_CHECK(escaped);
530     CODE2("curl_mime_type(part%d, \"%s\");", mimeno, escaped);
531   }
532 
533   if(!ret && part->headers) {
534     int slistno;
535 
536     ret = libcurl_generate_slist(part->headers, &slistno);
537     if(!ret) {
538       CODE2("curl_mime_headers(part%d, slist%d, 1);", mimeno, slistno);
539       CODE1("slist%d = NULL;", slistno); /* Prevent CLEANing. */
540     }
541   }
542 
543 nomem:
544 #ifdef CURL_DOES_CONVERSIONS
545   if(data)
546     free((char *) data);
547 #endif
548 
549   Curl_safefree(escaped);
550   return ret;
551 }
552 
553 /* Wrapper to generate source code for a mime structure. */
libcurl_generate_mime(CURL * curl,struct GlobalConfig * config,tool_mime * toolmime,int * mimeno)554 static CURLcode libcurl_generate_mime(CURL *curl,
555                                       struct GlobalConfig *config,
556                                       tool_mime *toolmime,
557                                       int *mimeno)
558 {
559   CURLcode ret = CURLE_OK;
560 
561   /* May need several mime variables, so invent name. */
562   *mimeno = ++easysrc_mime_count;
563   DECL1("curl_mime *mime%d;", *mimeno);
564   DATA1("mime%d = NULL;", *mimeno);
565   CODE1("mime%d = curl_mime_init(hnd);", *mimeno);
566   CLEAN1("curl_mime_free(mime%d);", *mimeno);
567   CLEAN1("mime%d = NULL;", *mimeno);
568 
569   if(toolmime->subparts) {
570     DECL1("curl_mimepart *part%d;", *mimeno);
571     ret = libcurl_generate_mime_part(curl, config,
572                                      toolmime->subparts, *mimeno);
573   }
574 
575 nomem:
576   return ret;
577 }
578 
579 /* setopt wrapper for CURLOPT_MIMEPOST */
tool_setopt_mimepost(CURL * curl,struct GlobalConfig * config,const char * name,CURLoption tag,curl_mime * mimepost)580 CURLcode tool_setopt_mimepost(CURL *curl, struct GlobalConfig *config,
581                               const char *name, CURLoption tag,
582                               curl_mime *mimepost)
583 {
584   CURLcode ret = curl_easy_setopt(curl, tag, mimepost);
585   int mimeno = 0;
586 
587   if(!ret && config->libcurl) {
588     ret = libcurl_generate_mime(curl, config,
589                                 config->current->mimeroot, &mimeno);
590 
591     if(!ret)
592       CODE2("curl_easy_setopt(hnd, %s, mime%d);", name, mimeno);
593   }
594 
595 nomem:
596   return ret;
597 }
598 
599 /* setopt wrapper for curl_slist options */
tool_setopt_slist(CURL * curl,struct GlobalConfig * config,const char * name,CURLoption tag,struct curl_slist * list)600 CURLcode tool_setopt_slist(CURL *curl, struct GlobalConfig *config,
601                            const char *name, CURLoption tag,
602                            struct curl_slist *list)
603 {
604   CURLcode ret = CURLE_OK;
605 
606   ret = curl_easy_setopt(curl, tag, list);
607 
608   if(config->libcurl && list && !ret) {
609     int i;
610 
611     ret = libcurl_generate_slist(list, &i);
612     if(!ret)
613       CODE2("curl_easy_setopt(hnd, %s, slist%d);", name, i);
614   }
615 
616  nomem:
617   return ret;
618 }
619 
620 /* generic setopt wrapper for all other options.
621  * Some type information is encoded in the tag value. */
tool_setopt(CURL * curl,bool str,struct GlobalConfig * config,const char * name,CURLoption tag,...)622 CURLcode tool_setopt(CURL *curl, bool str, struct GlobalConfig *config,
623                      const char *name, CURLoption tag, ...)
624 {
625   va_list arg;
626   char buf[256];
627   const char *value = NULL;
628   bool remark = FALSE;
629   bool skip = FALSE;
630   bool escape = FALSE;
631   char *escaped = NULL;
632   CURLcode ret = CURLE_OK;
633 
634   va_start(arg, tag);
635 
636   if(tag < CURLOPTTYPE_OBJECTPOINT) {
637     /* Value is expected to be a long */
638     long lval = va_arg(arg, long);
639     long defval = 0L;
640     const NameValue *nv = NULL;
641     for(nv = setopt_nv_CURLNONZERODEFAULTS; nv->name; nv++) {
642       if(!strcmp(name, nv->name)) {
643         defval = nv->value;
644         break; /* found it */
645       }
646     }
647 
648     msnprintf(buf, sizeof(buf), "%ldL", lval);
649     value = buf;
650     ret = curl_easy_setopt(curl, tag, lval);
651     if(lval == defval)
652       skip = TRUE;
653   }
654   else if(tag < CURLOPTTYPE_OFF_T) {
655     /* Value is some sort of object pointer */
656     void *pval = va_arg(arg, void *);
657 
658     /* function pointers are never printable */
659     if(tag >= CURLOPTTYPE_FUNCTIONPOINT) {
660       if(pval) {
661         value = "functionpointer";
662         remark = TRUE;
663       }
664       else
665         skip = TRUE;
666     }
667 
668     else if(pval && str) {
669       value = (char *)pval;
670       escape = TRUE;
671     }
672     else if(pval) {
673       value = "objectpointer";
674       remark = TRUE;
675     }
676     else
677       skip = TRUE;
678 
679     ret = curl_easy_setopt(curl, tag, pval);
680 
681   }
682   else {
683     /* Value is expected to be curl_off_t */
684     curl_off_t oval = va_arg(arg, curl_off_t);
685     msnprintf(buf, sizeof(buf),
686               "(curl_off_t)%" CURL_FORMAT_CURL_OFF_T, oval);
687     value = buf;
688     ret = curl_easy_setopt(curl, tag, oval);
689 
690     if(!oval)
691       skip = TRUE;
692   }
693 
694   va_end(arg);
695 
696   if(config->libcurl && !skip && !ret) {
697     /* we only use this for real if --libcurl was used */
698 
699     if(remark)
700       REM2("%s set to a %s", name, value);
701     else {
702       if(escape) {
703         escaped = c_escape(value, CURL_ZERO_TERMINATED);
704         NULL_CHECK(escaped);
705         CODE2("curl_easy_setopt(hnd, %s, \"%s\");", name, escaped);
706       }
707       else
708         CODE2("curl_easy_setopt(hnd, %s, %s);", name, value);
709     }
710   }
711 
712  nomem:
713   Curl_safefree(escaped);
714   return ret;
715 }
716 
717 #else /* CURL_DISABLE_LIBCURL_OPTION */
718 
719 #include "tool_cfgable.h"
720 #include "tool_setopt.h"
721 
722 #endif /* CURL_DISABLE_LIBCURL_OPTION */
723 
724 /*
725  * tool_setopt_skip() allows the curl tool code to avoid setopt options that
726  * are explicitly disabled in the build.
727  */
tool_setopt_skip(CURLoption tag)728 bool tool_setopt_skip(CURLoption tag)
729 {
730 #ifdef CURL_DISABLE_PROXY
731 #define USED_TAG
732   switch(tag) {
733   case CURLOPT_HAPROXYPROTOCOL:
734   case CURLOPT_HTTPPROXYTUNNEL:
735   case CURLOPT_NOPROXY:
736   case CURLOPT_PRE_PROXY:
737   case CURLOPT_PROXY:
738   case CURLOPT_PROXYAUTH:
739   case CURLOPT_PROXY_CAINFO:
740   case CURLOPT_PROXY_CAPATH:
741   case CURLOPT_PROXY_CRLFILE:
742   case CURLOPT_PROXYHEADER:
743   case CURLOPT_PROXY_KEYPASSWD:
744   case CURLOPT_PROXYPASSWORD:
745   case CURLOPT_PROXY_PINNEDPUBLICKEY:
746   case CURLOPT_PROXYPORT:
747   case CURLOPT_PROXY_SERVICE_NAME:
748   case CURLOPT_PROXY_SSLCERT:
749   case CURLOPT_PROXY_SSLCERTTYPE:
750   case CURLOPT_PROXY_SSL_CIPHER_LIST:
751   case CURLOPT_PROXY_SSLKEY:
752   case CURLOPT_PROXY_SSLKEYTYPE:
753   case CURLOPT_PROXY_SSL_OPTIONS:
754   case CURLOPT_PROXY_SSL_VERIFYHOST:
755   case CURLOPT_PROXY_SSL_VERIFYPEER:
756   case CURLOPT_PROXY_SSLVERSION:
757   case CURLOPT_PROXY_TLS13_CIPHERS:
758   case CURLOPT_PROXY_TLSAUTH_PASSWORD:
759   case CURLOPT_PROXY_TLSAUTH_TYPE:
760   case CURLOPT_PROXY_TLSAUTH_USERNAME:
761   case CURLOPT_PROXY_TRANSFER_MODE:
762   case CURLOPT_PROXYTYPE:
763   case CURLOPT_PROXYUSERNAME:
764   case CURLOPT_PROXYUSERPWD:
765     return TRUE;
766   default:
767     break;
768   }
769 #endif
770 #ifdef CURL_DISABLE_FTP
771 #define USED_TAG
772   switch(tag) {
773   case CURLOPT_FTPPORT:
774   case CURLOPT_FTP_ACCOUNT:
775   case CURLOPT_FTP_ALTERNATIVE_TO_USER:
776   case CURLOPT_FTP_FILEMETHOD:
777   case CURLOPT_FTP_SKIP_PASV_IP:
778   case CURLOPT_FTP_USE_EPRT:
779   case CURLOPT_FTP_USE_EPSV:
780   case CURLOPT_FTP_USE_PRET:
781   case CURLOPT_KRBLEVEL:
782     return TRUE;
783   default:
784     break;
785   }
786 #endif
787 #ifdef CURL_DISABLE_RTSP
788 #define USED_TAG
789   switch(tag) {
790   case CURLOPT_INTERLEAVEDATA:
791     return TRUE;
792   default:
793     break;
794   }
795 #endif
796 #if defined(CURL_DISABLE_HTTP) || defined(CURL_DISABLE_COOKIES)
797 #define USED_TAG
798   switch(tag) {
799   case CURLOPT_COOKIE:
800   case CURLOPT_COOKIEFILE:
801   case CURLOPT_COOKIEJAR:
802   case CURLOPT_COOKIESESSION:
803     return TRUE;
804   default:
805     break;
806   }
807 #endif
808 #if defined(CURL_DISABLE_TELNET)
809 #define USED_TAG
810   switch(tag) {
811   case CURLOPT_TELNETOPTIONS:
812     return TRUE;
813   default:
814     break;
815   }
816 #endif
817 #ifdef CURL_DISABLE_TFTP
818 #define USED_TAG
819   switch(tag) {
820   case CURLOPT_TFTP_BLKSIZE:
821   case CURLOPT_TFTP_NO_OPTIONS:
822     return TRUE;
823   default:
824     break;
825   }
826 #endif
827 #ifdef CURL_DISABLE_NETRC
828 #define USED_TAG
829   switch(tag) {
830   case CURLOPT_NETRC:
831   case CURLOPT_NETRC_FILE:
832     return TRUE;
833   default:
834     break;
835   }
836 #endif
837 
838 #ifndef USED_TAG
839   (void)tag;
840 #endif
841   return FALSE;
842 }
843