[352] | 1 | /***************************************************************************
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| 2 | * _ _ ____ _
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| 3 | * Project ___| | | | _ \| |
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| 4 | * / __| | | | |_) | |
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| 5 | * | (__| |_| | _ <| |___
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| 6 | * \___|\___/|_| \_\_____|
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| 7 | *
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| 8 | * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
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| 9 | *
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| 10 | * This software is licensed as described in the file COPYING, which
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| 11 | * you should have received as part of this distribution. The terms
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| 12 | * are also available at https://curl.haxx.se/docs/copyright.html.
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| 13 | *
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| 14 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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| 15 | * copies of the Software, and permit persons to whom the Software is
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| 16 | * furnished to do so, under the terms of the COPYING file.
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| 17 | *
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| 18 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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| 19 | * KIND, either express or implied.
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| 20 | *
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| 21 | ***************************************************************************/
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| 22 | #include "tool_setup.h"
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| 23 |
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| 24 | #include "slist_wc.h"
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| 25 |
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| 26 | #ifndef CURL_DISABLE_LIBCURL_OPTION
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| 27 |
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| 28 | #define ENABLE_CURLX_PRINTF
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| 29 | /* use our own printf() functions */
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| 30 | #include "curlx.h"
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| 31 |
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| 32 | #include "tool_cfgable.h"
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| 33 | #include "tool_easysrc.h"
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| 34 | #include "tool_msgs.h"
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| 35 |
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| 36 | #include "memdebug.h" /* keep this as LAST include */
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| 37 |
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| 38 | /* global variable definitions, for easy-interface source code generation */
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| 39 |
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| 40 | struct slist_wc *easysrc_decl = NULL; /* Variable declarations */
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| 41 | struct slist_wc *easysrc_data = NULL; /* Build slists, forms etc. */
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| 42 | struct slist_wc *easysrc_code = NULL; /* Setopt calls */
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| 43 | struct slist_wc *easysrc_toohard = NULL; /* Unconvertible setopt */
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| 44 | struct slist_wc *easysrc_clean = NULL; /* Clean up allocated data */
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| 45 | int easysrc_mime_count = 0;
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| 46 | int easysrc_slist_count = 0;
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| 47 |
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| 48 | static const char *const srchead[]={
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| 49 | "/********* Sample code generated by the curl command line tool **********",
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| 50 | " * All curl_easy_setopt() options are documented at:",
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| 51 | " * https://curl.haxx.se/libcurl/c/curl_easy_setopt.html",
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| 52 | " ************************************************************************/",
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| 53 | "#include <curl/curl.h>",
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| 54 | "",
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| 55 | "int main(int argc, char *argv[])",
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| 56 | "{",
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| 57 | " CURLcode ret;",
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| 58 | " CURL *hnd;",
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| 59 | NULL
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| 60 | };
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| 61 | /* easysrc_decl declarations come here */
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| 62 | /* easysrc_data initialisations come here */
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| 63 | /* easysrc_code statements come here */
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| 64 | static const char *const srchard[]={
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| 65 | "/* Here is a list of options the curl code used that cannot get generated",
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| 66 | " as source easily. You may select to either not use them or implement",
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| 67 | " them yourself.",
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| 68 | "",
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| 69 | NULL
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| 70 | };
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| 71 | static const char *const srcend[]={
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| 72 | "",
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| 73 | " return (int)ret;",
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| 74 | "}",
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| 75 | "/**** End of sample code ****/",
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| 76 | NULL
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| 77 | };
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| 78 |
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| 79 | /* Clean up all source code if we run out of memory */
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| 80 | static void easysrc_free(void)
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| 81 | {
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| 82 | slist_wc_free_all(easysrc_decl);
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| 83 | easysrc_decl = NULL;
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| 84 | slist_wc_free_all(easysrc_data);
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| 85 | easysrc_data = NULL;
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| 86 | slist_wc_free_all(easysrc_code);
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| 87 | easysrc_code = NULL;
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| 88 | slist_wc_free_all(easysrc_toohard);
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| 89 | easysrc_toohard = NULL;
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| 90 | slist_wc_free_all(easysrc_clean);
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| 91 | easysrc_clean = NULL;
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| 92 | }
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| 93 |
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| 94 | /* Add a source line to the main code or remarks */
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| 95 | CURLcode easysrc_add(struct slist_wc **plist, const char *line)
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| 96 | {
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| 97 | CURLcode ret = CURLE_OK;
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| 98 | struct slist_wc *list = slist_wc_append(*plist, line);
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| 99 | if(!list) {
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| 100 | easysrc_free();
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| 101 | ret = CURLE_OUT_OF_MEMORY;
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| 102 | }
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| 103 | else
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| 104 | *plist = list;
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| 105 | return ret;
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| 106 | }
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| 107 |
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| 108 | CURLcode easysrc_addf(struct slist_wc **plist, const char *fmt, ...)
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| 109 | {
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| 110 | CURLcode ret;
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| 111 | char *bufp;
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| 112 | va_list ap;
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| 113 | va_start(ap, fmt);
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| 114 | bufp = curlx_mvaprintf(fmt, ap);
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| 115 | va_end(ap);
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| 116 | if(! bufp) {
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| 117 | ret = CURLE_OUT_OF_MEMORY;
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| 118 | }
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| 119 | else {
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| 120 | ret = easysrc_add(plist, bufp);
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| 121 | curl_free(bufp);
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| 122 | }
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| 123 | return ret;
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| 124 | }
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| 125 |
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| 126 | #define CHKRET(v) do {CURLcode ret = (v); if(ret) return ret;} WHILE_FALSE
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| 127 |
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| 128 | CURLcode easysrc_init(void)
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| 129 | {
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| 130 | CHKRET(easysrc_add(&easysrc_code,
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| 131 | "hnd = curl_easy_init();"));
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| 132 | return CURLE_OK;
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| 133 | }
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| 134 |
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| 135 | CURLcode easysrc_perform(void)
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| 136 | {
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| 137 | /* Note any setopt calls which we could not convert */
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| 138 | if(easysrc_toohard) {
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| 139 | int i;
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| 140 | struct curl_slist *ptr;
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| 141 | const char *c;
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| 142 | CHKRET(easysrc_add(&easysrc_code, ""));
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| 143 | /* Preamble comment */
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| 144 | for(i = 0; ((c = srchard[i]) != NULL); i++)
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| 145 | CHKRET(easysrc_add(&easysrc_code, c));
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| 146 | /* Each unconverted option */
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| 147 | if(easysrc_toohard) {
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| 148 | for(ptr = easysrc_toohard->first; ptr; ptr = ptr->next)
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| 149 | CHKRET(easysrc_add(&easysrc_code, ptr->data));
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| 150 | }
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| 151 | CHKRET(easysrc_add(&easysrc_code, ""));
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| 152 | CHKRET(easysrc_add(&easysrc_code, "*/"));
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| 153 |
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| 154 | slist_wc_free_all(easysrc_toohard);
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| 155 | easysrc_toohard = NULL;
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| 156 | }
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| 157 |
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| 158 | CHKRET(easysrc_add(&easysrc_code, ""));
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| 159 | CHKRET(easysrc_add(&easysrc_code, "ret = curl_easy_perform(hnd);"));
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| 160 | CHKRET(easysrc_add(&easysrc_code, ""));
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| 161 |
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| 162 | return CURLE_OK;
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| 163 | }
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| 164 |
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| 165 | CURLcode easysrc_cleanup(void)
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| 166 | {
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| 167 | CHKRET(easysrc_add(&easysrc_code, "curl_easy_cleanup(hnd);"));
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| 168 | CHKRET(easysrc_add(&easysrc_code, "hnd = NULL;"));
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| 169 |
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| 170 | return CURLE_OK;
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| 171 | }
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| 172 |
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| 173 | void dumpeasysrc(struct GlobalConfig *config)
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| 174 | {
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| 175 | struct curl_slist *ptr;
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| 176 | char *o = config->libcurl;
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| 177 |
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| 178 | FILE *out;
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| 179 | bool fopened = FALSE;
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| 180 | if(strcmp(o, "-")) {
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| 181 | out = fopen(o, FOPEN_WRITETEXT);
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| 182 | fopened = TRUE;
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| 183 | }
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| 184 | else
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| 185 | out = stdout;
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| 186 | if(!out)
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| 187 | warnf(config, "Failed to open %s to write libcurl code!\n", o);
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| 188 | else {
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| 189 | int i;
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| 190 | const char *c;
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| 191 |
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| 192 | for(i = 0; ((c = srchead[i]) != NULL); i++)
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| 193 | fprintf(out, "%s\n", c);
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| 194 |
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| 195 | /* Declare variables used for complex setopt values */
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| 196 | if(easysrc_decl) {
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| 197 | for(ptr = easysrc_decl->first; ptr; ptr = ptr->next)
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| 198 | fprintf(out, " %s\n", ptr->data);
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| 199 | }
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| 200 |
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| 201 | /* Set up complex values for setopt calls */
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| 202 | if(easysrc_data) {
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| 203 | fprintf(out, "\n");
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| 204 |
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| 205 | for(ptr = easysrc_data->first; ptr; ptr = ptr->next)
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| 206 | fprintf(out, " %s\n", ptr->data);
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| 207 | }
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| 208 |
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| 209 | fprintf(out, "\n");
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| 210 | if(easysrc_code) {
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| 211 | for(ptr = easysrc_code->first; ptr; ptr = ptr->next) {
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| 212 | if(ptr->data[0]) {
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| 213 | fprintf(out, " %s\n", ptr->data);
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| 214 | }
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| 215 | else {
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| 216 | fprintf(out, "\n");
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| 217 | }
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| 218 | }
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| 219 | }
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| 220 |
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| 221 | if(easysrc_clean) {
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| 222 | for(ptr = easysrc_clean->first; ptr; ptr = ptr->next)
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| 223 | fprintf(out, " %s\n", ptr->data);
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| 224 | }
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| 225 |
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| 226 | for(i = 0; ((c = srcend[i]) != NULL); i++)
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| 227 | fprintf(out, "%s\n", c);
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| 228 |
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| 229 | if(fopened)
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| 230 | fclose(out);
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| 231 | }
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| 232 |
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| 233 | easysrc_free();
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| 234 | }
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| 235 |
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| 236 | #endif /* CURL_DISABLE_LIBCURL_OPTION */
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