Annotation of embedaddon/curl/src/tool_easysrc.c, revision 1.1
1.1 ! misho 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: #include "slist_wc.h"
! 25:
! 26: #ifndef CURL_DISABLE_LIBCURL_OPTION
! 27:
! 28: #define ENABLE_CURLX_PRINTF
! 29: /* use our own printf() functions */
! 30: #include "curlx.h"
! 31:
! 32: #include "tool_cfgable.h"
! 33: #include "tool_easysrc.h"
! 34: #include "tool_msgs.h"
! 35:
! 36: #include "memdebug.h" /* keep this as LAST include */
! 37:
! 38: /* global variable definitions, for easy-interface source code generation */
! 39:
! 40: struct slist_wc *easysrc_decl = NULL; /* Variable declarations */
! 41: struct slist_wc *easysrc_data = NULL; /* Build slists, forms etc. */
! 42: struct slist_wc *easysrc_code = NULL; /* Setopt calls */
! 43: struct slist_wc *easysrc_toohard = NULL; /* Unconvertible setopt */
! 44: struct slist_wc *easysrc_clean = NULL; /* Clean up allocated data */
! 45: int easysrc_mime_count = 0;
! 46: int easysrc_slist_count = 0;
! 47:
! 48: static const char *const srchead[]={
! 49: "/********* Sample code generated by the curl command line tool **********",
! 50: " * All curl_easy_setopt() options are documented at:",
! 51: " * https://curl.haxx.se/libcurl/c/curl_easy_setopt.html",
! 52: " ************************************************************************/",
! 53: "#include <curl/curl.h>",
! 54: "",
! 55: "int main(int argc, char *argv[])",
! 56: "{",
! 57: " CURLcode ret;",
! 58: " CURL *hnd;",
! 59: NULL
! 60: };
! 61: /* easysrc_decl declarations come here */
! 62: /* easysrc_data initialisations come here */
! 63: /* easysrc_code statements come here */
! 64: static const char *const srchard[]={
! 65: "/* Here is a list of options the curl code used that cannot get generated",
! 66: " as source easily. You may select to either not use them or implement",
! 67: " them yourself.",
! 68: "",
! 69: NULL
! 70: };
! 71: static const char *const srcend[]={
! 72: "",
! 73: " return (int)ret;",
! 74: "}",
! 75: "/**** End of sample code ****/",
! 76: NULL
! 77: };
! 78:
! 79: /* Clean up all source code if we run out of memory */
! 80: static void easysrc_free(void)
! 81: {
! 82: slist_wc_free_all(easysrc_decl);
! 83: easysrc_decl = NULL;
! 84: slist_wc_free_all(easysrc_data);
! 85: easysrc_data = NULL;
! 86: slist_wc_free_all(easysrc_code);
! 87: easysrc_code = NULL;
! 88: slist_wc_free_all(easysrc_toohard);
! 89: easysrc_toohard = NULL;
! 90: slist_wc_free_all(easysrc_clean);
! 91: easysrc_clean = NULL;
! 92: }
! 93:
! 94: /* Add a source line to the main code or remarks */
! 95: CURLcode easysrc_add(struct slist_wc **plist, const char *line)
! 96: {
! 97: CURLcode ret = CURLE_OK;
! 98: struct slist_wc *list = slist_wc_append(*plist, line);
! 99: if(!list) {
! 100: easysrc_free();
! 101: ret = CURLE_OUT_OF_MEMORY;
! 102: }
! 103: else
! 104: *plist = list;
! 105: return ret;
! 106: }
! 107:
! 108: CURLcode easysrc_addf(struct slist_wc **plist, const char *fmt, ...)
! 109: {
! 110: CURLcode ret;
! 111: char *bufp;
! 112: va_list ap;
! 113: va_start(ap, fmt);
! 114: bufp = curlx_mvaprintf(fmt, ap);
! 115: va_end(ap);
! 116: if(! bufp) {
! 117: ret = CURLE_OUT_OF_MEMORY;
! 118: }
! 119: else {
! 120: ret = easysrc_add(plist, bufp);
! 121: curl_free(bufp);
! 122: }
! 123: return ret;
! 124: }
! 125:
! 126: #define CHKRET(v) do {CURLcode ret = (v); if(ret) return ret;} while(0)
! 127:
! 128: CURLcode easysrc_init(void)
! 129: {
! 130: CHKRET(easysrc_add(&easysrc_code,
! 131: "hnd = curl_easy_init();"));
! 132: return CURLE_OK;
! 133: }
! 134:
! 135: CURLcode easysrc_perform(void)
! 136: {
! 137: /* Note any setopt calls which we could not convert */
! 138: if(easysrc_toohard) {
! 139: int i;
! 140: struct curl_slist *ptr;
! 141: const char *c;
! 142: CHKRET(easysrc_add(&easysrc_code, ""));
! 143: /* Preamble comment */
! 144: for(i = 0; ((c = srchard[i]) != NULL); i++)
! 145: CHKRET(easysrc_add(&easysrc_code, c));
! 146: /* Each unconverted option */
! 147: if(easysrc_toohard) {
! 148: for(ptr = easysrc_toohard->first; ptr; ptr = ptr->next)
! 149: CHKRET(easysrc_add(&easysrc_code, ptr->data));
! 150: }
! 151: CHKRET(easysrc_add(&easysrc_code, ""));
! 152: CHKRET(easysrc_add(&easysrc_code, "*/"));
! 153:
! 154: slist_wc_free_all(easysrc_toohard);
! 155: easysrc_toohard = NULL;
! 156: }
! 157:
! 158: CHKRET(easysrc_add(&easysrc_code, ""));
! 159: CHKRET(easysrc_add(&easysrc_code, "ret = curl_easy_perform(hnd);"));
! 160: CHKRET(easysrc_add(&easysrc_code, ""));
! 161:
! 162: return CURLE_OK;
! 163: }
! 164:
! 165: CURLcode easysrc_cleanup(void)
! 166: {
! 167: CHKRET(easysrc_add(&easysrc_code, "curl_easy_cleanup(hnd);"));
! 168: CHKRET(easysrc_add(&easysrc_code, "hnd = NULL;"));
! 169:
! 170: return CURLE_OK;
! 171: }
! 172:
! 173: void dumpeasysrc(struct GlobalConfig *config)
! 174: {
! 175: struct curl_slist *ptr;
! 176: char *o = config->libcurl;
! 177:
! 178: FILE *out;
! 179: bool fopened = FALSE;
! 180: if(strcmp(o, "-")) {
! 181: out = fopen(o, FOPEN_WRITETEXT);
! 182: fopened = TRUE;
! 183: }
! 184: else
! 185: out = stdout;
! 186: if(!out)
! 187: warnf(config, "Failed to open %s to write libcurl code!\n", o);
! 188: else {
! 189: int i;
! 190: const char *c;
! 191:
! 192: for(i = 0; ((c = srchead[i]) != NULL); i++)
! 193: fprintf(out, "%s\n", c);
! 194:
! 195: /* Declare variables used for complex setopt values */
! 196: if(easysrc_decl) {
! 197: for(ptr = easysrc_decl->first; ptr; ptr = ptr->next)
! 198: fprintf(out, " %s\n", ptr->data);
! 199: }
! 200:
! 201: /* Set up complex values for setopt calls */
! 202: if(easysrc_data) {
! 203: fprintf(out, "\n");
! 204:
! 205: for(ptr = easysrc_data->first; ptr; ptr = ptr->next)
! 206: fprintf(out, " %s\n", ptr->data);
! 207: }
! 208:
! 209: fprintf(out, "\n");
! 210: if(easysrc_code) {
! 211: for(ptr = easysrc_code->first; ptr; ptr = ptr->next) {
! 212: if(ptr->data[0]) {
! 213: fprintf(out, " %s\n", ptr->data);
! 214: }
! 215: else {
! 216: fprintf(out, "\n");
! 217: }
! 218: }
! 219: }
! 220:
! 221: if(easysrc_clean) {
! 222: for(ptr = easysrc_clean->first; ptr; ptr = ptr->next)
! 223: fprintf(out, " %s\n", ptr->data);
! 224: }
! 225:
! 226: for(i = 0; ((c = srcend[i]) != NULL); i++)
! 227: fprintf(out, "%s\n", c);
! 228:
! 229: if(fopened)
! 230: fclose(out);
! 231: }
! 232:
! 233: easysrc_free();
! 234: }
! 235:
! 236: #endif /* CURL_DISABLE_LIBCURL_OPTION */
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