Mercurial > hgrepos > Python2 > PyMuPDF
diff mupdf-source/thirdparty/curl/docs/examples/postinmemory.c @ 2:b50eed0cc0ef upstream
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
The directory name has changed: no version number in the expanded directory now.
| author | Franz Glasner <fzglas.hg@dom66.de> |
|---|---|
| date | Mon, 15 Sep 2025 11:43:07 +0200 |
| parents | |
| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mupdf-source/thirdparty/curl/docs/examples/postinmemory.c Mon Sep 15 11:43:07 2025 +0200 @@ -0,0 +1,113 @@ +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * + * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al. + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms + * are also available at https://curl.haxx.se/docs/copyright.html. + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ***************************************************************************/ +/* <DESC> + * Make a HTTP POST with data from memory and receive response in memory. + * </DESC> + */ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <curl/curl.h> + +struct MemoryStruct { + char *memory; + size_t size; +}; + +static size_t +WriteMemoryCallback(void *contents, size_t size, size_t nmemb, void *userp) +{ + size_t realsize = size * nmemb; + struct MemoryStruct *mem = (struct MemoryStruct *)userp; + + char *ptr = realloc(mem->memory, mem->size + realsize + 1); + if(!ptr) { + /* out of memory! */ + printf("not enough memory (realloc returned NULL)\n"); + return 0; + } + + mem->memory = ptr; + memcpy(&(mem->memory[mem->size]), contents, realsize); + mem->size += realsize; + mem->memory[mem->size] = 0; + + return realsize; +} + +int main(void) +{ + CURL *curl; + CURLcode res; + struct MemoryStruct chunk; + static const char *postthis = "Field=1&Field=2&Field=3"; + + chunk.memory = malloc(1); /* will be grown as needed by realloc above */ + chunk.size = 0; /* no data at this point */ + + curl_global_init(CURL_GLOBAL_ALL); + curl = curl_easy_init(); + if(curl) { + curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.org/"); + + /* send all data to this function */ + curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback); + + /* we pass our 'chunk' struct to the callback function */ + curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&chunk); + + /* some servers don't like requests that are made without a user-agent + field, so we provide one */ + curl_easy_setopt(curl, CURLOPT_USERAGENT, "libcurl-agent/1.0"); + + curl_easy_setopt(curl, CURLOPT_POSTFIELDS, postthis); + + /* if we don't provide POSTFIELDSIZE, libcurl will strlen() by + itself */ + curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, (long)strlen(postthis)); + + /* Perform the request, res will get the return code */ + res = curl_easy_perform(curl); + /* Check for errors */ + if(res != CURLE_OK) { + fprintf(stderr, "curl_easy_perform() failed: %s\n", + curl_easy_strerror(res)); + } + else { + /* + * Now, our chunk.memory points to a memory block that is chunk.size + * bytes big and contains the remote file. + * + * Do something nice with it! + */ + printf("%s\n",chunk.memory); + } + + /* always cleanup */ + curl_easy_cleanup(curl); + + /* we're done with libcurl, so clean it up */ + curl_global_cleanup(); + } + free(chunk.memory); + return 0; +}
