376 lines
9.5 KiB
C
376 lines
9.5 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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/* <DESC>
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* Multiplexed HTTP/2 uploads over a single connection
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* </DESC>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#ifdef UNDER_CE
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#define strerror(e) "?"
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#else
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#include <errno.h>
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#endif
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/* somewhat Unix-specific */
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#ifndef _MSC_VER
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#include <sys/time.h>
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#include <unistd.h>
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#endif
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#ifdef _WIN32
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#undef stat
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#define stat _stat
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#undef fstat
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#define fstat _fstat
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#define fileno _fileno
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#endif
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#if defined(_MSC_VER) && (_MSC_VER < 1900)
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#define snprintf _snprintf
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#endif
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/* curl stuff */
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#include <curl/curl.h>
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#ifndef CURLPIPE_MULTIPLEX
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/* This little trick makes sure that we do not enable pipelining for libcurls
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old enough to not have this symbol. It is _not_ defined to zero in a recent
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libcurl header. */
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#define CURLPIPE_MULTIPLEX 0L
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#endif
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#ifdef _MSC_VER
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#define gettimeofday(a, b) my_gettimeofday((a), (b))
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static int my_gettimeofday(struct timeval *tp, void *tzp)
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{
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(void)tzp;
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if(tp) {
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/* Offset between 1601-01-01 and 1970-01-01 in 100 nanosec units */
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#define WIN32_FT_OFFSET (116444736000000000)
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union {
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CURL_TYPEOF_CURL_OFF_T ns100; /* time since 1 Jan 1601 in 100ns units */
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FILETIME ft;
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} _now;
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GetSystemTimeAsFileTime(&_now.ft);
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tp->tv_usec = (long)((_now.ns100 / 10) % 1000000);
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tp->tv_sec = (long)((_now.ns100 - WIN32_FT_OFFSET) / 10000000);
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}
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return 0;
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}
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#endif
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struct input {
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FILE *in;
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FILE *out;
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size_t bytes_read; /* count up */
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CURL *curl;
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int num;
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};
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static void dump(const char *text, int num, unsigned char *ptr,
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size_t size, char nohex)
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{
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size_t i;
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size_t c;
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unsigned int width = 0x10;
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if(nohex)
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/* without the hex output, we can fit more on screen */
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width = 0x40;
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fprintf(stderr, "%d %s, %lu bytes (0x%lx)\n",
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num, text, (unsigned long)size, (unsigned long)size);
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for(i = 0; i < size; i += width) {
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fprintf(stderr, "%4.4lx: ", (unsigned long)i);
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if(!nohex) {
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/* hex not disabled, show it */
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for(c = 0; c < width; c++)
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if(i + c < size)
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fprintf(stderr, "%02x ", ptr[i + c]);
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else
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fputs(" ", stderr);
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}
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for(c = 0; (c < width) && (i + c < size); c++) {
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/* check for 0D0A; if found, skip past and start a new line of output */
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if(nohex && (i + c + 1 < size) && ptr[i + c] == 0x0D &&
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ptr[i + c + 1] == 0x0A) {
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i += (c + 2 - width);
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break;
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}
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fprintf(stderr, "%c",
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(ptr[i + c] >= 0x20) && (ptr[i + c] < 0x80) ? ptr[i + c] : '.');
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/* check again for 0D0A, to avoid an extra \n if it's at width */
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if(nohex && (i + c + 2 < size) && ptr[i + c + 1] == 0x0D &&
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ptr[i + c + 2] == 0x0A) {
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i += (c + 3 - width);
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break;
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}
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}
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fputc('\n', stderr); /* newline */
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}
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}
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static int my_trace(CURL *curl, curl_infotype type,
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char *data, size_t size, void *userp)
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{
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char timebuf[60];
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const char *text;
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struct input *i = (struct input *)userp;
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int num = i->num;
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static time_t epoch_offset;
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static int known_offset;
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struct timeval tv;
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time_t secs;
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struct tm *now;
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(void)curl;
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gettimeofday(&tv, NULL);
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if(!known_offset) {
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epoch_offset = time(NULL) - tv.tv_sec;
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known_offset = 1;
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}
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secs = epoch_offset + tv.tv_sec;
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now = localtime(&secs); /* not thread safe but we do not care */
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snprintf(timebuf, sizeof(timebuf), "%02d:%02d:%02d.%06ld",
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now->tm_hour, now->tm_min, now->tm_sec, (long)tv.tv_usec);
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switch(type) {
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case CURLINFO_TEXT:
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fprintf(stderr, "%s [%d] Info: %s", timebuf, num, data);
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return 0;
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case CURLINFO_HEADER_OUT:
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text = "=> Send header";
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break;
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case CURLINFO_DATA_OUT:
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text = "=> Send data";
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break;
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case CURLINFO_SSL_DATA_OUT:
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text = "=> Send SSL data";
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break;
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case CURLINFO_HEADER_IN:
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text = "<= Recv header";
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break;
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case CURLINFO_DATA_IN:
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text = "<= Recv data";
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break;
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case CURLINFO_SSL_DATA_IN:
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text = "<= Recv SSL data";
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break;
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default: /* in case a new one is introduced to shock us */
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return 0;
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}
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dump(text, num, (unsigned char *)data, size, 1);
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return 0;
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}
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static size_t read_cb(char *ptr, size_t size, size_t nmemb, void *userp)
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{
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struct input *i = userp;
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size_t retcode = fread(ptr, size, nmemb, i->in);
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i->bytes_read += retcode;
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return retcode;
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}
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static int setup(struct input *t, int num, const char *upload)
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{
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char url[256];
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char filename[128];
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struct stat file_info;
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curl_off_t uploadsize;
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CURL *curl;
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curl = t->curl = NULL;
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t->num = num;
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snprintf(filename, sizeof(filename), "dl-%d", num);
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t->out = fopen(filename, "wb");
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if(!t->out) {
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fprintf(stderr, "error: could not open file %s for writing: %s\n",
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upload, strerror(errno));
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return 1;
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}
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snprintf(url, sizeof(url), "https://localhost:8443/upload-%d", num);
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t->in = fopen(upload, "rb");
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if(!t->in) {
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fprintf(stderr, "error: could not open file %s for reading: %s\n",
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upload, strerror(errno));
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fclose(t->out);
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t->out = NULL;
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return 1;
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}
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#ifdef UNDER_CE
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/* !checksrc! disable BANNEDFUNC 1 */
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if(stat(upload, &file_info) != 0) {
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#else
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if(fstat(fileno(t->in), &file_info) != 0) {
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#endif
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fprintf(stderr, "error: could not stat file %s: %s\n",
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upload, strerror(errno));
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fclose(t->out);
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t->out = NULL;
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return 1;
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}
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uploadsize = file_info.st_size;
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curl = t->curl = curl_easy_init();
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if(curl) {
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/* write to this file */
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curl_easy_setopt(curl, CURLOPT_WRITEDATA, t->out);
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/* we want to use our own read function */
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curl_easy_setopt(curl, CURLOPT_READFUNCTION, read_cb);
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/* read from this file */
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curl_easy_setopt(curl, CURLOPT_READDATA, t);
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/* provide the size of the upload */
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curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE, uploadsize);
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/* send in the URL to store the upload as */
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curl_easy_setopt(curl, CURLOPT_URL, url);
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/* upload please */
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curl_easy_setopt(curl, CURLOPT_UPLOAD, 1L);
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/* please be verbose */
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curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
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curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, my_trace);
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curl_easy_setopt(curl, CURLOPT_DEBUGDATA, t);
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/* HTTP/2 please */
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curl_easy_setopt(curl, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2_0);
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/* we use a self-signed test server, skip verification during debugging */
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curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
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curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
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#if (CURLPIPE_MULTIPLEX > 0)
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/* wait for pipe connection to confirm */
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curl_easy_setopt(curl, CURLOPT_PIPEWAIT, 1L);
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#endif
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}
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return 0;
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}
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/*
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* Upload all files over HTTP/2, using the same physical connection!
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*/
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int main(int argc, char **argv)
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{
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CURLcode res;
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struct input *trans;
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CURLM *multi = NULL;
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int i;
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const char *filename = "index.html";
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int still_running = 0; /* keep number of running handles */
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int num_transfers;
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if(argc > 1) {
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/* if given a number, do that many transfers */
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num_transfers = atoi(argv[1]);
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if((num_transfers < 1) || (num_transfers > 1000))
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num_transfers = 3; /* a suitable low default */
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if(argc > 2)
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/* if given a file name, upload this! */
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filename = argv[2];
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}
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else
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num_transfers = 3; /* a suitable low default */
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res = curl_global_init(CURL_GLOBAL_ALL);
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if(res)
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return (int)res;
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trans = calloc(num_transfers, sizeof(*trans));
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if(!trans) {
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fprintf(stderr, "error allocating transfer structs\n");
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goto error;
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}
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/* init a multi stack */
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multi = curl_multi_init();
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if(!multi)
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goto error;
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for(i = 0; i < num_transfers; i++) {
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if(setup(&trans[i], i, filename)) {
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goto error;
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}
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/* add the individual transfer */
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curl_multi_add_handle(multi, trans[i].curl);
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}
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curl_multi_setopt(multi, CURLMOPT_PIPELINING, CURLPIPE_MULTIPLEX);
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/* We do HTTP/2 so let's stick to one connection per host */
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curl_multi_setopt(multi, CURLMOPT_MAX_HOST_CONNECTIONS, 1L);
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do {
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CURLMcode mc = curl_multi_perform(multi, &still_running);
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if(still_running)
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/* wait for activity, timeout or "nothing" */
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mc = curl_multi_poll(multi, NULL, 0, 1000, NULL);
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if(mc)
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break;
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} while(still_running);
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error:
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if(multi) {
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for(i = 0; i < num_transfers; i++) {
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curl_multi_remove_handle(multi, trans[i].curl);
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curl_easy_cleanup(trans[i].curl);
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if(trans[i].in)
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fclose(trans[i].in);
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if(trans[i].out)
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fclose(trans[i].out);
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}
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curl_multi_cleanup(multi);
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}
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free(trans);
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curl_global_cleanup();
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return 0;
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}
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