/src/CMake/Utilities/cmcurl/lib/curl_trc.c

Source
/***************************************************************************
 *                                  _   _ ____  _
 *  Project                     ___| | | |  _ \| |
 *                             / __| | | | |_) | |
 *                            | (__| |_| |  _ <| |___
 *                             \___|\___/|_| \_\_____|
 *
 * Copyright (C) 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.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.
 *
 * SPDX-License-Identifier: curl
 *
 ***************************************************************************/
#include "curl_setup.h"

#include "curl_trc.h"
#include "urldata.h"
#include "cfilters.h"
#include "multiif.h"

#include "cf-socket.h"
#include "connect.h"
#include "http2.h"
#include "http_proxy.h"
#include "cf-h1-proxy.h"
#include "cf-h2-proxy.h"
#include "cf-haproxy.h"
#include "cf-https-connect.h"
#include "cf-ip-happy.h"
#include "progress.h"
#include "socks.h"
#include "curlx/strparse.h"
#include "vtls/vtls.h"
#include "vquic/vquic.h"
#include "curlx/strcopy.h"

static void trc_write(struct Curl_easy *data, curl_infotype type,
                      const char *ptr, size_t size)
{
  if(data->set.verbose) {
    if(data->set.fdebug) {
      bool inCallback = Curl_is_in_callback(data);
      Curl_set_in_callback(data, TRUE);
      (void)(*data->set.fdebug)(data, type, CURL_UNCONST(ptr), size,
                                data->set.debugdata);
      Curl_set_in_callback(data, inCallback);
    }
    else {
      static const char s_infotype[CURLINFO_END][3] = {
        "* ", "< ", "> ", "{ ", "} ", "{ ", "} " };
      switch(type) {
      case CURLINFO_TEXT:
      case CURLINFO_HEADER_OUT:
      case CURLINFO_HEADER_IN:
        fwrite(s_infotype[type], 2, 1, data->set.err);
        fwrite(ptr, size, 1, data->set.err);
        break;
      default: /* nada */
        break;
      }
    }
  }
}

/* max length we trace before ending in '...' */
#define TRC_LINE_MAX 2048

#define CURL_TRC_FMT_IDSC   "[x-%" CURL_FORMAT_CURL_OFF_T "] "
#define CURL_TRC_FMT_IDSD   "[%" CURL_FORMAT_CURL_OFF_T "-x] "
#define CURL_TRC_FMT_IDSDC  "[%" CURL_FORMAT_CURL_OFF_T "-%" \
                            CURL_FORMAT_CURL_OFF_T "] "

static struct curl_trc_feat Curl_trc_feat_ids = {
  "LIB-IDS",
  CURL_LOG_LVL_NONE,
};
#define CURL_TRC_IDS(data) \
  (Curl_trc_is_verbose(data) && \
  Curl_trc_feat_ids.log_level >= CURL_LOG_LVL_INFO)

static size_t trc_print_ids(struct Curl_easy *data, char *buf, size_t maxlen)
{
  curl_off_t cid = data->conn ?
                   data->conn->connection_id : data->state.recent_conn_id;
  if(data->id >= 0) {
    if(cid >= 0)
      return curl_msnprintf(buf, maxlen, CURL_TRC_FMT_IDSDC, data->id, cid);
    else
      return curl_msnprintf(buf, maxlen, CURL_TRC_FMT_IDSD, data->id);
  }
  else if(cid >= 0)
    return curl_msnprintf(buf, maxlen, CURL_TRC_FMT_IDSC, cid);
  else {
    return curl_msnprintf(buf, maxlen, "[x-x] ");
  }
}

static size_t trc_end_buf(char *buf, size_t len, size_t maxlen, bool addnl)
{
  /* make sure we end the trace line in `buf` properly. It needs
   * to end with a terminating '\0' or '\n\0' */
  if(len >= (maxlen - (addnl ? 2 : 1))) {
    len = maxlen - 5;
    buf[len++] = '.';
    buf[len++] = '.';
    buf[len++] = '.';
    buf[len++] = '\n';
  }
  else if(addnl)
    buf[len++] = '\n';
  buf[len] = '\0';
  return len;
}

void Curl_debug(struct Curl_easy *data, curl_infotype type,
                const char *ptr, size_t size)
{
  if(data->set.verbose) {
    static const char s_infotype[CURLINFO_END][3] = {
      "* ", "< ", "> ", "{ ", "} ", "{ ", "} " };
    char buf[TRC_LINE_MAX];
    size_t len;
    if(data->set.fdebug) {
      bool inCallback = Curl_is_in_callback(data);

      if(CURL_TRC_IDS(data) && (size < TRC_LINE_MAX)) {
        len = trc_print_ids(data, buf, TRC_LINE_MAX);
        len += curl_msnprintf(buf + len, TRC_LINE_MAX - len, "%.*s",
                              (int)size, ptr);
        len = trc_end_buf(buf, len, TRC_LINE_MAX, FALSE);
        Curl_set_in_callback(data, TRUE);
        (void)(*data->set.fdebug)(data, type, buf, len, data->set.debugdata);
        Curl_set_in_callback(data, inCallback);
      }
      else {
        Curl_set_in_callback(data, TRUE);
        (void)(*data->set.fdebug)(data, type, CURL_UNCONST(ptr),
                                  size, data->set.debugdata);
        Curl_set_in_callback(data, inCallback);
      }
    }
    else {
      switch(type) {
      case CURLINFO_TEXT:
      case CURLINFO_HEADER_OUT:
      case CURLINFO_HEADER_IN:
#ifndef CURL_DISABLE_VERBOSE_STRINGS
        if(CURL_TRC_IDS(data)) {
          len = trc_print_ids(data, buf, TRC_LINE_MAX);
          fwrite(buf, len, 1, data->set.err);
        }
#endif
        fwrite(s_infotype[type], 2, 1, data->set.err);
        fwrite(ptr, size, 1, data->set.err);
        break;
      default: /* nada */
        break;
      }
    }
  }
}

/* Curl_failf() is for messages stating why we failed.
 * The message SHALL NOT include any LF or CR.
 */
void Curl_failf(struct Curl_easy *data, const char *fmt, ...)
{
  DEBUGASSERT(!strchr(fmt, '\n'));
  if(data->set.verbose || data->set.errorbuffer) {
    va_list ap;
    size_t len;
    char error[CURL_ERROR_SIZE + 2];
    va_start(ap, fmt);
    len = curl_mvsnprintf(error, CURL_ERROR_SIZE, fmt, ap);

    if(data->set.errorbuffer && !data->state.errorbuf) {
      curlx_strcopy(data->set.errorbuffer, CURL_ERROR_SIZE, error, len);
      data->state.errorbuf = TRUE; /* wrote error string */
    }
    error[len++] = '\n';
    error[len] = '\0';
    trc_write(data, CURLINFO_TEXT, error, len);
    va_end(ap);
  }
}

void Curl_reset_fail(struct Curl_easy *data)
{
  if(data->set.errorbuffer)
    data->set.errorbuffer[0] = 0;
  data->state.errorbuf = FALSE;
}

#ifdef CURLVERBOSE
struct curl_trc_feat Curl_trc_feat_multi = {
  "MULTI",
  CURL_LOG_LVL_NONE,
};
struct curl_trc_feat Curl_trc_feat_read = {
  "READ",
  CURL_LOG_LVL_NONE,
};
struct curl_trc_feat Curl_trc_feat_write = {
  "WRITE",
  CURL_LOG_LVL_NONE,
};
struct curl_trc_feat Curl_trc_feat_dns = {
  "DNS",
  CURL_LOG_LVL_NONE,
};
struct curl_trc_feat Curl_trc_feat_timer = {
  "TIMER",
  CURL_LOG_LVL_NONE,
};
#endif

#ifndef CURL_DISABLE_VERBOSE_STRINGS

static void trc_infof(struct Curl_easy *data,
                      struct curl_trc_feat *feat,
                      const char *opt_id, int opt_id_idx,
                      const char * const fmt, va_list ap) CURL_PRINTF(5, 0);

static void trc_infof(struct Curl_easy *data,
                      struct curl_trc_feat *feat,
                      const char *opt_id, int opt_id_idx,
                      const char * const fmt, va_list ap)
{
  size_t len = 0;
  char buf[TRC_LINE_MAX];

  if(CURL_TRC_IDS(data))
    len += trc_print_ids(data, buf + len, TRC_LINE_MAX - len);
  if(feat)
    len += curl_msnprintf(buf + len, TRC_LINE_MAX - len, "[%s] ", feat->name);
  if(opt_id) {
    if(opt_id_idx > 0)
      len += curl_msnprintf(buf + len, TRC_LINE_MAX - len, "[%s-%d] ",
                            opt_id, opt_id_idx);
    else
      len += curl_msnprintf(buf + len, TRC_LINE_MAX - len, "[%s] ", opt_id);
  }
  len += curl_mvsnprintf(buf + len, TRC_LINE_MAX - len, fmt, ap);
  len = trc_end_buf(buf, len, TRC_LINE_MAX, TRUE);
  trc_write(data, CURLINFO_TEXT, buf, len);
}

void Curl_infof(struct Curl_easy *data, const char *fmt, ...)
{
  DEBUGASSERT(!strchr(fmt, '\n'));
  if(Curl_trc_is_verbose(data)) {
    va_list ap;
    va_start(ap, fmt);
    trc_infof(data, data->state.feat, NULL, 0, fmt, ap);
    va_end(ap);
  }
}

void Curl_trc_cf_infof(struct Curl_easy *data, const struct Curl_cfilter *cf,
                       const char *fmt, ...)
{
  DEBUGASSERT(cf);
  if(Curl_trc_cf_is_verbose(cf, data)) {
    va_list ap;
    va_start(ap, fmt);
    trc_infof(data, data->state.feat, cf->cft->name, cf->sockindex, fmt, ap);
    va_end(ap);
  }
}

static const char * const Curl_trc_timer_names[] = {
  "100_TIMEOUT",
  "ASYNC_NAME",
  "CONNECTTIMEOUT",
  "DNS_PER_NAME",
  "DNS_PER_NAME2",
  "HAPPY_EYEBALLS_DNS",
  "HAPPY_EYEBALLS",
  "MULTI_PENDING",
  "SPEEDCHECK",
  "TIMEOUT",
  "TOOFAST",
  "QUIC",
  "FTP_ACCEPT",
  "ALPN_EYEBALLS",
  "SHUTDOWN",
};

static const char *trc_timer_name(int tid)
{
  if((tid >= 0) && ((size_t)tid < CURL_ARRAYSIZE(Curl_trc_timer_names)))
    return Curl_trc_timer_names[(size_t)tid];
  return "UNKNOWN?";
}

void Curl_trc_timer(struct Curl_easy *data, int tid, const char *fmt, ...)
{
  DEBUGASSERT(!strchr(fmt, '\n'));
  if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_timer)) {
    const char *tname = trc_timer_name(tid);
    va_list ap;
    va_start(ap, fmt);
    trc_infof(data, &Curl_trc_feat_timer, tname, 0, fmt, ap);
    va_end(ap);
  }
}

void Curl_trc_easy_timers(struct Curl_easy *data)
{
  if(CURL_TRC_TIMER_is_verbose(data)) {
    struct Curl_llist_node *e = Curl_llist_head(&data->state.timeoutlist);
    if(e) {
      const struct curltime *pnow = Curl_pgrs_now(data);
      while(e) {
        struct time_node *n = Curl_node_elem(e);
        e = Curl_node_next(e);
        CURL_TRC_TIMER(data, n->eid, "expires in %" FMT_TIMEDIFF_T "ns",
                       curlx_ptimediff_us(&n->time, pnow));
      }
    }
  }
}

static const char * const Curl_trc_mstate_names[] = {
  "INIT",
  "PENDING",
  "SETUP",
  "CONNECT",
  "RESOLVING",
  "CONNECTING",
  "PROTOCONNECT",
  "PROTOCONNECTING",
  "DO",
  "DOING",
  "DOING_MORE",
  "DID",
  "PERFORMING",
  "RATELIMITING",
  "DONE",
  "COMPLETED",
  "MSGSENT",
};

const char *Curl_trc_mstate_name(int state)
{
  if((state >= 0) && ((size_t)state < CURL_ARRAYSIZE(Curl_trc_mstate_names)))
    return Curl_trc_mstate_names[(size_t)state];
  return "?";
}

void Curl_trc_multi(struct Curl_easy *data, const char *fmt, ...)
{
  DEBUGASSERT(!strchr(fmt, '\n'));
  if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_multi)) {
    const char *sname = (data->id >= 0) ?
                        Curl_trc_mstate_name(data->mstate) : NULL;
    va_list ap;
    va_start(ap, fmt);
    trc_infof(data, &Curl_trc_feat_multi, sname, 0, fmt, ap);
    va_end(ap);
  }
}

void Curl_trc_read(struct Curl_easy *data, const char *fmt, ...)
{
  DEBUGASSERT(!strchr(fmt, '\n'));
  if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_read)) {
    va_list ap;
    va_start(ap, fmt);
    trc_infof(data, &Curl_trc_feat_read, NULL, 0, fmt, ap);
    va_end(ap);
  }
}

void Curl_trc_write(struct Curl_easy *data, const char *fmt, ...)
{
  DEBUGASSERT(!strchr(fmt, '\n'));
  if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_write)) {
    va_list ap;
    va_start(ap, fmt);
    trc_infof(data, &Curl_trc_feat_write, NULL, 0, fmt, ap);
    va_end(ap);
  }
}

void Curl_trc_dns(struct Curl_easy *data, const char *fmt, ...)
{
  DEBUGASSERT(!strchr(fmt, '\n'));
  if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_dns)) {
    va_list ap;
    va_start(ap, fmt);
    trc_infof(data, &Curl_trc_feat_dns, NULL, 0, fmt, ap);
    va_end(ap);
  }
}

#ifndef CURL_DISABLE_FTP
struct curl_trc_feat Curl_trc_feat_ftp = {
  "FTP",
  CURL_LOG_LVL_NONE,
};

void Curl_trc_ftp(struct Curl_easy *data, const char *fmt, ...)
{
  DEBUGASSERT(!strchr(fmt, '\n'));
  if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_ftp)) {
    va_list ap;
    va_start(ap, fmt);
    trc_infof(data, &Curl_trc_feat_ftp, NULL, 0, fmt, ap);
    va_end(ap);
  }
}
#endif /* !CURL_DISABLE_FTP */

#ifndef CURL_DISABLE_SMTP
struct curl_trc_feat Curl_trc_feat_smtp = {
  "SMTP",
  CURL_LOG_LVL_NONE,
};

void Curl_trc_smtp(struct Curl_easy *data, const char *fmt, ...)
{
  DEBUGASSERT(!strchr(fmt, '\n'));
  if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_smtp)) {
    va_list ap;
    va_start(ap, fmt);
    trc_infof(data, &Curl_trc_feat_smtp, NULL, 0, fmt, ap);
    va_end(ap);
  }
}
#endif /* !CURL_DISABLE_SMTP */

#ifdef USE_SSL
struct curl_trc_feat Curl_trc_feat_ssls = {
  "SSLS",
  CURL_LOG_LVL_NONE,
};

void Curl_trc_ssls(struct Curl_easy *data, const char *fmt, ...)
{
  DEBUGASSERT(!strchr(fmt, '\n'));
  if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_ssls)) {
    va_list ap;
    va_start(ap, fmt);
    trc_infof(data, &Curl_trc_feat_ssls, NULL, 0, fmt, ap);
    va_end(ap);
  }
}
#endif /* USE_SSL */

#ifdef USE_SSH
struct curl_trc_feat Curl_trc_feat_ssh = {
  "SSH",
  CURL_LOG_LVL_NONE,
};

void Curl_trc_ssh(struct Curl_easy *data, const char *fmt, ...)
{
  DEBUGASSERT(!strchr(fmt, '\n'));
  if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_ssh)) {
    va_list ap;
    va_start(ap, fmt);
    trc_infof(data, &Curl_trc_feat_ssh, NULL, 0, fmt, ap);
    va_end(ap);
  }
}
#endif /* USE_SSH */

#if !defined(CURL_DISABLE_WEBSOCKETS) && !defined(CURL_DISABLE_HTTP)
struct curl_trc_feat Curl_trc_feat_ws = {
  "WS",
  CURL_LOG_LVL_NONE,
};

void Curl_trc_ws(struct Curl_easy *data, const char *fmt, ...)
{
  DEBUGASSERT(!strchr(fmt, '\n'));
  if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_ws)) {
    va_list ap;
    va_start(ap, fmt);
    trc_infof(data, &Curl_trc_feat_ws, NULL, 0, fmt, ap);
    va_end(ap);
  }
}
#endif /* !CURL_DISABLE_WEBSOCKETS && !CURL_DISABLE_HTTP */

#define TRC_CT_NONE        0
#define TRC_CT_PROTOCOL    (1 << 0)
#define TRC_CT_NETWORK     (1 << 1)
#define TRC_CT_PROXY       (1 << 2)
#define TRC_CT_INTERNALS   (1 << 3)

struct trc_feat_def {
  struct curl_trc_feat *feat;
  unsigned int category;
};

static struct trc_feat_def trc_feats[] = {
  { &Curl_trc_feat_ids,       TRC_CT_INTERNALS },
  { &Curl_trc_feat_multi,     TRC_CT_NETWORK },
  { &Curl_trc_feat_read,      TRC_CT_NONE },
  { &Curl_trc_feat_write,     TRC_CT_NONE },
  { &Curl_trc_feat_dns,       TRC_CT_NETWORK },
  { &Curl_trc_feat_timer,     TRC_CT_NETWORK },
#ifndef CURL_DISABLE_FTP
  { &Curl_trc_feat_ftp,       TRC_CT_PROTOCOL },
#endif
#ifndef CURL_DISABLE_SMTP
  { &Curl_trc_feat_smtp,      TRC_CT_PROTOCOL },
#endif
#ifdef USE_SSL
  { &Curl_trc_feat_ssls,      TRC_CT_NETWORK },
#endif
#ifdef USE_SSH
  { &Curl_trc_feat_ssh,      TRC_CT_PROTOCOL },
#endif
#if !defined(CURL_DISABLE_WEBSOCKETS) && !defined(CURL_DISABLE_HTTP)
  { &Curl_trc_feat_ws,        TRC_CT_PROTOCOL },
#endif
};

struct trc_cft_def {
  struct Curl_cftype *cft;
  unsigned int category;
};

static struct trc_cft_def trc_cfts[] = {
  { &Curl_cft_tcp,            TRC_CT_NETWORK },
  { &Curl_cft_udp,            TRC_CT_NETWORK },
  { &Curl_cft_unix,           TRC_CT_NETWORK },
  { &Curl_cft_tcp_accept,     TRC_CT_NETWORK },
  { &Curl_cft_ip_happy,       TRC_CT_NETWORK },
  { &Curl_cft_setup,          TRC_CT_PROTOCOL },
#if !defined(CURL_DISABLE_HTTP) && defined(USE_NGHTTP2)
  { &Curl_cft_nghttp2,        TRC_CT_PROTOCOL },
#endif
#ifdef USE_SSL
  { &Curl_cft_ssl,            TRC_CT_NETWORK },
#ifndef CURL_DISABLE_PROXY
  { &Curl_cft_ssl_proxy,      TRC_CT_PROXY },
#endif
#endif
#ifndef CURL_DISABLE_PROXY
#ifndef CURL_DISABLE_HTTP
  { &Curl_cft_h1_proxy,       TRC_CT_PROXY },
#ifdef USE_NGHTTP2
  { &Curl_cft_h2_proxy,       TRC_CT_PROXY },
#endif
  { &Curl_cft_http_proxy,     TRC_CT_PROXY },
#endif /* !CURL_DISABLE_HTTP */
  { &Curl_cft_haproxy,        TRC_CT_PROXY },
  { &Curl_cft_socks_proxy,    TRC_CT_PROXY },
#endif /* !CURL_DISABLE_PROXY */
#if !defined(CURL_DISABLE_HTTP) && defined(USE_HTTP3)
  { &Curl_cft_http3,          TRC_CT_PROTOCOL },
#endif
#ifndef CURL_DISABLE_HTTP
  { &Curl_cft_http_connect,   TRC_CT_PROTOCOL },
#endif
};

static void trc_apply_level_by_name(struct Curl_str *token, int lvl)
{
  size_t i;

  for(i = 0; i < CURL_ARRAYSIZE(trc_cfts); ++i) {
    if(curlx_str_casecompare(token, trc_cfts[i].cft->name)) {
      trc_cfts[i].cft->log_level = lvl;
      break;
    }
  }
  for(i = 0; i < CURL_ARRAYSIZE(trc_feats); ++i) {
    if(curlx_str_casecompare(token, trc_feats[i].feat->name)) {
      trc_feats[i].feat->log_level = lvl;
      break;
    }
  }
}

static void trc_apply_level_by_category(unsigned int category, int lvl)
{
  size_t i;

  for(i = 0; i < CURL_ARRAYSIZE(trc_cfts); ++i) {
    if(!category || (trc_cfts[i].category & category))
      trc_cfts[i].cft->log_level = lvl;
  }
  for(i = 0; i < CURL_ARRAYSIZE(trc_feats); ++i) {
    if(!category || (trc_feats[i].category & category))
      trc_feats[i].feat->log_level = lvl;
  }
}

static CURLcode trc_opt(const char *config)
{
  struct Curl_str out;
  while(!curlx_str_until(&config, &out, 32, ',')) {
    int lvl = CURL_LOG_LVL_INFO;
    const char *token = curlx_str(&out);

    if(*token == '-') {
      lvl = CURL_LOG_LVL_NONE;
      curlx_str_nudge(&out, 1);
    }
    else if(*token == '+')
      curlx_str_nudge(&out, 1);

    if(curlx_str_casecompare(&out, "all"))
      trc_apply_level_by_category(TRC_CT_NONE, lvl);
    else if(curlx_str_casecompare(&out, "protocol"))
      trc_apply_level_by_category(TRC_CT_PROTOCOL, lvl);
    else if(curlx_str_casecompare(&out, "network"))
      trc_apply_level_by_category(TRC_CT_NETWORK, lvl);
    else if(curlx_str_casecompare(&out, "proxy"))
      trc_apply_level_by_category(TRC_CT_PROXY, lvl);
    else if(curlx_str_casecompare(&out, "doh")) {
      struct Curl_str dns = { "dns", 3 };
      trc_apply_level_by_name(&dns, lvl);
    }
    else
      trc_apply_level_by_name(&out, lvl);

    if(curlx_str_single(&config, ','))
      break;
  }
  return CURLE_OK;
}

CURLcode Curl_trc_opt(const char *config)
{
  CURLcode result = config ? trc_opt(config) : CURLE_OK;
#ifdef DEBUGBUILD
  /* CURL_DEBUG can override anything */
  if(!result) {
    const char *dbg_config = getenv("CURL_DEBUG");
    if(dbg_config)
      result = trc_opt(dbg_config);
  }
#endif /* DEBUGBUILD */
  return result;
}

CURLcode Curl_trc_init(void)
{
#ifdef DEBUGBUILD
  return Curl_trc_opt(NULL);
#else
  return CURLE_OK;
#endif
}

#else /* CURL_DISABLE_VERBOSE_STRINGS */

CURLcode Curl_trc_init(void)
{
  return CURLE_OK;
}

void Curl_infof(struct Curl_easy *data, const char *fmt, ...)
{
  (void)data;
  (void)fmt;
}

void Curl_trc_cf_infof(struct Curl_easy *data, const struct Curl_cfilter *cf,
                       const char *fmt, ...)
{
  (void)data;
  (void)cf;
  (void)fmt;
}

void Curl_trc_multi(struct Curl_easy *data, const char *fmt, ...)
{
  (void)data;
  (void)fmt;
}

void Curl_trc_write(struct Curl_easy *data, const char *fmt, ...)
{
  (void)data;
  (void)fmt;
}

void Curl_trc_dns(struct Curl_easy *data, const char *fmt, ...)
{
  (void)data;
  (void)fmt;
}

void Curl_trc_timer(struct Curl_easy *data, int tid, const char *fmt, ...)
{
  (void)data;
  (void)tid;
  (void)fmt;
}

void Curl_trc_read(struct Curl_easy *data, const char *fmt, ...)
{
  (void)data;
  (void)fmt;
}

#ifndef CURL_DISABLE_FTP
void Curl_trc_ftp(struct Curl_easy *data, const char *fmt, ...)
{
  (void)data;
  (void)fmt;
}
#endif
#ifndef CURL_DISABLE_SMTP
void Curl_trc_smtp(struct Curl_easy *data, const char *fmt, ...)
{
  (void)data;
  (void)fmt;
}
#endif
#if !defined(CURL_DISABLE_WEBSOCKETS) && !defined(CURL_DISABLE_HTTP)
void Curl_trc_ws(struct Curl_easy *data, const char *fmt, ...)
{
  (void)data;
  (void)fmt;
}
#endif
#ifdef USE_SSH
void Curl_trc_ssh(struct Curl_easy *data, const char *fmt, ...)
{
  (void)data;
  (void)fmt;
}
#endif
#ifdef USE_SSL
void Curl_trc_ssls(struct Curl_easy *data, const char *fmt, ...)
{
  (void)data;
  (void)fmt;
}
#endif

#endif /* !CURL_DISABLE_VERBOSE_STRINGS */

Coverage Report

Created: 2026-04-29 07:01

Line	Count	Source
1		/***************************************************************************
2		* _ _ ____ _
3		* Project ___\| \| \| \| _ \\| \|
4		* / __\| \| \| \| \|_) \| \|
5		* \| (__\| \|_\| \| _ <\| \|___
6		* \___\|\___/\|_\| \_\_____\|
7		*
8		* Copyright (C) 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.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		* SPDX-License-Identifier: curl
22		*
23		***************************************************************************/
24		#include "curl_setup.h"
25
26		#include "curl_trc.h"
27		#include "urldata.h"
28		#include "cfilters.h"
29		#include "multiif.h"
30
31		#include "cf-socket.h"
32		#include "connect.h"
33		#include "http2.h"
34		#include "http_proxy.h"
35		#include "cf-h1-proxy.h"
36		#include "cf-h2-proxy.h"
37		#include "cf-haproxy.h"
38		#include "cf-https-connect.h"
39		#include "cf-ip-happy.h"
40		#include "progress.h"
41		#include "socks.h"
42		#include "curlx/strparse.h"
43		#include "vtls/vtls.h"
44		#include "vquic/vquic.h"
45		#include "curlx/strcopy.h"
46
47		static void trc_write(struct Curl_easy *data, curl_infotype type,
48		const char *ptr, size_t size)
49	0	{
50	0	if(data->set.verbose) {
51	0	if(data->set.fdebug) {
52	0	bool inCallback = Curl_is_in_callback(data);
53	0	Curl_set_in_callback(data, TRUE);
54	0	(void)(*data->set.fdebug)(data, type, CURL_UNCONST(ptr), size,
55	0	data->set.debugdata);
56	0	Curl_set_in_callback(data, inCallback);
57	0	}
58	0	else {
59	0	static const char s_infotype[CURLINFO_END][3] = {
60	0	"* ", "< ", "> ", "{ ", "} ", "{ ", "} " };
61	0	switch(type) {
62	0	case CURLINFO_TEXT:
63	0	case CURLINFO_HEADER_OUT:
64	0	case CURLINFO_HEADER_IN:
65	0	fwrite(s_infotype[type], 2, 1, data->set.err);
66	0	fwrite(ptr, size, 1, data->set.err);
67	0	break;
68	0	default: /* nada */
69	0	break;
70	0	}
71	0	}
72	0	}
73	0	}
74
75		/* max length we trace before ending in '...' */
76	0	#define TRC_LINE_MAX 2048
77
78	0	#define CURL_TRC_FMT_IDSC "[x-%" CURL_FORMAT_CURL_OFF_T "] "
79	0	#define CURL_TRC_FMT_IDSD "[%" CURL_FORMAT_CURL_OFF_T "-x] "
80	0	#define CURL_TRC_FMT_IDSDC "[%" CURL_FORMAT_CURL_OFF_T "-%" \
81	0	CURL_FORMAT_CURL_OFF_T "] "
82
83		static struct curl_trc_feat Curl_trc_feat_ids = {
84		"LIB-IDS",
85		CURL_LOG_LVL_NONE,
86		};
87		#define CURL_TRC_IDS(data) \
88	0	(Curl_trc_is_verbose(data) && \
89	0	Curl_trc_feat_ids.log_level >= CURL_LOG_LVL_INFO)
90
91		static size_t trc_print_ids(struct Curl_easy data, char buf, size_t maxlen)
92	0	{
93	0	curl_off_t cid = data->conn ?
94	0	data->conn->connection_id : data->state.recent_conn_id;
95	0	if(data->id >= 0) {
96	0	if(cid >= 0)
97	0	return curl_msnprintf(buf, maxlen, CURL_TRC_FMT_IDSDC, data->id, cid);
98	0	else
99	0	return curl_msnprintf(buf, maxlen, CURL_TRC_FMT_IDSD, data->id);
100	0	}
101	0	else if(cid >= 0)
102	0	return curl_msnprintf(buf, maxlen, CURL_TRC_FMT_IDSC, cid);
103	0	else {
104	0	return curl_msnprintf(buf, maxlen, "[x-x] ");
105	0	}
106	0	}
107
108		static size_t trc_end_buf(char *buf, size_t len, size_t maxlen, bool addnl)
109	0	{
110		/* make sure we end the trace line in `buf` properly. It needs
111		* to end with a terminating '\0' or '\n\0' */
112	0	if(len >= (maxlen - (addnl ? 2 : 1))) {
113	0	len = maxlen - 5;
114	0	buf[len++] = '.';
115	0	buf[len++] = '.';
116	0	buf[len++] = '.';
117	0	buf[len++] = '\n';
118	0	}
119	0	else if(addnl)
120	0	buf[len++] = '\n';
121	0	buf[len] = '\0';
122	0	return len;
123	0	}
124
125		void Curl_debug(struct Curl_easy *data, curl_infotype type,
126		const char *ptr, size_t size)
127	0	{
128	0	if(data->set.verbose) {
129	0	static const char s_infotype[CURLINFO_END][3] = {
130	0	"* ", "< ", "> ", "{ ", "} ", "{ ", "} " };
131	0	char buf[TRC_LINE_MAX];
132	0	size_t len;
133	0	if(data->set.fdebug) {
134	0	bool inCallback = Curl_is_in_callback(data);
135
136	0	if(CURL_TRC_IDS(data) && (size < TRC_LINE_MAX)) {
137	0	len = trc_print_ids(data, buf, TRC_LINE_MAX);
138	0	len += curl_msnprintf(buf + len, TRC_LINE_MAX - len, "%.*s",
139	0	(int)size, ptr);
140	0	len = trc_end_buf(buf, len, TRC_LINE_MAX, FALSE);
141	0	Curl_set_in_callback(data, TRUE);
142	0	(void)(*data->set.fdebug)(data, type, buf, len, data->set.debugdata);
143	0	Curl_set_in_callback(data, inCallback);
144	0	}
145	0	else {
146	0	Curl_set_in_callback(data, TRUE);
147	0	(void)(*data->set.fdebug)(data, type, CURL_UNCONST(ptr),
148	0	size, data->set.debugdata);
149	0	Curl_set_in_callback(data, inCallback);
150	0	}
151	0	}
152	0	else {
153	0	switch(type) {
154	0	case CURLINFO_TEXT:
155	0	case CURLINFO_HEADER_OUT:
156	0	case CURLINFO_HEADER_IN:
157	0	#ifndef CURL_DISABLE_VERBOSE_STRINGS
158	0	if(CURL_TRC_IDS(data)) {
159	0	len = trc_print_ids(data, buf, TRC_LINE_MAX);
160	0	fwrite(buf, len, 1, data->set.err);
161	0	}
162	0	#endif
163	0	fwrite(s_infotype[type], 2, 1, data->set.err);
164	0	fwrite(ptr, size, 1, data->set.err);
165	0	break;
166	0	default: /* nada */
167	0	break;
168	0	}
169	0	}
170	0	}
171	0	}
172
173		/* Curl_failf() is for messages stating why we failed.
174		* The message SHALL NOT include any LF or CR.
175		*/
176		void Curl_failf(struct Curl_easy data, const char fmt, ...)
177	0	{
178	0	DEBUGASSERT(!strchr(fmt, '\n'));
179	0	if(data->set.verbose \|\| data->set.errorbuffer) {
180	0	va_list ap;
181	0	size_t len;
182	0	char error[CURL_ERROR_SIZE + 2];
183	0	va_start(ap, fmt);
184	0	len = curl_mvsnprintf(error, CURL_ERROR_SIZE, fmt, ap);
185
186	0	if(data->set.errorbuffer && !data->state.errorbuf) {
187	0	curlx_strcopy(data->set.errorbuffer, CURL_ERROR_SIZE, error, len);
188	0	data->state.errorbuf = TRUE; /* wrote error string */
189	0	}
190	0	error[len++] = '\n';
191	0	error[len] = '\0';
192	0	trc_write(data, CURLINFO_TEXT, error, len);
193	0	va_end(ap);
194	0	}
195	0	}
196
197		void Curl_reset_fail(struct Curl_easy *data)
198	0	{
199	0	if(data->set.errorbuffer)
200	0	data->set.errorbuffer[0] = 0;
201	0	data->state.errorbuf = FALSE;
202	0	}
203
204		#ifdef CURLVERBOSE
205		struct curl_trc_feat Curl_trc_feat_multi = {
206		"MULTI",
207		CURL_LOG_LVL_NONE,
208		};
209		struct curl_trc_feat Curl_trc_feat_read = {
210		"READ",
211		CURL_LOG_LVL_NONE,
212		};
213		struct curl_trc_feat Curl_trc_feat_write = {
214		"WRITE",
215		CURL_LOG_LVL_NONE,
216		};
217		struct curl_trc_feat Curl_trc_feat_dns = {
218		"DNS",
219		CURL_LOG_LVL_NONE,
220		};
221		struct curl_trc_feat Curl_trc_feat_timer = {
222		"TIMER",
223		CURL_LOG_LVL_NONE,
224		};
225		#endif
226
227		#ifndef CURL_DISABLE_VERBOSE_STRINGS
228
229		static void trc_infof(struct Curl_easy *data,
230		struct curl_trc_feat *feat,
231		const char *opt_id, int opt_id_idx,
232		const char * const fmt, va_list ap) CURL_PRINTF(5, 0);
233
234		static void trc_infof(struct Curl_easy *data,
235		struct curl_trc_feat *feat,
236		const char *opt_id, int opt_id_idx,
237		const char * const fmt, va_list ap)
238	0	{
239	0	size_t len = 0;
240	0	char buf[TRC_LINE_MAX];
241
242	0	if(CURL_TRC_IDS(data))
243	0	len += trc_print_ids(data, buf + len, TRC_LINE_MAX - len);
244	0	if(feat)
245	0	len += curl_msnprintf(buf + len, TRC_LINE_MAX - len, "[%s] ", feat->name);
246	0	if(opt_id) {
247	0	if(opt_id_idx > 0)
248	0	len += curl_msnprintf(buf + len, TRC_LINE_MAX - len, "[%s-%d] ",
249	0	opt_id, opt_id_idx);
250	0	else
251	0	len += curl_msnprintf(buf + len, TRC_LINE_MAX - len, "[%s] ", opt_id);
252	0	}
253	0	len += curl_mvsnprintf(buf + len, TRC_LINE_MAX - len, fmt, ap);
254	0	len = trc_end_buf(buf, len, TRC_LINE_MAX, TRUE);
255	0	trc_write(data, CURLINFO_TEXT, buf, len);
256	0	}
257
258		void Curl_infof(struct Curl_easy data, const char fmt, ...)
259	0	{
260	0	DEBUGASSERT(!strchr(fmt, '\n'));
261	0	if(Curl_trc_is_verbose(data)) {
262	0	va_list ap;
263	0	va_start(ap, fmt);
264	0	trc_infof(data, data->state.feat, NULL, 0, fmt, ap);
265	0	va_end(ap);
266	0	}
267	0	}
268
269		void Curl_trc_cf_infof(struct Curl_easy data, const struct Curl_cfilter cf,
270		const char *fmt, ...)
271	0	{
272	0	DEBUGASSERT(cf);
273	0	if(Curl_trc_cf_is_verbose(cf, data)) {
274	0	va_list ap;
275	0	va_start(ap, fmt);
276	0	trc_infof(data, data->state.feat, cf->cft->name, cf->sockindex, fmt, ap);
277	0	va_end(ap);
278	0	}
279	0	}
280
281		static const char * const Curl_trc_timer_names[] = {
282		"100_TIMEOUT",
283		"ASYNC_NAME",
284		"CONNECTTIMEOUT",
285		"DNS_PER_NAME",
286		"DNS_PER_NAME2",
287		"HAPPY_EYEBALLS_DNS",
288		"HAPPY_EYEBALLS",
289		"MULTI_PENDING",
290		"SPEEDCHECK",
291		"TIMEOUT",
292		"TOOFAST",
293		"QUIC",
294		"FTP_ACCEPT",
295		"ALPN_EYEBALLS",
296		"SHUTDOWN",
297		};
298
299		static const char *trc_timer_name(int tid)
300	0	{
301	0	if((tid >= 0) && ((size_t)tid < CURL_ARRAYSIZE(Curl_trc_timer_names)))
302	0	return Curl_trc_timer_names[(size_t)tid];
303	0	return "UNKNOWN?";
304	0	}
305
306		void Curl_trc_timer(struct Curl_easy data, int tid, const char fmt, ...)
307	0	{
308	0	DEBUGASSERT(!strchr(fmt, '\n'));
309	0	if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_timer)) {
310	0	const char *tname = trc_timer_name(tid);
311	0	va_list ap;
312	0	va_start(ap, fmt);
313	0	trc_infof(data, &Curl_trc_feat_timer, tname, 0, fmt, ap);
314	0	va_end(ap);
315	0	}
316	0	}
317
318		void Curl_trc_easy_timers(struct Curl_easy *data)
319	0	{
320	0	if(CURL_TRC_TIMER_is_verbose(data)) {
321	0	struct Curl_llist_node *e = Curl_llist_head(&data->state.timeoutlist);
322	0	if(e) {
323	0	const struct curltime *pnow = Curl_pgrs_now(data);
324	0	while(e) {
325	0	struct time_node *n = Curl_node_elem(e);
326	0	e = Curl_node_next(e);
327	0	CURL_TRC_TIMER(data, n->eid, "expires in %" FMT_TIMEDIFF_T "ns",
328	0	curlx_ptimediff_us(&n->time, pnow));
329	0	}
330	0	}
331	0	}
332	0	}
333
334		static const char * const Curl_trc_mstate_names[] = {
335		"INIT",
336		"PENDING",
337		"SETUP",
338		"CONNECT",
339		"RESOLVING",
340		"CONNECTING",
341		"PROTOCONNECT",
342		"PROTOCONNECTING",
343		"DO",
344		"DOING",
345		"DOING_MORE",
346		"DID",
347		"PERFORMING",
348		"RATELIMITING",
349		"DONE",
350		"COMPLETED",
351		"MSGSENT",
352		};
353
354		const char *Curl_trc_mstate_name(int state)
355	0	{
356	0	if((state >= 0) && ((size_t)state < CURL_ARRAYSIZE(Curl_trc_mstate_names)))
357	0	return Curl_trc_mstate_names[(size_t)state];
358	0	return "?";
359	0	}
360
361		void Curl_trc_multi(struct Curl_easy data, const char fmt, ...)
362	0	{
363	0	DEBUGASSERT(!strchr(fmt, '\n'));
364	0	if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_multi)) {
365	0	const char *sname = (data->id >= 0) ?
366	0	Curl_trc_mstate_name(data->mstate) : NULL;
367	0	va_list ap;
368	0	va_start(ap, fmt);
369	0	trc_infof(data, &Curl_trc_feat_multi, sname, 0, fmt, ap);
370	0	va_end(ap);
371	0	}
372	0	}
373
374		void Curl_trc_read(struct Curl_easy data, const char fmt, ...)
375	0	{
376	0	DEBUGASSERT(!strchr(fmt, '\n'));
377	0	if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_read)) {
378	0	va_list ap;
379	0	va_start(ap, fmt);
380	0	trc_infof(data, &Curl_trc_feat_read, NULL, 0, fmt, ap);
381	0	va_end(ap);
382	0	}
383	0	}
384
385		void Curl_trc_write(struct Curl_easy data, const char fmt, ...)
386	0	{
387	0	DEBUGASSERT(!strchr(fmt, '\n'));
388	0	if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_write)) {
389	0	va_list ap;
390	0	va_start(ap, fmt);
391	0	trc_infof(data, &Curl_trc_feat_write, NULL, 0, fmt, ap);
392	0	va_end(ap);
393	0	}
394	0	}
395
396		void Curl_trc_dns(struct Curl_easy data, const char fmt, ...)
397	0	{
398	0	DEBUGASSERT(!strchr(fmt, '\n'));
399	0	if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_dns)) {
400	0	va_list ap;
401	0	va_start(ap, fmt);
402	0	trc_infof(data, &Curl_trc_feat_dns, NULL, 0, fmt, ap);
403	0	va_end(ap);
404	0	}
405	0	}
406
407		#ifndef CURL_DISABLE_FTP
408		struct curl_trc_feat Curl_trc_feat_ftp = {
409		"FTP",
410		CURL_LOG_LVL_NONE,
411		};
412
413		void Curl_trc_ftp(struct Curl_easy data, const char fmt, ...)
414	0	{
415	0	DEBUGASSERT(!strchr(fmt, '\n'));
416	0	if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_ftp)) {
417	0	va_list ap;
418	0	va_start(ap, fmt);
419	0	trc_infof(data, &Curl_trc_feat_ftp, NULL, 0, fmt, ap);
420	0	va_end(ap);
421	0	}
422	0	}
423		#endif /* !CURL_DISABLE_FTP */
424
425		#ifndef CURL_DISABLE_SMTP
426		struct curl_trc_feat Curl_trc_feat_smtp = {
427		"SMTP",
428		CURL_LOG_LVL_NONE,
429		};
430
431		void Curl_trc_smtp(struct Curl_easy data, const char fmt, ...)
432		{
433		DEBUGASSERT(!strchr(fmt, '\n'));
434		if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_smtp)) {
435		va_list ap;
436		va_start(ap, fmt);
437		trc_infof(data, &Curl_trc_feat_smtp, NULL, 0, fmt, ap);
438		va_end(ap);
439		}
440		}
441		#endif /* !CURL_DISABLE_SMTP */
442
443		#ifdef USE_SSL
444		struct curl_trc_feat Curl_trc_feat_ssls = {
445		"SSLS",
446		CURL_LOG_LVL_NONE,
447		};
448
449		void Curl_trc_ssls(struct Curl_easy data, const char fmt, ...)
450		{
451		DEBUGASSERT(!strchr(fmt, '\n'));
452		if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_ssls)) {
453		va_list ap;
454		va_start(ap, fmt);
455		trc_infof(data, &Curl_trc_feat_ssls, NULL, 0, fmt, ap);
456		va_end(ap);
457		}
458		}
459		#endif /* USE_SSL */
460
461		#ifdef USE_SSH
462		struct curl_trc_feat Curl_trc_feat_ssh = {
463		"SSH",
464		CURL_LOG_LVL_NONE,
465		};
466
467		void Curl_trc_ssh(struct Curl_easy data, const char fmt, ...)
468		{
469		DEBUGASSERT(!strchr(fmt, '\n'));
470		if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_ssh)) {
471		va_list ap;
472		va_start(ap, fmt);
473		trc_infof(data, &Curl_trc_feat_ssh, NULL, 0, fmt, ap);
474		va_end(ap);
475		}
476		}
477		#endif /* USE_SSH */
478
479		#if !defined(CURL_DISABLE_WEBSOCKETS) && !defined(CURL_DISABLE_HTTP)
480		struct curl_trc_feat Curl_trc_feat_ws = {
481		"WS",
482		CURL_LOG_LVL_NONE,
483		};
484
485		void Curl_trc_ws(struct Curl_easy data, const char fmt, ...)
486		{
487		DEBUGASSERT(!strchr(fmt, '\n'));
488		if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_ws)) {
489		va_list ap;
490		va_start(ap, fmt);
491		trc_infof(data, &Curl_trc_feat_ws, NULL, 0, fmt, ap);
492		va_end(ap);
493		}
494		}
495		#endif /* !CURL_DISABLE_WEBSOCKETS && !CURL_DISABLE_HTTP */
496
497	0	#define TRC_CT_NONE 0
498	0	#define TRC_CT_PROTOCOL (1 << 0)
499	0	#define TRC_CT_NETWORK (1 << 1)
500	0	#define TRC_CT_PROXY (1 << 2)
501		#define TRC_CT_INTERNALS (1 << 3)
502
503		struct trc_feat_def {
504		struct curl_trc_feat *feat;
505		unsigned int category;
506		};
507
508		static struct trc_feat_def trc_feats[] = {
509		{ &Curl_trc_feat_ids, TRC_CT_INTERNALS },
510		{ &Curl_trc_feat_multi, TRC_CT_NETWORK },
511		{ &Curl_trc_feat_read, TRC_CT_NONE },
512		{ &Curl_trc_feat_write, TRC_CT_NONE },
513		{ &Curl_trc_feat_dns, TRC_CT_NETWORK },
514		{ &Curl_trc_feat_timer, TRC_CT_NETWORK },
515		#ifndef CURL_DISABLE_FTP
516		{ &Curl_trc_feat_ftp, TRC_CT_PROTOCOL },
517		#endif
518		#ifndef CURL_DISABLE_SMTP
519		{ &Curl_trc_feat_smtp, TRC_CT_PROTOCOL },
520		#endif
521		#ifdef USE_SSL
522		{ &Curl_trc_feat_ssls, TRC_CT_NETWORK },
523		#endif
524		#ifdef USE_SSH
525		{ &Curl_trc_feat_ssh, TRC_CT_PROTOCOL },
526		#endif
527		#if !defined(CURL_DISABLE_WEBSOCKETS) && !defined(CURL_DISABLE_HTTP)
528		{ &Curl_trc_feat_ws, TRC_CT_PROTOCOL },
529		#endif
530		};
531
532		struct trc_cft_def {
533		struct Curl_cftype *cft;
534		unsigned int category;
535		};
536
537		static struct trc_cft_def trc_cfts[] = {
538		{ &Curl_cft_tcp, TRC_CT_NETWORK },
539		{ &Curl_cft_udp, TRC_CT_NETWORK },
540		{ &Curl_cft_unix, TRC_CT_NETWORK },
541		{ &Curl_cft_tcp_accept, TRC_CT_NETWORK },
542		{ &Curl_cft_ip_happy, TRC_CT_NETWORK },
543		{ &Curl_cft_setup, TRC_CT_PROTOCOL },
544		#if !defined(CURL_DISABLE_HTTP) && defined(USE_NGHTTP2)
545		{ &Curl_cft_nghttp2, TRC_CT_PROTOCOL },
546		#endif
547		#ifdef USE_SSL
548		{ &Curl_cft_ssl, TRC_CT_NETWORK },
549		#ifndef CURL_DISABLE_PROXY
550		{ &Curl_cft_ssl_proxy, TRC_CT_PROXY },
551		#endif
552		#endif
553		#ifndef CURL_DISABLE_PROXY
554		#ifndef CURL_DISABLE_HTTP
555		{ &Curl_cft_h1_proxy, TRC_CT_PROXY },
556		#ifdef USE_NGHTTP2
557		{ &Curl_cft_h2_proxy, TRC_CT_PROXY },
558		#endif
559		{ &Curl_cft_http_proxy, TRC_CT_PROXY },
560		#endif /* !CURL_DISABLE_HTTP */
561		{ &Curl_cft_haproxy, TRC_CT_PROXY },
562		{ &Curl_cft_socks_proxy, TRC_CT_PROXY },
563		#endif /* !CURL_DISABLE_PROXY */
564		#if !defined(CURL_DISABLE_HTTP) && defined(USE_HTTP3)
565		{ &Curl_cft_http3, TRC_CT_PROTOCOL },
566		#endif
567		#ifndef CURL_DISABLE_HTTP
568		{ &Curl_cft_http_connect, TRC_CT_PROTOCOL },
569		#endif
570		};
571
572		static void trc_apply_level_by_name(struct Curl_str *token, int lvl)
573	0	{
574	0	size_t i;
575
576	0	for(i = 0; i < CURL_ARRAYSIZE(trc_cfts); ++i) {
577	0	if(curlx_str_casecompare(token, trc_cfts[i].cft->name)) {
578	0	trc_cfts[i].cft->log_level = lvl;
579	0	break;
580	0	}
581	0	}
582	0	for(i = 0; i < CURL_ARRAYSIZE(trc_feats); ++i) {
583	0	if(curlx_str_casecompare(token, trc_feats[i].feat->name)) {
584	0	trc_feats[i].feat->log_level = lvl;
585	0	break;
586	0	}
587	0	}
588	0	}
589
590		static void trc_apply_level_by_category(unsigned int category, int lvl)
591	0	{
592	0	size_t i;
593
594	0	for(i = 0; i < CURL_ARRAYSIZE(trc_cfts); ++i) {
595	0	if(!category \|\| (trc_cfts[i].category & category))
596	0	trc_cfts[i].cft->log_level = lvl;
597	0	}
598	0	for(i = 0; i < CURL_ARRAYSIZE(trc_feats); ++i) {
599	0	if(!category \|\| (trc_feats[i].category & category))
600	0	trc_feats[i].feat->log_level = lvl;
601	0	}
602	0	}
603
604		static CURLcode trc_opt(const char *config)
605	0	{
606	0	struct Curl_str out;
607	0	while(!curlx_str_until(&config, &out, 32, ',')) {
608	0	int lvl = CURL_LOG_LVL_INFO;
609	0	const char *token = curlx_str(&out);
610
611	0	if(*token == '-') {
612	0	lvl = CURL_LOG_LVL_NONE;
613	0	curlx_str_nudge(&out, 1);
614	0	}
615	0	else if(*token == '+')
616	0	curlx_str_nudge(&out, 1);
617
618	0	if(curlx_str_casecompare(&out, "all"))
619	0	trc_apply_level_by_category(TRC_CT_NONE, lvl);
620	0	else if(curlx_str_casecompare(&out, "protocol"))
621	0	trc_apply_level_by_category(TRC_CT_PROTOCOL, lvl);
622	0	else if(curlx_str_casecompare(&out, "network"))
623	0	trc_apply_level_by_category(TRC_CT_NETWORK, lvl);
624	0	else if(curlx_str_casecompare(&out, "proxy"))
625	0	trc_apply_level_by_category(TRC_CT_PROXY, lvl);
626	0	else if(curlx_str_casecompare(&out, "doh")) {
627	0	struct Curl_str dns = { "dns", 3 };
628	0	trc_apply_level_by_name(&dns, lvl);
629	0	}
630	0	else
631	0	trc_apply_level_by_name(&out, lvl);
632
633	0	if(curlx_str_single(&config, ','))
634	0	break;
635	0	}
636	0	return CURLE_OK;
637	0	}
638
639		CURLcode Curl_trc_opt(const char *config)
640	0	{
641	0	CURLcode result = config ? trc_opt(config) : CURLE_OK;
642		#ifdef DEBUGBUILD
643		/* CURL_DEBUG can override anything */
644		if(!result) {
645		const char *dbg_config = getenv("CURL_DEBUG");
646		if(dbg_config)
647		result = trc_opt(dbg_config);
648		}
649		#endif /* DEBUGBUILD */
650	0	return result;
651	0	}
652
653		CURLcode Curl_trc_init(void)
654	0	{
655		#ifdef DEBUGBUILD
656		return Curl_trc_opt(NULL);
657		#else
658	0	return CURLE_OK;
659	0	#endif
660	0	}
661
662		#else /* CURL_DISABLE_VERBOSE_STRINGS */
663
664		CURLcode Curl_trc_init(void)
665		{
666		return CURLE_OK;
667		}
668
669		void Curl_infof(struct Curl_easy data, const char fmt, ...)
670		{
671		(void)data;
672		(void)fmt;
673		}
674
675		void Curl_trc_cf_infof(struct Curl_easy data, const struct Curl_cfilter cf,
676		const char *fmt, ...)
677		{
678		(void)data;
679		(void)cf;
680		(void)fmt;
681		}
682
683		void Curl_trc_multi(struct Curl_easy data, const char fmt, ...)
684		{
685		(void)data;
686		(void)fmt;
687		}
688
689		void Curl_trc_write(struct Curl_easy data, const char fmt, ...)
690		{
691		(void)data;
692		(void)fmt;
693		}
694
695		void Curl_trc_dns(struct Curl_easy data, const char fmt, ...)
696		{
697		(void)data;
698		(void)fmt;
699		}
700
701		void Curl_trc_timer(struct Curl_easy data, int tid, const char fmt, ...)
702		{
703		(void)data;
704		(void)tid;
705		(void)fmt;
706		}
707
708		void Curl_trc_read(struct Curl_easy data, const char fmt, ...)
709		{
710		(void)data;
711		(void)fmt;
712		}
713
714		#ifndef CURL_DISABLE_FTP
715		void Curl_trc_ftp(struct Curl_easy data, const char fmt, ...)
716		{
717		(void)data;
718		(void)fmt;
719		}
720		#endif
721		#ifndef CURL_DISABLE_SMTP
722		void Curl_trc_smtp(struct Curl_easy data, const char fmt, ...)
723		{
724		(void)data;
725		(void)fmt;
726		}
727		#endif
728		#if !defined(CURL_DISABLE_WEBSOCKETS) && !defined(CURL_DISABLE_HTTP)
729		void Curl_trc_ws(struct Curl_easy data, const char fmt, ...)
730		{
731		(void)data;
732		(void)fmt;
733		}
734		#endif
735		#ifdef USE_SSH
736		void Curl_trc_ssh(struct Curl_easy data, const char fmt, ...)
737		{
738		(void)data;
739		(void)fmt;
740		}
741		#endif
742		#ifdef USE_SSL
743		void Curl_trc_ssls(struct Curl_easy data, const char fmt, ...)
744		{
745		(void)data;
746		(void)fmt;
747		}
748		#endif
749
750		#endif /* !CURL_DISABLE_VERBOSE_STRINGS */