/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);
  }
}

#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);
  }
}

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,
};

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(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: 2026-03-12 06:35

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		#ifndef CURL_DISABLE_VERBOSE_STRINGS
198
199		static void trc_infof(struct Curl_easy *data,
200		struct curl_trc_feat *feat,
201		const char *opt_id, int opt_id_idx,
202		const char * const fmt, va_list ap) CURL_PRINTF(5, 0);
203
204		static void trc_infof(struct Curl_easy *data,
205		struct curl_trc_feat *feat,
206		const char *opt_id, int opt_id_idx,
207		const char * const fmt, va_list ap)
208	0	{
209	0	size_t len = 0;
210	0	char buf[TRC_LINE_MAX];
211
212	0	if(CURL_TRC_IDS(data))
213	0	len += trc_print_ids(data, buf + len, TRC_LINE_MAX - len);
214	0	if(feat)
215	0	len += curl_msnprintf(buf + len, TRC_LINE_MAX - len, "[%s] ", feat->name);
216	0	if(opt_id) {
217	0	if(opt_id_idx > 0)
218	0	len += curl_msnprintf(buf + len, TRC_LINE_MAX - len, "[%s-%d] ",
219	0	opt_id, opt_id_idx);
220	0	else
221	0	len += curl_msnprintf(buf + len, TRC_LINE_MAX - len, "[%s] ", opt_id);
222	0	}
223	0	len += curl_mvsnprintf(buf + len, TRC_LINE_MAX - len, fmt, ap);
224	0	len = trc_end_buf(buf, len, TRC_LINE_MAX, TRUE);
225	0	trc_write(data, CURLINFO_TEXT, buf, len);
226	0	}
227
228		void Curl_infof(struct Curl_easy data, const char fmt, ...)
229	0	{
230	0	DEBUGASSERT(!strchr(fmt, '\n'));
231	0	if(Curl_trc_is_verbose(data)) {
232	0	va_list ap;
233	0	va_start(ap, fmt);
234	0	trc_infof(data, data->state.feat, NULL, 0, fmt, ap);
235	0	va_end(ap);
236	0	}
237	0	}
238
239		void Curl_trc_cf_infof(struct Curl_easy data, const struct Curl_cfilter cf,
240		const char *fmt, ...)
241	0	{
242	0	DEBUGASSERT(cf);
243	0	if(Curl_trc_cf_is_verbose(cf, data)) {
244	0	va_list ap;
245	0	va_start(ap, fmt);
246	0	trc_infof(data, data->state.feat, cf->cft->name, cf->sockindex, fmt, ap);
247	0	va_end(ap);
248	0	}
249	0	}
250
251		struct curl_trc_feat Curl_trc_feat_multi = {
252		"MULTI",
253		CURL_LOG_LVL_NONE,
254		};
255		struct curl_trc_feat Curl_trc_feat_read = {
256		"READ",
257		CURL_LOG_LVL_NONE,
258		};
259		struct curl_trc_feat Curl_trc_feat_write = {
260		"WRITE",
261		CURL_LOG_LVL_NONE,
262		};
263		struct curl_trc_feat Curl_trc_feat_dns = {
264		"DNS",
265		CURL_LOG_LVL_NONE,
266		};
267		struct curl_trc_feat Curl_trc_feat_timer = {
268		"TIMER",
269		CURL_LOG_LVL_NONE,
270		};
271
272		static const char * const Curl_trc_timer_names[] = {
273		"100_TIMEOUT",
274		"ASYNC_NAME",
275		"CONNECTTIMEOUT",
276		"DNS_PER_NAME",
277		"DNS_PER_NAME2",
278		"HAPPY_EYEBALLS_DNS",
279		"HAPPY_EYEBALLS",
280		"MULTI_PENDING",
281		"SPEEDCHECK",
282		"TIMEOUT",
283		"TOOFAST",
284		"QUIC",
285		"FTP_ACCEPT",
286		"ALPN_EYEBALLS",
287		"SHUTDOWN",
288		};
289
290		static const char *trc_timer_name(int tid)
291	0	{
292	0	if((tid >= 0) && ((size_t)tid < CURL_ARRAYSIZE(Curl_trc_timer_names)))
293	0	return Curl_trc_timer_names[(size_t)tid];
294	0	return "UNKNOWN?";
295	0	}
296
297		void Curl_trc_timer(struct Curl_easy data, int tid, const char fmt, ...)
298	0	{
299	0	DEBUGASSERT(!strchr(fmt, '\n'));
300	0	if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_timer)) {
301	0	const char *tname = trc_timer_name(tid);
302	0	va_list ap;
303	0	va_start(ap, fmt);
304	0	trc_infof(data, &Curl_trc_feat_timer, tname, 0, fmt, ap);
305	0	va_end(ap);
306	0	}
307	0	}
308
309		void Curl_trc_easy_timers(struct Curl_easy *data)
310	0	{
311	0	if(CURL_TRC_TIMER_is_verbose(data)) {
312	0	struct Curl_llist_node *e = Curl_llist_head(&data->state.timeoutlist);
313	0	if(e) {
314	0	const struct curltime *pnow = Curl_pgrs_now(data);
315	0	while(e) {
316	0	struct time_node *n = Curl_node_elem(e);
317	0	e = Curl_node_next(e);
318	0	CURL_TRC_TIMER(data, n->eid, "expires in %" FMT_TIMEDIFF_T "ns",
319	0	curlx_ptimediff_us(&n->time, pnow));
320	0	}
321	0	}
322	0	}
323	0	}
324
325		static const char * const Curl_trc_mstate_names[] = {
326		"INIT",
327		"PENDING",
328		"SETUP",
329		"CONNECT",
330		"RESOLVING",
331		"CONNECTING",
332		"PROTOCONNECT",
333		"PROTOCONNECTING",
334		"DO",
335		"DOING",
336		"DOING_MORE",
337		"DID",
338		"PERFORMING",
339		"RATELIMITING",
340		"DONE",
341		"COMPLETED",
342		"MSGSENT",
343		};
344
345		const char *Curl_trc_mstate_name(int state)
346	0	{
347	0	if((state >= 0) && ((size_t)state < CURL_ARRAYSIZE(Curl_trc_mstate_names)))
348	0	return Curl_trc_mstate_names[(size_t)state];
349	0	return "?";
350	0	}
351
352		void Curl_trc_multi(struct Curl_easy data, const char fmt, ...)
353	0	{
354	0	DEBUGASSERT(!strchr(fmt, '\n'));
355	0	if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_multi)) {
356	0	const char *sname = (data->id >= 0) ?
357	0	Curl_trc_mstate_name(data->mstate) : NULL;
358	0	va_list ap;
359	0	va_start(ap, fmt);
360	0	trc_infof(data, &Curl_trc_feat_multi, sname, 0, fmt, ap);
361	0	va_end(ap);
362	0	}
363	0	}
364
365		void Curl_trc_read(struct Curl_easy data, const char fmt, ...)
366	0	{
367	0	DEBUGASSERT(!strchr(fmt, '\n'));
368	0	if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_read)) {
369	0	va_list ap;
370	0	va_start(ap, fmt);
371	0	trc_infof(data, &Curl_trc_feat_read, NULL, 0, fmt, ap);
372	0	va_end(ap);
373	0	}
374	0	}
375
376		void Curl_trc_write(struct Curl_easy data, const char fmt, ...)
377	0	{
378	0	DEBUGASSERT(!strchr(fmt, '\n'));
379	0	if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_write)) {
380	0	va_list ap;
381	0	va_start(ap, fmt);
382	0	trc_infof(data, &Curl_trc_feat_write, NULL, 0, fmt, ap);
383	0	va_end(ap);
384	0	}
385	0	}
386
387		void Curl_trc_dns(struct Curl_easy data, const char fmt, ...)
388	0	{
389	0	DEBUGASSERT(!strchr(fmt, '\n'));
390	0	if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_dns)) {
391	0	va_list ap;
392	0	va_start(ap, fmt);
393	0	trc_infof(data, &Curl_trc_feat_dns, NULL, 0, fmt, ap);
394	0	va_end(ap);
395	0	}
396	0	}
397
398		#ifndef CURL_DISABLE_FTP
399		struct curl_trc_feat Curl_trc_feat_ftp = {
400		"FTP",
401		CURL_LOG_LVL_NONE,
402		};
403
404		void Curl_trc_ftp(struct Curl_easy data, const char fmt, ...)
405	0	{
406	0	DEBUGASSERT(!strchr(fmt, '\n'));
407	0	if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_ftp)) {
408	0	va_list ap;
409	0	va_start(ap, fmt);
410	0	trc_infof(data, &Curl_trc_feat_ftp, NULL, 0, fmt, ap);
411	0	va_end(ap);
412	0	}
413	0	}
414		#endif /* !CURL_DISABLE_FTP */
415
416		#ifndef CURL_DISABLE_SMTP
417		struct curl_trc_feat Curl_trc_feat_smtp = {
418		"SMTP",
419		CURL_LOG_LVL_NONE,
420		};
421
422		void Curl_trc_smtp(struct Curl_easy data, const char fmt, ...)
423		{
424		DEBUGASSERT(!strchr(fmt, '\n'));
425		if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_smtp)) {
426		va_list ap;
427		va_start(ap, fmt);
428		trc_infof(data, &Curl_trc_feat_smtp, NULL, 0, fmt, ap);
429		va_end(ap);
430		}
431		}
432		#endif /* !CURL_DISABLE_SMTP */
433
434		#ifdef USE_SSL
435		struct curl_trc_feat Curl_trc_feat_ssls = {
436		"SSLS",
437		CURL_LOG_LVL_NONE,
438		};
439
440		void Curl_trc_ssls(struct Curl_easy data, const char fmt, ...)
441		{
442		DEBUGASSERT(!strchr(fmt, '\n'));
443		if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_ssls)) {
444		va_list ap;
445		va_start(ap, fmt);
446		trc_infof(data, &Curl_trc_feat_ssls, NULL, 0, fmt, ap);
447		va_end(ap);
448		}
449		}
450		#endif /* USE_SSL */
451
452		#ifdef USE_SSH
453		struct curl_trc_feat Curl_trc_feat_ssh = {
454		"SSH",
455		CURL_LOG_LVL_NONE,
456		};
457
458		void Curl_trc_ssh(struct Curl_easy data, const char fmt, ...)
459		{
460		DEBUGASSERT(!strchr(fmt, '\n'));
461		if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_ssh)) {
462		va_list ap;
463		va_start(ap, fmt);
464		trc_infof(data, &Curl_trc_feat_ssh, NULL, 0, fmt, ap);
465		va_end(ap);
466		}
467		}
468		#endif /* USE_SSH */
469
470		#if !defined(CURL_DISABLE_WEBSOCKETS) && !defined(CURL_DISABLE_HTTP)
471		struct curl_trc_feat Curl_trc_feat_ws = {
472		"WS",
473		CURL_LOG_LVL_NONE,
474		};
475
476		void Curl_trc_ws(struct Curl_easy data, const char fmt, ...)
477		{
478		DEBUGASSERT(!strchr(fmt, '\n'));
479		if(Curl_trc_ft_is_verbose(data, &Curl_trc_feat_ws)) {
480		va_list ap;
481		va_start(ap, fmt);
482		trc_infof(data, &Curl_trc_feat_ws, NULL, 0, fmt, ap);
483		va_end(ap);
484		}
485		}
486		#endif /* !CURL_DISABLE_WEBSOCKETS && !CURL_DISABLE_HTTP */
487
488	0	#define TRC_CT_NONE (0)
489	0	#define TRC_CT_PROTOCOL (1 << 0)
490	0	#define TRC_CT_NETWORK (1 << 1)
491	0	#define TRC_CT_PROXY (1 << 2)
492		#define TRC_CT_INTERNALS (1 << 3)
493
494		struct trc_feat_def {
495		struct curl_trc_feat *feat;
496		unsigned int category;
497		};
498
499		static struct trc_feat_def trc_feats[] = {
500		{ &Curl_trc_feat_ids, TRC_CT_INTERNALS },
501		{ &Curl_trc_feat_multi, TRC_CT_NETWORK },
502		{ &Curl_trc_feat_read, TRC_CT_NONE },
503		{ &Curl_trc_feat_write, TRC_CT_NONE },
504		{ &Curl_trc_feat_dns, TRC_CT_NETWORK },
505		{ &Curl_trc_feat_timer, TRC_CT_NETWORK },
506		#ifndef CURL_DISABLE_FTP
507		{ &Curl_trc_feat_ftp, TRC_CT_PROTOCOL },
508		#endif
509		#ifndef CURL_DISABLE_SMTP
510		{ &Curl_trc_feat_smtp, TRC_CT_PROTOCOL },
511		#endif
512		#ifdef USE_SSL
513		{ &Curl_trc_feat_ssls, TRC_CT_NETWORK },
514		#endif
515		#ifdef USE_SSH
516		{ &Curl_trc_feat_ssh, TRC_CT_PROTOCOL },
517		#endif
518		#if !defined(CURL_DISABLE_WEBSOCKETS) && !defined(CURL_DISABLE_HTTP)
519		{ &Curl_trc_feat_ws, TRC_CT_PROTOCOL },
520		#endif
521		};
522
523		struct trc_cft_def {
524		struct Curl_cftype *cft;
525		unsigned int category;
526		};
527
528		static struct trc_cft_def trc_cfts[] = {
529		{ &Curl_cft_tcp, TRC_CT_NETWORK },
530		{ &Curl_cft_udp, TRC_CT_NETWORK },
531		{ &Curl_cft_unix, TRC_CT_NETWORK },
532		{ &Curl_cft_tcp_accept, TRC_CT_NETWORK },
533		{ &Curl_cft_ip_happy, TRC_CT_NETWORK },
534		{ &Curl_cft_setup, TRC_CT_PROTOCOL },
535		#if !defined(CURL_DISABLE_HTTP) && defined(USE_NGHTTP2)
536		{ &Curl_cft_nghttp2, TRC_CT_PROTOCOL },
537		#endif
538		#ifdef USE_SSL
539		{ &Curl_cft_ssl, TRC_CT_NETWORK },
540		#ifndef CURL_DISABLE_PROXY
541		{ &Curl_cft_ssl_proxy, TRC_CT_PROXY },
542		#endif
543		#endif
544		#ifndef CURL_DISABLE_PROXY
545		#ifndef CURL_DISABLE_HTTP
546		{ &Curl_cft_h1_proxy, TRC_CT_PROXY },
547		#ifdef USE_NGHTTP2
548		{ &Curl_cft_h2_proxy, TRC_CT_PROXY },
549		#endif
550		{ &Curl_cft_http_proxy, TRC_CT_PROXY },
551		#endif /* !CURL_DISABLE_HTTP */
552		{ &Curl_cft_haproxy, TRC_CT_PROXY },
553		{ &Curl_cft_socks_proxy, TRC_CT_PROXY },
554		#endif /* !CURL_DISABLE_PROXY */
555		#if !defined(CURL_DISABLE_HTTP) && defined(USE_HTTP3)
556		{ &Curl_cft_http3, TRC_CT_PROTOCOL },
557		#endif
558		#ifndef CURL_DISABLE_HTTP
559		{ &Curl_cft_http_connect, TRC_CT_PROTOCOL },
560		#endif
561		};
562
563		static void trc_apply_level_by_name(struct Curl_str *token, int lvl)
564	0	{
565	0	size_t i;
566
567	0	for(i = 0; i < CURL_ARRAYSIZE(trc_cfts); ++i) {
568	0	if(curlx_str_casecompare(token, trc_cfts[i].cft->name)) {
569	0	trc_cfts[i].cft->log_level = lvl;
570	0	break;
571	0	}
572	0	}
573	0	for(i = 0; i < CURL_ARRAYSIZE(trc_feats); ++i) {
574	0	if(curlx_str_casecompare(token, trc_feats[i].feat->name)) {
575	0	trc_feats[i].feat->log_level = lvl;
576	0	break;
577	0	}
578	0	}
579	0	}
580
581		static void trc_apply_level_by_category(int category, int lvl)
582	0	{
583	0	size_t i;
584
585	0	for(i = 0; i < CURL_ARRAYSIZE(trc_cfts); ++i) {
586	0	if(!category \|\| (trc_cfts[i].category & category))
587	0	trc_cfts[i].cft->log_level = lvl;
588	0	}
589	0	for(i = 0; i < CURL_ARRAYSIZE(trc_feats); ++i) {
590	0	if(!category \|\| (trc_feats[i].category & category))
591	0	trc_feats[i].feat->log_level = lvl;
592	0	}
593	0	}
594
595		static CURLcode trc_opt(const char *config)
596	0	{
597	0	struct Curl_str out;
598	0	while(!curlx_str_until(&config, &out, 32, ',')) {
599	0	int lvl = CURL_LOG_LVL_INFO;
600	0	const char *token = curlx_str(&out);
601
602	0	if(*token == '-') {
603	0	lvl = CURL_LOG_LVL_NONE;
604	0	curlx_str_nudge(&out, 1);
605	0	}
606	0	else if(*token == '+')
607	0	curlx_str_nudge(&out, 1);
608
609	0	if(curlx_str_casecompare(&out, "all"))
610	0	trc_apply_level_by_category(TRC_CT_NONE, lvl);
611	0	else if(curlx_str_casecompare(&out, "protocol"))
612	0	trc_apply_level_by_category(TRC_CT_PROTOCOL, lvl);
613	0	else if(curlx_str_casecompare(&out, "network"))
614	0	trc_apply_level_by_category(TRC_CT_NETWORK, lvl);
615	0	else if(curlx_str_casecompare(&out, "proxy"))
616	0	trc_apply_level_by_category(TRC_CT_PROXY, lvl);
617	0	else if(curlx_str_casecompare(&out, "doh")) {
618	0	struct Curl_str dns = { "dns", 3 };
619	0	trc_apply_level_by_name(&dns, lvl);
620	0	}
621	0	else
622	0	trc_apply_level_by_name(&out, lvl);
623
624	0	if(curlx_str_single(&config, ','))
625	0	break;
626	0	}
627	0	return CURLE_OK;
628	0	}
629
630		CURLcode Curl_trc_opt(const char *config)
631	0	{
632	0	CURLcode result = config ? trc_opt(config) : CURLE_OK;
633		#ifdef DEBUGBUILD
634		/* CURL_DEBUG can override anything */
635		if(!result) {
636		const char *dbg_config = getenv("CURL_DEBUG");
637		if(dbg_config)
638		result = trc_opt(dbg_config);
639		}
640		#endif /* DEBUGBUILD */
641	0	return result;
642	0	}
643
644		CURLcode Curl_trc_init(void)
645	0	{
646		#ifdef DEBUGBUILD
647		return Curl_trc_opt(NULL);
648		#else
649	0	return CURLE_OK;
650	0	#endif
651	0	}
652
653		#else /* CURL_DISABLE_VERBOSE_STRINGS */
654
655		CURLcode Curl_trc_init(void)
656		{
657		return CURLE_OK;
658		}
659
660		void Curl_infof(struct Curl_easy data, const char fmt, ...)
661		{
662		(void)data;
663		(void)fmt;
664		}
665
666		void Curl_trc_cf_infof(struct Curl_easy data, const struct Curl_cfilter cf,
667		const char *fmt, ...)
668		{
669		(void)data;
670		(void)cf;
671		(void)fmt;
672		}
673
674		void Curl_trc_multi(struct Curl_easy data, const char fmt, ...)
675		{
676		(void)data;
677		(void)fmt;
678		}
679
680		void Curl_trc_write(struct Curl_easy data, const char fmt, ...)
681		{
682		(void)data;
683		(void)fmt;
684		}
685
686		void Curl_trc_dns(struct Curl_easy data, const char fmt, ...)
687		{
688		(void)data;
689		(void)fmt;
690		}
691
692		void Curl_trc_timer(struct Curl_easy data, int tid, const char fmt, ...)
693		{
694		(void)data;
695		(void)tid;
696		(void)fmt;
697		}
698
699		void Curl_trc_read(struct Curl_easy data, const char fmt, ...)
700		{
701		(void)data;
702		(void)fmt;
703		}
704
705		#ifndef CURL_DISABLE_FTP
706		void Curl_trc_ftp(struct Curl_easy data, const char fmt, ...)
707		{
708		(void)data;
709		(void)fmt;
710		}
711		#endif
712		#ifndef CURL_DISABLE_SMTP
713		void Curl_trc_smtp(struct Curl_easy data, const char fmt, ...)
714		{
715		(void)data;
716		(void)fmt;
717		}
718		#endif
719		#if !defined(CURL_DISABLE_WEBSOCKETS) && !defined(CURL_DISABLE_HTTP)
720		void Curl_trc_ws(struct Curl_easy data, const char fmt, ...)
721		{
722		(void)data;
723		(void)fmt;
724		}
725		#endif
726		#ifdef USE_SSH
727		void Curl_trc_ssh(struct Curl_easy data, const char fmt, ...)
728		{
729		(void)data;
730		(void)fmt;
731		}
732		#endif
733		#ifdef USE_SSL
734		void Curl_trc_ssls(struct Curl_easy data, const char fmt, ...)
735		{
736		(void)data;
737		(void)fmt;
738		}
739		#endif
740
741		#endif /* !CURL_DISABLE_VERBOSE_STRINGS */