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Daniel Stenberg b935fd4a07

docs: make each libcurl man specify protocol(s)

The mandatory header now has a mandatory list of protocols for which the
manpage is relevant.

Most man pages already has a "PROTOCOLS" section, but this introduces a
stricter way to specify the relevant protocols.

cd2nroff verifies that at least one protocol is mentioned (which can be
`*`).

This information is not used just yet, but A) the PROTOCOLS section can
now instead get generated and get a unified wording across all manpages
and B) this allows us to more reliably filter/search for protocol
specific manpages/options.

Closes #13166

2024-03-21 15:27:06 +01:00

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SPDX-License-Identifier

Title

Section

Source

See-also

Protocol

curl

CURLOPT_FNMATCH_DATA

libcurl

CURLOPT_FNMATCH_FUNCTION (3)

CURLOPT_WILDCARDMATCH (3)

FTP

NAME

CURLOPT_FNMATCH_DATA - pointer passed to the fnmatch callback

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FNMATCH_DATA,
                          void *pointer);

DESCRIPTION

Pass a pointer that is untouched by libcurl and passed as the ptr argument to the CURLOPT_FNMATCH_FUNCTION(3).

DEFAULT

NULL

PROTOCOLS

FTP

EXAMPLE

extern int string_match(const char *s1, const char *s2);

struct local_stuff {
  void *custom;
};

static int my_fnmatch(void *clientp,
                      const char *pattern, const char *string)
{
  struct local_stuff *my = clientp;
  printf("my ptr: %p\n", my->custom);

  if(string_match(pattern, string))
    return CURL_FNMATCHFUNC_MATCH;
  else
    return CURL_FNMATCHFUNC_NOMATCH;
}

int main(void)
{
  struct local_stuff local_data;
  CURL *curl = curl_easy_init();
  if(curl) {
    curl_easy_setopt(curl, CURLOPT_URL, "ftp://ftp.example.com/file*");
    curl_easy_setopt(curl, CURLOPT_WILDCARDMATCH, 1L);
    curl_easy_setopt(curl, CURLOPT_FNMATCH_FUNCTION, my_fnmatch);
    curl_easy_setopt(curl, CURLOPT_FNMATCH_DATA, &local_data);

    curl_easy_perform(curl);
  }
}

AVAILABILITY

Added in 7.21.0

RETURN VALUE

Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

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