CURLOPT_WILDCARDMATCH
Section: curl_easy_setopt options (3)
Updated: November 04, 2020
Page Index
NAME
CURLOPT_WILDCARDMATCH - enable directory wildcard transfers
SYNOPSIS
#include <
curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_WILDCARDMATCH, long onoff);
DESCRIPTION
Set
onoff to 1 if you want to transfer multiple files according to a
file name pattern. The pattern can be specified as part of the
CURLOPT_URL(3) option, using an fnmatch-like pattern (Shell Pattern
Matching) in the last part of URL (file name).
By default, libcurl uses its internal wildcard matching implementation. You
can provide your own matching function by the
CURLOPT_FNMATCH_FUNCTION(3) option.
A brief introduction of its syntax follows:
-
- * - ASTERISK
-
ftp://example.com/some/path/*.txt (for all txt's from the root
directory). Only two asterisks are allowed within the same pattern string.
-
- ? - QUESTION MARK
-
Question mark matches any (exactly one) character.
ftp://example.com/some/path/photo?.jpeg
-
- [ - BRACKET EXPRESSION
-
The left bracket opens a bracket expression. The question mark and asterisk have
no special meaning in a bracket expression. Each bracket expression ends by the
right bracket and matches exactly one character. Some examples follow:
[a-zA-Z0-9] or [f-gF-G] - character interval
[abc] - character enumeration
[^abc] or [!abc] - negation
[[:name:]] class expression. Supported classes are
alnum,lower, space, alpha, digit, print,
upper, blank, graph, xdigit.
[][-!^] - special case - matches only '-', ']', '[', '!' or '^'. These
characters have no special purpose.
[\[\]\\] - escape syntax. Matches '[', ']' or '\'.
Using the rules above, a file name pattern can be constructed:
ftp://example.com/some/path/[a-z[:upper:]\\].jpeg
PROTOCOLS
This feature is only supported for FTP download.
EXAMPLE
See
https://curl.se/libcurl/c/ftp-wildcard.html
AVAILABILITY
Added in 7.21.0
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
SEE ALSO
CURLOPT_FNMATCH_FUNCTION(3),
CURLOPT_URL(3),