curl_getenv(3) libcurl Manual curl_getenv(3)
NAME
curl_getenv - return value for environment name
SYNOPSIS
#include <curl/curl.h>
char *curl_getenv(const char *name);
DESCRIPTION
curl_getenv() is a portable wrapper for the getenv() function, meant to
emulate its behavior and provide an identical interface for all operat-
ing systems libcurl builds on (including win32).
You must curl_free(3) the returned string when you are done with it.
EXAMPLE
char *width = curl_getenv("COLUMNS");
if(width) {
/* it was set! */
curl_free(width);
}
AVAILABILITY
This function will be removed from the public libcurl API in a near fu-
ture. It will instead be made "available" by source code access only,
and then as curlx_getenv().
RETURN VALUE
A pointer to a null-terminated string or NULL if it failed to find the
specified name.
NOTE
Under unix operating systems, there is no point in returning an allo-
cated memory, although other systems will not work properly if this is
not done. The unix implementation thus has to suffer slightly from the
drawbacks of other systems.
SEE ALSO
getenv(3C),
libcurl 7.81.0 November 26, 2021 curl_getenv(3)
Generated by dwww version 1.14 on Fri Jan 24 09:32:23 CET 2025.