curl_getenv(3)

1curl_getenv(3)                  libcurl Manual                  curl_getenv(3)
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NAME

6       curl_getenv - return value for environment name
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SYNOPSIS

9       #include <curl/curl.h>
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11       char *curl_getenv(const char *name);
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DESCRIPTION

14       curl_getenv() is a portable wrapper for the getenv() function, meant to
15       emulate its behavior and provide an identical interface for all operat‐
16       ing systems libcurl builds on (including win32).
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18       You must curl_free(3) the returned string when you are done with it.
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EXAMPLE

21         char *width = curl_getenv("COLUMNS");
22         if(width) {
23           /* it was set! */
24           curl_free(width);
25         }
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AVAILABILITY

28       This function will be removed from the public libcurl API in a near fu‐
29       ture. It will instead be made "available" by source code  access  only,
30       and then as curlx_getenv().
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RETURN VALUE

33       A  pointer to a null-terminated string or NULL if it failed to find the
34       specified name.
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NOTE

37       Under unix operating systems, there is no point in returning  an  allo‐
38       cated  memory, although other systems will not work properly if this is
39       not done. The unix implementation thus has to suffer slightly from  the
40       drawbacks of other systems.
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