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windows: use _strdup() instead of strdup() where missing

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To replace deprecated `strdup()` CRT calls with the recommended
`_strdup()`.

Refs:
https://learn.microsoft.com/cpp/c-runtime-library/reference/strdup-wcsdup
https://learn.microsoft.com/cpp/c-runtime-library/reference/strdup-wcsdup-mbsdup

Closes #19794
This commit is contained in:
Viktor Szakats 2025-12-01 19:49:50 +01:00
parent a3fcd80de4
commit 5356bce6ab
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5 changed files with 14 additions and 8 deletions
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3
lib/curl_setup.h
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@ -91,8 +91,7 @@
#pragma warning(disable:4127)
/* Avoid VS2005 and upper complaining about portable C functions. */
#ifndef _CRT_NONSTDC_NO_DEPRECATE /* mingw-w64 v2+. MS SDK ~10+/~VS2017+. */
#define _CRT_NONSTDC_NO_DEPRECATE /* for close(), fileno(), strdup(),
unlink(), etc. */
#define _CRT_NONSTDC_NO_DEPRECATE /* for close(), fileno(), unlink(), etc. */
#endif
#ifndef _CRT_SECURE_NO_WARNINGS
#define _CRT_SECURE_NO_WARNINGS /* for getenv(), gmtime(), strcpy(),

4
lib/easy.c
View file

@ -103,7 +103,11 @@ static curl_simple_lock s_lock = CURL_SIMPLE_LOCK_INIT;
* so the callback pointer is initialized correctly.
*/
#ifdef HAVE_STRDUP
#ifdef _WIN32
#define system_strdup _strdup
#else
#define system_strdup strdup
#endif
#else
#define system_strdup Curl_strdup
#endif