sarman/tftsr-devops_investigation
1
1
Fork 0
Code Issues 4 Pull Requests Actions 34 Packages Projects 3 Releases 6 Wiki Activity

fix(build): add memset_explicit C shim for Windows MinGW libsodium linking #117

Merged
sarman merged 1 commits from fix/cargo-config-sodium into beta 2026-06-19 04:06:36 +00:00
Conversation 0 Commits 1 Files Changed 1 +8 -22
1 changed files with 8 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files
Showing only changes of commit b6ecd49b52 - Show all commits

30
src-tauri/memset_s_shim.c
View File

@ -1,28 +1,14 @@
// Shim for memset_explicit on MinGW which doesn't provide it
// This is needed for libsodium's secure memory clearing
#if defined(_WIN32) && defined(__MINGW32__)
/* memset_explicit shim for Windows MinGW
*
* libsodium-sys-stable expects memset_explicit which isn't available
* in the MinGW runtime. This provides a compatible implementation.
*/
#include <string.h>
// memset_explicit is available in Windows 8+ but MinGW headers don't always declare it
// Provide a fallback implementation using SecureZeroMemory if available,
// or a volatile memset to prevent compiler optimization
void *memset_explicit(void *s, int c, size_t n) {
// Try to use Windows API if available
#ifdef _WIN32_WINNT
#if _WIN32_WINNT >= 0x0602 // Windows 8+
extern void *memset_s(void *, size_t, int, size_t);
return memset_s(s, n, c, n);
#endif
#endif
// Fallback: use volatile to prevent optimization
volatile unsigned char *p = (volatile unsigned char *)s;
void memset_explicit(void *dest, int val, size_t n) {
volatile unsigned char *p = (volatile unsigned char *)dest;
while (n--) {
*p++ = (unsigned char)c;
*p++ = (unsigned char)val;
}
return s;
}
#endif