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[ssh-keygen] fix fido2 key filename translation on Windows #826

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Merged
tgauth merged 2 commits into from
Jan 9, 2026
Merged

[ssh-keygen] fix fido2 key filename translation on Windows #826

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7d2bc87
replace colon in filename with underscore
tgauth Jan 7, 2026
abd9ef7
Update ssh-keygen.c
tgauth Jan 7, 2026
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6 changes: 6 additions & 0 deletions ssh-keygen.c
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Original file line number Diff line number Diff line change
Expand Up @@ -3210,6 +3210,12 @@ sk_suffix(const char *application, const uint8_t *user, size_t userlen)
else
ret = xstrdup(application);

#ifdef WINDOWS
/* replace any additional colons with underscores so filename is valid */
while ((cp = strchr(ret, ':')) != NULL)
*cp = '_';
#endif

/* Count trailing zeros in user */
for (i = 0; i < userlen; i++) {
if (user[userlen - i - 1] != 0)
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