[#EVP_read_pw_string_min]
= EVP_read_pw_string_min
:mrdocs:

Prompt for a password with a minimum and maximum length.

== Synopsis

Declared in `<openssl/evp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
EVP_read_pw_string_min(
    char* buf,
    int minlen,
    int maxlen,
    char const* prompt,
    int verify);
----

== Return Value

0 on success, or a non‐zero value on failure / mismatch.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *buf*
| Output buffer receiving the password (NUL‐terminated).
| *minlen*
| Minimum acceptable password length in characters.
| *maxlen*
| Maximum length including space for the trailing NUL.
| *prompt*
| Prompt string shown to the user.
| *verify*
| When non‐zero, prompt twice and require matching input.
|===


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