diff options
Diffstat (limited to 'src/common/compat.c')
| -rw-r--r-- | src/common/compat.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/common/compat.c b/src/common/compat.c index 8da7ef3f69..701027523e 100644 --- a/src/common/compat.c +++ b/src/common/compat.c @@ -67,6 +67,9 @@ #ifdef HAVE_CRT_EXTERNS_H #include <crt_externs.h> #endif +#ifdef HAVE_READPASSPHRASE_H +#include <readpassphrase.h> +#endif #ifndef HAVE_GETTIMEOFDAY #ifdef HAVE_FTIME @@ -3242,3 +3245,33 @@ tor_sleep_msec(int msec) } #endif +/** Emit the password prompt <b>prompt</b>, then read up to <b>buflen</b> + * characters of passphrase into <b>output</b>. */ +ssize_t +tor_getpass(const char *prompt, char *output, size_t buflen) +{ + tor_assert(buflen <= SSIZE_MAX); +#if defined(HAVE_READPASSPHRASE) + char *pwd = readpassphrase(prompt, output, buflen, RPP_ECHO_OFF); + if (pwd == NULL) + return -1; + return strlen(pwd); +#elif defined(HAVE_GETPASS) + /* XXX We shouldn't actually use this; it's deprecated to hell and back */ + memset(output, 0, buflen); + char *pwd = getpass(prompt); + if (pwd == NULL) + return -1; + ssize_t len = (ssize_t)strlen(pwd); + strlcpy(output, pwd, buflen); + memset(pwd, 0, len); + return len; +#else + /* XXX This is even worse. */ + puts(prompt); + ssize_t n = read(STDIN_FILENO, output, buflen); + if (n < 0) + return -1; + return n; +#endif +} |