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Add support for multiline badpass_message #419

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Add support for multiline badpass_message #419

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56 changes: 54 additions & 2 deletions plugins/sudoers/auth/sudo_auth.c
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Original file line number Diff line number Diff line change
Expand Up @@ -223,6 +223,56 @@ sudo_auth_cleanup(const struct sudoers_context *ctx, struct passwd *pw,
debug_return_int(AUTH_SUCCESS);
}


static void
convert_str(char *str) {
char *src = str;
char *dst = str;

while (*src) {
if (src[0] == '\\')
{
switch (src[1])
{
case 'a':
*dst = '\a';
src += 2;
break;
case 'b':
*dst = '\b';
src += 2;
break;
case 'v':
*dst = '\v';
src += 2;
break;
case 'f':
*dst = '\f';
src += 2;
break;
case 'n':
*dst = '\n';
src += 2;
break;
case 'e':
*dst = '\033';
src += 2;
break;
default:
src++;
break;
}
}
else
{
*dst = *src;
src++;
}
dst++;
}
*dst = '\0';
}

static void
pass_warn(void)
{
Expand All @@ -233,8 +283,10 @@ pass_warn(void)
if (def_insults)
warning = _(INSULT);
#endif
sudo_printf(SUDO_CONV_ERROR_MSG|SUDO_CONV_PREFER_TTY, "%s\n", warning);

char *second_warning = strdup(warning);
convert_str(second_warning);
sudo_printf(SUDO_CONV_ERROR_MSG|SUDO_CONV_PREFER_TTY, "%s\n", second_warning);
free(second_warning);
debug_return;
}

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