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Use printf escaping in SSID-to-printable-string conversion

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Instead of masking out non-ASCII characters with underscores, espace the
SSID data using rules compatible with printf.

Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2012-08-07 13:32:57 +03:00
parent 0d7773b63f
commit 6bc1f95613
1 changed files with 6 additions and 9 deletions
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15
src/utils/common.c
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@ -489,17 +489,14 @@ size_t printf_decode(u8 *buf, size_t maxlen, const char *str)
*/
const char * wpa_ssid_txt(const u8 *ssid, size_t ssid_len)
{
static char ssid_txt[33];
char *pos;
static char ssid_txt[32 * 4 + 1];
if (ssid_len > 32)
ssid_len = 32;
os_memcpy(ssid_txt, ssid, ssid_len);
ssid_txt[ssid_len] = '\0';
for (pos = ssid_txt; *pos != '\0'; pos++) {
if ((u8) *pos < 32 || (u8) *pos >= 127)
*pos = '_';
if (ssid == NULL) {
ssid_txt[0] = '\0';
return ssid_txt;
}
printf_encode(ssid_txt, sizeof(ssid_txt), ssid, ssid_len);
return ssid_txt;
}