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Add support for using printf-escaped strings in configuration 

P"<escaped string>" can now be used as an alternative method for
specifying non-ASCII strings (including control characters). For
example, ssid=P"abc\x00test".

Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2012-08-07 13:50:39 +03:00
parent 6bc1f95613
commit 5c4b93d72e
2 changed files with 29 additions and 2 deletions
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25
wpa_supplicant/config.c
View File

@ -68,6 +68,31 @@ static char * wpa_config_parse_string(const char *value, size_t *len)
return NULL;
os_memcpy(str, value, *len);
str[*len] = '\0';
return str;
} else if (*value == 'P' && value[1] == '"') {
const char *pos;
char *tstr, *str;
size_t tlen;
value += 2;
pos = os_strrchr(value, '"');
if (pos == NULL || pos[1] != '\0')
return NULL;
tlen = pos - value;
tstr = os_malloc(tlen + 1);
if (tstr == NULL)
return NULL;
os_memcpy(tstr, value, tlen);
tstr[tlen] = '\0';
str = os_malloc(tlen + 1);
if (str == NULL) {
os_free(tstr);
return NULL;
}
*len = printf_decode((u8 *) str, tlen + 1, tstr);
os_free(tstr);
return str;
} else {
u8 *str;

6
wpa_supplicant/wpa_supplicant.conf
View File

@ -406,8 +406,10 @@ fast_reauth=1
# to external action script through wpa_cli as WPA_ID_STR environment
# variable to make it easier to do network specific configuration.
#
# ssid: SSID (mandatory); either as an ASCII string with double quotation or
# as hex string; network name
# ssid: SSID (mandatory); network name in one of the optional formats:
# - an ASCII string with double quotation
# - a hex string (two characters per octet of SSID)
# - a printf-escaped ASCII string P"<escaped string>"
#
# scan_ssid:
# 0 = do not scan this SSID with specific Probe Request frames (default)