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[mod_accesslog] Fix escaping of quotes and backslashes

personal/stbuehler/wip
Thomas Porzelt 2009-10-16 18:34:22 +02:00
parent 114451639a
commit 22d5b62336
1 changed files with 21 additions and 16 deletions
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37
src/modules/mod_accesslog.c
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@ -125,25 +125,30 @@ static void al_append_escaped(GString *log, GString *str) {
/* replaces non-printable chars with \xHH where HH is the hex representation of the byte */
/* exceptions: " => \", \ => \\, whitespace chars => \n \t etc. */
for (guint i = 0; i < str->len; i++) {
if (str->str[i] == '"') {
g_string_append_len(log, CONST_STR_LEN("\""));
} else if (str->str[i] >= ' ' && str->str[i] <= '~') {
if (str->str[i] >= ' ' && str->str[i] <= '~') {
/* printable chars */
g_string_append_c(log, str->str[i]);
} else if (str->str[i] == '\n') {
g_string_append_len(log, CONST_STR_LEN("\\n"));
} else if (str->str[i] == '\r') {
g_string_append_len(log, CONST_STR_LEN("\\r"));
} else if (str->str[i] == '\t') {
g_string_append_len(log, CONST_STR_LEN("\\t"));
} else {
/* non printable char => \xHH */
gchar hh[5] = {'\\','x',0,0,0};
gchar h = str->str[i] / 16;
hh[2] = (h > 9) ? (h - 10 + 'A') : (h + '0');
h = str->str[i] % 16;
hh[3] = (h > 9) ? (h - 10 + 'A') : (h + '0');
g_string_append_len(log, &hh[0], 4);
switch (str->str[i]) {
case '"': g_string_append_len(log, CONST_STR_LEN("\\\"")); break;
case '\\': g_string_append_len(log, CONST_STR_LEN("\\\\")); break;
case '\b': g_string_append_len(log, CONST_STR_LEN("\\b")); break;
case '\n': g_string_append_len(log, CONST_STR_LEN("\\n")); break;
case '\r': g_string_append_len(log, CONST_STR_LEN("\\r")); break;
case '\t': g_string_append_len(log, CONST_STR_LEN("\\t")); break;
case '\v': g_string_append_len(log, CONST_STR_LEN("\\v")); break;
default:
{
/* non printable char => \xHH */
gchar hh[5] = {'\\','x',0,0,0};
gchar h = str->str[i] / 16;
hh[2] = (h > 9) ? (h - 10 + 'A') : (h + '0');
h = str->str[i] % 16;
hh[3] = (h > 9) ? (h - 10 + 'A') : (h + '0');
g_string_append_len(log, &hh[0], 4);
}
break;
}
}
}
}