MINOR: sample: add hex converter
This new filter converts BIN type to its hexadecimal
representation in STR type. It is used to keep the
compatibility with the original bin2str cast.
It will be useful when bin2str changes to copy the
string as-is without encoding anymore.
diff --git a/src/sample.c b/src/sample.c
index 7f121b3..3812913 100644
--- a/src/sample.c
+++ b/src/sample.c
@@ -1089,6 +1089,23 @@
/* These functions set the data type on return. */
/*****************************************************************/
+static int sample_conv_bin2hex(const struct arg *arg_p, struct sample *smp)
+{
+ struct chunk *trash = get_trash_chunk();
+ unsigned char c;
+ int ptr = 0;
+
+ trash->len = 0;
+ while (ptr < smp->data.str.len && trash->len <= trash->size - 2) {
+ c = smp->data.str.str[ptr++];
+ trash->str[trash->len++] = hextab[(c >> 4) & 0xF];
+ trash->str[trash->len++] = hextab[c & 0xF];
+ }
+ smp->data.str = *trash;
+ smp->type = SMP_T_STR;
+ return 1;
+}
+
static int sample_conv_str2lower(const struct arg *arg_p, struct sample *smp)
{
int i;
@@ -1225,6 +1242,7 @@
static struct sample_conv_kw_list sample_conv_kws = {ILH, {
{ "upper", sample_conv_str2upper, 0, NULL, SMP_T_STR, SMP_T_STR },
{ "lower", sample_conv_str2lower, 0, NULL, SMP_T_STR, SMP_T_STR },
+ { "hex", sample_conv_bin2hex, 0, NULL, SMP_T_BIN, SMP_T_STR },
{ "ipmask", sample_conv_ipmask, ARG1(1,MSK4), NULL, SMP_T_IPV4, SMP_T_IPV4 },
{ NULL, NULL, 0, 0, 0 },
}};