MINOR: sample: add htonl converter
This converter tranform a integer to its binary representation in the network
byte order. Integer are already automatically converted to binary during sample
expression evaluation. But because samples own 8-bytes integers, the conversion
produces 8 bytes. the htonl converter do the same but for 4-bytes integer.
diff --git a/doc/configuration.txt b/doc/configuration.txt
index 663f356..7c2d838 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -14119,6 +14119,12 @@
Converts a hex string containing two hex digits per input byte to an
integer. If the input value cannot be converted, then zero is returned.
+htonl
+ Converts the input integer value to its 32-bit binary representation in the
+ network byte order. Because sample fetches own signed 64-bit integer, when
+ this converter is used, the input integer value is first casted to an
+ unsigned 32-bit integer.
+
http_date([<offset],[<unit>])
Converts an integer supposed to contain a date since epoch to a string
representing this date in a format suitable for use in HTTP header fields. If
diff --git a/src/sample.c b/src/sample.c
index 6cf805a..c28b544 100644
--- a/src/sample.c
+++ b/src/sample.c
@@ -2962,6 +2962,23 @@
return 0;
}
+/**/
+static int sample_conv_htonl(const struct arg *arg_p, struct sample *smp, void *private)
+{
+ struct buffer *tmp;
+ uint32_t n;
+
+ n = htonl((uint32_t)smp->data.u.sint);
+ tmp = get_trash_chunk();
+
+ memcpy(b_head(tmp), &n, 4);
+ b_add(tmp, 4);
+
+ smp->data.u.str = *tmp;
+ smp->data.type = SMP_T_BIN;
+ return 1;
+}
+
/************************************************************************/
/* All supported sample fetch functions must be declared here */
/************************************************************************/
@@ -3430,6 +3447,7 @@
{ "mod", sample_conv_arith_mod, ARG1(1,STR), check_operator, SMP_T_SINT, SMP_T_SINT },
{ "neg", sample_conv_arith_neg, 0, NULL, SMP_T_SINT, SMP_T_SINT },
+ { "htonl", sample_conv_htonl, 0, NULL, SMP_T_SINT, SMP_T_BIN },
{ NULL, NULL, 0, 0, 0 },
}};