MINOR: sample: add the sha1 converter
This converter can be used to generate a SHA1 digest from binary type
sample. The result is a binary sample with length of 20 bytes.
diff --git a/doc/configuration.txt b/doc/configuration.txt
index ed3f3f6..818931e 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -12912,6 +12912,10 @@
This prefix is followed by a name. The separator is a '.'. The name may only
contain characters 'a-z', 'A-Z', '0-9', '.' and '_'.
+sha1
+ Converts a binary input sample to a SHA1 digest. The result is a binary
+ sample with length of 20 bytes.
+
sub(<value>)
Subtracts <value> from the input value of type signed integer, and returns
the result as an signed integer. Note: in order to subtract the input from
diff --git a/src/sample.c b/src/sample.c
index 28a5fcb..6b767a1 100644
--- a/src/sample.c
+++ b/src/sample.c
@@ -33,6 +33,7 @@
#include <proto/stick_table.h>
#include <proto/vars.h>
+#include <import/sha1.h>
#include <import/xxhash.h>
/* sample type names */
@@ -1504,6 +1505,24 @@
return 1;
}
+static int sample_conv_sha1(const struct arg *arg_p, struct sample *smp, void *private)
+{
+ blk_SHA_CTX ctx;
+ struct chunk *trash = get_trash_chunk();
+
+ memset(&ctx, 0, sizeof(ctx));
+
+ blk_SHA1_Init(&ctx);
+ blk_SHA1_Update(&ctx, smp->data.u.str.str, smp->data.u.str.len);
+ blk_SHA1_Final((unsigned char *)trash->str, &ctx);
+
+ trash->len = 20;
+ smp->data.u.str = *trash;
+ smp->data.type = SMP_T_BIN;
+ smp->flags &= ~SMP_F_CONST;
+ return 1;
+}
+
static int sample_conv_bin2hex(const struct arg *arg_p, struct sample *smp, void *private)
{
struct chunk *trash = get_trash_chunk();
@@ -2756,6 +2775,7 @@
{ "field", sample_conv_field, ARG2(2,SINT,STR), sample_conv_field_check, SMP_T_STR, SMP_T_STR },
{ "word", sample_conv_word, ARG2(2,SINT,STR), sample_conv_field_check, SMP_T_STR, SMP_T_STR },
{ "regsub", sample_conv_regsub, ARG3(2,REG,STR,STR), sample_conv_regsub_check, SMP_T_STR, SMP_T_STR },
+ { "sha1", sample_conv_sha1, 0, NULL, SMP_T_BIN, SMP_T_BIN },
{ "and", sample_conv_binary_and, ARG1(1,STR), check_operator, SMP_T_SINT, SMP_T_SINT },
{ "or", sample_conv_binary_or, ARG1(1,STR), check_operator, SMP_T_SINT, SMP_T_SINT },