[taler-exchange] branch master updated: add new TALER_MHD_parse_request_arg_snumber function to libtalermhd

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grothoff pushed a commit to branch master
in repository exchange.

The following commit(s) were added to refs/heads/master by this push:
     new 200bbfbe add new TALER_MHD_parse_request_arg_snumber function to 
libtalermhd
200bbfbe is described below

commit 200bbfbefda8c67ec5196d7384b32e9fa33c4bb7
Author: Christian Grothoff <christian@grothoff.org>
AuthorDate: Mon Mar 18 23:08:17 2024 +0100

    add new TALER_MHD_parse_request_arg_snumber function to libtalermhd
---
 src/include/taler_mhd_lib.h | 44 ++++++++++++++++++++++++++++++++++++++++++++
 src/mhd/Makefile.am         |  2 +-
 src/mhd/mhd_parsing.c       | 36 ++++++++++++++++++++++++++++++++++++
 3 files changed, 81 insertions(+), 1 deletion(-)

diff --git a/src/include/taler_mhd_lib.h b/src/include/taler_mhd_lib.h
index c16772bf..d93bc1e1 100644
--- a/src/include/taler_mhd_lib.h
+++ b/src/include/taler_mhd_lib.h
@@ -521,6 +521,50 @@ TALER_MHD_parse_request_arg_number (struct MHD_Connection 
*connection,
   } while (0)
 
 
+/**
+ * Extract optional signed numeric limit argument from request.
+ *
+ * @param connection the MHD connection
+ * @param name name of the query parameter
+ * @param[out] val set to the signed value, unchanged if the
+ *             option was not given
+ * @return #GNUNET_OK on success,
+ *         #GNUNET_NO if an error was returned on @a connection (caller should 
return #MHD_YES) and
+ *     #GNUNET_SYSERR if we failed to return an error (caller should return 
#MHD_NO)
+ */
+enum GNUNET_GenericReturnValue
+TALER_MHD_parse_request_arg_snumber (struct MHD_Connection *connection,
+                                     const char *name,
+                                     int64_t *val);
+
+
+/**
+ * Extract optional numeric argument from request.
+ * Macro that *returns* #MHD_YES/#MHD_NO if the
+ * requested argument existed but failed to parse.
+ *
+ * @param connection the MHD connection
+ * @param name name of the argument to parse
+ * @param[out] val set to the given numeric value,
+ *    unchanged if value was not specified
+ */
+#define TALER_MHD_parse_request_snumber(connection,name,val)  \
+  do {                                                         \
+    switch (TALER_MHD_parse_request_arg_snumber (connection,   \
+                                                 name, \
+                                                 val))  \
+    {                      \
+    case GNUNET_SYSERR:    \
+      GNUNET_break (0);    \
+      return MHD_NO;       \
+    case GNUNET_NO:        \
+      GNUNET_break_op (0); \
+    case GNUNET_OK:        \
+      break;               \
+    }                      \
+  } while (0)
+
+
 /**
  * Extract optional amount argument from request.
  *
diff --git a/src/mhd/Makefile.am b/src/mhd/Makefile.am
index 1e3c4939..d36bba42 100644
--- a/src/mhd/Makefile.am
+++ b/src/mhd/Makefile.am
@@ -16,7 +16,7 @@ libtalermhd_la_SOURCES = \
   mhd_responses.c \
   mhd_run.c
 libtalermhd_la_LDFLAGS = \
-  -version-info 1:0:1 \
+  -version-info 2:0:2 \
   -no-undefined
 libtalermhd_la_LIBADD = \
   $(top_builddir)/src/json/libtalerjson.la \
diff --git a/src/mhd/mhd_parsing.c b/src/mhd/mhd_parsing.c
index 1e8258f5..2c3312cf 100644
--- a/src/mhd/mhd_parsing.c
+++ b/src/mhd/mhd_parsing.c
@@ -245,6 +245,42 @@ TALER_MHD_parse_request_arg_number (struct MHD_Connection 
*connection,
 }
 
 
+enum GNUNET_GenericReturnValue
+TALER_MHD_parse_request_arg_snumber (struct MHD_Connection *connection,
+                                     const char *name,
+                                     int64_t *val)
+{
+  const char *ts;
+  char dummy;
+  long long num;
+
+  ts = MHD_lookup_connection_value (connection,
+                                    MHD_GET_ARGUMENT_KIND,
+                                    name);
+  if (NULL == ts)
+    return GNUNET_OK;
+  if (1 !=
+      sscanf (ts,
+              "%lld%c",
+              &num,
+              &dummy))
+  {
+    MHD_RESULT mret;
+
+    GNUNET_break_op (0);
+    mret = TALER_MHD_reply_with_error (connection,
+                                       MHD_HTTP_BAD_REQUEST,
+                                       TALER_EC_GENERIC_PARAMETER_MALFORMED,
+                                       name);
+    return (MHD_YES == mret)
+      ? GNUNET_NO
+      : GNUNET_SYSERR;
+  }
+  *val = (int64_t) num;
+  return GNUNET_OK;
+}
+
+
 enum GNUNET_GenericReturnValue
 TALER_MHD_parse_request_arg_amount (struct MHD_Connection *connection,
                                     const char *name,

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