GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/lotus/securec/sscanf_s.c

@@ -0,0 +1,48 @@
+/*
+ * 
+ */
+
+#include "linux/lotus/securec.h"
+
+/*
+ * <FUNCTION DESCRIPTION>
+ *    The sscanf_s function is equivalent to fscanf_s,
+ *     except that input is obtained from a string (specified by the argument buffer) rather than from a stream
+ *    The sscanf function reads data from buffer into the location given by each
+ *    argument. Every argument must be a pointer to a variable with a type that
+ *    corresponds to a type specifier in format. The format argument controls the
+ *    interpretation of the input fields and has the same form and function as
+ *    the format argument for the scanf function.
+ *    If copying takes place between strings that overlap, the behavior is undefined.
+ *
+ * <INPUT PARAMETERS>
+ *    buffer                 Stored data.
+ *    format                 Format control string, see Format Specifications.
+ *    ...                    Optional arguments.
+ *
+ * <OUTPUT PARAMETERS>
+ *    ...                    The converted value stored in user assigned address
+ *
+ * <RETURN VALUE>
+ *    Each of these functions returns the number of fields successfully converted
+ *    and assigned; the return value does not include fields that were read but
+ *    not assigned.
+ *    A return value of 0 indicates that no fields were assigned.
+ *    return -1 if an error occurs.
+ */
+int sscanf_s(const char *buffer, const char *format, ...)
+{
+    int ret;                    /* If initialization causes  e838 */
+    va_list argList;
+
+    va_start(argList, format);
+    ret = vsscanf_s(buffer, format, argList);
+    va_end(argList);
+    (void)argList;              /* To clear e438 last value assigned not used , the compiler will optimize this code */
+
+    return ret;
+}
+#if SECUREC_IN_KERNEL
+EXPORT_SYMBOL(sscanf_s);
+#endif
+