os: drop unused Xscnprintf() and Xvscnprintf()

Not used anywhere (not even in drivers), so no need to keep them anymore.

Signed-off-by: Enrico Weigelt, metux IT consult <[email protected]>

Author: metux

include/Xprintf.h

@@ -55,16 +55,4 @@ extern _X_EXPORT int
 XNFvasprintf(char **ret, const char *_X_RESTRICT_KYWD fmt, va_list va)
 _X_ATTRIBUTE_PRINTF(2, 0);
 
-/*
- * These functions provide a portable implementation of the linux kernel
- * scnprintf & vscnprintf routines that return the number of bytes actually
- * copied during a snprintf, (excluding the final '\0').
- */
-extern _X_EXPORT int
-Xscnprintf(char *s, int n, const char * _X_RESTRICT_KYWD fmt, ...)
-_X_ATTRIBUTE_PRINTF(3,4);
-extern _X_EXPORT int
-Xvscnprintf(char *s, int n, const char * _X_RESTRICT_KYWD fmt, va_list va)
-_X_ATTRIBUTE_PRINTF(3,0);
-
 #endif                          /* XPRINTF_H */

os/xprintf.c

@@ -111,47 +111,3 @@ XNFasprintf(char **ret, const char *_X_RESTRICT_KYWD format, ...)
     va_end(va);
     return size;
 }
-
-/**
- * Varargs snprintf that returns the actual number of bytes (excluding final
- * '\0') that were copied into the buffer.
- * This is opposed to the normal sprintf() usually returns the number of bytes
- * that would have been written.
- *
- * @param s       buffer to copy into
- * @param n       size of buffer s
- * @param format  printf style format string
- * @param va      variable argument list
- * @return        number of bytes actually copied, excluding final '\0'
- */
-int
-Xvscnprintf(char *s, int n, const char *format, va_list args)
-{
-    int x;
-    if (n == 0)
-        return 0;
-    x = vsnprintf(s, n , format, args);
-    return (x >= n) ? (n - 1) : x;
-}
-
-/**
- * snprintf that returns the actual number of bytes (excluding final '\0') that
- * were copied into the buffer.
- * This is opposed to the normal sprintf() usually returns the number of bytes
- * that would have been written.
- *
- * @param s       buffer to copy into
- * @param n       size of buffer s
- * @param format  printf style format string
- * @param ...     arguments for specified format
- * @return        number of bytes actually copied, excluding final '\0'
- */
-int Xscnprintf(char *s, int n, const char *format, ...)
-{
-    int x;
-    va_list ap;
-    va_start(ap, format);
-    x = Xvscnprintf(s, n, format, ap);
-    va_end(ap);
-    return x;
-}