lsfd: introduce fopenf helper function

Signed-off-by: Masatake YAMATO <yamato@redhat.com>

diff --git a/misc-utils/lsfd.c b/misc-utils/lsfd.c
index 5a8b222bd63f7689e077fd0ba813c23e9ec5675d..3b2a668341b6780284575a11d408cfc9a2b23364 100644 (file)
--- a/misc-utils/lsfd.c
+++ b/misc-utils/lsfd.c
@@ -874,3 +874,17 @@ DIR *opendirf(const char *format, ...)
 
        return opendir(path);
 }
+
+FILE *fopenf(const char *mode, const char *format, ...)
+{
+       va_list ap;
+       char path[PATH_MAX];
+
+       memset(path, 0, sizeof(path));
+
+       va_start(ap, format);
+       vsprintf(path, format, ap);
+       va_end(ap);
+
+       return fopen(path, mode);
+}

diff --git a/misc-utils/lsfd.h b/misc-utils/lsfd.h
index 88a5fbf5ce477d6bc57e4d98d77262812ced9d28..99037c5d0fea1c3b220b0e66367326421ce84941 100644 (file)
--- a/misc-utils/lsfd.h
+++ b/misc-utils/lsfd.h
@@ -46,6 +46,7 @@
        } while (0)
 
 DIR *opendirf(const char *format, ...) __attribute__((format (printf, 1, 2)));
+FILE *fopenf(const char *mode, const char *format, ...) __attribute__((format (printf, 2, 3)));
 
 /*
  * column IDs