Port new net_id capabilities from systemd-udev-197

Signed-off-by: Anthony G. Basile <blueness@gentoo.org>

2 files changed, 20 insertions, 0 deletions

diff --git a/src/libudev/libudev-private.h b/src/libudev/libudev-private.h
index 5b7f0021e9..1b86384703 100644
--- a/src/libudev/libudev-private.h
+++ b/src/libudev/libudev-private.h
@@ -165,6 +165,7 @@ int util_log_priority(const char *priority);
 size_t util_path_encode(const char *src, char *dest, size_t size);
 void util_remove_trailing_chars(char *path, char c);
 size_t util_strpcpy(char **dest, size_t size, const char *src);
+size_t util_strpcpyf(char **dest, size_t size, const char *src, ...) __attribute__((format(printf, 3, 4)));
 size_t util_strpcpyl(char **dest, size_t size, const char *src, ...) __attribute__((sentinel));
 size_t util_strscpy(char *dest, size_t size, const char *src);
 size_t util_strscpyl(char *dest, size_t size, const char *src, ...) __attribute__((sentinel));
diff --git a/src/libudev/libudev-util.c b/src/libudev/libudev-util.c
index d3bbd05927..0ca86c815d 100644
--- a/src/libudev/libudev-util.c
+++ b/src/libudev/libudev-util.c
@@ -334,6 +334,25 @@ size_t util_strpcpy(char **dest, size_t size, const char *src)
         return size;
 }
 
+size_t util_strpcpyf(char **dest, size_t size, const char *src, ...)
+{
+        va_list va;
+        int i;
+
+        va_start(va, src);
+        i = vsnprintf(*dest, size, src, va);
+        if (i < (int)size) {
+                *dest += i;
+                size -= i;
+        } else {
+                *dest += size;
+                size = 0;
+        }
+        va_end(va);
+        *dest[0] = '\0';
+        return size;
+}
+
 /* concatenates list of strings, moves dest forward */
 size_t util_strpcpyl(char **dest, size_t size, const char *src, ...)
 {