2 files changed, 42 insertions, 0 deletions
diff --git a/myfind/user_belong/Makefile b/myfind/user_belong/Makefile
new file mode 100644
index 0000000..ca37a55
--- /dev/null
+++ b/myfind/user_belong/Makefile
@@ -0,0 +1,17 @@
+CC = gcc CFLAGS = -std = c99 - pedantic - Werror - Wall - Wextra
+    - Wvla
+
+        SRC = user_belong.c OBJ = $(SRC
+                                    :.c =.o)
+
+                                      all
+    : $(OBJ) $(CC)
+      - o user_belong $(OBJ)
+
+            $(OBJ)
+    : $(SRC)
+
+          .PHONY
+    : clean
+
+          clean : $(RM) $(OBJ) user_belong
diff --git a/myfind/user_belong/user_belong.c b/myfind/user_belong/user_belong.c
new file mode 100644
index 0000000..bb7332a
--- /dev/null
+++ b/myfind/user_belong/user_belong.c
@@ -0,0 +1,25 @@
+#include <pwd.h>
+#include <stdio.h>
+#include <sys/stat.h>
+
+int main(int argc, char **argv)
+{
+    if (argc != 3)
+        return 2;
+
+    struct passwd *p = getpwnam(argv[2]);
+    if (!p)
+    {
+        printf("user %s does not exist\n", argv[2]);
+        return 0;
+    }
+    struct stat s;
+    stat(argv[1], &s);
+
+    printf("%s does ", argv[1]);
+    if (s.st_uid != p->pw_uid)
+        printf("not ");
+    printf("belong to user %s\n", argv[2]);
+
+    return 0;
+}