Improve code

Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>

src/file.c

@@ -192,12 +192,12 @@ bool detect_file_operation(uint8_t *buf, int len, int sid, struct file_context *
 
     memcpy(&pid, buf + 4, 4);
 
-    if (!getuid_pid(pid, &uid)) {
+    if (!getuid_by_pid(pid, &uid)) {
         kill(pid, SIGTERM);
         return true;
     }
 
-    if (!getgid_pid(pid, &gid)) {
+    if (!getgid_by_pid(pid, &gid)) {
         kill(pid, SIGTERM);
         return true;
     }
@@ -228,7 +228,7 @@ bool detect_file_operation(uint8_t *buf, int len, int sid, struct file_context *
         send_file_control_msg(ctlfd, RTTY_FILE_MSG_REQUEST_ACCEPT, NULL, 0);
 
         memset(savepath, 0, sizeof(savepath));
-        getcwd_pid(pid, savepath, sizeof(savepath) - 1);
+        getcwd_by_pid(pid, savepath, sizeof(savepath) - 1);
         strcat(savepath, "/");
 
         ctx->uid = uid;

src/utils.c

@@ -160,7 +160,7 @@ struct mntent *find_mount_point(const char *name)
  *  getcwd_pid does not append a null byte to buf.  It will (silently) truncate the contents (to
  *  a length of bufsiz characters), in case the buffer is too small to hold all of the contents.
  */
-ssize_t getcwd_pid(pid_t pid, char *buf, size_t bufsiz)
+ssize_t getcwd_by_pid(pid_t pid, char *buf, size_t bufsiz)
 {
     char link[128];
 
@@ -169,7 +169,7 @@ ssize_t getcwd_pid(pid_t pid, char *buf, size_t bufsiz)
     return readlink(link, buf, bufsiz);
 }
 
-bool getuid_pid(pid_t pid, uid_t *uid)
+bool getuid_by_pid(pid_t pid, uid_t *uid)
 {
     char status[128];
     char line[128];
@@ -196,7 +196,7 @@ bool getuid_pid(pid_t pid, uid_t *uid)
     return true;
 }
 
-bool getgid_pid(pid_t pid, gid_t *gid)
+bool getgid_by_pid(pid_t pid, gid_t *gid)
 {
     char status[128];
     char line[128];

src/utils.h

@@ -38,10 +38,10 @@ const char *format_size(size_t size);
 
 struct mntent *find_mount_point(const char *name);
 
-ssize_t getcwd_pid(pid_t pid, char *buf, size_t bufsiz);
+ssize_t getcwd_by_pid(pid_t pid, char *buf, size_t bufsiz);
 
-bool getuid_pid(pid_t pid, uid_t *uid);
+bool getuid_by_pid(pid_t pid, uid_t *uid);
 
-bool getgid_pid(pid_t pid, gid_t *gid);
+bool getgid_by_pid(pid_t pid, gid_t *gid);
 
 #endif