Set hidden visibility for calls used in lttng-ctl

[lttng-tools.git] / src / common / utils.c

diff --git a/src/common/utils.c b/src/common/utils.c
index bc9b2db3fcc0caf379464b271d22b570f115d9e0..781888eb351d1ff720b13826706c3cd41812a51c 100644 (file)
--- a/src/common/utils.c
+++ b/src/common/utils.c
@@ -32,6 +32,7 @@
  * /tmp/test1 does, the real path is returned. In normal time, realpath(3)
  * fails if the end point directory does not exist.
  */
+__attribute__((visibility("hidden")))
 char *utils_expand_path(const char *path)
 {
        const char *end_path = path;
@@ -70,7 +71,7 @@ char *utils_expand_path(const char *path)
        }
 
        /* Add end part to expanded path */
-       strncat(expanded_path, end_path, PATH_MAX);
+       strncat(expanded_path, end_path, PATH_MAX - strlen(expanded_path) - 1);
 
        free(cut_path);
        return expanded_path;
@@ -84,6 +85,7 @@ error:
 /*
  * Create a pipe in dst.
  */
+__attribute__((visibility("hidden")))
 int utils_create_pipe(int *dst)
 {
        int ret;
@@ -106,6 +108,7 @@ int utils_create_pipe(int *dst)
  * Make sure the pipe opened by this function are closed at some point. Use
  * utils_close_pipe().
  */
+__attribute__((visibility("hidden")))
 int utils_create_pipe_cloexec(int *dst)
 {
        int ret, i;
@@ -134,6 +137,7 @@ error:
 /*
  * Close both read and write side of the pipe.
  */
+__attribute__((visibility("hidden")))
 void utils_close_pipe(int *src)
 {
        int i, ret;
@@ -154,3 +158,24 @@ void utils_close_pipe(int *src)
                }
        }
 }
+
+/*
+ * Create a new string using two strings range.
+ */
+__attribute__((visibility("hidden")))
+char *utils_strdupdelim(const char *begin, const char *end)
+{
+       char *str;
+
+       str = zmalloc(end - begin + 1);
+       if (str == NULL) {
+               PERROR("zmalloc strdupdelim");
+               goto error;
+       }
+
+       memcpy(str, begin, end - begin);
+       str[end - begin] = '\0';
+
+error:
+       return str;
+}