regex: use regexec_buf()

diff --git a/builtin/help.c b/builtin/help.c
index 1cd0c1ee44daf056befb8a26bba2f4fd343c8658..3c55ce456309ee7da95eac0517f11161ab3c1f7c 100644 (file)
--- a/builtin/help.c
+++ b/builtin/help.c
@@ -171,12 +171,10 @@ static void exec_man_cmd(const char *cmd, const char *page)
 static void add_man_viewer(const char *name)
 {
        struct man_viewer_list **p = &man_viewer_list;
-       size_t len = strlen(name);
 
        while (*p)
                p = &((*p)->next);
-       *p = xcalloc(1, (sizeof(**p) + len + 1));
-       memcpy((*p)->name, name, len); /* NUL-terminated by xcalloc */
+       FLEX_ALLOC_STR(*p, name, name);
 }
 
 static int supported_man_viewer(const char *name, size_t len)
@@ -190,9 +188,8 @@ static void do_add_man_viewer_info(const char *name,
                                   size_t len,
                                   const char *value)
 {
-       struct man_viewer_info_list *new = xcalloc(1, sizeof(*new) + len + 1);
-
-       memcpy(new->name, name, len); /* NUL-terminated by xcalloc */
+       struct man_viewer_info_list *new;
+       FLEX_ALLOC_MEM(new, name, name, len);
        new->info = xstrdup(value);
        new->next = man_viewer_info_list;
        man_viewer_info_list = new;