show-branch: use a strbuf for reflog descriptions

diff --git a/builtin/show-branch.c b/builtin/show-branch.c
index 199b081e9b805cceb1f2097f2d33966e5f8ff167..9e60b12445f9e9a3d203404e0ba5a1cdc39b29ec 100644 (file)
--- a/builtin/show-branch.c
+++ b/builtin/show-branch.c
@@ -720,7 +720,6 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
 
        if (reflog) {
                unsigned char sha1[20];
-               char nth_desc[256];
                char *ref;
                int base = 0;
                unsigned int flags = 0;
@@ -728,7 +727,9 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
                if (ac == 0) {
                        static const char *fake_av[2];
 
-                       fake_av[0] = resolve_refdup("HEAD", sha1, 1, NULL);
+                       fake_av[0] = resolve_refdup("HEAD",
+                                                   RESOLVE_REF_READING,
+                                                   sha1, NULL);
                        fake_av[1] = NULL;
                        av = fake_av;
                        ac = 1;
@@ -757,6 +758,7 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
 
                for (i = 0; i < reflog; i++) {
                        char *logmsg;
+                       char *nth_desc;
                        const char *msg;
                        unsigned long timestamp;
                        int tz;
@@ -775,8 +777,10 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
                                                show_date(timestamp, tz, 1),
                                                msg);
                        free(logmsg);
-                       sprintf(nth_desc, "%s@{%d}", *av, base+i);
+
+                       nth_desc = xstrfmt("%s@{%d}", *av, base+i);
                        append_ref(nth_desc, sha1, 1);
+                       free(nth_desc);
                }
                free(ref);
        }
@@ -789,7 +793,8 @@ int cmd_show_branch(int ac, const char **av, const char *prefix)
                }
        }
 
-       head_p = resolve_ref_unsafe("HEAD", head_sha1, 1, NULL);
+       head_p = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING,
+                                   head_sha1, NULL);
        if (head_p) {
                head_len = strlen(head_p);
                memcpy(head, head_p, head_len + 1);