List number of files and directoriesv0.1.0-rc3

Sometimes, users want to know how many files and/or directories reside
on a directory. Now, slcl prints such information below the logout form.

1 files changed, 82 insertions, 23 deletions

diff --git a/page.c b/page.c
index 8cf24de..f3856a9 100644
--- a/page.c
+++ b/page.c
@@ -48,6 +48,11 @@
 #define MAXSIZEFMT "18446744073709551615.0 XiB"
 #define RM_FORM_ID "rm"
 
+struct element_stats
+{
+    unsigned long long n_dirs, n_files;
+};
+
 static int prepare_rm_checkbox(struct html_node *const n,
     const struct stat *const sb, const char *const name)
 {
@@ -334,7 +339,8 @@ end:
 }
 
 static int add_element(struct html_node *const n, const char *const dir,
-    const char *const res, const char *const name, const bool chbx)
+    const char *const res, const char *const name, const bool chbx,
+    struct element_stats *const st)
 {
     int ret = -1;
     enum {RM_CHECKBOX, NAME, SIZE, DATE, SHARE, PREVIEW, COLUMNS};
@@ -364,6 +370,7 @@ static int add_element(struct html_node *const n, const char *const dir,
         }
 
     struct stat sb;
+    const bool parentdir = !strcmp(name, "..");
 
     if (stat(path.str, &sb))
     {
@@ -371,7 +378,15 @@ static int add_element(struct html_node *const n, const char *const dir,
             __func__, path.str, strerror(errno));
         goto end;
     }
-    else if (chbx && strcmp(name, "..")
+    else if (st && !parentdir)
+    {
+        if (S_ISDIR(sb.st_mode))
+            st->n_dirs++;
+        else if (S_ISREG(sb.st_mode))
+            st->n_files++;
+    }
+
+    if (chbx && !parentdir
         && prepare_rm_checkbox(td[RM_CHECKBOX], &sb, name))
     {
         fprintf(stderr, "%s: prepare_rm_checkbox failed\n", __func__);
@@ -1036,11 +1051,12 @@ end:
 }
 
 static struct html_node *resource_layout(const char *const dir,
-    const struct page_quota *const q, struct html_node **const table)
+    const struct page_quota *const q, struct html_node **const body,
+    struct html_node **const table)
 {
     const char *const fdir = dir + strlen("/user");
     struct html_node *const html = html_node_alloc("html"),
-        *ret = NULL, *head, *body, *div;
+        *ret = NULL, *head, *div;
 
     if (!html)
     {
@@ -1052,12 +1068,12 @@ static struct html_node *resource_layout(const char *const dir,
         fprintf(stderr, "%s: html_node_add_child head failed\n", __func__);
         goto end;
     }
-    else if (!(body = html_node_add_child(html, "body")))
+    else if (!(*body = html_node_add_child(html, "body")))
     {
         fprintf(stderr, "%s: html_node_add_child body failed\n", __func__);
         goto end;
     }
-    else if (!(div = html_node_add_child(body, "div")))
+    else if (!(div = html_node_add_child(*body, "div")))
     {
         fprintf(stderr, "%s: html_node_add_child div failed\n", __func__);
         goto end;
@@ -1072,41 +1088,36 @@ static struct html_node *resource_layout(const char *const dir,
         fprintf(stderr, "%s: common_head failed\n", __func__);
         goto end;
     }
-    else if (prepare_search_form(body, fdir))
+    else if (prepare_search_form(*body, fdir))
     {
         fprintf(stderr, "%s: prepare_search_form failed\n", __func__);
         goto end;
     }
-    else if (prepare_upload_form(body, fdir))
+    else if (prepare_upload_form(*body, fdir))
     {
         fprintf(stderr, "%s: prepare_upload_form failed\n", __func__);
         goto end;
     }
-    else if (prepare_mkdir_form(body, fdir))
+    else if (prepare_mkdir_form(*body, fdir))
     {
         fprintf(stderr, "%s: prepare_upload_form failed\n", __func__);
         goto end;
     }
-    else if (prepare_rm_form(body, fdir))
+    else if (prepare_rm_form(*body, fdir))
     {
         fprintf(stderr, "%s: prepare_upload_form failed\n", __func__);
         goto end;
     }
-    else if (q && prepare_quota_form(body, q))
+    else if (q && prepare_quota_form(*body, q))
     {
         fprintf(stderr, "%s: prepare_quota_form failed\n", __func__);
         goto end;
     }
-    else if (prepare_logout_form(body))
+    else if (prepare_logout_form(*body))
     {
         fprintf(stderr, "%s: prepare_logout_form failed\n", __func__);
         goto end;
     }
-    else if (prepare_footer(body))
-    {
-        fprintf(stderr, "%s: prepare_footer failed\n", __func__);
-        goto end;
-    }
 
     ret = html;
 
@@ -1119,7 +1130,8 @@ end:
 }
 
 static int add_elements(const char *const root, const char *const res,
-    const char *const dir, struct html_node *const table)
+    const char *const dir, struct html_node *const table,
+    struct element_stats *const st)
 {
     int ret = -1;
     struct dirent **pde = NULL;
@@ -1131,6 +1143,8 @@ static int add_elements(const char *const root, const char *const res,
         goto end;
     }
 
+    *st = (const struct element_stats){0};
+
     for (int i = 0; i < n; i++)
     {
         const struct dirent *const de = pde[i];
@@ -1139,7 +1153,7 @@ static int add_elements(const char *const root, const char *const res,
         if (!strcmp(name, ".")
             || (!strcmp(name, "..") && !strcmp(root, res)))
             continue;
-        else if (add_element(table, dir, res, name, true))
+        else if (add_element(table, dir, res, name, true, st))
         {
             fprintf(stderr, "%s: add_element failed\n", __func__);
             goto end;
@@ -1157,12 +1171,47 @@ end:
     return ret;
 }
 
+static int prepare_element_stats(struct html_node *const n,
+    const struct element_stats *const st)
+{
+    int ret = -1;
+    struct html_node *const p = html_node_add_child(n, "div");
+    struct dynstr d;
+
+    dynstr_init(&d);
+
+    if (!p)
+    {
+        fprintf(stderr, "%s: html_node_add_child failed\n", __func__);
+        goto end;
+    }
+    else if (dynstr_append(&d, "%llu directories, %llu files",
+        st->n_dirs, st->n_files))
+    {
+        fprintf(stderr, "%s: dynstr_append failed\n", __func__);
+        goto end;
+    }
+    else if (html_node_set_value(p, d.str))
+    {
+        fprintf(stderr, "%s: html_node_set_value failed\n", __func__);
+        goto end;
+    }
+
+    ret = 0;
+
+end:
+    dynstr_free(&d);
+    return ret;
+}
+
+
 static int list_dir(const struct page_resource *const pr)
 {
     int ret = -1;
     struct dynstr out;
-    struct html_node *table,
-        *const html = resource_layout(pr->dir, pr->q, &table);
+    struct html_node *table, *body,
+        *const html = resource_layout(pr->dir, pr->q, &body, &table);
+    struct element_stats st;
 
     dynstr_init(&out);
 
@@ -1171,11 +1220,21 @@ static int list_dir(const struct page_resource *const pr)
         fprintf(stderr, "%s: resource_layout failed\n", __func__);
         goto end;
     }
-    else if (add_elements(pr->root, pr->res, pr->dir, table))
+    else if (add_elements(pr->root, pr->res, pr->dir, table, &st))
     {
         fprintf(stderr, "%s: read_elements failed\n", __func__);
         goto end;
     }
+    else if (prepare_element_stats(body, &st))
+    {
+        fprintf(stderr, "%s: prepare_element_stats failed\n", __func__);
+        goto end;
+    }
+    else if (prepare_footer(body))
+    {
+        fprintf(stderr, "%s: prepare_footer failed\n", __func__);
+        goto end;
+    }
     else if (dynstr_append(&out, DOCTYPE_TAG))
     {
         fprintf(stderr, "%s: dynstr_prepend failed\n", __func__);
@@ -1757,7 +1816,7 @@ static int add_search_results(struct html_node *const n,
     {
         const struct page_search_result *const r = &s->results[i];
 
-        if (add_element(table, "/user/", s->root, r->name, false))
+        if (add_element(table, "/user/", s->root, r->name, false, NULL))
         {
             fprintf(stderr, "%s: add_element failed\n", __func__);
             return -1;