[Nmh-workers] [PATCH] Simplify dodir/addir/addfold in uip/folder.c

=== modified file 'ChangeLog'
--- ChangeLog   2008-08-04 01:47:56 +0000
+++ ChangeLog   2008-08-04 23:50:29 +0000
@@ -1,3 +1,7 @@
+2008-08-04  Eric Gillespie  <epg(_at_)pretzelnet(_dot_)org>
+
+       * uip/folder.c: Simplify dodir/addir/addfold.
+
 2008-08-03  Peter Maydell  
<pmaydell(_at_)chiark(_dot_)greenend(_dot_)org(_dot_)uk>
 
        * test/setup-test: use 'set -e' so we stop on compile failure.

=== modified file 'uip/folder.c'
--- uip/folder.c        2007-11-04 11:54:32 +0000
+++ uip/folder.c        2008-08-04 23:32:34 +0000
@@ -419,7 +419,6 @@
     int i;
     int os = start;
     int of = foldp;
-    char buffer[BUFSIZ];
 
     start = foldp;
 
@@ -427,7 +426,7 @@
     if (chdir (nmhdir) == NOTOK)
        adios (nmhdir, "unable to change directory to");
 
-    addir (strncpy (buffer, dir, sizeof(buffer)));
+    addir (dir);
 
     for (i = start; i < foldp; i++) {
        get_folder_info (folds[i], NULL);
@@ -667,21 +666,11 @@
 addir (char *name)
 {
     int nlink;
-    char *base, *cp;
+    char *prefix, *child;
     struct stat st;
     struct dirent *dp;
     DIR * dd;
 
-    cp = name + strlen (name);
-    *cp++ = '/';
-    *cp = '\0';
-
-    /*
-     * A hack to skip over a leading
-     * "./" in folder names.
-     */
-    base = strcmp (name, "./") ? name : name + 2;
-
    /* short-cut to see if directory has any sub-directories */
     if (stat (name, &st) != -1 && st.st_nlink == 2)
         return;
@@ -691,6 +680,12 @@
        return;
     }
 
+    if (strcmp (name, ".") == 0) {
+       prefix = getcpy ("");
+    } else {
+       prefix = concat (name, "/", (void *)NULL);
+    }
+
     /*
      * Keep track of the number of directories we've seen
      * so we can quit stat'ing early, if we've seen them all.
@@ -702,22 +697,23 @@
            nlink--;
            continue;
        }
-       if (cp + NLENGTH(dp) + 2 >= name + BUFSIZ)
-           continue;
-       strcpy (cp, dp->d_name);
-       if (stat (name, &st) != -1 && S_ISDIR(st.st_mode)) {
+       child = concat (prefix, dp->d_name, (void *)NULL);
+       if (stat (child, &st) != -1 && S_ISDIR(st.st_mode)) {
            /*
             * Check if this was really a symbolic link pointing at
             * a directory.  If not, then decrement link count.
             */
-           if (lstat (name, &st) == -1)
+           if (lstat (child, &st) == -1)
                nlink--;
-           addfold (base);
+           /* addfold saves child in the list, don't free it */
+           addfold (child);
+       } else {
+           free (child);
        }
     }
 
     closedir (dd);
-    *--cp = '\0';
+    free(prefix);
 }
 
 /*
@@ -729,7 +725,6 @@
 addfold (char *fold)
 {
     register int i, j;
-    register char *cp;
 
     /* if necessary, reallocate the space for folder names */
     if (foldp >= maxfolders) {
@@ -737,17 +732,16 @@
        folds = mh_xrealloc (folds, maxfolders * sizeof(char *));
     }
 
-    cp = getcpy (fold);
     for (i = start; i < foldp; i++)
-       if (compare (cp, folds[i]) < 0) {
+       if (compare (fold, folds[i]) < 0) {
            for (j = foldp - 1; j >= i; j--)
                folds[j + 1] = folds[j];
            foldp++;
-           folds[i] = cp;
+           folds[i] = fold;
            return;
        }
 
-    folds[foldp++] = cp;
+    folds[foldp++] = fold;
 }
 
 



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