strbuf: add xstrdup_toupper()

diff --git a/strbuf.c b/strbuf.c
index 29169b8ef8b75a6638b5594501b95dee3e1f4b4b..a20af696bc8cf9ca0bf6730c7db1b1021d79e185 100644 (file)
--- a/strbuf.c
+++ b/strbuf.c
@@ -408,12 +408,15 @@ ssize_t strbuf_read(struct strbuf *sb, int fd, size_t hint)
 
 ssize_t strbuf_read_once(struct strbuf *sb, int fd, size_t hint)
 {
+       size_t oldalloc = sb->alloc;
        ssize_t cnt;
 
        strbuf_grow(sb, hint ? hint : 8192);
        cnt = xread(fd, sb->buf + sb->len, sb->alloc - sb->len - 1);
        if (cnt > 0)
                strbuf_setlen(sb, sb->len + cnt);
+       else if (oldalloc == 0)
+               strbuf_release(sb);
        return cnt;
 }
 
@@ -778,7 +781,18 @@ char *xstrdup_tolower(const char *string)
        result = xmallocz(len);
        for (i = 0; i < len; i++)
                result[i] = tolower(string[i]);
-       result[i] = '\0';
+       return result;
+}
+
+char *xstrdup_toupper(const char *string)
+{
+       char *result;
+       size_t len, i;
+
+       len = strlen(string);
+       result = xmallocz(len);
+       for (i = 0; i < len; i++)
+               result[i] = toupper(string[i]);
        return result;
 }