purge nonsensical code, and use buffers instead

Signed-off-by: Pierre Habouzit <madcoder@debian.org>

diff --git a/nntp.c b/nntp.c
index 9796e8c..364475e 100644 (file)
--- a/nntp.c
+++ b/nntp.c
@@ -29,11 +29,24 @@
 
 static int nntp_get_cache_all (NNTP_SERVER *);
 static int nntp_check_newgroups (NNTP_SERVER *, int);
-static void mutt_newsgroup_stat (nntp_data_t *);
 static void nntp_delete_cache (nntp_data_t *);
 
 /* newsrc {{{ */
 
+static void mutt_newsgroup_stat(nntp_data_t *data)
+{
+    data->unread = 0;
+    if (data->lastMessage == 0 || data->firstMessage > data->lastMessage)
+        return;
+
+    data->unread = data->lastMessage - data->firstMessage + 1;
+    for (int i = 0; i < data->num; i++) {
+        int first = MAX(data->entries[i].first, data->firstMessage);
+        int last  = MIN(data->entries[i].last,  data->lastMessage);
+        data->unread -= MAX(0, last - first + 1);
+    }
+}
+
 static int nntp_parse_newsrc_line (NNTP_SERVER * news, char *line)
 {
   nntp_data_t *data;
@@ -391,120 +404,52 @@ NNTP_SERVER *mutt_select_newsserver (char *server)
  * "skipped" in the newsrc, and new is anything not in the newsrc nor
  * in the cache. By skipped, I mean before the last unread message
  */
-static void nntp_get_status(CONTEXT *ctx, HEADER *h, char *group, int article)
+static void
+nntp_get_status(CONTEXT *ctx, HEADER *h, const char *group, int article)
 {
-  nntp_data_t *data = (nntp_data_t *) ctx->data;
-  int x;
-
-  if (group)
-    data = (nntp_data_t *) hash_find (data->nserv->newsgroups, group);
-
-  if (!data) {
-    return;
-  }
-
-  for (x = 0; x < data->num; x++) {
-    if ((article >= data->entries[x].first) &&
-        (article <= data->entries[x].last)) {
-      /* we cannot use mutt_set_flag() because mx_update_context()
-         didn't called yet */
-      h->read = 1;
-      return;
+    nntp_data_t *data = ctx->data;
+
+    if (group)
+        data = hash_find(data->nserv->newsgroups, group);
+    if (!data)
+        return;
+
+    for (int i = 0; i < data->num; i++) {
+        if ((article >= data->entries[i].first) &&
+            (article <= data->entries[i].last))
+        {
+            /* we cannot use mutt_set_flag() because mx_update_context()
+               didn't called yet */
+            h->read = 1;
+            return;
+        }
     }
-  }
-  /* If article was not cached yet, it is new! :) */
-  if (!data->cache || article > data->lastCached)
-    return;
-  /* Old articles are articles which aren't read but an article after them
-   * has been cached */
-  if (option (OPTMARKOLD))
-    h->old = 1;
-}
 
-static void mutt_newsgroup_stat (nntp_data_t * data)
-{
-  int i, first, last;
+    /* If article was not cached yet, it is new! :) */
+    if (!data->cache || article > data->lastCached)
+        return;
 
-  data->unread = 0;
-  if (data->lastMessage == 0 || data->firstMessage > data->lastMessage)
-    return;
-
-  data->unread = data->lastMessage - data->firstMessage + 1;
-  for (i = 0; i < data->num; i++) {
-    first = data->entries[i].first;
-    if (first < data->firstMessage)
-      first = data->firstMessage;
-    last = data->entries[i].last;
-    if (last > data->lastMessage)
-      last = data->lastMessage;
-    if (first <= last)
-      data->unread -= last - first + 1;
-  }
+    /* Old articles are articles which aren't read but an article after them
+     * has been cached */
+    if (option(OPTMARKOLD))
+        h->old = 1;
 }
 
-static int puti (char *line, int num)
+static void nntp_create_newsrc_line(nntp_data_t *data, buffer_t *buf)
 {
-  char *p, s[32];
-
-  for (p = s; num;) {
-    *p++ = '0' + num % 10;
-    num /= 10;
-  }
-  while (p > s)
-    *line++ = *--p, num++;
-  *line = '\0';
-  return num;
-}
+    buffer_addstr(buf, data->group);
+    buffer_addch(buf, data->subscribed ? ':' : '!');
+    buffer_addch(buf, ' ');
 
-static void nntp_create_newsrc_line (nntp_data_t * data, char **buf,
-                                     char **pline, ssize_t * buflen)
-{
-  char *line = *pline;
-  ssize_t len = *buflen - (*pline - *buf);
-  int x, i;
-
-  if (len < LONG_STRING * 10) {
-    len += *buflen;
-    *buflen *= 2;
-    line = *buf;
-    p_realloc(buf, *buflen);
-    line = *buf + (*pline - line);
-  }
-  strcpy (line, data->group);
-  len -= m_strlen(line) + 1;
-  line += m_strlen(line);
-  *line++ = data->subscribed ? ':' : '!';
-  *line++ = ' ';
-  *line = '\0';
-
-  for (x = 0; x < data->num; x++) {
-    if (len < LONG_STRING) {
-      len += *buflen;
-      *buflen *= 2;
-      *pline = line;
-      line = *buf;
-      p_realloc(buf, *buflen);
-      line = *buf + (*pline - line);
-    }
-    if (x) {
-      *line++ = ',';
-      len--;
-    }
+    for (int x = 0; x < data->num; x++) {
+        if (x) {
+            buffer_addch(buf, ',');
+        }
 
-    i = puti (line, data->entries[x].first);
-    line += i;
-    len -= i;
-    if (data->entries[x].first != data->entries[x].last) {
-      *line++ = '-';
-      len--;
-      i = puti (line, data->entries[x].last);
-      line += i;
-      len -= i;
+        buffer_addf(buf, "%d-%d", data->entries[x].first,
+                    data->entries[x].last);
     }
-  }
-  *line++ = '\n';
-  *line = '\0';
-  *pline = line;
+    buffer_addch(buf, '\n');
 }
 
 static void newsrc_gen_entries (CONTEXT * ctx)
@@ -577,7 +522,8 @@ static void newsrc_gen_entries (CONTEXT * ctx)
 }
 
 static int mutt_update_list_file (char *filename, char *section,
-                                  const char *key, char *line) {
+                                  const char *key, const char *line)
+{
   FILE *ifp;
   FILE *ofp;
   char buf[HUGE_STRING];
@@ -688,33 +634,34 @@ static int mutt_update_list_file (char *filename, char *section,
 
 int mutt_newsrc_update (NNTP_SERVER * news)
 {
-  char *buf, *line;
-  nntp_data_t *data;
-  int r = -1;
-  ssize_t len, llen;
+    buffer_t buf;
+    nntp_data_t *data;
+    int r = -1;
 
-  if (!news)
-    return -1;
-  llen = len = 10 * LONG_STRING;
-  line = buf = p_new(char, len);
-  /* we will generate full newsrc here */
-  for (data = news->list; data; data = data->next) {
-    if (!data || !data->rc)
-      continue;
-    nntp_create_newsrc_line (data, &buf, &line, &llen);
-    line += m_strlen(line);
-  }
-  /* newrc being fully rewritten */
-  if (news->newsrc &&
-      (r = mutt_update_list_file(news->newsrc, NULL, "", buf)) == 0) {
-    struct stat st;
+    if (!news)
+        return -1;
 
-    stat (news->newsrc, &st);
-    news->size = st.st_size;
-    news->mtime = st.st_mtime;
-  }
-  p_delete(&buf);
-  return r;
+    buffer_init(&buf);
+
+    /* we will generate full newsrc here */
+    for (data = news->list; data; data = data->next) {
+        if (!data || !data->rc)
+            continue;
+        nntp_create_newsrc_line(data, &buf);
+    }
+    /* newrc being fully rewritten */
+    if (news->newsrc
+    &&  (r = mutt_update_list_file(news->newsrc, NULL, "", buf.data)) == 0)
+    {
+        struct stat st;
+
+        stat (news->newsrc, &st);
+        news->size = st.st_size;
+        news->mtime = st.st_mtime;
+    }
+
+    buffer_wipe(&buf);
+    return r;
 }
 
 static FILE *mutt_mkname (char *s)
@@ -1574,7 +1521,6 @@ static int nntp_parse_xover (CONTEXT * ctx, char *buf, HEADER * hdr)
     p++;
     switch (x) {
     case 0:
-
       hdr->article_num = atoi (b);
       nntp_get_status (ctx, hdr, NULL, hdr->article_num);
       break;