X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/1691e80890e5d8ba258c51c214a3e91880e1db2b..3910a511d4d9ad19e5eeff769881f4e52f498947:/sbr/seq_read.c

diff --git a/sbr/seq_read.c b/sbr/seq_read.c
index 649a360e..759dba49 100644
--- a/sbr/seq_read.c
+++ b/sbr/seq_read.c
@@ -3,49 +3,53 @@
  * seq_read.c -- read the .mh_sequence file and
  *            -- initialize sequence information
  *
- * $Id$
+ * This code is Copyright (c) 2002, by the authors of nmh.  See the
+ * COPYRIGHT file in the root directory of the nmh distribution for
+ * complete copyright information.
  */
 
 #include <h/mh.h>
+#include <h/utils.h>
 
 /*
  * static prototypes
  */
 static int seq_init (struct msgs *, char *, char *);
-static void seq_public (struct msgs *);
+static int seq_public (struct msgs *, int, int *);
 static void seq_private (struct msgs *);
 
 
 /*
  * Get the sequence information for this folder from
- * .mh_sequence (or equivalent specified in .mh_profile)
+ * .mh_sequences (or equivalent specified in .mh_profile)
  * or context file (for private sequences).
  */
 
-void
-seq_read (struct msgs *mp)
+int
+seq_read (struct msgs *mp, int lockflag)
 {
-    /* sanity check - check that context has been read */
-    if (defpath == NULL)
-	adios (NULL, "oops, context hasn't been read yet");
+    int failed_to_lock = 0;
 
     /*
      * Initialize the list of sequence names.  Go ahead and
      * add the "cur" sequence to the list of sequences.
      */
-    mp->msgattrs[0] = getcpy (current);
-    mp->msgattrs[1] = NULL;
+    svector_push_back (mp->msgattrs, getcpy (current));
     make_all_public (mp);	/* initially, make all public */
 
     /* If folder is empty, don't scan for sequence information */
     if (mp->nummsg == 0)
-	return;
+	return OK;
 
     /* Initialize the public sequences */
-    seq_public (mp);
+    if (seq_public (mp, lockflag, &failed_to_lock) == NOTOK) {
+	if (failed_to_lock) return NOTOK;
+    }
 
     /* Initialize the private sequences */
     seq_private (mp);
+
+    return OK;
 }
 
 
@@ -53,39 +57,41 @@ seq_read (struct msgs *mp)
  * read folder's sequences file for public sequences
  */
 
-static void
-seq_public (struct msgs *mp)
+static int
+seq_public (struct msgs *mp, int lockflag, int *failed_to_lock)
 {
     int state;
     char *cp, seqfile[PATH_MAX];
     char name[NAMESZ], field[BUFSIZ];
     FILE *fp;
+    m_getfld_state_t gstate = 0;
 
     /*
-     * If mh_seq == NULL (such as if nmh been compiled with
-     * NOPUBLICSEQ), or if *mh_seq == '\0' (the user has defined
+     * If mh_seq == NULL or if *mh_seq == '\0' (the user has defined
      * the "mh-sequences" profile entry, but left it empty),
      * then just return, and do not initialize any public sequences.
      */
     if (mh_seq == NULL || *mh_seq == '\0')
-	return;
+	return OK;
 
     /* get filename of sequence file */
     snprintf (seqfile, sizeof(seqfile), "%s/%s", mp->foldpath, mh_seq);
 
-    if ((fp = fopen (seqfile, "r")) == NULL)
-	return;
+    if ((fp = lkfopendata (seqfile, lockflag ? "r+" : "r", failed_to_lock))
+	== NULL)
+	return NOTOK;
 
     /* Use m_getfld to scan sequence file */
-    for (state = FLD;;) {
-	switch (state = m_getfld (state, name, field, sizeof(field), fp)) {
+    for (;;) {
+	int fieldsz = sizeof field;
+	switch (state = m_getfld (&gstate, name, field, &fieldsz, fp)) {
 	    case FLD: 
 	    case FLDPLUS:
-	    case FLDEOF: 
 		if (state == FLDPLUS) {
 		    cp = getcpy (field);
 		    while (state == FLDPLUS) {
-			state = m_getfld (state, name, field, sizeof(field), fp);
+			fieldsz = sizeof field;
+			state = m_getfld (&gstate, name, field, &fieldsz, fp);
 			cp = add (field, cp);
 		    }
 		    seq_init (mp, getcpy (name), trimcpy (cp));
@@ -93,12 +99,10 @@ seq_public (struct msgs *mp)
 		} else {
 		    seq_init (mp, getcpy (name), trimcpy (field));
 		}
-		if (state == FLDEOF)
-		    break;
 		continue;
 
-	    case BODY: 
-	    case BODYEOF: 
+	    case BODY:
+	    	lkfclosedata (fp, seqfile);
 		adios (NULL, "no blank lines are permitted in %s", seqfile);
 		/* fall */
 
@@ -106,12 +110,21 @@ seq_public (struct msgs *mp)
 		break;
 
 	    default: 
+	    	lkfclosedata (fp, seqfile);
 		adios (NULL, "%s is poorly formatted", seqfile);
 	}
 	break;	/* break from for loop */
     }
+    m_getfld_state_destroy (&gstate);
+
+    if (lockflag) {
+	mp->seqhandle = fp;
+	mp->seqname = getcpy(seqfile);
+    } else {
+	lkfclosedata (fp, seqfile);
+    }
 
-    fclose (fp);
+    return OK;
 }
 
 
@@ -159,7 +172,8 @@ seq_private (struct msgs *mp)
 static int
 seq_init (struct msgs *mp, char *name, char *field)
 {
-    int i, j, k, is_current;
+    unsigned int i;
+    int j, k, is_current;
     char *cp, **ap;
 
     /*
@@ -172,32 +186,24 @@ seq_init (struct msgs *mp, char *name, char *field)
      * Search for this sequence name to see if we've seen
      * it already.  If we've seen this sequence before,
      * then clear the bit for this sequence from all the
-     * mesages in this folder.
+     * messages in this folder.
      */
-    for (i = 0; mp->msgattrs[i]; i++) {
-	if (!strcmp (mp->msgattrs[i], name)) {
+    for (i = 0; i < svector_size (mp->msgattrs); i++) {
+	if (!strcmp (svector_at (mp->msgattrs, i), name)) {
 	    for (j = mp->lowmsg; j <= mp->hghmsg; j++)
 		clear_sequence (mp, i, j);
 	    break;
 	}
     }
 
-    /* Return error, if too many sequences */
-    if (i >= NUMATTRS) {
-	free (name);
-	free (field);
-	return -1;
-    }
-
     /*
      * If we've already seen this sequence name, just free the
      * name string.  Else add it to the list of sequence names.
      */
-    if (mp->msgattrs[i]) {
+    if (svector_at (mp->msgattrs, i)) {
 	free (name);
     } else {
-	mp->msgattrs[i] = name;
-	mp->msgattrs[i + 1] = NULL;
+	svector_push_back (mp->msgattrs, name);
     }
 
     /*