X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/e69e7a5cd492b55ef5c230bae5ba26bd989df65f..c4db59aa4b58bca9cd146ae30f507c16218a67d7:/sbr/m_getfld.c

diff --git a/sbr/m_getfld.c b/sbr/m_getfld.c
index a1f8c31d..0fe55499 100644
--- a/sbr/m_getfld.c
+++ b/sbr/m_getfld.c
@@ -228,7 +228,7 @@ struct m_getfld_state {
     char *end;  /* One past the last character read in. */
     /* The following support tracking of the read position in the
        input file stream so that callers can interleave m_getfld()
-       calls with ftell() and fseek().  ytes_read replaces the old
+       calls with ftell() and fseek().  bytes_read replaces the old
        m_getfld() msg_count global.  last_caller_pos is stored when
        leaving m_getfld()/m_unknown(), then checked on the next entry.
        last_internal_pos is used to remember the position used
@@ -245,10 +245,10 @@ struct m_getfld_state {
      * The "full" delimiter string for a packed maildrop consists
      * of a newline followed by the actual delimiter.  E.g., the
      * full string for a Unix maildrop would be: "\n\nFrom ".
-     * "Fdelim" points to the start of the full string and is used
+     * "fdelim" points to the start of the full string and is used
      * in the BODY case of the main routine to search the buffer for
      * a possible eom.  Msg_delim points to the first character of
-     * the actual delim. string (i.e., fdelim+1).  Edelim
+     * the actual delim. string (i.e., fdelim+1).  edelim
      * points to the 2nd character of actual delimiter string.  It
      * is used in m_Eom because the first character of the string
      * has been read and matched before m_Eom is called.
@@ -268,7 +268,8 @@ void
 m_getfld_state_init (m_getfld_state_t *gstate, FILE *iob) {
     m_getfld_state_t s;
 
-    s = *gstate = (m_getfld_state_t) mh_xmalloc(sizeof (struct m_getfld_state));
+    NEW(s);
+    *gstate = s;
     s->readpos = s->end = s->msg_buf;
     s->bytes_read = s->total_bytes_read = 0;
     s->last_caller_pos = s->last_internal_pos = 0;
@@ -450,12 +451,12 @@ read_more (m_getfld_state_t s) {
    but EOF is typically 0xffffffff. */
 static int
 Getc (m_getfld_state_t s) {
-    if (s->end - s->readpos < 1  &&  read_more (s) == 0) {
+    if ((s->end - s->readpos < 1 && read_more (s) == 0) ||
+        s->readpos >= s->end)
         return EOF;
-    } else {
-        ++s->bytes_read;
-        return s->readpos < s->end  ?  (unsigned char) *s->readpos++  :  EOF;
-    }
+
+    s->bytes_read++;
+    return (unsigned char)*s->readpos++;
 }
 
 static int
@@ -489,17 +490,17 @@ m_getfld (m_getfld_state_t *gstate, char name[NAMESZ], char *buf, int *bufsz,
     enter_getfld (gstate, iob);
     s = *gstate;
 
-    if ((c = Getc(s)) < 0) {
+    if ((c = Getc(s)) == EOF) {
 	*bufsz = *buf = 0;
 	leave_getfld (s);
 	return s->state = FILEEOF;
     }
     if (eom (c, s)) {
 	/* flush null messages */
-	while ((c = Getc(s)) >= 0 && eom (c, s))
+	while ((c = Getc(s)) != EOF && eom (c, s))
 	    ;
 
-	if (c >= 0)
+	if (c != EOF)
 	    Ungetc(c, s);
 	*bufsz = *buf = 0;
 	leave_getfld (s);
@@ -510,13 +511,14 @@ m_getfld (m_getfld_state_t *gstate, char name[NAMESZ], char *buf, int *bufsz,
 	case FLD:
 	    if (c == '\n' || c == '-') {
 		/* we hit the header/body separator */
-		while (c != '\n' && (c = Getc(s)) >= 0) continue;
+		while (c != '\n' && (c = Getc(s)) != EOF)
+                    ;
 
-		if (c < 0 || (c = Getc(s)) < 0 || eom (c, s)) {
+		if (c == EOF || (c = Getc(s)) == EOF || eom (c, s)) {
 		    /* flush null messages */
-		    while ((c = Getc(s)) >= 0 && eom (c, s))
+		    while ((c = Getc(s)) != EOF && eom (c, s))
 			;
-		    if (c >= 0)
+		    if (c != EOF)
 			Ungetc(c, s);
 		    *bufsz = *buf = 0;
 		    leave_getfld (s);
@@ -797,7 +799,8 @@ m_unknown(m_getfld_state_t *gstate, FILE *iob)
     if (i == sizeof from-1  &&  strncmp (text, "From ", sizeof from-1) == 0) {
 	s->msg_style = MS_MBOX;
 	delimstr = "\nFrom ";
-	while ((c = Getc (s)) != '\n' && c >= 0) continue;
+	while ((c = Getc(s)) != EOF && c != '\n')
+            ;
     } else {
 	/* not a Unix style maildrop */
 	s->readpos -= s->bytes_read;
@@ -830,9 +833,9 @@ m_unknown(m_getfld_state_t *gstate, FILE *iob)
 
     if (s->msg_style == MS_MMDF) {
 	/* flush extra msg hdrs */
-	while ((c = Getc(s)) >= 0 && eom (c, s))
+	while ((c = Getc(s)) != EOF && eom (c, s))
 	    ;
-	if (c >= 0)
+	if (c != EOF)
 	    Ungetc(c, s);
     }
 
@@ -880,9 +883,8 @@ m_Eom (m_getfld_state_t s)
 
     if (s->msg_style == MS_MBOX) {
 	int c;
-	while ((c = Getc (s)) != '\n')
-	    if (c < 0)
-		break;
+	while ((c = Getc(s)) != EOF && c != '\n')
+            ;
     }
 
     return 1;