Change all Getc() callers to use EOF, not comparisons with 0.

Makes the logic that bit easier when you don't have to convert to EOF
mentally.  No functional change intended.

diff --git a/sbr/m_getfld.c b/sbr/m_getfld.c
index 3a6d50e..135be1d 100644 (file)
--- a/sbr/m_getfld.c
+++ b/sbr/m_getfld.c
@@ -489,17 +489,17 @@ m_getfld (m_getfld_state_t *gstate, char name[NAMESZ], char *buf, int *bufsz,
     enter_getfld (gstate, iob);
     s = *gstate;
 
     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 */
        *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);
            Ungetc(c, s);
        *bufsz = *buf = 0;
        leave_getfld (s);


@@ -510,13 +510,14 @@ 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 */
        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 */
                    /* 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);
                        Ungetc(c, s);
                    *bufsz = *buf = 0;
                    leave_getfld (s);


@@ -797,7 +798,8 @@ 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 ";
     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;
     } else {
        /* not a Unix style maildrop */
        s->readpos -= s->bytes_read;


@@ -830,9 +832,9 @@ m_unknown(m_getfld_state_t *gstate, FILE *iob)
 
     if (s->msg_style == MS_MMDF) {
        /* flush extra msg hdrs */
 
     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);
     }
 
            Ungetc(c, s);
     }
 


@@ -880,9 +882,8 @@ m_Eom (m_getfld_state_t s)
 
     if (s->msg_style == MS_MBOX) {
        int c;
 
     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;
     }
 
     return 1;