Fix invalid pointer arithmetic.

[nmh] / sbr / fmt_compile.c

diff --git a/sbr/fmt_compile.c b/sbr/fmt_compile.c
index 389e16c491d62460dfa602e0e094e88b223e8bf9..2ad46cf57e9d7efe13c8b4d1ba6d06359e5641fa 100644 (file)
--- a/sbr/fmt_compile.c
+++ b/sbr/fmt_compile.c
@@ -35,7 +35,7 @@
  *
  * - Add code to fmttest.c to display your new function.
  *
- * - Document the new function in the mh-format(5) man page.
+ * - Document the new function in mh-format(5).
  *
  */
 
@@ -46,6 +46,7 @@
 #include <h/fmt_compile.h>
 #include <h/mts.h>
 #include <h/utils.h>
+#include "terminal.h"
 
 #ifdef HAVE_SYS_TIME_H
 # include <sys/time.h>
@@ -279,11 +280,12 @@ static struct colormap colortable[] = {
 /*
  * Find a component in the hash table.
  */
-#define FINDCOMP(comp,name) \
-               for (comp = wantcomp[CHASH(name)]; \
-                    comp && strcmp(comp->c_name,name); \
-                    comp = comp->c_next) \
-               ;
+#define FINDCOMP(comp,name) do { \
+        for (comp = wantcomp[CHASH(name)]; \
+            comp && strcmp(comp->c_name,name); \
+            comp = comp->c_next) \
+        ; \
+    } while (0)
 
 /* Add new component to the hash table */
 #define NEWCOMP(cm,name) do { \
@@ -350,11 +352,11 @@ lookup(char *name)
 
     while ((nm = t->name)) {
        if (*nm == c && strcmp (nm, name) == 0)
-           return (ftbl = t);
+           return ftbl = t;
 
        t++;
     }
-    return (struct ftable *) 0;
+    return NULL;
 }
 
 
@@ -417,7 +419,7 @@ fmt_compile(char *fstring, struct format **fmt, int reset_comptable)
     *fmt = formatvec;
 
     free(format_string);
-    return (ncomp);
+    return ncomp;
 }
 
 static char *
@@ -442,7 +444,7 @@ compile (char *sp)
            break;
        }
        if (c == 0)
-           return (cp);
+           return cp;
 
        switch (c = *++cp) {
        case '%':
@@ -454,7 +456,7 @@ compile (char *sp)
        case '>':
        case '?':
        case ']':
-           return (cp);
+           return cp;
 
        case '<':
            cp = do_if(++cp);
@@ -486,9 +488,7 @@ do_spec(char *sp)
 {
     char *cp = sp;
     int c;
-#ifndef        lint
     int ljust = 0;
-#endif /* not lint */
     int wid = 0;
     char fill = ' ';
 
@@ -529,7 +529,7 @@ do_spec(char *sp)
     fp->f_width = wid;
     fp->f_fill = fill;
 
-    return (cp);
+    return cp;
 }
 
 /*
@@ -572,7 +572,7 @@ do_name(char *sp, int preprocess)
     case FT_GETMYMBOX:
     case FT_GETMYADDR:
        if (!primed) {
-           ismymbox ((struct mailname *) 0);
+           ismymbox(NULL);
            primed++;
        }
        /* FALLTHRU */
@@ -593,7 +593,7 @@ do_name(char *sp, int preprocess)
        cm->c_type |= CT_ADDR;
        break;
     }
-    return (cp);
+    return cp;
 }
 
 /*
@@ -732,7 +732,7 @@ do_func(char *sp)
     }
 
     case TF_NOW:
-       LV(t->f_type, time((time_t *) 0));
+       LV(t->f_type, time(NULL));
        break;
 
     case TF_EXPR_SV:
@@ -757,7 +757,7 @@ do_func(char *sp)
        CERROR("')' expected");
     }
     --infunction;
-    return (cp);
+    return cp;
 }
 
 /*
@@ -776,13 +776,13 @@ do_expr (char *sp, int preprocess)
     } else if (c == '(') {
        cp = do_func (cp);
     } else if (c == ')') {
-       return (--cp);
+       return --cp;
     } else if (c == '%' && *cp == '<') {
        cp = do_if (cp+1);
     } else {
        CERROR ("'(', '{', '%<' or ')' expected");
     }
-    return (cp);
+    return cp;
 }
 
 /*
@@ -854,7 +854,7 @@ do_if(char *sp)
 {
     char *cp = sp;
     struct format *fexpr,
-                          *fif = (struct format *)NULL;
+        *fif = NULL;
     int c = '<';
 
     for (;;) {
@@ -895,7 +895,7 @@ do_if(char *sp)
            fif = fp;                   /* loc of GOTO */
            fexpr->f_skip = next_fp - fexpr;
 
-           fexpr = (struct format *)NULL;/* no extra ENDIF */
+           fexpr = NULL;               /* no extra ENDIF */
 
            cp = compile (cp);          /* compile ELSE stmts */
            fif->f_skip = next_fp - fif;
@@ -919,7 +919,7 @@ do_if(char *sp)
     if (fexpr)                         /* IF ... [ELSIF ...] ENDIF */
        fexpr->f_skip = next_fp - fexpr;
 
-    return (cp);
+    return cp;
 }
 
 /*
@@ -967,7 +967,7 @@ fmt_freecomptext(void)
 
     for (i = 0; i < DIM(wantcomp); i++)
         for (cm = wantcomp[i]; cm; cm = cm->c_next) {
-            mh_xfree(cm->c_text);
+            free(cm->c_text);
             cm->c_text = NULL;
         }
 }
@@ -1141,8 +1141,8 @@ free_component(struct comp *cm)
 {
     if (--cm->c_refcount <= 0) {
        /* Shouldn't ever be NULL, but just in case ... */
-        mh_xfree(cm->c_name);
-        mh_xfree(cm->c_text);
+        free(cm->c_name);
+        free(cm->c_text);
        if (cm->c_type & CT_DATE)
            free(cm->c_tws);
        if (cm->c_type & CT_ADDR && cm->c_mn && cm->c_mn != &fmt_mnull)