spool.c: bzero contents of pointer

[people/ms/dma.git] / local.c

diff --git a/local.c b/local.c
index 694dd845766a02827fdecf7ac1e9c21863d1c0e3..6a6407ef86527fd83c3273e77ee039acaf888a5d 100644 (file)
--- a/local.c
+++ b/local.c
@@ -214,7 +214,17 @@ retry:
                        goto chop;
                }
 
-               if (hadnl && strncmp(line, "From ", 5) == 0) {
+               /*
+                * mboxro processing:
+                * - escape lines that start with "From " with a > sign.
+                * - be reversable by escaping lines that contain an arbitrary
+                *   number of > signs, followed by "From ", i.e. />*From / in regexp.
+                * - strict mbox processing only requires escaping after empty lines,
+                *   yet most MUAs seem to relax this requirement and will treat any
+                *   line starting with "From " as the beginning of a new mail.
+                */
+               if ((!MBOX_STRICT || hadnl) &&
+                   strncmp(&line[strspn(line, ">")], "From ", 5) == 0) {
                        const char *gt = ">";
 
                        if (write(mbox, gt, 1) != 1)