hcontents
hp->h_to = addto(hp->h_to, hcontents(linebuf));
addone(hp->h_subject, hcontents(linebuf));
hp->h_cc = addto(hp->h_cc, hcontents(linebuf));
addto(hp->h_bcc, hcontents(linebuf));
addone(hp->h_defopt, hcontents(linebuf));
hp->h_to = addto(hp->h_to, hcontents(hdr));
hp->h_subject = addone(hp->h_subject, hcontents(hdr));
hp->h_cc = addto(hp->h_cc, hcontents(hdr));
hp->h_bcc = addto(hp->h_bcc, hcontents(hdr));
hp->h_defopt = addone(hp->h_defopt, hcontents(hdr));
cp = hcontents(linebuf);
clen = atol(hcontents(linebuf));
cp = hcontents(linebuf);
extern char *hcontents(char hfield[]);
r = (*add)(r, hcontents(linebuf));