+ /*
+ * Scan the draft file for a header field name that matches the
+ * -attach argument. The existence of one indicates that the
+ * draft has attachments. Bail out if there are no attachments
+ * because we're done. Read to the end of the headers even if
+ * we have no attachments.
+ */
+
+ length = strlen(attachment_header_field_name);
+
+ has_attachment = 0;
+
+ while (get_line() != EOF && *field != '\0' && *field != '-')
+ if (strncasecmp(field, attachment_header_field_name, length) == 0 && field[length] == ':')
+ has_attachment = 1;
+
+ if (has_attachment == 0)
+ return (DONE);
+
+ /*
+ * We have at least one attachment. Look for at least one
+ * non-blank line in the body of the message which indicates
+ * content in the body.
+ */
+
+ has_body = 0;
+
+ while (get_line() != EOF) {
+ for (p = field; *p != '\0'; p++) {
+ if (*p != ' ' && *p != '\t') {
+ has_body = 1;
+ break;
+ }
+ }
+
+ if (has_body)
+ break;
+ }
+
+ /*
+ * Make names for the temporary files.
+ */
+
+ (void)strncpy(body_file_name,
+ m_mktemp(m_maildir(invo_name), NULL, NULL),
+ sizeof (body_file_name));
+ (void)strncpy(composition_file_name,
+ m_mktemp(m_maildir(invo_name), NULL, NULL),
+ sizeof (composition_file_name));
+
+ if (has_body)
+ body_file = fopen(body_file_name, "w");
+
+ composition_file = fopen(composition_file_name, "w");
+
+ if ((has_body && body_file == (FILE *)0) || composition_file == (FILE *)0) {
+ clean_up_temporary_files();
+ adios((char *)0, "unable to open all of the temporary files.");
+ }
+
+ /*
+ * Start at the beginning of the draft file. Copy all
+ * non-attachment header fields to the temporary composition file.
+ * Then add the dashed line separator.
+ */
+
+ rewind(draft_file);
+
+ while (get_line() != EOF && *field != '\0' && *field != '-')
+ if (strncasecmp(field, attachment_header_field_name, length) != 0 || field[length] != ':')
+ (void)fprintf(composition_file, "%s\n", field);
+
+ (void)fputs("--------\n", composition_file);
+
+ /*
+ * Copy the message body to a temporary file.
+ */
+
+ if (has_body) {
+ while ((c = getc(draft_file)) != EOF)
+ putc(c, body_file);
+
+ (void)fclose(body_file);
+ }
+
+ /*
+ * Add a mhbuild MIME composition file line for the body if
+ * there was one.
+ */
+
+ if (has_body)
+ make_mime_composition_file_entry(body_file_name, attachformat);
+
+ /*
+ * Now, go back to the beginning of the draft file and look for
+ * header fields that specify attachments. Add a mhbuild MIME
+ * composition file for each.
+ */
+
+ rewind(draft_file);
+
+ while (get_line() != EOF && *field != '\0' && *field != '-') {
+ if (strncasecmp(field, attachment_header_field_name, length) == 0 && field[length] == ':') {
+ for (p = field + length + 1; *p == ' ' || *p == '\t'; p++)
+ ;
+
+ make_mime_composition_file_entry(p, attachformat);
+ }
+ }
+
+ (void)fclose(composition_file);
+
+ /*
+ * We're ready to roll! Run mhbuild on the composition file.
+ * Note that mhbuild is in the context as buildmimeproc.
+ */
+
+ (void)sprintf(buf, "%s %s", buildmimeproc, composition_file_name);
+
+ if (system(buf) != 0) {
+ clean_up_temporary_files();
+ return (NOTOK);
+ }
+
+ return (OK);