Ensure line terminators in email are consistent.

Fixes an issue with certain Mail Transport Agents, where attachments are not
interpreted correctly.

(closes issue #16557)
 Reported by: jcovert
 Patches: 
       20100308__issue16557__1.4.diff.txt uploaded by tilghman (license 14)
       20100308__issue16557__1.6.0.diff.txt uploaded by tilghman (license 14)
       20100308__issue16557__trunk.diff.txt uploaded by tilghman (license 14)
 Tested by: ebroad, zktech
 
Reviewboard: https://reviewboard.asterisk.org/r/544/


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@255591 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_voicemail.c

@@ -185,7 +185,11 @@ static struct vmstate *vmstates = NULL;
 #define BASEMAXINLINE 256
 #define BASELINELEN 72
 #define BASEMAXINLINE 256
-#define eol "\r\n"
+#ifdef IMAP_STORAGE
+#define ENDL "\r\n"
+#else
+#define ENDL "\n"
+#endif
 
 #define MAX_DATETIME_FORMAT	512
 #define MAX_NUM_CID_CONTEXTS 10
@@ -2980,15 +2984,17 @@ static int inchar(struct baseio *bio, FILE *fi)
 
 static int ochar(struct baseio *bio, int c, FILE *so)
 {
-	if (bio->linelength>=BASELINELEN) {
-		if (fputs(eol,so)==EOF)
+	if (bio->linelength >= BASELINELEN) {
+		if (fputs(ENDL, so) == EOF) {
 			return -1;
+		}
 
-		bio->linelength= 0;
+		bio->linelength = 0;
 	}
 
-	if (putc(((unsigned char)c),so)==EOF)
+	if (putc(((unsigned char) c), so) == EOF) {
 		return -1;
+	}
 
 	bio->linelength++;
 
@@ -3061,8 +3067,9 @@ static int base_encode(char *filename, FILE *so)
 
 	fclose(fi);
 	
-	if (fputs(eol,so)==EOF)
+	if (fputs(ENDL, so) == EOF) {
 		return 0;
+	}
 
 	return 1;
 }
@@ -3236,11 +3243,6 @@ static void make_email_file(FILE *p, char *srcemail, struct ast_vm_user *vmu, in
 	struct tm tm;
 	char *passdata = NULL, *passdata2;
 	size_t len_passdata = 0, len_passdata2, tmplen;
-#ifdef IMAP_STORAGE
-#define ENDL "\r\n"
-#else
-#define ENDL "\n"
-#endif
 
 	/* One alloca for multiple fields */
 	len_passdata2 = strlen(vmu->fullname);
@@ -3404,7 +3406,22 @@ static void make_email_file(FILE *p, char *srcemail, struct ast_vm_user *vmu, in
 				memset(passdata, 0, vmlen);
 				prep_email_sub_vars(ast, vmu, msgnum + 1, context, mailbox, fromfolder, cidnum, cidname, dur, date, passdata, vmlen, category);
 				pbx_substitute_variables_helper(ast, emailbody, passdata, vmlen);
+#ifdef IMAP_STORAGE
+				{
+					/* Convert body to native line terminators for IMAP backend */
+					char *line = passdata, *next;
+					do {
+						/* Terminate line before outputting it to the file */
+						if ((next = strchr(line, '\n'))) {
+							*next++ = '\0';
+						}
+						fprintf(p, "%s" ENDL, line);
+						line = next;
+					} while (!ast_strlen_zero(line));
+				}
+#else
 				fprintf(p, "%s" ENDL, passdata);
+#endif
 			} else
 				ast_log(LOG_WARNING, "Cannot allocate workspace for variable substitution\n");
 			ast_channel_free(ast);
@@ -3497,8 +3514,8 @@ plain_message:
 			unlink(newtmp);
 		}
 	}
-#undef ENDL
 }
+
 static int sendmail(char *srcemail, struct ast_vm_user *vmu, int msgnum, char *context, char *mailbox, char *fromfolder, char *cidnum, char *cidname, char *attach, char *format, int duration, int attach_user_voicemail, struct ast_channel *chan, const char *category)
 {
 	FILE *p=NULL;