tyrolyean/mailattach
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Added recursive root pointer propagation

Browse source 
Signed-off-by: Tyrolyean <tyrolyean@tyrolyean.net>
This commit is contained in:
Tyrolyean 2020-04-29 16:44:48 +02:00
parent 5814135512
commit 6fb30dc7bf
No known key found for this signature in database
GPG key ID: 81EC9BAC5E9667C6
2 changed files with 36 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
include/mail.h
View file

@ -61,6 +61,7 @@ struct email_t* get_root_mail(struct email_t* mail);
void propagate_insert_delete(struct email_t* mail, char* change_p,
ssize_t change);
void propagate_root_pointer(struct email_t* mail, char* change_p, char* old_p);
#define MULTIPART_MIME "multipart/"

38
src/mail.c
View file

@ -70,11 +70,18 @@ int append_to_header(struct email_t* mail, const char* pair){
struct email_t* root = get_root_mail(mail);
size_t root_offset = mail->header_len + (mail->message - root->message);
mail->message=insert_string(mail->message, buffer, mail->message_length,
mail->header_len);
propagate_insert_delete(root, root->message+root_offset,
strlen(buffer));
char* old_root = root->message;
char * new_root = insert_string(root->message, buffer,
root->message_length, root_offset);
if(new_root == NULL){
return -1;
}
mail->message_length += strlen(buffer);
propagate_root_pointer(root, new_root, old_root);
free(buffer);
redetect_body_head(mail);
@ -123,3 +130,28 @@ void propagate_insert_delete(struct email_t* mail, char* change_p,
return;
}
/* This propagates a root pointer change down to all submessages.
* Call this function with the root, changes will propagate down via recursion!
* The change pointer should point to the new root pointer for all messages,
* the old_p pointer should be the old root pointer
*/
void propagate_root_pointer(struct email_t* mail, char* change_p, char* old_p){
if(mail == NULL || change_p == NULL ||old_p == NULL){
/* MISSION ABORT!! */
return;
}
size_t delta = mail->message - old_p;
mail->message = change_p + delta;
if(mail->is_multipart){
for(size_t i = 0; i < mail->submes_cnt; i++){
propagate_root_pointer(mail->submes[i], change_p,
old_p);
}
}
return;
}