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fix an imap import bug

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This commit is contained in:
SJ 2012-08-09 00:08:49 +02:00
parent 886b8162a6
commit 1b6ad16700
1 changed files with 35 additions and 8 deletions
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39
src/imap.c
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@ -69,10 +69,17 @@ int get_message_length_from_imap_answer(char *s, int *_1st_line_bytes){
}
int is_last_complete_packet(char *s, int len, char *tagok, char *tagbad){
int is_last_complete_packet(char *s, int len, char *tagok, char *tagbad, int *pos){
char *p;
*pos = 0;
if(*(s+len-2) == '\r' && *(s+len-1) == '\n'){
if(strstr(s, tagok)) return 1;
if((p = strstr(s, tagok))){
*pos = p - s;
if(*pos > 3) *pos -= 2;
return 1;
}
if(strstr(s, tagbad)) return 1;
}
@ -81,7 +88,7 @@ int is_last_complete_packet(char *s, int len, char *tagok, char *tagbad){
int process_imap_folder(int sd, int *seq, char *folder, struct session_data *sdata, struct __data *data, struct __config *cfg){
int rc=ERR, i, n, pos, messages=0, len, readlen, fd, lastpos, nreads, processed_messages=0;
int rc=ERR, i, n, pos, endpos, messages=0, len, readlen, fd, lastpos, nreads, nwrites, processed_messages=0;
char *p, tag[SMALLBUFSIZE], tagok[SMALLBUFSIZE], tagbad[SMALLBUFSIZE], buf[MAXBUFSIZE], filename[SMALLBUFSIZE];
char aggrbuf[3*MAXBUFSIZE];
@ -112,8 +119,8 @@ int process_imap_folder(int sd, int *seq, char *folder, struct session_data *sda
if(messages <= 0) return rc;
for(i=1; i<=messages; i++){
printf("processed: %7d\r", processed_messages); fflush(stdout);
processed_messages++;
printf("processed: %7d\r", processed_messages); fflush(stdout);
snprintf(tag, sizeof(tag)-1, "A%d", *seq);
snprintf(tagok, sizeof(tagok)-1, "\r\nA%d OK", (*seq)++);
@ -137,6 +144,8 @@ int process_imap_folder(int sd, int *seq, char *folder, struct session_data *sda
pos = 0;
len = 0;
nreads = 0;
nwrites = 0;
endpos = 0;
memset(aggrbuf, 0, sizeof(aggrbuf));
lastpos = 0;
@ -156,7 +165,13 @@ int process_imap_folder(int sd, int *seq, char *folder, struct session_data *sda
}
if(lastpos + n + sizeof(buf) > sizeof(aggrbuf)){
nwrites++;
if(nwrites == 1)
write(fd, aggrbuf+pos, lastpos-pos);
else
write(fd, aggrbuf, lastpos);
memset(aggrbuf, 0, sizeof(aggrbuf));
lastpos = 0;
}
@ -164,12 +179,24 @@ int process_imap_folder(int sd, int *seq, char *folder, struct session_data *sda
memcpy(aggrbuf+lastpos, buf, n);
lastpos += n;
if(is_last_complete_packet(aggrbuf, lastpos, tagok, tagbad) == 1){
write(fd, aggrbuf, lastpos);
if(is_last_complete_packet(aggrbuf, lastpos, tagok, tagbad, &endpos) == 1){
nwrites++;
if(nwrites == 1)
write(fd, aggrbuf+pos, lastpos-(lastpos-endpos)-pos);
else
write(fd, aggrbuf, lastpos-(lastpos-endpos));
break;
}
else {
nwrites++;
if(nwrites == 1){
if(lastpos-n-pos > 0) write(fd, aggrbuf+pos, lastpos-n-pos); else nwrites--;
}
else {
write(fd, aggrbuf, lastpos-n);
}
memmove(aggrbuf, aggrbuf+lastpos-n, n);
lastpos = n;
memset(aggrbuf+lastpos, 0, sizeof(aggrbuf)-lastpos);