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Code Issues Releases Activity

Support IMAP responses which arrive fragmented (sf.net #3182411)

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bug reported by Richard De Boer
This commit is contained in:
Pavel Labath 2011-10-16 12:04:42 +02:00
parent 8e3df58eea
commit cd9cd2151b
1 changed files with 28 additions and 17 deletions
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45
src/mail.cc
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@ -703,27 +703,35 @@ static void command(int sockfd, const std::string &cmd, char *response, const ch
{
struct timeval fetchtimeout;
fd_set fdset;
ssize_t total = 0;
int numbytes = 0;
if (send(sockfd, cmd.c_str(), cmd.length(), 0) == -1)
throw std::runtime_error("send: " + strerror_r(errno));
fetchtimeout.tv_sec = 60; // 60 second timeout i guess
fetchtimeout.tv_usec = 0;
FD_ZERO(&fdset);
FD_SET(sockfd, &fdset);
if(select(sockfd + 1, &fdset, NULL, NULL, &fetchtimeout) == 0)
throw std::runtime_error("select: read timeout");
if ((numbytes = recv(sockfd, response, MAXDATASIZE - 1, 0)) == -1)
throw std::runtime_error("recv: " + strerror_r(errno));
DBGP2("command() command: %s", cmd.c_str());
DBGP2("command() received: %s", response);
response[numbytes] = '\0';
if (strstr(response, verify) == NULL)
throw std::runtime_error("Unexpected response from server");
while(1) {
fetchtimeout.tv_sec = 60; // 60 second timeout i guess
fetchtimeout.tv_usec = 0;
FD_ZERO(&fdset);
FD_SET(sockfd, &fdset);
if(select(sockfd + 1, &fdset, NULL, NULL, &fetchtimeout) == 0)
throw std::runtime_error("select: read timeout");
if ((numbytes = recv(sockfd, response + total, MAXDATASIZE - 1 - total, 0)) == -1)
throw std::runtime_error("recv: " + strerror_r(errno));
total += numbytes;
response[total] = '\0';
DBGP2("command() received: %s", response);
if (strstr(response, verify) != NULL)
return;
if(numbytes == 0)
throw std::runtime_error("Unexpected response from server");
}
}
void imap_cb::check_status(char *recvbuf)
@ -816,7 +824,10 @@ void imap_cb::work()
FD_SET(donefd(), &fdset);
res = select(std::max(sockfd, donefd()) + 1, &fdset, NULL, NULL, &fetchtimeout);
if ((res == -1 && errno == EINTR) || FD_ISSET(donefd(), &fdset)) {
try { command(sockfd, "a3 LOGOUT\r\n", recvbuf, "a3 OK"); }
try {
command(sockfd, "DONE\r\n", recvbuf, "a5 OK");
command(sockfd, "a3 LOGOUT\r\n", recvbuf, "a3 OK");
}
catch(std::runtime_error &) {}
close(sockfd);
return;