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security.c: Made block_write return a CURLcode.

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While doing so, renamed it to socket_write to better match its
function.
This commit is contained in:
Julien Chaffraix 2010-09-10 00:17:17 -07:00 committed by Daniel Stenberg
parent b684ccd8b1
commit 0006cdddee
1 changed files with 28 additions and 19 deletions
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47
lib/security.c
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@ -127,21 +127,30 @@ socket_read(curl_socket_t fd, void *to, size_t len)
return CURLE_OK;
}
static int
block_write(int fd, const void *buf, size_t len)
/* Write |len| bytes from the buffer |to| to the socket |fd|. Return a
CURLcode saying whether an error occured or CURLE_OK if |len| was written. */
static CURLcode
socket_write(struct connectdata *conn, curl_socket_t fd, const void *to, size_t len)
{
const unsigned char *p = buf;
int b;
while(len) {
b = write(fd, p, len);
if(b < 0 && (errno == EINTR || errno == EAGAIN))
continue;
else if(b < 0)
return -1;
len -= b;
p += b;
const char *to_p = to;
CURLcode code;
ssize_t written;
while(len > 0) {
code = Curl_write_plain(conn, fd, to_p, len, &written);
if(code == CURLE_OK) {
len -= written;
to_p += written;
}
else {
/* FIXME: We are doing a busy wait */
if(code == CURLE_AGAIN)
continue;
return code;
}
}
return p - (unsigned char*)buf;
return CURLE_OK;
}
static CURLcode read_data(struct connectdata *conn,
@ -237,11 +246,11 @@ sec_send(struct connectdata *conn, int fd, const char *from, int length)
bytes = Curl_base64_encode(conn->data, (char *)buf, bytes, &cmdbuf);
if(bytes > 0) {
if(protlevel == prot_private)
block_write(fd, "ENC ", 4);
socket_write(conn, fd, "ENC ", 4);
else
block_write(fd, "MIC ", 4);
block_write(fd, cmdbuf, bytes);
block_write(fd, "\r\n", 2);
socket_write(conn, fd, "MIC ", 4);
socket_write(conn, fd, cmdbuf, bytes);
socket_write(conn, fd, "\r\n", 2);
Curl_infof(conn->data, "%s %s\n",
protlevel == prot_private ? "ENC" : "MIC", cmdbuf);
free(cmdbuf);
@ -249,8 +258,8 @@ sec_send(struct connectdata *conn, int fd, const char *from, int length)
}
else {
bytes = htonl(bytes);
block_write(fd, &bytes, sizeof(bytes));
block_write(fd, buf, ntohl(bytes));
socket_write(conn, fd, &bytes, sizeof(bytes));
socket_write(conn, fd, buf, ntohl(bytes));
}
free(buf);
return length;