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Use a more robust mechanism to obtain a \n terminated string over a socket.

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This commit is contained in:
Con Kolivas 2012-09-30 22:40:41 +10:00
parent 2de951518e
commit fa4c9bf60f
1 changed files with 9 additions and 8 deletions
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17
util.c
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@ -895,8 +895,8 @@ static bool sock_full(SOCKETTYPE sock, bool wait)
* from the socket and returns that as a malloced char */
char *recv_line(SOCKETTYPE sock)
{
char *sret = NULL, *s;
ssize_t len;
char *sret = NULL, *s, c;
ssize_t offset = 0;
s = alloca(RECVSIZE);
if (SOCKETFAIL(recv(sock, s, RECVSIZE, MSG_PEEK))) {
@ -908,12 +908,13 @@ char *recv_line(SOCKETTYPE sock)
applog(LOG_DEBUG, "Failed to parse a \\n terminated string in recv_line");
goto out;
}
len = strlen(sret) + 1;
/* We know how much data is in the buffer so this read should not fail */
if (SOCKETFAIL(recv(sock, s, len, 0)))
goto out;
if (s)
sret = strdup(strtok(s, "\n"));
do {
read(sock, &c, 1);
memcpy(s + offset++, &c, 1);
} while (strncmp(&c, "\n", 1));
sret = strdup(s);
strcpy(sret + offset - 1, "\0");
out:
if (!sret)
clear_sock(sock);