[package] uhttpd:
authorJo-Philipp Wich <jow@openwrt.org>
Wed, 18 Aug 2010 00:04:52 +0000 (00:04 +0000)
committerJo-Philipp Wich <jow@openwrt.org>
Wed, 18 Aug 2010 00:04:52 +0000 (00:04 +0000)
- fix parsing of interpreter entries in the config file, fixes serving of static files as .cgi with X-Wrt
- better cope with connection aborts, especially during header transfer
- fix return value checking of TLS reads and writes, solves some blocking issues

SVN-Revision: 22692

package/uhttpd/Makefile
package/uhttpd/src/uhttpd-cgi.c
package/uhttpd/src/uhttpd-file.c
package/uhttpd/src/uhttpd-tls.c
package/uhttpd/src/uhttpd-utils.c
package/uhttpd/src/uhttpd-utils.h
package/uhttpd/src/uhttpd.c
package/uhttpd/src/uhttpd.h

index de9eee9..1227174 100644 (file)
@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=uhttpd
-PKG_RELEASE:=15
+PKG_RELEASE:=16
 
 PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
 PKG_BUILD_DEPENDS := libcyassl liblua
index f9dd981..8c17251 100644 (file)
@@ -139,7 +139,7 @@ void uh_cgi_request(
        struct client *cl, struct http_request *req,
        struct path_info *pi, struct interpreter *ip
 ) {
-       int i, hdroff, bufoff;
+       int i, hdroff, bufoff, rv;
        int hdrlen = 0;
        int buflen = 0;
        int fd_max = 0;
@@ -376,12 +376,6 @@ void uh_cgi_request(
 
                        memset(hdr, 0, sizeof(hdr));
 
-                       timeout.tv_sec = cl->server->conf->script_timeout;
-                       timeout.tv_usec = 0;
-
-#define ensure(x) \
-       do { if( x < 0 ) goto out; } while(0)
-
                        /* I/O loop, watch our pipe ends and dispatch child reads/writes from/to socket */
                        while( 1 )
                        {
@@ -391,11 +385,21 @@ void uh_cgi_request(
                                FD_SET(rfd[0], &reader);
                                FD_SET(wfd[1], &writer);
 
+                               timeout.tv_sec = (header_sent < 1) ? cl->server->conf->script_timeout : 3;
+                               timeout.tv_usec = 0;
+
+                               ensure_out(rv = select_intr(fd_max, &reader,
+                                       (content_length > -1) ? &writer : NULL, NULL, &timeout));
+
+                               /* timeout */
+                               if( rv == 0 )
+                               {
+                                       ensure_out(kill(child, 0));
+                               }
+
                                /* wait until we can read or write or both */
-                               if( select_intr(fd_max, &reader,
-                                       (content_length > -1) ? &writer : NULL, NULL,
-                                       (header_sent < 1) ? &timeout : NULL) > 0
-                               ) {
+                               else if( rv > 0 )
+                               {
                                        /* ready to write to cgi program */
                                        if( FD_ISSET(wfd[1], &writer) )
                                        {
@@ -403,7 +407,10 @@ void uh_cgi_request(
                                                if( content_length > 0 )
                                                {
                                                        /* read it from socket ... */
-                                                       if( (buflen = uh_tcp_recv(cl, buf, min(content_length, sizeof(buf)))) > 0 )
+                                                       ensure_out(buflen = uh_tcp_recv(cl, buf,
+                                                               min(content_length, sizeof(buf))));
+
+                                                       if( buflen > 0 )
                                                        {
                                                                /* ... and write it to child's stdin */
                                                                if( write(wfd[1], buf, buflen) < 0 )
@@ -456,7 +463,7 @@ void uh_cgi_request(
                                                                if( (res = uh_cgi_header_parse(hdr, hdrlen, &hdroff)) != NULL )
                                                                {
                                                                        /* write status */
-                                                                       ensure(uh_http_sendf(cl, NULL,
+                                                                       ensure_out(uh_http_sendf(cl, NULL,
                                                                                "HTTP/%.1f %03d %s\r\n"
                                                                                "Connection: close\r\n",
                                                                                req->version, res->statuscode,
@@ -466,7 +473,7 @@ void uh_cgi_request(
                                                                        if( !uh_cgi_header_lookup(res, "Location") &&
                                                                            !uh_cgi_header_lookup(res, "Content-Type")
                                                                        ) {
-                                                                               ensure(uh_http_send(cl, NULL,
+                                                                               ensure_out(uh_http_send(cl, NULL,
                                                                                        "Content-Type: text/plain\r\n", -1));
                                                                        }
 
@@ -474,32 +481,32 @@ void uh_cgi_request(
                                                                        if( (req->version > 1.0) &&
                                                                            !uh_cgi_header_lookup(res, "Transfer-Encoding")
                                                                        ) {
-                                                                               ensure(uh_http_send(cl, NULL,
+                                                                               ensure_out(uh_http_send(cl, NULL,
                                                                                        "Transfer-Encoding: chunked\r\n", -1));
                                                                        }
 
                                                                        /* write headers from CGI program */
                                                                        foreach_header(i, res->headers)
                                                                        {
-                                                                               ensure(uh_http_sendf(cl, NULL, "%s: %s\r\n",
+                                                                               ensure_out(uh_http_sendf(cl, NULL, "%s: %s\r\n",
                                                                                        res->headers[i], res->headers[i+1]));
                                                                        }
 
                                                                        /* terminate header */
-                                                                       ensure(uh_http_send(cl, NULL, "\r\n", -1));
+                                                                       ensure_out(uh_http_send(cl, NULL, "\r\n", -1));
 
                                                                        /* push out remaining head buffer */
                                                                        if( hdroff < hdrlen )
-                                                                               ensure(uh_http_send(cl, req, &hdr[hdroff], hdrlen - hdroff));
+                                                                               ensure_out(uh_http_send(cl, req, &hdr[hdroff], hdrlen - hdroff));
                                                                }
 
                                                                /* ... failed and head buffer exceeded */
                                                                else if( hdrlen >= sizeof(hdr) )
                                                                {
-                                                                       ensure(uh_cgi_error_500(cl, req,
+                                                                       ensure_out(uh_cgi_error_500(cl, req,
                                                                                "The CGI program generated an invalid response:\n\n"));
 
-                                                                       ensure(uh_http_send(cl, req, hdr, hdrlen));
+                                                                       ensure_out(uh_http_send(cl, req, hdr, hdrlen));
                                                                }
 
                                                                /* ... failed but free buffer space, try again */
@@ -510,7 +517,7 @@ void uh_cgi_request(
 
                                                                /* push out remaining read buffer */
                                                                if( bufoff < buflen )
-                                                                       ensure(uh_http_send(cl, req, &buf[bufoff], buflen - bufoff));
+                                                                       ensure_out(uh_http_send(cl, req, &buf[bufoff], buflen - bufoff));
 
                                                                header_sent = 1;
                                                                continue;
@@ -518,7 +525,7 @@ void uh_cgi_request(
 
 
                                                        /* headers complete, pass through buffer to socket */
-                                                       ensure(uh_http_send(cl, req, buf, buflen));
+                                                       ensure_out(uh_http_send(cl, req, buf, buflen));
                                                }
 
                                                /* looks like eof from child */
@@ -538,7 +545,7 @@ void uh_cgi_request(
                                                                 * build the required headers here.
                                                                 */
 
-                                                               ensure(uh_http_sendf(cl, NULL,
+                                                               ensure_out(uh_http_sendf(cl, NULL,
                                                                        "HTTP/%.1f 200 OK\r\n"
                                                                        "Content-Type: text/plain\r\n"
                                                                        "%s\r\n",
@@ -546,11 +553,11 @@ void uh_cgi_request(
                                                                                        ? "Transfer-Encoding: chunked\r\n" : ""
                                                                ));
 
-                                                               ensure(uh_http_send(cl, req, hdr, hdrlen));
+                                                               ensure_out(uh_http_send(cl, req, hdr, hdrlen));
                                                        }
 
                                                        /* send final chunk if we're in chunked transfer mode */
-                                                       ensure(uh_http_send(cl, req, "", 0));
+                                                       ensure_out(uh_http_send(cl, req, "", 0));
                                                        break;
                                                }
                                        }
@@ -561,13 +568,13 @@ void uh_cgi_request(
                                {
                                        if( (errno != EINTR) && ! header_sent )
                                        {
-                                               ensure(uh_http_sendhf(cl, 504, "Gateway Timeout",
+                                               ensure_out(uh_http_sendhf(cl, 504, "Gateway Timeout",
                                                        "The CGI script took too long to produce "
                                                        "a response"));
                                        }
 
                                        /* send final chunk if we're in chunked transfer mode */
-                                       ensure(uh_http_send(cl, req, "", 0));
+                                       ensure_out(uh_http_send(cl, req, "", 0));
 
                                        break;
                                }
index 25a5f6e..fda86d7 100644 (file)
@@ -97,8 +97,6 @@ static char * uh_file_header_lookup(struct http_request *req, const char *name)
        return NULL;
 }
 
-#define ensure_ret(x) \
-       do { if( x < 0 ) return -1; } while(0)
 
 static int uh_file_response_ok_hdrs(struct client *cl, struct http_request *req, struct stat *s)
 {
@@ -132,7 +130,7 @@ static int uh_file_response_412(struct client *cl, struct http_request *req)
                "Connection: close\r\n", req->version);
 }
 
-static int uh_file_if_match(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_if_match(struct client *cl, struct http_request *req, struct stat *s, int *ok)
 {
        const char *tag = uh_file_mktag(s);
        char *hdr = uh_file_header_lookup(req, "If-Match");
@@ -152,43 +150,44 @@ static int uh_file_if_match(struct client *cl, struct http_request *req, struct
                        }
                        else if( !strcmp(p, "*") || !strcmp(p, tag) )
                        {
-                               return 1;
+                               *ok = 1;
+                               return *ok;
                        }
                }
 
-               uh_file_response_412(cl, req);
-               return 0;
+               *ok = 0;
+               ensure_ret(uh_file_response_412(cl, req));
+               return *ok;
        }
 
-       return 1;
+       *ok = 1;
+       return *ok;
 }
 
-static int uh_file_if_modified_since(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_if_modified_since(struct client *cl, struct http_request *req, struct stat *s, int *ok)
 {
        char *hdr = uh_file_header_lookup(req, "If-Modified-Since");
+       *ok = 1;
 
        if( hdr )
        {
-               if( uh_file_date2unix(hdr) < s->st_mtime )
+               if( uh_file_date2unix(hdr) >= s->st_mtime )
                {
-                       return 1;
-               }
-               else
-               {
-                       uh_file_response_304(cl, req, s);
-                       return 0;
+                       *ok = 0;
+                       ensure_ret(uh_file_response_304(cl, req, s));
                }
        }
 
-       return 1;
+       return *ok;
 }
 
-static int uh_file_if_none_match(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_if_none_match(struct client *cl, struct http_request *req, struct stat *s, int *ok)
 {
        const char *tag = uh_file_mktag(s);
        char *hdr = uh_file_header_lookup(req, "If-None-Match");
        char *p;
        int i;
+       *ok = 1;
 
        if( hdr )
        {
@@ -203,53 +202,54 @@ static int uh_file_if_none_match(struct client *cl, struct http_request *req, st
                        }
                        else if( !strcmp(p, "*") || !strcmp(p, tag) )
                        {
+                               *ok = 0;
+
                                if( (req->method == UH_HTTP_MSG_GET) ||
                                    (req->method == UH_HTTP_MSG_HEAD) )
-                                       uh_file_response_304(cl, req, s);
+                                       ensure_ret(uh_file_response_304(cl, req, s));
                                else
-                                       uh_file_response_412(cl, req);
+                                       ensure_ret(uh_file_response_412(cl, req));
 
-                               return 0;
+                               break;
                        }
                }
        }
 
-       return 1;
+       return *ok;
 }
 
-static int uh_file_if_range(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_if_range(struct client *cl, struct http_request *req, struct stat *s, int *ok)
 {
        char *hdr = uh_file_header_lookup(req, "If-Range");
+       *ok = 1;
 
        if( hdr )
        {
-               uh_file_response_412(cl, req);
-               return 0;
+               *ok = 0;
+               ensure_ret(uh_file_response_412(cl, req));
        }
 
-       return 1;
+       return *ok;
 }
 
-static int uh_file_if_unmodified_since(struct client *cl, struct http_request *req, struct stat *s)
+static int uh_file_if_unmodified_since(struct client *cl, struct http_request *req, struct stat *s, int *ok)
 {
        char *hdr = uh_file_header_lookup(req, "If-Unmodified-Since");
+       *ok = 1;
 
        if( hdr )
        {
                if( uh_file_date2unix(hdr) <= s->st_mtime )
                {
-                       uh_file_response_412(cl, req);
-                       return 0;
+                       *ok = 0;
+                       ensure_ret(uh_file_response_412(cl, req));
                }
        }
 
-       return 1;
+       return *ok;
 }
 
 
-#define ensure_out(x) \
-       do { if( x < 0 ) goto out; } while(0)
-
 static int uh_file_scandir_filter_dir(const struct dirent *e)
 {
        return strcmp(e->d_name, ".") ? 1 : 0;
@@ -335,6 +335,7 @@ out:
 void uh_file_request(struct client *cl, struct http_request *req, struct path_info *pi)
 {
        int rlen;
+       int ok = 1;
        int fd = -1;
        char buf[UH_LIMIT_MSGHEAD];
 
@@ -342,13 +343,14 @@ void uh_file_request(struct client *cl, struct http_request *req, struct path_in
        if( (pi->stat.st_mode & S_IFREG) && ((fd = open(pi->phys, O_RDONLY)) > 0) )
        {
                /* test preconditions */
-               if(
-                       uh_file_if_modified_since(cl, req, &pi->stat)   &&
-                       uh_file_if_match(cl, req, &pi->stat)            &&
-                       uh_file_if_range(cl, req, &pi->stat)            &&
-                       uh_file_if_unmodified_since(cl, req, &pi->stat) &&
-                       uh_file_if_none_match(cl, req, &pi->stat)
-               ) {
+               if(ok) ensure_out(uh_file_if_modified_since(cl, req, &pi->stat, &ok));
+               if(ok) ensure_out(uh_file_if_match(cl, req, &pi->stat, &ok));
+               if(ok) ensure_out(uh_file_if_range(cl, req, &pi->stat, &ok));
+               if(ok) ensure_out(uh_file_if_unmodified_since(cl, req, &pi->stat, &ok));
+               if(ok) ensure_out(uh_file_if_none_match(cl, req, &pi->stat, &ok));
+
+               if( ok > 0 )
+               {
                        /* write status */
                        ensure_out(uh_file_response_200(cl, req, &pi->stat));
 
index 26143dd..008f8e0 100644 (file)
@@ -70,12 +70,14 @@ void uh_tls_client_accept(struct client *c)
 
 int uh_tls_client_recv(struct client *c, void *buf, int len)
 {
-       return SSL_read(c->tls, buf, len);
+       int rv = SSL_read(c->tls, buf, len);
+       return (rv > 0) ? rv : -1;
 }
 
 int uh_tls_client_send(struct client *c, void *buf, int len)
 {
-       return SSL_write(c->tls, buf, len);
+       int rv = SSL_write(c->tls, buf, len);
+       return (rv > 0) ? rv : -1;
 }
 
 void uh_tls_client_close(struct client *c)
index e68926e..8a06c93 100644 (file)
@@ -112,6 +112,7 @@ int select_intr(int n, fd_set *r, fd_set *w, fd_set *e, struct timeval *t)
        /* unblock SIGCHLD */
        sigemptyset(&ssn);
        sigaddset(&ssn, SIGCHLD);
+       sigaddset(&ssn, SIGPIPE);
        sigprocmask(SIG_UNBLOCK, &ssn, &sso);
 
        rv = select(n, r, w, e, t);
@@ -193,8 +194,6 @@ int uh_tcp_recv(struct client *cl, char *buf, int len)
        return sz;
 }
 
-#define ensure(x) \
-       do { if( x < 0 ) return -1; } while(0)
 
 int uh_http_sendhf(struct client *cl, int code, const char *summary, const char *fmt, ...)
 {
@@ -211,14 +210,14 @@ int uh_http_sendhf(struct client *cl, int code, const char *summary, const char
                        code, summary
        );
 
-       ensure(uh_tcp_send(cl, buffer, len));
+       ensure_ret(uh_tcp_send(cl, buffer, len));
 
        va_start(ap, fmt);
        len = vsnprintf(buffer, sizeof(buffer), fmt, ap);
        va_end(ap);
 
-       ensure(uh_http_sendc(cl, buffer, len));
-       ensure(uh_http_sendc(cl, NULL, 0));
+       ensure_ret(uh_http_sendc(cl, buffer, len));
+       ensure_ret(uh_http_sendc(cl, NULL, 0));
 
        return 0;
 }
@@ -235,13 +234,13 @@ int uh_http_sendc(struct client *cl, const char *data, int len)
        if( len > 0 )
        {
                clen = snprintf(chunk, sizeof(chunk), "%X\r\n", len);
-               ensure(uh_tcp_send(cl, chunk, clen));
-               ensure(uh_tcp_send(cl, data, len));
-               ensure(uh_tcp_send(cl, "\r\n", 2));
+               ensure_ret(uh_tcp_send(cl, chunk, clen));
+               ensure_ret(uh_tcp_send(cl, data, len));
+               ensure_ret(uh_tcp_send(cl, "\r\n", 2));
        }
        else
        {
-               ensure(uh_tcp_send(cl, "0\r\n\r\n", 5));
+               ensure_ret(uh_tcp_send(cl, "0\r\n\r\n", 5));
        }
 
        return 0;
@@ -259,9 +258,9 @@ int uh_http_sendf(
        va_end(ap);
 
        if( (req != NULL) && (req->version > 1.0) )
-               ensure(uh_http_sendc(cl, buffer, len));
+               ensure_ret(uh_http_sendc(cl, buffer, len));
        else if( len > 0 )
-               ensure(uh_tcp_send(cl, buffer, len));
+               ensure_ret(uh_tcp_send(cl, buffer, len));
 
        return 0;
 }
@@ -273,9 +272,9 @@ int uh_http_send(
                len = strlen(buf);
 
        if( (req != NULL) && (req->version > 1.0) )
-               ensure(uh_http_sendc(cl, buf, len));
+               ensure_ret(uh_http_sendc(cl, buf, len));
        else if( len > 0 )
-               ensure(uh_tcp_send(cl, buf, len));
+               ensure_ret(uh_tcp_send(cl, buf, len));
 
        return 0;
 }
@@ -639,7 +638,7 @@ struct auth_realm * uh_auth_add(char *path, char *user, char *pass)
                        ) {
                                memcpy(new->pass, pwd->pw_passwd,
                                        min(strlen(pwd->pw_passwd), sizeof(new->pass) - 1));
-                       }                       
+                       }
                }
 
                /* ordinary pwd */
index 95535d6..3514ce1 100644 (file)
 #define fd_cloexec(fd) \
        fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC)
 
+#define ensure_out(x) \
+       do { if((x) < 0) goto out; } while(0)
+
+#define ensure_ret(x) \
+       do { if((x) < 0) return -1; } while(0)
+
+
 struct path_info {
        char *root;
        char *phys;
index 6406e45..6f5e616 100644 (file)
@@ -96,17 +96,18 @@ static void uh_config_parse(struct config *conf)
                                conf->error_handler = strdup(col1);
                        }
 #ifdef HAVE_CGI
-                       else if( (line[0] == '.') && (strchr(line, ':') != NULL) )
+                       else if( (line[0] == '*') && (strchr(line, ':') != NULL) )
                        {
-                               if( !(col1 = strchr(line, ':')) || (*col1++ = 0) ||
-                                   !(eol = strchr(col1, '\n')) || (*eol++  = 0) )
+                               if( !(col1 = strchr(line, '*')) || (*col1++ = 0) ||
+                                   !(col2 = strchr(col1, ':')) || (*col2++ = 0) ||
+                                   !(eol = strchr(col2, '\n')) || (*eol++  = 0) )
                                                continue;
 
-                               if( !uh_interpreter_add(line, col1) )
+                               if( !uh_interpreter_add(col1, col2) )
                                {
                                        fprintf(stderr,
                                                "Unable to add interpreter %s for extension %s: "
-                                               "Out of memory\n", col1, line
+                                               "Out of memory\n", col2, col1
                                        );
                                }
                        }
@@ -126,6 +127,10 @@ static int uh_socket_bind(
        int status;
        int bound = 0;
 
+       int tcp_ka_idl = 1;
+       int tcp_ka_int = 1;
+       int tcp_ka_cnt = 3;
+
        struct listener *l = NULL;
        struct addrinfo *addrs = NULL, *p = NULL;
 
@@ -145,12 +150,22 @@ static int uh_socket_bind(
                }
 
                /* "address already in use" */
-               if( setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) == -1 )
+               if( setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) )
                {
                        perror("setsockopt()");
                        goto error;
                }
 
+               /* TCP keep-alive */
+               if( setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, &yes, sizeof(yes)) ||
+                   setsockopt(sock, SOL_TCP, TCP_KEEPIDLE,  &tcp_ka_idl, sizeof(tcp_ka_idl)) ||
+                   setsockopt(sock, SOL_TCP, TCP_KEEPINTVL, &tcp_ka_int, sizeof(tcp_ka_int)) ||
+                   setsockopt(sock, SOL_TCP, TCP_KEEPCNT,   &tcp_ka_cnt, sizeof(tcp_ka_cnt)) )
+               {
+                   fprintf(stderr, "Notice: Unable to enable TCP keep-alive: %s\n",
+                       strerror(errno));
+               }
+
                /* required to get parallel v4 + v6 working */
                if( p->ai_family == AF_INET6 )
                {
@@ -355,7 +370,6 @@ static struct http_request * uh_http_header_recv(struct client *cl)
        ssize_t blen = sizeof(buffer)-1;
        ssize_t rlen = 0;
 
-
        memset(buffer, 0, sizeof(buffer));
 
        while( blen > 0 )
@@ -371,41 +385,37 @@ static struct http_request * uh_http_header_recv(struct client *cl)
                if( select(cl->socket + 1, &reader, NULL, NULL, &timeout) > 0 )
                {
                        /* receive data */
-                       rlen = uh_tcp_peek(cl, bufptr, blen);
+                       ensure_out(rlen = uh_tcp_peek(cl, bufptr, blen));
 
-                       if( rlen > 0 )
+                       if( (idxptr = strfind(buffer, sizeof(buffer), "\r\n\r\n", 4)) )
                        {
-                               if( (idxptr = strfind(buffer, sizeof(buffer), "\r\n\r\n", 4)) )
-                               {
-                                       blen -= uh_tcp_recv(cl, bufptr, (int)(idxptr - bufptr) + 4);
+                               ensure_out(rlen = uh_tcp_recv(cl, bufptr,
+                                       (int)(idxptr - bufptr) + 4));
 
-                                       /* header read complete ... */
-                                       return uh_http_header_parse(cl, buffer, sizeof(buffer) - blen - 1);
-                               }
-                               else
-                               {
-                                       rlen = uh_tcp_recv(cl, bufptr, rlen);
-                                       blen -= rlen;
-                                       bufptr += rlen;
-                               }
+                               /* header read complete ... */
+                               blen -= rlen;
+                               return uh_http_header_parse(cl, buffer,
+                                       sizeof(buffer) - blen - 1);
                        }
                        else
                        {
-                               /* invalid request (unexpected eof/timeout) */
-                               uh_http_response(cl, 408, "Request Timeout");
-                               return NULL;
+                               ensure_out(rlen = uh_tcp_recv(cl, bufptr, rlen));
+
+                               blen -= rlen;
+                               bufptr += rlen;
                        }
                }
                else
                {
                        /* invalid request (unexpected eof/timeout) */
-                       uh_http_response(cl, 408, "Request Timeout");
                        return NULL;
                }
        }
 
        /* request entity too large */
        uh_http_response(cl, 413, "Request Entity Too Large");
+
+out:
        return NULL;
 }
 
index 78cca7b..6747b90 100644 (file)
@@ -28,6 +28,7 @@
 #include <sys/select.h>
 #include <sys/wait.h>
 #include <netinet/in.h>
+#include <netinet/tcp.h>
 #include <arpa/inet.h>
 #include <linux/limits.h>
 #include <netdb.h>
 #include <openssl/ssl.h>
 #endif
 
+/* uClibc... */
+#ifndef SOL_TCP
+#define SOL_TCP        6
+#endif
+
 
 #define UH_LIMIT_MSGHEAD       4096
 #define UH_LIMIT_HEADERS       64