lib: Added variants of sendfd and sendreq that take sendmsg flags.

[ashd.git] / lib / req.c

diff --git a/lib/req.c b/lib/req.c
index 64944bf..8ff26e0 100644 (file)
--- a/lib/req.c
+++ b/lib/req.c
@@ -23,6 +23,7 @@
 #include <errno.h>
 #include <ctype.h>
 #include <stdio.h>
+#include <fcntl.h>
 
 #ifdef HAVE_CONFIG_H
 #include <config.h>
@@ -105,12 +106,16 @@ int parseheaders(struct hthead *head, FILE *in)
 {
     int c, state;
     struct charbuf name, val;
+    size_t tsz;
     
     bufinit(name);
     bufinit(val);
     state = 0;
+    tsz = 0;
     while(1) {
        c = fgetc(in);
+       if(++tsz >= 65536)
+           goto fail;
     again:
        if(state == 0) {
            if(c == '\r') {
@@ -159,6 +164,72 @@ fail:
     return(-1);
 }
 
+struct hthead *parseresponse(FILE *in)
+{
+    struct hthead *req;
+    int code;
+    struct charbuf ver, msg;
+    int c;
+    
+    req = NULL;
+    bufinit(ver);
+    bufinit(msg);
+    code = 0;
+    while(1) {
+       c = getc(in);
+       if(c == ' ') {
+           break;
+       } else if((c == EOF) || (c < 32) || (c >= 128)) {
+           goto fail;
+       } else {
+           bufadd(ver, c);
+           if(ver.d >= 128)
+               goto fail;
+       }
+    }
+    while(1) {
+       c = getc(in);
+       if(c == ' ') {
+           break;
+       } else if((c == EOF) || (c < '0') || (c > '9')) {
+           goto fail;
+       } else {
+           code = (code * 10) + (c - '0');
+           if(code >= 10000)
+               goto fail;
+       }
+    }
+    while(1) {
+       c = getc(in);
+       if(c == 10) {
+           break;
+       } else if(c == 13) {
+       } else if((c == EOF) || (c < 32)) {
+           goto fail;
+       } else {
+           bufadd(msg, c);
+           if(msg.d >= 512)
+               goto fail;
+       }
+    }
+    bufadd(msg, 0);
+    bufadd(ver, 0);
+    req = mkresp(code, msg.b, ver.b);
+    if(parseheaders(req, in))
+       goto fail;
+    goto out;
+    
+fail:
+    if(req != NULL) {
+       freehthead(req);
+       req = NULL;
+    }
+out:
+    buffree(msg);
+    buffree(ver);
+    return(req);
+}
+
 void replrest(struct hthead *head, char *rest)
 {
     char *tmp;
@@ -219,7 +290,7 @@ int writeresp(FILE *out, struct hthead *resp)
     return(0);
 }
 
-int sendreq(int sock, struct hthead *req, int fd)
+int sendreq2(int sock, struct hthead *req, int fd, int flags)
 {
     int ret, i;
     struct charbuf buf;
@@ -234,7 +305,7 @@ int sendreq(int sock, struct hthead *req, int fd)
        bufcatstr2(buf, req->headers[i][1]);
     }
     bufcatstr2(buf, "");
-    ret = sendfd(sock, fd, buf.b, buf.d);
+    ret = sendfd2(sock, fd, buf.b, buf.d, flags);
     buffree(buf);
     if(ret < 0)
        return(-1);
@@ -242,6 +313,11 @@ int sendreq(int sock, struct hthead *req, int fd)
        return(0);
 }
 
+int sendreq(int sock, struct hthead *req, int fd)
+{
+    return(sendreq2(sock, req, fd, MSG_NOSIGNAL | MSG_DONTWAIT));
+}
+
 int recvreq(int sock, struct hthead **reqp)
 {
     int fd;
@@ -254,6 +330,7 @@ int recvreq(int sock, struct hthead **reqp)
     if((fd = recvfd(sock, &buf.b, &buf.d)) < 0) {
        return(-1);
     }
+    fcntl(fd, F_SETFD, FD_CLOEXEC);
     buf.s = buf.d;
     p = buf.b;
     l = buf.d;