curl/libcurl-ocloexec.patch
2012-02-02 18:50:23 +00:00

150 lines
4.5 KiB
Diff

Open library file descriptors with O_CLOEXEC
This patch is non-portable, it needs linux 2.6.23 and glibc 2.7
or later, different combinations (old linux, new glibc and vice-versa)
will result in a crash.
To make it portable you have to test O_CLOEXEC support at *runtime*
compile time is not enough.
--- lib/cookie.c.orig
+++ lib/cookie.c
@@ -736,7 +736,7 @@ struct CookieInfo *Curl_cookie_init(stru
fp = NULL;
}
else
- fp = file?fopen(file, "r"):NULL;
+ fp = file?fopen(file, "re"):NULL;
c->newsession = newsession; /* new session? */
@@ -1060,7 +1060,7 @@ static int cookie_output(struct CookieIn
use_stdout=TRUE;
}
else {
- out = fopen(dumphere, "w");
+ out = fopen(dumphere, "we");
if(!out)
return 1; /* failure */
}
--- lib/file.c.orig
+++ lib/file.c
@@ -249,7 +249,7 @@ static CURLcode file_connect(struct conn
fd = open_readonly(actual_path, O_RDONLY|O_BINARY);
file->path = actual_path;
#else
- fd = open_readonly(real_path, O_RDONLY);
+ fd = open_readonly(real_path, O_RDONLY|O_CLOEXEC);
file->path = real_path;
#endif
file->freepath = real_path; /* free this when done */
@@ -336,7 +336,7 @@ static CURLcode file_upload(struct conne
return CURLE_FILE_COULDNT_READ_FILE; /* fix: better error code */
if(data->state.resume_from)
- fp = fopen( file->path, "ab" );
+ fp = fopen( file->path, "abe" );
else {
int fd;
@@ -344,7 +344,7 @@ static CURLcode file_upload(struct conne
fd = open(file->path, O_WRONLY|O_CREAT|O_TRUNC|O_BINARY,
conn->data->set.new_file_perms);
#else
- fd = open(file->path, O_WRONLY|O_CREAT|O_TRUNC,
+ fd = open(file->path, O_WRONLY|O_CREAT|O_TRUNC|O_CLOEXEC,
conn->data->set.new_file_perms);
#endif
if(fd < 0) {
@@ -352,7 +352,7 @@ static CURLcode file_upload(struct conne
return CURLE_WRITE_ERROR;
}
close(fd);
- fp = fopen(file->path, "wb");
+ fp = fopen(file->path, "wbe");
}
if(!fp) {
--- lib/formdata.c.orig
+++ lib/formdata.c
@@ -1207,7 +1207,7 @@ CURLcode Curl_getformdata(struct Session
FILE *fileread;
fileread = strequal("-", file->contents)?
- stdin:fopen(file->contents, "rb"); /* binary read for win32 */
+ stdin:fopen(file->contents, "rbe"); /* binary read for win32 */
/*
* VMS: This only allows for stream files on VMS. Stream files are
@@ -1338,7 +1338,7 @@ static size_t readfromfile(struct Form *
else {
if(!form->fp) {
/* this file hasn't yet been opened */
- form->fp = fopen(form->data->line, "rb"); /* b is for binary */
+ form->fp = fopen(form->data->line, "rbe"); /* b is for binary */
if(!form->fp)
return (size_t)-1; /* failure */
}
--- lib/hostip6.c.orig
+++ lib/hostip6.c
@@ -45,7 +45,7 @@
#ifdef HAVE_PROCESS_H
#include <process.h>
#endif
-
+#include <fcntl.h>
#include "urldata.h"
#include "sendf.h"
#include "hostip.h"
@@ -113,7 +113,7 @@ bool Curl_ipv6works(void)
static int ipv6_works = -1;
if(-1 == ipv6_works) {
/* probe to see if we have a working IPv6 stack */
- curl_socket_t s = socket(PF_INET6, SOCK_DGRAM, 0);
+ curl_socket_t s = socket(PF_INET6, SOCK_DGRAM | O_CLOEXEC, 0);
if(s == CURL_SOCKET_BAD)
/* an ipv6 address was requested but we can't get/use one */
ipv6_works = 0;
--- lib/if2ip.c.orig
+++ lib/if2ip.c
@@ -153,7 +153,7 @@ char *Curl_if2ip(int af, const char *int
if(len >= sizeof(req.ifr_name))
return NULL;
- dummy = socket(AF_INET, SOCK_STREAM, 0);
+ dummy = socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0);
if(CURL_SOCKET_BAD == dummy)
return NULL;
--- lib/netrc.c.orig
+++ lib/netrc.c
@@ -110,7 +110,7 @@ int Curl_parsenetrc(const char *host,
netrc_alloc = TRUE;
}
- file = fopen(netrcfile, "r");
+ file = fopen(netrcfile, "re");
if(file) {
char *tok;
char *tok_buf;
--- lib/ssluse.c.orig
+++ lib/ssluse.c
@@ -436,7 +436,7 @@ int cert_stuff(struct connectdata *conn,
STACK_OF(X509) *ca = NULL;
int i;
- f = fopen(cert_file,"rb");
+ f = fopen(cert_file,"rbe");
if(!f) {
failf(data, "could not open PKCS12 file '%s'", cert_file);
return 0;
@@ -2316,7 +2316,7 @@ static CURLcode servercert(struct connec
/* e.g. match issuer name with provided issuer certificate */
if(data->set.str[STRING_SSL_ISSUERCERT]) {
- fp=fopen(data->set.str[STRING_SSL_ISSUERCERT],"r");
+ fp=fopen(data->set.str[STRING_SSL_ISSUERCERT],"re");
if(!fp) {
if(strict)
failf(data, "SSL: Unable to open issuer cert (%s)\n",