94 lines
3.0 KiB
Diff
94 lines
3.0 KiB
Diff
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Open library file descriptors with O_CLOEXEC
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This patch is non-portable, it needs linux 2.6.23 and glibc 2.7
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or later, different combinations (old linux, new glibc and vice-versa)
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will result in a crash.
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To make it portable you have to test O_CLOEXEC support at *runtime*
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compile time is not enough.
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Index: curl-8.4.0/lib/file.c
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===================================================================
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--- curl-8.4.0.orig/lib/file.c
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+++ curl-8.4.0/lib/file.c
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@@ -232,7 +232,7 @@ static CURLcode file_connect(struct Curl
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}
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}
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#else
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- fd = open_readonly(real_path, O_RDONLY);
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+ fd = open_readonly(real_path, O_RDONLY|O_CLOEXEC);
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file->path = real_path;
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#endif
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#endif
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@@ -318,7 +318,7 @@ static CURLcode file_upload(struct Curl_
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else
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mode = MODE_DEFAULT|O_TRUNC;
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- fd = open(file->path, mode, data->set.new_file_perms);
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+ fd = open(file->path, mode|O_CLOEXEC, data->set.new_file_perms);
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if(fd < 0) {
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failf(data, "Can't open %s for writing", file->path);
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return CURLE_WRITE_ERROR;
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Index: curl-8.4.0/lib/if2ip.c
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===================================================================
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--- curl-8.4.0.orig/lib/if2ip.c
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+++ curl-8.4.0/lib/if2ip.c
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@@ -208,7 +208,7 @@ if2ip_result_t Curl_if2ip(int af,
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if(len >= sizeof(req.ifr_name))
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return IF2IP_NOT_FOUND;
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- dummy = socket(AF_INET, SOCK_STREAM, 0);
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+ dummy = socket(AF_INET, SOCK_STREAM|SOCK_CLOEXEC, 0);
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if(CURL_SOCKET_BAD == dummy)
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return IF2IP_NOT_FOUND;
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Index: curl-8.4.0/configure.ac
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===================================================================
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--- curl-8.4.0.orig/configure.ac
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+++ curl-8.4.0/configure.ac
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@@ -428,6 +428,8 @@ AC_DEFINE_UNQUOTED(OS, "${host}", [cpu-m
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# Silence warning: ar: 'u' modifier ignored since 'D' is the default
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AC_SUBST(AR_FLAGS, [cr])
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+AC_USE_SYSTEM_EXTENSIONS
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+
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dnl This defines _ALL_SOURCE for AIX
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CURL_CHECK_AIX_ALL_SOURCE
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Index: curl-8.4.0/lib/hostip.c
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===================================================================
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--- curl-8.4.0.orig/lib/hostip.c
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+++ curl-8.4.0/lib/hostip.c
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@@ -44,6 +44,7 @@
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#include <setjmp.h>
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#include <signal.h>
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+#include <fcntl.h>
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#include "urldata.h"
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#include "sendf.h"
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#include "hostip.h"
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@@ -609,7 +610,7 @@ bool Curl_ipv6works(struct Curl_easy *da
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else {
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int ipv6_works = -1;
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/* probe to see if we have a working IPv6 stack */
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- curl_socket_t s = socket(PF_INET6, SOCK_DGRAM, 0);
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+ curl_socket_t s = socket(PF_INET6, SOCK_DGRAM|SOCK_CLOEXEC, 0);
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if(s == CURL_SOCKET_BAD)
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/* an IPv6 address was requested but we can't get/use one */
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ipv6_works = 0;
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Index: curl-8.4.0/lib/cf-socket.c
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===================================================================
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--- curl-8.4.0.orig/lib/cf-socket.c
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+++ curl-8.4.0/lib/cf-socket.c
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@@ -274,7 +274,9 @@ static CURLcode socket_open(struct Curl_
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}
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else {
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/* opensocket callback not set, so simply create the socket now */
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- *sockfd = socket(addr->family, addr->socktype, addr->protocol);
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+ *sockfd = socket(addr->family,
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+ addr->socktype|SOCK_CLOEXEC,
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+ addr->protocol);
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}
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if(*sockfd == CURL_SOCKET_BAD)
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