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libports: add dup() to libc 

Fixes #492.
This commit is contained in:
Josef Söntgen 2012-11-09 17:39:04 +01:00 committed by Norman Feske
parent 8f372b469a
commit bb33c9f3cf
3 changed files with 16 additions and 0 deletions
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1
libports/include/libc-plugin/plugin.h
View File

@ -76,6 +76,7 @@ namespace Libc {
virtual int connect(File_descriptor *,
const struct ::sockaddr *addr,
socklen_t addrlen);
virtual File_descriptor *dup(File_descriptor*);
virtual int dup2(File_descriptor *, File_descriptor *new_fd);
virtual int execve(char const *filename, char *const argv[],
char *const envp[]);

14
libports/src/lib/libc/file_operations.cc
View File

@ -320,6 +320,20 @@ extern "C" int _connect(int libc_fd, const struct sockaddr *addr,
}
extern "C" int _dup(int libc_fd)
{
File_descriptor *fd = libc_fd_to_fd(libc_fd, "dup");
File_descriptor *ret_fd = (fd && fd->plugin) ? fd->plugin->dup(fd) : 0;
return ret_fd ? ret_fd->libc_fd : INVALID_FD;
}
extern "C" int dup(int libc_fd)
{
return _dup(libc_fd);
}
extern "C" int _dup2(int libc_fd, int new_libc_fd)
{
File_descriptor *fd = libc_fd_to_fd(libc_fd, "dup2");

1
libports/src/lib/libc/plugin.cc
View File

@ -144,6 +144,7 @@ ret_type Plugin::name args \
/*
* Functions returning a 'File_descriptor'
*/
DUMMY(File_descriptor *, 0, dup, (File_descriptor *));
DUMMY(File_descriptor *, 0, open, (const char *, int));
DUMMY(File_descriptor *, 0, socket, (int, int, int));
DUMMY(File_descriptor *, 0, accept, (File_descriptor *, struct sockaddr *, socklen_t *));