contribs: updated binary packages for Mac OS X including WebM support

[vlc] / src / text / filesystem.c

diff --git a/src/text/filesystem.c b/src/text/filesystem.c
index 6ebfc39a138c4cedfbaef7b250d0f3da34d86938..31fddef92647e1d80da80da98ce82bc16497cb2d 100644 (file)
--- a/src/text/filesystem.c
+++ b/src/text/filesystem.c
@@ -37,14 +37,12 @@
 #include <assert.h>
 
 #include <stdio.h>
+#include <limits.h> /* NAME_MAX */
 #include <errno.h>
 #include <sys/types.h>
 #ifdef HAVE_DIRENT_H
 #  include <dirent.h>
 #endif
-#ifdef UNDER_CE
-#  include <tchar.h>
-#endif
 #ifdef HAVE_SYS_STAT_H
 # include <sys/stat.h>
 #endif
@@ -53,11 +51,15 @@
 #endif
 #ifdef WIN32
 # include <io.h>
+# include <winsock2.h>
 # ifndef UNDER_CE
 #  include <direct.h>
+# else
+#  include <tchar.h>
 # endif
 #else
 # include <unistd.h>
+# include <sys/socket.h>
 #endif
 
 #ifndef HAVE_LSTAT
@@ -193,6 +195,53 @@ FILE *vlc_fopen (const char *filename, const char *mode)
     return stream;
 }
 
+/**
+ * Opens a system file handle relative to an existing directory handle.
+ *
+ * @param dir directory file descriptor
+ * @param filename file path to open (with UTF-8 encoding)
+ * @param flags open() flags, see the C library open() documentation
+ * @return a file handle on success, -1 on error (see errno).
+ * @note Contrary to standard open(), this function returns file handles
+ * with the close-on-exec flag enabled.
+ */
+int vlc_openat (int dir, const char *filename, int flags, ...)
+{
+    unsigned int mode = 0;
+    va_list ap;
+
+    va_start (ap, flags);
+    if (flags & O_CREAT)
+        mode = va_arg (ap, unsigned int);
+    va_end (ap);
+
+#ifdef O_CLOEXEC
+    flags |= O_CLOEXEC;
+#endif
+
+    const char *local_name = ToLocale (filename);
+    if (local_name == NULL)
+    {
+        errno = ENOENT;
+        return -1;
+    }
+
+#ifdef HAVE_OPENAT
+    int fd = openat (dir, local_name, flags, mode);
+# ifdef HAVE_FCNTL
+    if (fd != -1)
+        fcntl (fd, F_SETFD, FD_CLOEXEC);
+# endif
+#else
+    int fd = -1;
+    errno = ENOSYS;
+#endif
+
+    LocaleFree (local_name);
+    return fd;
+}
+
+
 /**
  * Creates a directory using UTF-8 paths.
  *
@@ -274,12 +323,18 @@ char *vlc_readdir( DIR *dir )
     return FromWide (ent->d_name);
 #else
     struct dirent *ent;
-
-    ent = readdir( (DIR *)dir );
-    if( ent == NULL )
+    struct
+    {
+        struct dirent ent;
+        char buf[NAME_MAX + 1];
+    } buf;
+    int val = readdir_r (dir, &buf.ent, &ent);
+    if (val)
+    {
+        errno = val;
         return NULL;
-
-    return vlc_fix_readdir( ent->d_name );
+    }
+    return ent ? vlc_fix_readdir( ent->d_name ) : NULL;
 #endif
 }
 
@@ -417,7 +472,7 @@ int vlc_stat( const char *filename, struct stat *buf)
  *
  * @param filename UTF-8 file path
  */
-int utf8_lstat( const char *filename, struct stat *buf)
+int vlc_lstat( const char *filename, struct stat *buf)
 {
     return vlc_statEx( filename, buf, false );
 }
@@ -472,7 +527,17 @@ int vlc_rename (const char *oldpath, const char *newpath)
     else
         return -1;
 #else
-    return _wrename (wold, wnew);
+    if (_wrename (wold, wnew) && errno == EACCES)
+    {   /* Windows does not allow atomic file replacement */
+        if (_wremove (wnew))
+        {
+            errno = EACCES; /* restore errno */
+            return -1;
+        }
+        if (_wrename (wold, wnew))
+            return -1;
+    }
+    return 0;
 #endif
 
 #endif
@@ -535,6 +600,10 @@ int vlc_mkstemp( char *template )
     return -1;
 }
 
+#ifdef UNDER_CE
+# define dup(fd) (fd, -1)
+#endif
+
 /**
  * Duplicates a file descriptor. The new file descriptor has the close-on-exec
  * descriptor flag set.
@@ -564,3 +633,96 @@ int vlc_dup (int oldfd)
 #endif
     return newfd;
 }
+
+#include <vlc_network.h>
+
+/**
+ * Creates a socket file descriptor. The new file descriptor has the
+ * close-on-exec flag set.
+ * @param pf protocol family
+ * @param type socket type
+ * @param proto network protocol
+ * @param nonblock true to create a non-blocking socket
+ * @return a new file descriptor or -1
+ */
+int vlc_socket (int pf, int type, int proto, bool nonblock)
+{
+    int fd;
+
+#ifdef SOCK_CLOEXEC
+    type |= SOCK_CLOEXEC;
+    if (nonblock)
+        type |= SOCK_NONBLOCK;
+    fd = socket (pf, type, proto);
+    if (fd != -1 || errno != EINVAL)
+        return fd;
+
+    type &= ~(SOCK_CLOEXEC|SOCK_NONBLOCK);
+#endif
+
+    fd = socket (pf, type, proto);
+    if (fd == -1)
+        return -1;
+
+#ifndef WIN32
+    fcntl (fd, F_SETFD, FD_CLOEXEC);
+    if (nonblock)
+        fcntl (fd, F_SETFL, fcntl (fd, F_GETFL, 0) | O_NONBLOCK);
+#else
+    if (nonblock)
+        ioctlsocket (fd, FIONBIO, &(unsigned long){ 1 });
+#endif
+    return fd;
+}
+
+/**
+ * Accepts an inbound connection request on a listening socket.
+ * The new file descriptor has the close-on-exec flag set.
+ * @param lfd listening socket file descriptor
+ * @param addr pointer to the peer address or NULL [OUT]
+ * @param alen pointer to the length of the peer address or NULL [OUT]
+ * @param nonblock whether to put the new socket in non-blocking mode
+ * @return a new file descriptor, or -1 on error.
+ */
+int vlc_accept (int lfd, struct sockaddr *addr, socklen_t *alen, bool nonblock)
+{
+#ifdef HAVE_ACCEPT4
+    int flags = SOCK_CLOEXEC;
+    if (nonblock)
+        flags |= SOCK_NONBLOCK;
+
+    do
+    {
+        int fd = accept4 (lfd, addr, alen, flags);
+        if (fd != -1)
+            return fd;
+    }
+    while (errno == EINTR);
+
+    if (errno != ENOSYS)
+        return -1;
+#endif
+#ifdef WIN32
+    errno = 0;
+#endif
+
+    do
+    {
+        int fd = accept (lfd, addr, alen);
+        if (fd != -1)
+        {
+#ifndef WIN32
+            fcntl (fd, F_SETFD, FD_CLOEXEC);
+            if (nonblock)
+                fcntl (fd, F_SETFL, fcntl (fd, F_GETFL, 0) | O_NONBLOCK);
+#else
+            if (nonblock)
+                ioctlsocket (fd, FIONBIO, &(unsigned long){ 1 });
+#endif
+            return fd;
+        }
+    }
+    while (errno == EINTR);
+
+    return -1;
+}