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| author | Robin Burchell <robin+git@viroteck.net> | 2019-05-26 01:18:04 +0200 |
|---|---|---|
| committer | Andreas Kling <awesomekling@gmail.com> | 2019-05-26 01:32:05 +0200 |
| commit | c6e79bd53a37aa0d9fb7c610d7d251a9e1b0a11d (patch) | |
| tree | e77ed0234988035b4f1df9038cf190c94d6b4cdd /Kernel/Process.cpp | |
| parent | 90dbf689c006f3335aaec1129d01f1f921e2122c (diff) | |
| download | serenity-c6e79bd53a37aa0d9fb7c610d7d251a9e1b0a11d.zip | |
Kernel: Support O_APPEND
As per the manpage, this acts as a transparent lseek() before write.
Diffstat (limited to 'Kernel/Process.cpp')
| -rw-r--r-- | Kernel/Process.cpp | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/Kernel/Process.cpp b/Kernel/Process.cpp index d8962144a5..4725c3bf52 100644 --- a/Kernel/Process.cpp +++ b/Kernel/Process.cpp @@ -861,6 +861,13 @@ ssize_t Process::do_write(FileDescriptor& descriptor, const byte* data, int data return -EAGAIN; } + if (descriptor.should_append()) { +#ifdef IO_DEBUG + dbgprintf("seeking to end (O_APPEND)\n"); +#endif + descriptor.seek(0, SEEK_END); + } + while (nwritten < data_size) { #ifdef IO_DEBUG dbgprintf("while %u < %u\n", nwritten, size); @@ -1118,8 +1125,8 @@ int Process::sys$open(const char* path, int options, mode_t mode) auto descriptor = result.value(); if (options & O_DIRECTORY && !descriptor->is_directory()) return -ENOTDIR; // FIXME: This should be handled by VFS::open. - if (options & O_NONBLOCK) - descriptor->set_blocking(false); + descriptor->set_blocking(!(options & O_NONBLOCK)); + descriptor->set_should_append(options & O_APPEND); dword flags = (options & O_CLOEXEC) ? FD_CLOEXEC : 0; m_fds[fd].set(move(descriptor), flags); return fd; |