30 lines
636 B
C
30 lines
636 B
C
#include <errno.h>
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#include <fs/context.h>
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#include <fs/file.h>
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#include <fs/status.h>
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extern kern_status_t fs_msg_write(
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xpc_context_t *xpc,
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const xpc_endpoint_t *sender,
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const xpc_buffer_t *data,
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int *out_err,
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size_t *out_nr_written,
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void *arg)
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{
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struct fs_context *ctx = arg;
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struct fs_file *f = fs_context_get_file(ctx, sender->e_port);
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if (!f) {
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*out_err = EBADF;
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return KERN_OK;
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}
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size_t start = fs_file_get_cursor(f);
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enum fs_status status = fs_file_write(f, data, data->buf_len);
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size_t end = fs_file_get_cursor(f);
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*out_err = fs_status_to_errno(status);
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*out_nr_written = end - start;
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return KERN_OK;
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}
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