23 lines
614 B
C
23 lines
614 B
C
#include <kernel/fs/vfs.h>
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#include <kernel/process.h>
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ssize_t sys_pwrite(int fd, const void *buf, size_t count, off_t offset)
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{
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extern struct process *process_current;
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// Check fd
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if (fd < 0 || fd - 3 >= PROCESS_NB_OPEN_FILE)
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return (-1);
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// Check virtual file (TTY) and open it if needed
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if (fd < 3) {
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if (process_current->tty.private == NULL &&
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vfs_open(&process_current->tty, "/dev/tty", O_RDWR) != 0)
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return (-1);
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return (vfs_pwrite(&process_current->tty, buf, count, offset));
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}
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// call VFS read primitive
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return (vfs_pwrite(&process_current->opfile[fd].file, buf, count, offset));
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}
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