41 lines
857 B
C
41 lines
857 B
C
#include <sys/cdefs.h>
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#include "namespace.h"
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#include <lib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <stdarg.h>
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int fcntl(int fd, int cmd, ...)
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{
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va_list argp;
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message m;
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va_start(argp, cmd);
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/* Set up for the sensible case where there is no variable parameter. This
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* covers F_GETFD, F_GETFL and invalid commands.
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*/
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memset(&m, 0, sizeof(m));
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/* Adjust for the stupid cases. */
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switch(cmd) {
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case F_DUPFD:
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case F_SETFD:
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case F_SETFL:
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m.m_lc_vfs_fcntl.arg_int = va_arg(argp, int);
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break;
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case F_GETLK:
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case F_SETLK:
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case F_SETLKW:
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case F_FREESP:
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m.m_lc_vfs_fcntl.arg_ptr = va_arg(argp, struct flock *);
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break;
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}
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/* Clean up and make the system call. */
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va_end(argp);
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m.m_lc_vfs_fcntl.fd = fd;
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m.m_lc_vfs_fcntl.cmd = cmd;
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return(_syscall(VFS_PROC_NR, VFS_FCNTL, &m));
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}
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