24ec0d73b5
- introduce new call numbers, names, and field aliases; - initialize request messages to zero for all ABI calls; - format callnr.h in the same way as com.h; - redo call tables in both servers; - remove param.h namespace pollution in the servers; - make brk(2) go to VM directly, rather than through PM; - remove obsolete BRK, UTIME, and WAIT calls; - clean up path copying routine in VFS; - move remaining system calls from libminlib to libc; - correct some errno-related mistakes in libc routines. Change-Id: I2d8ec5d061cd7e0b30c51ffd77aa72ebf84e2565
46 lines
902 B
C
46 lines
902 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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#ifdef __weak_alias
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__weak_alias(fcntl, _fcntl)
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#endif
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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.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.VFS_FCNTL_ARG_PTR = (char *) 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.VFS_FCNTL_FD = fd;
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m.VFS_FCNTL_CMD = cmd;
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return(_syscall(VFS_PROC_NR, VFS_FCNTL, &m));
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}
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