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
25 lines
512 B
C
25 lines
512 B
C
#include <sys/cdefs.h>
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#include "namespace.h"
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#include <lib.h>
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#ifdef __weak_alias
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__weak_alias(truncate, _truncate)
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#endif
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#include <minix/u64.h>
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#include <string.h>
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#include <unistd.h>
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int truncate(const char *_path, off_t _length)
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{
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message m;
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memset(&m, 0, sizeof(m));
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m.VFS_TRUNCATE_NAME = (char *) __UNCONST(_path);
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m.VFS_TRUNCATE_LEN = strlen(_path)+1;
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m.VFS_TRUNCATE_OFF_LO = ex64lo(_length);
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m.VFS_TRUNCATE_OFF_HI = ex64hi(_length);
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return(_syscall(VFS_PROC_NR, VFS_TRUNCATE, &m));
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}
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