kaguya
37 lines
610 B
C++
37 lines
610 B
C++
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#include <sys/ptrace.h>
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#include <stdarg.h>
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#include <errno.h>
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#include <bits/ensure.h>
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#include <mlibc/debug.hpp>
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#include <mlibc/linux-sysdeps.hpp>
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long ptrace(int req, ...) {
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va_list ap;
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va_start(ap, req);
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auto pid = va_arg(ap, pid_t);
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auto addr = va_arg(ap, void *);
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auto data = va_arg(ap, void *);
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va_end(ap);
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long ret;
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if(req > 0 && req < 4) {
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data = &ret;
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}
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MLIBC_CHECK_OR_ENOSYS(mlibc::sys_ptrace, -1);
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long out;
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if(int e = mlibc::sys_ptrace(req, pid, addr, data, &out); e) {
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errno = e;
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return -1;
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} else if(req > 0 && req < 4) {
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errno = 0;
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return ret;
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}
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return out;
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}
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