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Rewrite Linux pledge() code so it can be a payload

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It's now possible to build our pledge() polyfill as a dynamic shared
object that can be injected into a glibc executable using LD_PRELOAD
This commit is contained in:
Justine Tunney 2022-08-08 11:41:08 -07:00
parent 7bd4179b9b
commit 0277d7d6e9
37 changed files with 1980 additions and 1600 deletions
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16
libc/calls/pledge.h Normal file
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#ifndef COSMOPOLITAN_LIBC_CALLS_PLEDGE_H_
#define COSMOPOLITAN_LIBC_CALLS_PLEDGE_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
enum PledgeMode {
kPledgeModeKillThread,
kPledgeModeKillProcess,
kPledgeModeErrno,
};
extern enum PledgeMode __pledge_mode;
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_CALLS_PLEDGE_H_ */