40 lines
1.1 KiB
Diff
40 lines
1.1 KiB
Diff
#include <sys/capability.h>
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#include <stddef.h>
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#include <stdio.h>
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int
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main (int c, char **argv)
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{
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struct __user_cap_header_struct hdr;
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hdr.version = _LINUX_CAPABILITY_VERSION;
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hdr.pid = 0;
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(void) capget(&hdr, NULL);
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switch (hdr.version) {
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case _LINUX_CAPABILITY_VERSION_1:
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printf("Version 1\n");
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break;
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case _LINUX_CAPABILITY_VERSION_2:
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printf("Version 2\n");
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break;
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default:
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printf("Unknown version\n");
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break;
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}
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return 0;
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}
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--- valgrind-3.7.0/coregrind/m_syswrap/syswrap-linux.c.jj 2010-04-07 08:14:12.000000000 -0400
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+++ valgrind-3.7.0/coregrind/m_syswrap/syswrap-linux.c 2010-04-12 07:24:12.838876000 -0400
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@@ -2212,8 +2212,9 @@ PRE(sys_capget)
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vki_cap_user_header_t, header, vki_cap_user_data_t, data);
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PRE_MEM_READ( "capget(header)", ARG1,
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sizeof(struct __vki_user_cap_header_struct) );
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- PRE_MEM_WRITE( "capget(data)", ARG2,
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- sizeof(struct __vki_user_cap_data_struct) );
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+ if (ARG2 != (Addr)NULL)
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+ PRE_MEM_WRITE( "capget(data)", ARG2,
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+ sizeof(struct __vki_user_cap_data_struct) );
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}
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POST(sys_capget)
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{
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