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102 lines
2.8 KiB
102 lines
2.8 KiB
--- a/configure.ac
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+++ b/configure.ac
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@@ -912,6 +912,7 @@
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AC_CHECK_FUNCS([ecvt])
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AC_CHECK_FUNCS([fcvt])
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+AC_CHECK_FUNCS([getifaddrs getauxval issetugid __secure_getenv])
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AC_CHECK_FUNC([mkdtemp], [have_mkdtemp=yes])
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@@ -1121,10 +1122,13 @@
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###
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AC_CHECK_HEADERS([crypt.h])
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+AC_CHECK_HEADERS([ifaddrs.h])
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AC_CHECK_HEADERS([inttypes.h])
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AC_CHECK_HEADERS([stdint.h])
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AC_CHECK_HEADERS([stdlib.h])
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AC_CHECK_HEADERS([wchar.h])
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+AC_CHECK_HEADERS([net/if.h])
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+AC_CHECK_HEADERS([sys/auxv.h])
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AC_CHECK_HEADERS([sys/inttypes.h])
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AC_CHECK_HEADERS([sys/io.h])
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AC_CHECK_HEADERS([sys/param.h]) # Required to make the sys/user.h check work correctly on FreeBSD
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--- a/lib/misc/idLinux.c
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+++ b/lib/misc/idLinux.c
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@@ -27,12 +27,9 @@
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#include <sys/syscall.h>
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#include <string.h>
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#include <unistd.h>
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-#ifdef __linux__
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-#if defined(__GLIBC__) && \
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- (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 16))
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+#ifdef HAVE_SYS_AUXV_H
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#include <sys/auxv.h>
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#endif
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-#endif
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#ifdef __APPLE__
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#include <sys/socket.h>
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#include <TargetConditionals.h>
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@@ -1025,31 +1022,32 @@
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static Bool
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IdIsSetUGid(void)
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{
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-#if defined(__ANDROID__)
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- /* Android does not have a secure_getenv, so be conservative. */
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- return TRUE;
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-#else
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/*
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* We use __secure_getenv, which returns NULL if the binary is
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- * setuid or setgid. Alternatives include,
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+ * setuid or setgid, when issetugid or getauxval(AT_SECURE) is not
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+ * available. Alternatives include,
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*
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- * a) getauxval(AT_SECURE); not available until glibc 2.16.
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- * b) __libc_enable_secure; may not be exported.
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+ * a) issetugid(); not (yet?) available in glibc.
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+ * b) getauxval(AT_SECURE); not available until glibc 2.16.
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+ * c) __libc_enable_secure; may not be exported.
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*
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- * Use (a) when we are based on glibc 2.16, or newer.
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+ * Use (b) when we are based on glibc 2.16, or newer.
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*/
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-#if defined(__GLIBC__) && \
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- (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 16))
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+#if HAVE_ISSETUGID
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+ return issetugid();
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+#elif HAVE_GETAUXVAL
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return getauxval(AT_SECURE) != 0;
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-#else
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+#elif HAVE___SECURE_GETENV
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static const char envName[] = "VMW_SETUGID_TEST";
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if (setenv(envName, "1", TRUE) == -1) {
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return TRUE; /* Conservative */
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}
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return __secure_getenv(envName) == NULL;
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-#endif
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+#else
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+ /* Android does not have a secure_getenv, so be conservative. */
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+ return TRUE;
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#endif
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}
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#endif
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--- a/lib/nicInfo/nicInfoPosix.c
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+++ b/lib/nicInfo/nicInfoPosix.c
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@@ -35,9 +35,13 @@
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#include <sys/stat.h>
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#include <errno.h>
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#include <limits.h>
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-#if defined(__FreeBSD__) || defined(__APPLE__)
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+#if HAVE_SYS_SYSCTL_H
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# include <sys/sysctl.h>
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+#endif
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+#if HAVE_IFADDRS_H
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# include <ifaddrs.h>
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+#endif
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+#if HAVE_NET_IF_H
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# include <net/if.h>
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#endif
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#ifndef NO_DNET
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