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programming: Sync gccrun and disasm from my locker (oops)
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1 #!/bin/sh
2
3 if [ "$#" = 0 ]; then
4     echo "usage: $0 [-w wrapper] <C code...>" >&2
5     exit 1
6 fi
7
8 if [ "$1" = -w ]; then
9     wrapper="$2"
10     shift 2
11 fi
12
13 f=$(mktemp -d -t gccrun.XXXXXXXX) || exit 1
14 cat > "$f/command.c" << EOF
15 #define _GNU_SOURCE
16 #include <sys/types.h>
17 #include <sys/stat.h>
18 #include <sys/mman.h>
19 #include <sys/ptrace.h>
20 #include <sys/syscall.h>
21 #include <arpa/inet.h>
22 #include <errno.h>
23 #include <fcntl.h>
24 #include <signal.h>
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <string.h>
28 #include <unistd.h>
29
30 int
31 main(int argc, char *argv[], char *envp[])
32 {
33         $1;
34         return 0;
35 }
36 EOF
37 shift
38 if ! gcc -o "$f/command" "$f/command.c" $@; then
39     exit 1
40 fi
41 if [ -n "$wrapper" ]; then
42     $wrapper "$f/command"
43 else
44     "$f/command"
45 fi
46 r=$?
47 rm -r "$f"
48 exit $r