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| mapping make_mapping(string *f) | { | mapping foo=([ ]); | string s, a, b; | foreach(f, s) | { | sscanf(s, "%s=%s", a, b); | foo[a]=b; | } | return foo; | } | | int low_spawne(string s,string *args, mapping|array env, object stdin, | object stdout, object stderr, void|string wd) | { | object p; | int pid; | string t; | | if(arrayp(env)) | env = make_mapping(env); | if(!mappingp(env)) | env=([]); | | | stdin->dup2(File("stdin")); | stdout->dup2(File("stdout")); | stderr->dup2(File("stderr")); | if(stringp(wd) && sizeof(wd)) | cd(wd); | exece(s, args, env); | perror(sprintf("Spawne: Failed to exece %s\n", s)); | exit(0); | } | | int spawne(string s,string *args, mapping|array env, object stdin, | object stdout, object stderr, void|string wd, void|array (int) uid) | { | int pid, *olduid = allocate(2, "int"); | if(pid=fork()) | return pid; | if(arrayp(uid) && sizeof(uid) == 2) | { | #if efun(seteuid) | olduid = ({ geteuid(), getegid() }); | seteuid(0); | #endif | #if efun(setegid) | setegid(getgid()); | #endif | setgid(uid[1]); | setuid(uid[0]); | if(!getuid()) | { | #if efun(seteuid) | setgid(olduid[1]); | setuid(olduid[0]); | #else | setgid(-1); | setuid(-1); | #endif | } else { | olduid = ({ geteuid(), getegid() }); | #if efun(seteuid) | seteuid(0); | #endif | #if efun(setegid) | setegid(getgid()); | #endif | setgid(olduid[1]); | setuid(olduid[0]); | } | } | catch(low_spawne(s, args, env, stdin, stdout, stderr, wd)); | exit(0); | } | | void create() | { | add_constant("spawne",spawne); | add_constant("perror",werror); | } | |
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