diff options
Diffstat (limited to 'dev-vcs/cvs/files/cvs-1.12.12-block-requests.patch')
| -rw-r--r-- | dev-vcs/cvs/files/cvs-1.12.12-block-requests.patch | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/dev-vcs/cvs/files/cvs-1.12.12-block-requests.patch b/dev-vcs/cvs/files/cvs-1.12.12-block-requests.patch new file mode 100644 index 000000000000..9c9b49db8f62 --- /dev/null +++ b/dev-vcs/cvs/files/cvs-1.12.12-block-requests.patch @@ -0,0 +1,140 @@ +Author: Robin H. Johnson <robbat2@gentoo.org> +Date: 2006-08-09 + +This patch allows a CVS server to deny usage of specific commands, based on +input in the environment. + +Just set the CVS_BLOCK_REQUESTS env var with all of the commands you want, +seperated by spaces. Eg: +CVS_BLOCK_REQUESTS="Gzip-stream gzip-file-contents" +would block ALL usage of compression. + +Please see the array 'struct request requests[]' in src/server.c for a full +list of commands. + +Please note that if you block any commands marked as RQ_ESSENTIAL, CVS clients +may fail! (This includes 'ci'!). + +See the companion cvs-custom.c for a wrapper that can enforce the environment variable for pserver setups. + +Signed-off-by: Robin H. Johnson <robbat2@gentoo.org> + +diff -Nuar --exclude '*~' -U 10 cvs-1.12.12.orig/src/server.c cvs-1.12.12/src/server.c +--- cvs-1.12.12.orig/src/server.c 2005-04-14 14:13:29.000000000 +0000 ++++ cvs-1.12.12/src/server.c 2006-08-09 01:40:44.000000000 +0000 +@@ -5836,43 +5836,90 @@ + #undef REQ_LINE + }; + #endif /* SERVER_SUPPORT or CLIENT_SUPPORT */ + + + + #ifdef SERVER_SUPPORT + /* + * This server request is not ignored by the secondary. + */ ++ ++/* Hack by Robin H. Johnson <robbat2@gentoo.org>. ++ * Allow the server ENV to specify what request types are to be ignored. ++ */ ++ ++static char blocked_requests[BUFSIZ] = " "; ++ ++static void build_blocked_requests() { ++ char *tmp = getenv("CVS_BLOCK_REQUESTS"); ++ ++ if (tmp != NULL && strlen(tmp) > 0) { ++ // move to our custom buffer ++ strncat(blocked_requests, tmp, sizeof(blocked_requests)-strlen(blocked_requests)); ++ //add a space on the end as well for searching ++ strncat(blocked_requests, " ", sizeof(blocked_requests)-strlen(blocked_requests)); ++ } ++ ++ // now blocked_requests contains the list of every request that we do not ++ // want to serve ++} ++ ++// returns 0 if we should serve this request ++// use as if(checker(FOO)) continue; ++static int serve_valid_requests_checker(char *reqname) { ++ char needle[BUFSIZ] = " "; ++ char *tmp; ++ ++ if(!blocked_requests || strlen(blocked_requests) < 2) ++ return 0; ++ ++ // we want to look for ' 'reqname' ' ++ snprintf(needle, sizeof(needle), " %s ", reqname); ++ ++ // now do the search ++ tmp = strstr(blocked_requests, needle); ++ ++ if (tmp != NULL) ++ return 1; ++ ++ return 0; ++ ++} ++ + static void + serve_valid_requests (char *arg) + { + struct request *rq; + + /* Since this is processed in the first pass, don't reprocess it in the + * second. + * + * We still print errors since new errors could have been generated in the + * second pass. + */ + if (print_pending_error () + #ifdef PROXY_SUPPORT + || reprocessing + #endif /* PROXY_SUPPORT */ + ) + return; ++ ++ build_blocked_requests(); + + buf_output0 (buf_to_net, "Valid-requests"); + for (rq = requests; rq->name != NULL; rq++) + { + if (rq->func != NULL) + { ++ if(serve_valid_requests_checker(rq->name)) ++ continue; + buf_append_char (buf_to_net, ' '); + buf_output0 (buf_to_net, rq->name); + } + } + buf_output0 (buf_to_net, "\nok\n"); + + /* The client is waiting for the list of valid requests, so we + must send the output now. */ + buf_flush (buf_to_net, 1); + } +@@ -6353,20 +6400,24 @@ + cmd += len; + else if (cmd[len] == ' ') + cmd += len + 1; + else + /* + * The first len characters match, but it's a different + * command. e.g. the command is "cooperate" but we matched + * "co". + */ + continue; ++ // Ignore commands that we are supposed to ignore. ++ if(serve_valid_requests_checker(rq->name)) ++ continue; ++ + + if (!(rq->flags & RQ_ROOTLESS) + && current_parsed_root == NULL) + { + /* For commands which change the way in which data + is sent and received, for example Gzip-stream, + this does the wrong thing. Since the client + assumes that everything is being compressed, + unconditionally, there is no way to give this + error to the client without turning on |