Annotate

util-src/strbitop.c @ 11590:5aafb832c91b

core.portmanager: Fix race condition in initialization of SNI cert map Under some circumstances when hosts and modules are loaded in some certain order, entries end up missing from the SNI map. This manifests in e.g. `curl https://localhost:5281/` giving an error about "unrecognized name". The `service` argument is `nil` when invoked from the "host-activated" event, leading it to iterating over every service. And then it would not be fetching e.g. `http_host` from the config, which explains why https would sometimes not work due to the missing name entry. Because when `service` is included, this limits the iteration to matching entries, while also returning the same value as the `name` loop variable. Because `name == service when service != nil` we can use name instead in the body of the loop.
author Kim Alvefur <zash@zash.se>
date Fri, 28 May 2021 17:09:22 +0200
parent 11175:235537247aa3
child 12469:2b3adaa6d38e
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1 /*
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2 * This project is MIT licensed. Please see the
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3 * COPYING file in the source package for more information.
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4 *
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5 * Copyright (C) 2016 Kim Alvefur
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6 */
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7
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8 #include <lua.h>
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9 #include <lauxlib.h>
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10
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11 #if (LUA_VERSION_NUM == 501)
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12 #define luaL_setfuncs(L, R, N) luaL_register(L, NULL, R)
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13 #endif
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14
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15 /* TODO Deduplicate code somehow */
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16
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17 int strop_and(lua_State *L) {
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18 luaL_Buffer buf;
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19 size_t a, b, i;
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20 const char *str_a = luaL_checklstring(L, 1, &a);
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21 const char *str_b = luaL_checklstring(L, 2, &b);
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22
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23 luaL_buffinit(L, &buf);
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24
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25 if(a == 0 || b == 0) {
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26 lua_settop(L, 1);
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27 return 1;
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28 }
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29
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30 for(i = 0; i < a; i++) {
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31 luaL_addchar(&buf, str_a[i] & str_b[i % b]);
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32 }
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33
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34 luaL_pushresult(&buf);
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35 return 1;
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36 }
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37
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38 int strop_or(lua_State *L) {
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39 luaL_Buffer buf;
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40 size_t a, b, i;
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41 const char *str_a = luaL_checklstring(L, 1, &a);
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42 const char *str_b = luaL_checklstring(L, 2, &b);
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43
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44 luaL_buffinit(L, &buf);
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45
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46 if(a == 0 || b == 0) {
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47 lua_settop(L, 1);
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48 return 1;
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49 }
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50
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51 for(i = 0; i < a; i++) {
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52 luaL_addchar(&buf, str_a[i] | str_b[i % b]);
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53 }
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54
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55 luaL_pushresult(&buf);
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56 return 1;
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57 }
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58
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59 int strop_xor(lua_State *L) {
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60 luaL_Buffer buf;
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61 size_t a, b, i;
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62 const char *str_a = luaL_checklstring(L, 1, &a);
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63 const char *str_b = luaL_checklstring(L, 2, &b);
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64
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65 luaL_buffinit(L, &buf);
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66
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67 if(a == 0 || b == 0) {
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68 lua_settop(L, 1);
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69 return 1;
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70 }
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71
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72 for(i = 0; i < a; i++) {
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73 luaL_addchar(&buf, str_a[i] ^ str_b[i % b]);
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74 }
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75
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76 luaL_pushresult(&buf);
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77 return 1;
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78 }
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79
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80 LUA_API int luaopen_util_strbitop(lua_State *L) {
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81 luaL_Reg exports[] = {
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82 { "sand", strop_and },
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83 { "sor", strop_or },
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84 { "sxor", strop_xor },
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85 { NULL, NULL }
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86 };
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87
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88 lua_newtable(L);
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89 luaL_setfuncs(L, exports, 0);
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90 return 1;
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91 }