1 | #include <stdio.h> |
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2 | #include <stdlib.h> |
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3 | #include <string.h> |
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4 | #include <sys/types.h> |
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5 | #include <sys/stat.h> |
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6 | #include <errno.h> |
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7 | #define OWL_PERL |
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8 | #include "owl.h" |
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9 | |
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10 | extern XS(boot_BarnOwl); |
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11 | extern XS(boot_DynaLoader); |
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12 | /* extern XS(boot_DBI); */ |
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13 | |
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14 | void owl_perl_xs_init(pTHX) /* noproto */ |
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15 | { |
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16 | const char *file = __FILE__; |
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17 | dXSUB_SYS; |
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18 | { |
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19 | newXS("BarnOwl::bootstrap", boot_BarnOwl, file); |
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20 | newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, file); |
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21 | } |
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22 | } |
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23 | |
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24 | |
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25 | SV *owl_new_sv(const char * str) |
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26 | { |
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27 | SV *ret = newSVpv(str, 0); |
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28 | if (is_utf8_string((const U8 *)str, strlen(str))) { |
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29 | SvUTF8_on(ret); |
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30 | } else { |
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31 | char *escape = owl_escape_highbit(str); |
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32 | owl_function_error("Internal error! Non-UTF-8 string encountered:\n%s", escape); |
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33 | g_free(escape); |
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34 | } |
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35 | return ret; |
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36 | } |
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37 | |
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38 | AV *owl_new_av(const owl_list *l, SV *(*to_sv)(const void *)) |
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39 | { |
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40 | AV *ret; |
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41 | int i; |
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42 | void *element; |
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43 | |
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44 | ret = newAV(); |
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45 | |
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46 | for (i = 0; i < owl_list_get_size(l); i++) { |
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47 | element = owl_list_get_element(l, i); |
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48 | av_push(ret, to_sv(element)); |
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49 | } |
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50 | |
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51 | return ret; |
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52 | } |
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53 | |
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54 | HV *owl_new_hv(const owl_dict *d, SV *(*to_sv)(const void *)) |
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55 | { |
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56 | HV *ret; |
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57 | owl_list l; |
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58 | const char *key; |
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59 | void *element; |
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60 | int i; |
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61 | |
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62 | ret = newHV(); |
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63 | |
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64 | /* TODO: add an iterator-like interface to owl_dict */ |
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65 | owl_list_create(&l); |
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66 | owl_dict_get_keys(d, &l); |
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67 | for (i = 0; i < owl_list_get_size(&l); i++) { |
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68 | key = owl_list_get_element(&l, i); |
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69 | element = owl_dict_find_element(d, key); |
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70 | (void)hv_store(ret, key, strlen(key), to_sv(element), 0); |
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71 | } |
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72 | owl_list_cleanup(&l, g_free); |
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73 | |
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74 | return ret; |
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75 | } |
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76 | |
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77 | SV *owl_perlconfig_message2hashref(const owl_message *m) |
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78 | { |
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79 | HV *h, *stash; |
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80 | SV *hr; |
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81 | const char *type; |
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82 | char *ptr, *utype, *blessas; |
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83 | int i, j; |
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84 | const owl_pair *pair; |
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85 | const owl_filter *wrap; |
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86 | |
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87 | if (!m) return &PL_sv_undef; |
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88 | wrap = owl_global_get_filter(&g, "wordwrap"); |
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89 | if(!wrap) { |
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90 | owl_function_error("wrap filter is not defined"); |
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91 | return &PL_sv_undef; |
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92 | } |
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93 | |
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94 | h = newHV(); |
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95 | |
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96 | #define MSG2H(h,field) (void)hv_store(h, #field, strlen(#field), \ |
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97 | owl_new_sv(owl_message_get_##field(m)), 0) |
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98 | |
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99 | if (owl_message_is_type_zephyr(m) |
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100 | && owl_message_is_direction_in(m)) { |
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101 | /* Handle zephyr-specific fields... */ |
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102 | AV *av_zfields; |
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103 | |
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104 | av_zfields = newAV(); |
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105 | j=owl_zephyr_get_num_fields(owl_message_get_notice(m)); |
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106 | for (i=0; i<j; i++) { |
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107 | ptr=owl_zephyr_get_field_as_utf8(owl_message_get_notice(m), i+1); |
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108 | av_push(av_zfields, owl_new_sv(ptr)); |
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109 | g_free(ptr); |
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110 | } |
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111 | (void)hv_store(h, "fields", strlen("fields"), newRV_noinc((SV*)av_zfields), 0); |
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112 | |
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113 | (void)hv_store(h, "auth", strlen("auth"), |
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114 | owl_new_sv(owl_zephyr_get_authstr(owl_message_get_notice(m))),0); |
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115 | } |
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116 | |
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117 | j=owl_list_get_size(&(m->attributes)); |
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118 | for(i=0; i<j; i++) { |
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119 | pair=owl_list_get_element(&(m->attributes), i); |
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120 | (void)hv_store(h, owl_pair_get_key(pair), strlen(owl_pair_get_key(pair)), |
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121 | owl_new_sv(owl_pair_get_value(pair)),0); |
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122 | } |
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123 | |
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124 | MSG2H(h, type); |
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125 | MSG2H(h, direction); |
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126 | MSG2H(h, class); |
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127 | MSG2H(h, instance); |
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128 | MSG2H(h, sender); |
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129 | MSG2H(h, realm); |
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130 | MSG2H(h, recipient); |
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131 | MSG2H(h, opcode); |
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132 | MSG2H(h, hostname); |
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133 | MSG2H(h, body); |
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134 | MSG2H(h, login); |
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135 | MSG2H(h, zsig); |
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136 | MSG2H(h, zwriteline); |
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137 | if (owl_message_get_header(m)) { |
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138 | MSG2H(h, header); |
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139 | } |
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140 | (void)hv_store(h, "time", strlen("time"), owl_new_sv(owl_message_get_timestr(m)),0); |
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141 | (void)hv_store(h, "unix_time", strlen("unix_time"), newSViv(m->time), 0); |
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142 | (void)hv_store(h, "id", strlen("id"), newSViv(owl_message_get_id(m)),0); |
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143 | (void)hv_store(h, "deleted", strlen("deleted"), newSViv(owl_message_is_delete(m)),0); |
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144 | (void)hv_store(h, "private", strlen("private"), newSViv(owl_message_is_private(m)),0); |
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145 | (void)hv_store(h, "should_wordwrap", |
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146 | strlen("should_wordwrap"), newSViv( |
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147 | owl_filter_message_match(wrap, m)),0); |
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148 | |
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149 | type = owl_message_get_type(m); |
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150 | if(!type || !*type) type = "generic"; |
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151 | utype = g_strdup(type); |
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152 | utype[0] = toupper(type[0]); |
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153 | blessas = g_strdup_printf("BarnOwl::Message::%s", utype); |
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154 | |
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155 | hr = newRV_noinc((SV*)h); |
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156 | stash = gv_stashpv(blessas,0); |
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157 | if(!stash) { |
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158 | owl_function_error("No such class: %s for message type %s", blessas, owl_message_get_type(m)); |
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159 | stash = gv_stashpv("BarnOwl::Message", 1); |
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160 | } |
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161 | hr = sv_bless(hr,stash); |
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162 | g_free(utype); |
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163 | g_free(blessas); |
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164 | return hr; |
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165 | } |
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166 | |
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167 | SV *owl_perlconfig_curmessage2hashref(void) |
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168 | { |
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169 | int curmsg; |
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170 | const owl_view *v; |
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171 | v=owl_global_get_current_view(&g); |
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172 | if (owl_view_get_size(v) < 1) { |
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173 | return &PL_sv_undef; |
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174 | } |
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175 | curmsg=owl_global_get_curmsg(&g); |
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176 | return owl_perlconfig_message2hashref(owl_view_get_element(v, curmsg)); |
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177 | } |
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178 | |
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179 | /* XXX TODO: Messages should round-trip properly between |
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180 | message2hashref and hashref2message. Currently we lose |
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181 | zephyr-specific properties stored in the ZNotice_t |
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182 | |
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183 | This has been somewhat addressed, but is still not lossless. |
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184 | */ |
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185 | owl_message * owl_perlconfig_hashref2message(SV *msg) |
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186 | { |
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187 | owl_message * m; |
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188 | HE * ent; |
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189 | I32 len; |
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190 | const char *key,*val; |
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191 | HV * hash; |
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192 | struct tm tm; |
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193 | |
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194 | hash = (HV*)SvRV(msg); |
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195 | |
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196 | m = g_new(owl_message, 1); |
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197 | owl_message_init(m); |
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198 | |
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199 | hv_iterinit(hash); |
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200 | while((ent = hv_iternext(hash))) { |
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201 | key = hv_iterkey(ent, &len); |
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202 | val = SvPV_nolen(hv_iterval(hash, ent)); |
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203 | if(!strcmp(key, "type")) { |
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204 | owl_message_set_type(m, val); |
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205 | } else if(!strcmp(key, "direction")) { |
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206 | owl_message_set_direction(m, owl_message_parse_direction(val)); |
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207 | } else if(!strcmp(key, "private")) { |
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208 | SV * v = hv_iterval(hash, ent); |
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209 | if(SvTRUE(v)) { |
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210 | owl_message_set_isprivate(m); |
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211 | } |
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212 | } else if (!strcmp(key, "hostname")) { |
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213 | owl_message_set_hostname(m, val); |
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214 | } else if (!strcmp(key, "zwriteline")) { |
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215 | owl_message_set_zwriteline(m, val); |
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216 | } else if (!strcmp(key, "time")) { |
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217 | g_free(m->timestr); |
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218 | m->timestr = g_strdup(val); |
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219 | strptime(val, "%a %b %d %T %Y", &tm); |
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220 | m->time = mktime(&tm); |
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221 | } else { |
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222 | owl_message_set_attribute(m, key, val); |
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223 | } |
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224 | } |
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225 | if(owl_message_is_type_admin(m)) { |
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226 | if(!owl_message_get_attribute_value(m, "adminheader")) |
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227 | owl_message_set_attribute(m, "adminheader", ""); |
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228 | } |
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229 | #ifdef HAVE_LIBZEPHYR |
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230 | if (owl_message_is_type_zephyr(m)) { |
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231 | ZNotice_t *n = &(m->notice); |
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232 | n->z_kind = ACKED; |
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233 | n->z_port = 0; |
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234 | n->z_auth = ZAUTH_NO; |
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235 | n->z_checked_auth = 0; |
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236 | n->z_class = zstr(owl_message_get_class(m)); |
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237 | n->z_class_inst = zstr(owl_message_get_instance(m)); |
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238 | n->z_opcode = zstr(owl_message_get_opcode(m)); |
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239 | n->z_sender = zstr(owl_message_get_sender(m)); |
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240 | n->z_recipient = zstr(owl_message_get_recipient(m)); |
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241 | n->z_default_format = zstr("[zephyr created from perl]"); |
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242 | n->z_multinotice = zstr("[zephyr created from perl]"); |
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243 | n->z_num_other_fields = 0; |
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244 | n->z_message = g_strdup_printf("%s%c%s", owl_message_get_zsig(m), '\0', owl_message_get_body(m)); |
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245 | n->z_message_len = strlen(owl_message_get_zsig(m)) + strlen(owl_message_get_body(m)) + 1; |
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246 | } |
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247 | #endif |
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248 | return m; |
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249 | } |
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250 | |
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251 | /* Calls in a scalar context, passing it a hash reference. |
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252 | If return value is non-null, caller must free. */ |
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253 | char *owl_perlconfig_call_with_message(const char *subname, const owl_message *m) |
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254 | { |
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255 | dSP ; |
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256 | int count; |
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257 | SV *msgref, *srv; |
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258 | char *out; |
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259 | |
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260 | ENTER ; |
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261 | SAVETMPS; |
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262 | |
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263 | PUSHMARK(SP) ; |
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264 | msgref = owl_perlconfig_message2hashref(m); |
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265 | XPUSHs(sv_2mortal(msgref)); |
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266 | PUTBACK ; |
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267 | |
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268 | count = call_pv(subname, G_SCALAR|G_EVAL); |
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269 | |
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270 | SPAGAIN ; |
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271 | |
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272 | if (SvTRUE(ERRSV)) { |
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273 | owl_function_error("Perl Error: '%s'", SvPV_nolen(ERRSV)); |
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274 | /* and clear the error */ |
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275 | sv_setsv (ERRSV, &PL_sv_undef); |
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276 | } |
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277 | |
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278 | if (count != 1) { |
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279 | fprintf(stderr, "bad perl! no biscuit! returned wrong count!\n"); |
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280 | abort(); |
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281 | } |
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282 | |
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283 | srv = POPs; |
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284 | |
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285 | if (srv) { |
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286 | out = g_strdup(SvPV_nolen(srv)); |
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287 | } else { |
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288 | out = NULL; |
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289 | } |
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290 | |
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291 | PUTBACK ; |
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292 | FREETMPS ; |
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293 | LEAVE ; |
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294 | |
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295 | return out; |
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296 | } |
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297 | |
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298 | |
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299 | /* Calls a method on a perl object representing a message. |
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300 | If the return value is non-null, the caller must free it. |
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301 | */ |
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302 | char * owl_perlconfig_message_call_method(const owl_message *m, const char *method, int argc, const char ** argv) |
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303 | { |
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304 | dSP; |
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305 | unsigned int count, i; |
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306 | SV *msgref, *srv; |
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307 | char *out; |
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308 | |
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309 | msgref = owl_perlconfig_message2hashref(m); |
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310 | |
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311 | ENTER; |
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312 | SAVETMPS; |
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313 | |
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314 | PUSHMARK(SP); |
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315 | XPUSHs(sv_2mortal(msgref)); |
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316 | for(i=0;i<argc;i++) { |
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317 | XPUSHs(sv_2mortal(owl_new_sv(argv[i]))); |
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318 | } |
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319 | PUTBACK; |
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320 | |
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321 | count = call_method(method, G_SCALAR|G_EVAL); |
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322 | |
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323 | SPAGAIN; |
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324 | |
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325 | if(count != 1) { |
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326 | fprintf(stderr, "perl returned wrong count %u\n", count); |
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327 | abort(); |
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328 | } |
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329 | |
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330 | if (SvTRUE(ERRSV)) { |
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331 | owl_function_error("Error: '%s'", SvPV_nolen(ERRSV)); |
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332 | /* and clear the error */ |
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333 | sv_setsv (ERRSV, &PL_sv_undef); |
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334 | } |
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335 | |
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336 | srv = POPs; |
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337 | |
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338 | if (srv) { |
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339 | out = g_strdup(SvPV_nolen(srv)); |
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340 | } else { |
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341 | out = NULL; |
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342 | } |
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343 | |
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344 | PUTBACK; |
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345 | FREETMPS; |
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346 | LEAVE; |
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347 | |
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348 | return out; |
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349 | } |
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350 | |
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351 | |
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352 | char *owl_perlconfig_initperl(const char * file, int *Pargc, char ***Pargv, char *** Penv) |
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353 | { |
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354 | int ret; |
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355 | PerlInterpreter *p; |
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356 | char *err; |
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357 | const char *args[4] = {"", "-e", "0;", NULL}; |
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358 | AV *inc; |
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359 | char *path; |
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360 | |
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361 | /* create and initialize interpreter */ |
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362 | PERL_SYS_INIT3(Pargc, Pargv, Penv); |
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363 | p=perl_alloc(); |
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364 | owl_global_set_perlinterp(&g, p); |
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365 | perl_construct(p); |
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366 | |
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367 | PL_exit_flags |= PERL_EXIT_DESTRUCT_END; |
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368 | |
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369 | owl_global_set_no_have_config(&g); |
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370 | |
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371 | ret=perl_parse(p, owl_perl_xs_init, 2, (char **)args, NULL); |
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372 | if (ret || SvTRUE(ERRSV)) { |
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373 | err=g_strdup(SvPV_nolen(ERRSV)); |
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374 | sv_setsv(ERRSV, &PL_sv_undef); /* and clear the error */ |
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375 | return(err); |
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376 | } |
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377 | |
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378 | ret=perl_run(p); |
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379 | if (ret || SvTRUE(ERRSV)) { |
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380 | err=g_strdup(SvPV_nolen(ERRSV)); |
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381 | sv_setsv(ERRSV, &PL_sv_undef); /* and clear the error */ |
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382 | return(err); |
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383 | } |
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384 | |
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385 | owl_global_set_have_config(&g); |
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386 | |
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387 | /* create legacy variables */ |
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388 | get_sv("BarnOwl::id", TRUE); |
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389 | get_sv("BarnOwl::class", TRUE); |
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390 | get_sv("BarnOwl::instance", TRUE); |
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391 | get_sv("BarnOwl::recipient", TRUE); |
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392 | get_sv("BarnOwl::sender", TRUE); |
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393 | get_sv("BarnOwl::realm", TRUE); |
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394 | get_sv("BarnOwl::opcode", TRUE); |
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395 | get_sv("BarnOwl::zsig", TRUE); |
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396 | get_sv("BarnOwl::msg", TRUE); |
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397 | get_sv("BarnOwl::time", TRUE); |
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398 | get_sv("BarnOwl::host", TRUE); |
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399 | get_av("BarnOwl::fields", TRUE); |
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400 | |
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401 | if(file) { |
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402 | SV * cfg = get_sv("BarnOwl::configfile", TRUE); |
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403 | sv_setpv(cfg, file); |
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404 | } |
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405 | |
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406 | sv_setpv(get_sv("BarnOwl::VERSION", TRUE), OWL_VERSION_STRING); |
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407 | |
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408 | /* Add the system lib path to @INC */ |
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409 | inc = get_av("INC", 0); |
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410 | path = g_strdup_printf("%s/lib", owl_get_datadir()); |
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411 | av_unshift(inc, 1); |
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412 | av_store(inc, 0, owl_new_sv(path)); |
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413 | g_free(path); |
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414 | |
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415 | eval_pv("use BarnOwl;", FALSE); |
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416 | |
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417 | if (SvTRUE(ERRSV)) { |
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418 | err=g_strdup(SvPV_nolen(ERRSV)); |
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419 | sv_setsv (ERRSV, &PL_sv_undef); /* and clear the error */ |
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420 | return(err); |
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421 | } |
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422 | |
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423 | /* check if we have the formatting function */ |
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424 | if (owl_perlconfig_is_function("BarnOwl::format_msg")) { |
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425 | owl_global_set_config_format(&g, 1); |
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426 | } |
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427 | |
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428 | return(NULL); |
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429 | } |
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430 | |
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431 | /* returns whether or not a function exists */ |
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432 | int owl_perlconfig_is_function(const char *fn) { |
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433 | if (get_cv(fn, FALSE)) return(1); |
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434 | else return(0); |
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435 | } |
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436 | |
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437 | /* caller is responsible for freeing returned string */ |
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438 | char *owl_perlconfig_execute(const char *line) |
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439 | { |
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440 | STRLEN len; |
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441 | SV *response; |
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442 | char *out; |
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443 | |
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444 | if (!owl_global_have_config(&g)) return NULL; |
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445 | |
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446 | ENTER; |
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447 | SAVETMPS; |
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448 | /* execute the subroutine */ |
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449 | response = eval_pv(line, FALSE); |
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450 | |
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451 | if (SvTRUE(ERRSV)) { |
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452 | owl_function_error("Perl Error: '%s'", SvPV_nolen(ERRSV)); |
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453 | sv_setsv (ERRSV, &PL_sv_undef); /* and clear the error */ |
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454 | } |
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455 | |
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456 | out = g_strdup(SvPV(response, len)); |
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457 | FREETMPS; |
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458 | LEAVE; |
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459 | |
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460 | return(out); |
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461 | } |
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462 | |
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463 | void owl_perlconfig_getmsg(const owl_message *m, const char *subname) |
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464 | { |
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465 | char *ptr = NULL; |
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466 | if (owl_perlconfig_is_function("BarnOwl::Hooks::_receive_msg")) { |
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467 | ptr = owl_perlconfig_call_with_message(subname?subname |
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468 | :"BarnOwl::_receive_msg_legacy_wrap", m); |
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469 | } |
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470 | g_free(ptr); |
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471 | } |
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472 | |
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473 | /* Called on all new messages; receivemsg is only called on incoming ones */ |
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474 | void owl_perlconfig_newmsg(const owl_message *m, const char *subname) |
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475 | { |
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476 | char *ptr = NULL; |
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477 | if (owl_perlconfig_is_function("BarnOwl::Hooks::_new_msg")) { |
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478 | ptr = owl_perlconfig_call_with_message(subname?subname |
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479 | :"BarnOwl::Hooks::_new_msg", m); |
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480 | } |
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481 | g_free(ptr); |
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482 | } |
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483 | |
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484 | void owl_perlconfig_new_command(const char *name) |
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485 | { |
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486 | dSP; |
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487 | |
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488 | ENTER; |
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489 | SAVETMPS; |
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490 | |
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491 | PUSHMARK(SP); |
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492 | XPUSHs(sv_2mortal(owl_new_sv(name))); |
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493 | PUTBACK; |
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494 | |
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495 | call_pv("BarnOwl::Hooks::_new_command", G_VOID|G_EVAL); |
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496 | |
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497 | SPAGAIN; |
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498 | |
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499 | if(SvTRUE(ERRSV)) { |
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500 | owl_function_error("%s", SvPV_nolen(ERRSV)); |
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501 | } |
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502 | |
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503 | FREETMPS; |
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504 | LEAVE; |
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505 | } |
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506 | |
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507 | char *owl_perlconfig_perlcmd(const owl_cmd *cmd, int argc, const char *const *argv) |
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508 | { |
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509 | int i, count; |
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510 | char * ret = NULL; |
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511 | SV *rv; |
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512 | dSP; |
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513 | |
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514 | ENTER; |
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515 | SAVETMPS; |
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516 | |
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517 | PUSHMARK(SP); |
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518 | for(i=0;i<argc;i++) { |
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519 | XPUSHs(sv_2mortal(owl_new_sv(argv[i]))); |
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520 | } |
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521 | PUTBACK; |
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522 | |
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523 | count = call_sv(cmd->cmd_perl, G_SCALAR|G_EVAL); |
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524 | |
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525 | SPAGAIN; |
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526 | |
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527 | if(SvTRUE(ERRSV)) { |
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528 | owl_function_error("%s", SvPV_nolen(ERRSV)); |
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529 | (void)POPs; |
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530 | } else { |
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531 | if(count != 1) |
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532 | croak("Perl command %s returned more than one value!", cmd->name); |
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533 | rv = POPs; |
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534 | if(SvTRUE(rv)) { |
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535 | ret = g_strdup(SvPV_nolen(rv)); |
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536 | } |
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537 | } |
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538 | |
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539 | FREETMPS; |
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540 | LEAVE; |
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541 | |
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542 | return ret; |
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543 | } |
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544 | |
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545 | void owl_perlconfig_cmd_cleanup(owl_cmd *cmd) |
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546 | { |
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547 | SvREFCNT_dec(cmd->cmd_perl); |
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548 | } |
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549 | |
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550 | void owl_perlconfig_edit_callback(owl_editwin *e) |
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551 | { |
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552 | SV *cb = owl_editwin_get_cbdata(e); |
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553 | SV *text; |
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554 | dSP; |
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555 | |
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556 | if(cb == NULL) { |
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557 | owl_function_error("Perl callback is NULL!"); |
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558 | return; |
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559 | } |
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560 | text = owl_new_sv(owl_editwin_get_text(e)); |
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561 | |
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562 | ENTER; |
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563 | SAVETMPS; |
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564 | |
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565 | PUSHMARK(SP); |
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566 | XPUSHs(sv_2mortal(text)); |
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567 | PUTBACK; |
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568 | |
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569 | call_sv(cb, G_DISCARD|G_EVAL); |
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570 | |
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571 | if(SvTRUE(ERRSV)) { |
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572 | owl_function_error("%s", SvPV_nolen(ERRSV)); |
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573 | } |
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574 | |
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575 | FREETMPS; |
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576 | LEAVE; |
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577 | } |
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578 | |
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579 | void owl_perlconfig_dec_refcnt(void *data) |
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580 | { |
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581 | SV *v = data; |
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582 | SvREFCNT_dec(v); |
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583 | } |
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