loadPatterns loads the patterns into the pattern storage from the pattern file. On error -1 is returned and ebuf contains an error message. On success 0 is returned.
Definition at line 109 of file pattern.c.
References _pattern::logdef, _pattern::logrx, _pattern::match, _pattern::matchrx, patrx(), _pattern::pos, and trim().
Referenced by main().
00109 { 00110 char eb2[10240]; 00111 char buf[1024], name[1024], val[1024]; 00112 char *p, *ep, *p1; 00113 int ipp, i, line = 0; 00114 struct cfgitem *c; 00115 pat_t x; 00116 FILE *f; 00117 00118 if((f = fopen(file,"r")) == NULL) { 00119 snprintf(ebuf,ebsiz,"%s(%d) Cannot open config file \"%s\": %m",file,line); 00120 return -1; 00121 } 00122 while((p = fgets(buf,sizeof(buf)-1,f)) != NULL) { 00123 line ++; 00124 if(*p == '#') continue; 00125 if((p = strchr(buf,'#')) != NULL) 00126 *p = '\0'; 00127 p = trim(buf); 00128 if(*p == '\0' || strlen(p) == 0) 00129 continue; 00130 x.logdef = p; 00131 if((p = strchr(x.logdef,':')) == NULL) 00132 continue; 00133 *p++ = '\0'; 00134 x.match[0] = p; 00135 if((p = strchr(x.match[0],':')) == NULL) 00136 continue; 00137 *p++ = '\0'; 00138 x.match[1] = p; 00139 if((p = strchr(x.match[1],'@')) == NULL) 00140 continue; 00141 *p++ = '\0'; 00142 if((x.pos = atoi(p)) <= 0) { 00143 snprintf(ebuf,ebsiz,"%s:(%d) Invalid position specified in rule.",file,line); 00144 fclose(f); 00145 return -1; 00146 } 00147 if(strncmp(x.logdef,"//",2) == 0) { 00148 if((x.logrx = patrx(x.logdef,eb2,sizeof(eb2))) == NULL) 00149 snprintf(ebuf,ebsiz,"%s(%d): WARNING: pcre compile failed for logmatch: %s",file,line,eb2); 00150 } 00151 else 00152 x.logrx = NULL; 00153 for(i = 0; i < 2; i++) { 00154 x.matchrx[i] = NULL; 00155 if(x.match[i][0] == '/') { 00156 if((x.matchrx[i] = patrx(x.match[i],eb2,sizeof(eb2))) == NULL) 00157 snprintf(ebuf,ebsiz,"%s(%d): WARNING: pcre compile failed for match %d: %s",file,line,i+1,eb2); 00158 } 00159 } 00160 // 00161 // realloc and catenation of pattern to pats 00162 // 00163 ipp = _patcnt ++; 00164 if((_pats = realloc(_pats,(sizeof(pat_t *)*_patcnt))) == NULL){ 00165 snprintf(ebuf,ebsiz,"%s(%d): Could not allocate space for pat_t: %m",file,line); 00166 fclose(f); 00167 return -1; 00168 } 00169 if((_pats[ipp] = calloc(sizeof(pat_t),1)) == NULL) { 00170 snprintf(ebuf,ebsiz,"%s(%d): Could not allocate space for pat_t: %m",file,line); 00171 fclose(f); 00172 return -1; 00173 } 00174 x.logdef = strdup(x.logdef); 00175 for(i = 0; i < 2; i++) 00176 x.match[i] = strdup(x.match[i]); 00177 *_pats[ipp] = x; 00178 } 00179 fclose(f); 00180 return 0; 00181 }
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