universe@10: /*
universe@20:  * scanner.c
universe@10:  *
universe@10:  *  Created on: 23.05.2011
universe@20:  *      Author: Mike
universe@10:  */
universe@1: 
universe@1: 
universe@10: #include "scanner.h"
universe@10: #include "suffix_fnc.h"
universe@21: #include "bfile_heuristics.h"
universe@23: #include <sys/stat.h>
universe@3: 
universe@23: int scanDirectory(scanner_t scanner, settings_t* settings) {
universe@23: 
universe@23:   DIR *dirf;
universe@3:   struct dirent *entry;
universe@18:   int lines, a;
universe@3:   int lineSum = 0;
universe@21:   bool bfile;
universe@23:   struct stat statbuf;
universe@3: 
universe@23:   if ((dirf = opendir(scanner.dir)) == NULL) {
universe@23:     printf(scanner.dir);
universe@23:     perror("  Directory access failed");
universe@23:     return 0;
universe@23:   }
universe@23: 
universe@23:   while ((entry = readdir(dirf)) != NULL) {
universe@3:     if (strcmp(entry->d_name, ".") != 0 && strcmp(entry->d_name, "..") != 0) {
universe@23:       /* Construct tree view and absolute pathname strings */
universe@23:       char entryname[strlen(entry->d_name)+scanner.spaces];
universe@23:       for (int t = 0 ; t < scanner.spaces ; t++) {
universe@3:         entryname[t]=' ';
universe@3:       }
universe@23:       entryname[scanner.spaces] = 0;
universe@3:       strcat(entryname, entry->d_name);
universe@3:   
universe@23:       char filename[(1+strlen(scanner.dir)+strlen(entry->d_name))];
universe@23:       strcpy(filename, scanner.dir);
universe@14:       strncat(filename, &settings->fileSeparator, 1);
universe@14:       strcat(filename, entry->d_name);
universe@14: 
universe@22:       /* Check for subdirectory */
universe@23:       if (stat(filename, &statbuf) == 0) {
universe@23:         if (!(statbuf.st_mode & S_IFREG)) {
universe@23:           printf("%-60s\n", entryname);
universe@23:           if (settings->recursive && (statbuf.st_mode & S_IFDIR)) {
universe@23:             lineSum += scanDirectory(
universe@23:                 (scanner_t) {filename, scanner.spaces+1}, settings);
universe@23:           }
universe@23:           continue;
universe@3:         }
universe@23:       } else {
universe@23:         perror("  Error in stat call");
universe@3:         continue;
universe@3:       }
universe@3: 
universe@3:       if (testSuffix(filename, settings)) {
universe@25:         /* Count lines */
universe@25:         lines = 0;
universe@25:         bfile = false;
universe@25:         bfile_reset(settings->bfileHeuristics);
universe@25:         char line_buffer[2048];
universe@25:         int line_buffer_offset = 0;
universe@25: 
universe@3:         FILE *file = fopen(filename, "r");
universe@3:         if (file == NULL) {
universe@23:           printf(entryname);
universe@3:           perror("  File acces failed");
universe@3:           continue;
universe@3:         }
universe@3: 
universe@3:         do {
universe@3:           a = fgetc(file);
universe@3: 
universe@21:           bfile = bfile_check(settings->bfileHeuristics, a);
universe@21: 
universe@3:           if (a == 10) {
universe@25:             line_buffer[line_buffer_offset] = 0;
universe@25:             /* TODO: do regex parsing */
universe@25: 
universe@25:             line_buffer_offset = 0;
universe@3:             lines++;
universe@25:           } else {
universe@25:             if (line_buffer_offset < 2048) {
universe@25:               line_buffer[line_buffer_offset] = a;
universe@25:               line_buffer_offset++;
universe@25:             } else {
universe@25:               line_buffer[line_buffer_offset-1] = 0;
universe@25:               settings->confusing_lnlen = true;
universe@25:             }
universe@3:           }
universe@21:         } while (!bfile && a != EOF);
universe@3:         fclose(file);
universe@3: 
universe@22:         /* Print and sum line count */
universe@21:         if (bfile) {
universe@22:           if (!settings->matchesOnly) {
universe@22:             printf("%-60s%19s\n", entryname, "binary");
universe@22:           }
universe@21:         } else {
universe@22:           lineSum += lines;
universe@3:           printf("%-60s%13d lines\n", entryname, lines);
universe@21:         }
universe@16:       } else {
universe@3:         if (!settings->matchesOnly) {
universe@22:           /* Print hint */
universe@21:           printf("%-60s%19s\n", entryname, "no match");
universe@3:         }
universe@3:       }
universe@3:     }
universe@3:   }
universe@23: 
universe@23:   closedir(dirf);
universe@23: 
universe@3:   return lineSum;
universe@3: }