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annotate ffstools/tiffs-mkfs/input.c @ 820:03457a66d860

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buzplayer: add basic support for PWT
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 30 May 2021 03:39:58 +0000
parents 12ae93940467
children
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705
12ae93940467 tiffs-mkfs program written, compiles
Mychaela Falconia <falcon@freecalypso.org>
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1 #include <sys/types.h>
12ae93940467 tiffs-mkfs program written, compiles
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2 #include <sys/param.h>
12ae93940467 tiffs-mkfs program written, compiles
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3 #include <sys/stat.h>
12ae93940467 tiffs-mkfs program written, compiles
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4 #include <dirent.h>
12ae93940467 tiffs-mkfs program written, compiles
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5 #include <stdio.h>
12ae93940467 tiffs-mkfs program written, compiles
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6 #include <stdint.h>
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7 #include <stdlib.h>
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8 #include <string.h>
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9 #include <strings.h>
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10 #include <unistd.h>
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11 #include "struct.h"
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12 #include "globals.h"
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13
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14 void
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15 read_dir_level(dto, srcpath, depth)
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16 struct tree_object *dto;
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17 char *srcpath;
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18 {
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19 DIR *rdd;
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20 struct dirent *dirent;
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21 char hostpath_child[MAXPATHLEN];
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22 struct stat hst;
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23 struct tree_object *cto;
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24 unsigned nchildren;
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25
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26 dto->is_dir = 1;
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27 rdd = opendir(srcpath);
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28 if (!rdd) {
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29 perror(srcpath);
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30 exit(1);
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31 }
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32 nchildren = 0;
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33 while (dirent = readdir(rdd)) {
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34 if (dirent->d_name[0] == '.')
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35 continue;
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36 if (strlen(dirent->d_name) > MAX_FN_COMPONENT) {
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37 fprintf(stderr,
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38 "error: \"%s\" in %s exceeds the FFS component name limit\n",
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39 dirent->d_name, srcpath);
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40 exit(1);
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41 }
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42 if (nchildren >= MAX_DIR_ENTRIES) {
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43 fprintf(stderr, "error: %s has too many children\n",
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44 srcpath);
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45 exit(1);
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46 }
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47 cto = malloc(sizeof(struct tree_object));
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48 if (!cto) {
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49 perror("malloc of struct tree_object");
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50 exit(1);
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51 }
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52 strcpy(cto->name, dirent->d_name);
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53 dto->u.d.children[nchildren++] = cto;
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54 if (strlen(srcpath) + strlen(dirent->d_name) + 2 >
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55 sizeof hostpath_child) {
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56 fprintf(stderr,
12ae93940467 tiffs-mkfs program written, compiles
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57 "error: host side pathname buffer overflow\n");
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58 exit(1);
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59 }
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60 sprintf(hostpath_child, "%s/%s", srcpath, dirent->d_name);
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61 if (lstat(hostpath_child, &hst) < 0) {
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62 perror(hostpath_child);
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63 exit(1);
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64 }
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65 switch (hst.st_mode & S_IFMT) {
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66 case S_IFREG:
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67 cto->is_dir = 0;
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68 strcpy(cto->u.f.host_pathname, hostpath_child);
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69 break;
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70 case S_IFDIR:
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71 if (depth >= MAX_DIR_NEST-1) {
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72 fprintf(stderr,
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73 "error: directory nesting too deep at %s\n",
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74 hostpath_child);
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75 exit(1);
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76 }
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77 read_dir_level(cto, hostpath_child, depth + 1);
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78 break;
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79 default:
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80 fprintf(stderr,
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81 "error: %s is neither a regular file nor a directory\n",
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82 hostpath_child);
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83 exit(1);
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84 }
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85 }
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86 closedir(rdd);
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87 dto->u.d.nchildren = nchildren;
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88 }
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89
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90 static int
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91 compare_func(p1, p2)
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92 struct tree_object **p1, **p2;
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93 {
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94 return strcmp((*p1)->name, (*p2)->name);
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95 }
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96
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97 void
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98 sort_dir_level(dto)
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99 struct tree_object *dto;
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100 {
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101 unsigned n;
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102 struct tree_object *cto;
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103
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104 if (dto->u.d.nchildren > 1)
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105 qsort(dto->u.d.children, dto->u.d.nchildren,
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106 sizeof(struct tree_object *), compare_func);
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107 for (n = 0; n < dto->u.d.nchildren; n++) {
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108 cto = dto->u.d.children[n];
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109 if (cto->is_dir)
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110 sort_dir_level(cto);
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111 }
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112 }