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annotate ffstools/tiffs-mkfs/input.c @ 926:6a0aa8d36d06

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rvinterf backslash escape: introduce libprint The new helper function library named libprint is meant to replace the badly misnamed libg23, and will soon contain functions for printing all of the same kinds of GPF TST packets that are now handled in libg23. However, we are also moving safe_print_trace() from libasync to this new library, and changing it to emit our new backslash escape format.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 23 May 2023 03:47:46 +0000
parents 12ae93940467
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
705
12ae93940467 tiffs-mkfs program written, compiles
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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>
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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,
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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 }