Lady’s Gitweb - CGirls/blob - cgirls-test-pathinfo.c

   1 // SPDX-FileCopyrightText: 2025 Lady <https://www.ladys.computer/about/#lady>
   2 // SPDX-License-Identifier: GPL-2.0-only
   3
   4 #include "aa.h"
   5 #include "request.h"
   6
   7 // Read in lines from standard input, parse them as path info, and then
   8 // reserialize them to standard output.
   9 int cmd_main(int argc, [[maybe_unused]] const char* argv[argc+1]) {
  10         char* lineptr[1] = { nullptr };
  11         size_t linelen[1] = { 0 };
  12         while (true) {
  13                 ssize_t readlen = getline(lineptr, linelen, stdin);
  14                 if (!feof(stdin) && readlen > 0) {
  15                         char* line = nullptr;
  16                         char* reline = nullptr;
  17                         bool empty = false;
  18                         if (readlen == 1) {
  19                                 line = "";
  20                                 empty = true;
  21                         } else {
  22                                 line = strndup(lineptr[0], readlen - 1);
  23                                 if (!line) {
  24                                         free(lineptr[0]);
  25                                         fprintf(stderr, "Error: Failed to allocate string for line.\n");
  26                                         return EXIT_FAILURE;
  27                                 }
  28                         }
  29                         cgirls_req req = cgirls_path·to·req(line);
  30                         if (!empty) {
  31                                 free(line);
  32                         }
  33                         line = cgirls_req·to·path(req);
  34                         cgirls_req·free(req);
  35                         if (!line) {
  36                                 free(lineptr[0]);
  37                                 fprintf(stderr, "Error: Failed to allocate string for path.\n");
  38                                 return EXIT_FAILURE;
  39                         }
  40                         req = cgirls_path·to·req(line);
  41                         reline = cgirls_req·to·path(req);
  42                         cgirls_req·free(req);
  43                         if (!reline) {
  44                                 free(lineptr[0]);
  45                                 free(line);
  46                                 fprintf(stderr, "Error: Failed to allocate another string for path.\n");
  47                                 return EXIT_FAILURE;
  48                         }
  49                         if (strcmp(line, reline) != 0) {
  50                                 free(lineptr[0]);
  51                                 fprintf(stderr, "Error: Path normalization was not idempotent for path <%s> (got <%s>).\n", line, reline);
  52                                 free(line);
  53                                 free(reline);
  54                                 return EXIT_FAILURE;
  55                         }
  56                         free(reline);
  57                         fprintf(stdout, "%s\n", line);
  58                         free(line);
  59                 } else if (!feof(stdin)) {
  60                         free(lineptr[0]);
  61                         fprintf(stderr, "Error: Got an error from trying to read from file.\n");
  62                         return EXIT_FAILURE;
  63                 } else if (readlen > 0) {
  64                         free(lineptr[0]);
  65                         fprintf(stderr, "Error: Final line in file was not blank.\n");
  66                         return EXIT_FAILURE;
  67                 } else {
  68                         free(lineptr[0]);
  69                         return EXIT_SUCCESS;
  70                 }
  71         }
  72 }