ccan/oserver/tools/make-cdump_oserver_files.c

   1 #include <ccan/cdump/cdump_parse.h>
   2 #include <ccan/talloc/talloc.h>
   3 #include <ccan/grab_file/grab_file.h>
   4 #include <sys/types.h>
   5 #include <sys/stat.h>
   6 #include <fcntl.h>
   7 #include <unistd.h>
   8 #include <string.h>
   9 #include <err.h>
  10
  11 int main(int argc, char *argv[])
  12 {
  13         unsigned int i;
  14         int declfd, deffd;
  15         char *defs, *decls;
  16
  17         if (argc < 4)
  18                 errx(1, "Usage: %s <declfile> <defsfile> <sourcefiles>...",
  19                         argv[0]);
  20
  21         declfd = open(argv[1], O_WRONLY|O_CREAT|O_TRUNC, 0600);
  22         if (declfd < 0)
  23                 err(1, "Opening %s", argv[1]);
  24         deffd = open(argv[2], O_WRONLY|O_CREAT|O_TRUNC, 0600);
  25         if (deffd < 0)
  26                 err(1, "Opening %s", argv[2]);
  27
  28         decls = (char *)"#ifndef OSERVER_CDUMP_DECLS_H\n"
  29                 "#define OSERVER_CDUMP_DECLS_H\n"
  30                 "/* Autogenerated by dump_headers. */\n"
  31                 "#include <ccan/cdump/cdump_internal.h>\n";
  32         if (write(declfd, decls, strlen(decls)) != strlen(decls))
  33                 err(1, "Writing to %s", argv[1]);
  34
  35         defs = (char *)"/* Definitions: autogenerated by dump_headers */\n"
  36                 "#define CDUMP_FAKE 1\n"
  37                 "#include <ccan/oserver/oserver_types.h>\n"
  38                 "#include <ccan/oserver/oserver_cdump.h>\n"
  39                 "#include <stddef.h>\n";
  40         if (write(deffd, defs, strlen(defs)) != strlen(defs))
  41                 err(1, "Writing to %s", argv[2]);
  42
  43         for (i = 3; i < argc; i++) {
  44                 char *errmsg, *code;
  45
  46                 code = grab_file(NULL, argv[i], NULL);
  47                 if (!code)
  48                         err(1, "Reading %s", argv[i]);
  49                 errmsg = cdump_parse(code, code, &decls, &defs);
  50                 if (errmsg)
  51                         errx(1, "Parsing %s: %s", argv[1], errmsg);
  52                 if (write(declfd, decls, strlen(decls)) != strlen(decls))
  53                         err(1, "Writing to %s", argv[1]);
  54                 if (write(deffd, defs, strlen(defs)) != strlen(defs))
  55                         err(1, "Writing to %s", argv[2]);
  56                 talloc_free(code);
  57         }
  58
  59         decls = (char *)"#endif /* OSERVER_CDUMP_DECLS_H */\n";
  60         if (write(declfd, decls, strlen(decls)) != strlen(decls))
  61                 err(1, "Writing to %s", argv[1]);
  62         close(declfd);
  63         close(deffd);
  64         return 0;
  65 }