git.ozlabs.org Git - ccan/blob - tools/ccanlint/compulsory_tests/check_includes_build.c

   1 #include <tools/ccanlint/ccanlint.h>
   2 #include <tools/tools.h>
   3 #include <ccan/talloc/talloc.h>
   4 #include <ccan/grab_file/grab_file.h>
   5 #include <ccan/str/str.h>
   6 #include <sys/types.h>
   7 #include <sys/stat.h>
   8 #include <fcntl.h>
   9 #include <unistd.h>
  10 #include <limits.h>
  11 #include <errno.h>
  12 #include <stdlib.h>
  13 #include <stdio.h>
  14 #include <err.h>
  15 #include <string.h>
  16 #include <ctype.h>
  17
  18 static const char *can_build(struct manifest *m)
  19 {
  20         if (safe_mode)
  21                 return "Safe mode enabled";
  22         return NULL;
  23 }
  24
  25 static struct ccan_file *main_header(struct manifest *m)
  26 {
  27         struct ccan_file *f;
  28
  29         list_for_each(&m->h_files, f, list) {
  30                 if (strstarts(f->name, m->basename)
  31                     && strlen(f->name) == strlen(m->basename) + 2)
  32                         return f;
  33         }
  34         /* Should not happen: we depend on has_main_header */
  35         return NULL;
  36 }
  37
  38 static void *check_includes_build(struct manifest *m,
  39                                   bool keep,
  40                                   unsigned int *timeleft)
  41 {
  42         char *contents;
  43         char *tmpsrc, *tmpobj;
  44         int fd;
  45         struct ccan_file *mainh = main_header(m);
  46
  47         tmpsrc = maybe_temp_file(m, "-included.c", keep, mainh->fullname);
  48         tmpobj = maybe_temp_file(m, ".o", keep, tmpsrc);
  49
  50         fd = open(tmpsrc, O_WRONLY | O_CREAT | O_EXCL, 0600);
  51         if (fd < 0)
  52                 return talloc_asprintf(m, "Creating temporary file %s: %s",
  53                                        tmpsrc, strerror(errno));
  54
  55         contents = talloc_asprintf(tmpsrc, "#include <ccan/%s/%s.h>\n",
  56                                    m->basename, m->basename);
  57         if (write(fd, contents, strlen(contents)) != strlen(contents)) {
  58                 close(fd);
  59                 return "Failure writing to temporary file";
  60         }
  61         close(fd);
  62
  63         return compile_object(m, tmpsrc, ccan_dir, "", tmpobj);
  64 }
  65
  66 static const char *describe_includes_build(struct manifest *m,
  67                                            void *check_result)
  68 {
  69         return talloc_asprintf(check_result,
  70                                "#include of the main header file:\n"
  71                                "%s", (char *)check_result);
  72 }
  73
  74 struct ccanlint includes_build = {
  75         .key = "include-main",
  76         .name = "Modules main header compiles",
  77         .total_score = 1,
  78         .check = check_includes_build,
  79         .describe = describe_includes_build,
  80         .can_run = can_build,
  81 };
  82
  83 REGISTER_TEST(includes_build, &depends_exist, &has_main_header, NULL);