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

   1 #include <tools/ccanlint/ccanlint.h>
   2 #include <tools/tools.h>
   3 #include <ccan/talloc/talloc.h>
   4 #include <ccan/str/str.h>
   5 #include <sys/types.h>
   6 #include <sys/stat.h>
   7 #include <fcntl.h>
   8 #include <unistd.h>
   9 #include <limits.h>
  10 #include <errno.h>
  11 #include <stdlib.h>
  12 #include <stdio.h>
  13 #include <err.h>
  14 #include <string.h>
  15 #include <ctype.h>
  16
  17 static const char *can_build(struct manifest *m)
  18 {
  19         if (safe_mode)
  20                 return "Safe mode enabled";
  21         return NULL;
  22 }
  23
  24 static char *obj_list(const struct manifest *m)
  25 {
  26         char *list = talloc_strdup(m, "");
  27         struct ccan_file *i;
  28
  29         /* Other CCAN deps. */
  30         list_for_each(&m->dep_dirs, i, list) {
  31                 if (i->compiled)
  32                         list = talloc_asprintf_append(list, "%s ", i->compiled);
  33         }
  34         return list;
  35 }
  36
  37 static char *lib_list(const struct manifest *m)
  38 {
  39         unsigned int i, num;
  40         char **libs = get_libs(m, ".", &num, &m->info_file->compiled);
  41         char *ret = talloc_strdup(m, "");
  42
  43         for (i = 0; i < num; i++)
  44                 ret = talloc_asprintf_append(ret, "-l%s ", libs[i]);
  45         return ret;
  46 }
  47
  48 static void *check_use_build(struct manifest *m,
  49                              bool keep,
  50                              unsigned int *timeleft)
  51 {
  52         char *contents;
  53         char *tmpfile;
  54         char *basename = talloc_asprintf(m, "%s/example.c", m->dir);
  55         int fd;
  56
  57         tmpfile = maybe_temp_file(m, ".c", keep, basename);
  58
  59         fd = open(tmpfile, O_WRONLY | O_CREAT | O_EXCL, 0600);
  60         if (fd < 0)
  61                 return talloc_asprintf(m, "Creating temporary file: %s",
  62                                        strerror(errno));
  63
  64         contents = talloc_asprintf(tmpfile,
  65                                    "#include <ccan/%s/%s.h>\n"
  66                                    "int main(void)\n"
  67                                    "{\n"
  68                                    "    return 0;\n"
  69                                    "}\n",
  70                                    m->basename, m->basename);
  71         if (write(fd, contents, strlen(contents)) != strlen(contents)) {
  72                 close(fd);
  73                 return "Failure writing to temporary file";
  74         }
  75         close(fd);
  76
  77         return compile_and_link(m, tmpfile, ccan_dir, obj_list(m), "",
  78                                 lib_list(m),
  79                                 maybe_temp_file(m, "", keep, tmpfile));
  80 }
  81
  82 static const char *describe_use_build(struct manifest *m, void *check_result)
  83 {
  84         return talloc_asprintf(check_result,
  85                                "Linking against module:\n"
  86                                "%s", (char *)check_result);
  87 }
  88
  89 struct ccanlint check_build = {
  90         .key = "check-link",
  91         .name = "Module can be linked against trivial program",
  92         .total_score = 1,
  93         .check = check_use_build,
  94         .describe = describe_use_build,
  95         .can_run = can_build,
  96 };
  97
  98 REGISTER_TEST(check_build, &build, NULL);