memcheck/tests/solaris/execx.c

   1 /* Tests variant of SYS_execve where the first argument is a file descriptor. */
   2
   3 #include <errno.h>
   4 #include <fcntl.h>
   5 #include <stdio.h>
   6 #include <unistd.h>
   7 #include <sys/execx.h>
   8 #include <sys/syscall.h>
   9 #include <sys/wait.h>
  10
  11 static void test_EFAULT(void) {
  12    int ret = syscall(SYS_execve, -1, 0, 0, 0);
  13    int error = errno;
  14    if ((ret != -1) || (error != EFAULT))
  15       fprintf(stderr, "Expecting EFAULT\n");
  16 }
  17
  18 static void test_EBADF(void) {
  19    int ret = syscall(SYS_execve, -1, 0, 0, EXEC_DESCRIPTOR);
  20    int error = errno;
  21    if ((ret != -1) || (error != EBADF))
  22       fprintf(stderr, "Expecting EBADF\n");
  23 }
  24
  25 static int test_fexecve(char * const *envp) {
  26    int fd = open("/usr/bin/printf", O_EXEC);
  27    if (fd < 0) {
  28       perror("open");
  29       return 1;
  30    }
  31
  32    pid_t pid = fork();
  33    if (pid == -1) {
  34       perror("fork");
  35       return 1;
  36    } else if (pid > 0) {
  37       /* parent */
  38    } else {
  39       char *argv[] = {"printf", "PASSED\n", NULL};
  40
  41       if (fexecve(fd, argv, envp) < 0) {
  42          perror("fexecve");
  43          _exit(1);
  44       }
  45
  46    }
  47
  48    wait(NULL);
  49    return 0;
  50 }
  51
  52 int main(int argc, const char *argv[], char * const *envp) {
  53    /* First exercise the syscall with some invalid input. */
  54    test_EFAULT();
  55    test_EBADF();
  56
  57    return test_fexecve(envp);
  58 }