trunk/multiarch-wrapper/multiarch-wrapper.c

#define _GNU_SOURCE

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>

#ifndef DEF_SUFFIX
#  define DEF_SUFFIX "m64"
#endif

int main(int argc, char **argv)
{
  char *filename;
  char *suffix;

  if(!(suffix = getenv("ABI")))
    suffix = DEF_SUFFIX;

  if (asprintf(&filename, "%s-%s", argv[0], suffix) < 0) {
    perror(argv[0]);
    return -1;
  }

  int status = EXIT_FAILURE;
  pid_t pid = fork();

  if (pid == 0) {
    execvp(filename, argv);
    perror(filename);
    goto end;
  } else if (pid < 0) {
    goto end_error;
  } else {
    if (waitpid(pid, &status, 0) != pid) {
      status = EXIT_FAILURE;
      goto end_error;
    }
    status = WEXITSTATUS(status);
  }
  goto end;

end_error:
  perror(argv[0]);
end:
  free(filename);

  return status;
}


1	#define _GNU_SOURCE
2
3	#include <errno.h>
4	#include <stdio.h>
5	#include <stdlib.h>
6	#include <sys/types.h>
7	#include <sys/wait.h>
8	#include <unistd.h>
9
10	#ifndef DEF_SUFFIX
11	# define DEF_SUFFIX "m64"
12	#endif
13
14	int main(int argc, char **argv)
15	{
16	char *filename;
17	char *suffix;
18
19	if(!(suffix = getenv("ABI")))
20	suffix = DEF_SUFFIX;
21
22	if (asprintf(&filename, "%s-%s", argv[0], suffix) < 0) {
23	perror(argv[0]);
24	return -1;
25	}
26
27	int status = EXIT_FAILURE;
28	pid_t pid = fork();
29
30	if (pid == 0) {
31	execvp(filename, argv);
32	perror(filename);
33	goto end;
34	} else if (pid < 0) {
35	goto end_error;
36	} else {
37	if (waitpid(pid, &status, 0) != pid) {
38	status = EXIT_FAILURE;
39	goto end_error;
40	}
41	status = WEXITSTATUS(status);
42	}
43	goto end;
44
45	end_error:
46	perror(argv[0]);
47	end:
48	free(filename);
49
50	return status;
51	}
52
53