mailing list of musl libc

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
 #define _GNU_SOURCE
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include "syscall.h"

void __procfdname(char *, unsigned);

int fexecve(int fd, char *const argv[], char *const envp[])
{
#ifdef SYS_execveat
       return syscall(SYS_execveat, fd, "", argv, envp, AT_EMPTY_PATH);
#else
	char buf[15 + 3*sizeof(int)];
	__procfdname(buf, fd);
	execve(buf, argv, envp);
	if (errno == ENOENT) errno = EBADF;
	return -1;
#endif
}