int
execvp(const char *file, char *const *argv) {
sigset_t saved;
int rc = -1;
if (!pseudo_check_wrappers() || !real_execvp) {
/* rc was initialized to the "failure" value */
pseudo_enosys("execvp");
return rc;
}
pseudo_debug(4, "called: execvp\n");
pseudo_sigblock(&saved);
if (pseudo_getlock()) {
errno = EBUSY;
sigprocmask(SIG_SETMASK, &saved, NULL);
return -1;
}
int save_errno;
/* exec*() use this to restore the sig mask */
pseudo_saved_sigmask = saved;
rc = wrap_execvp(file, argv);
save_errno = errno;
pseudo_droplock();
sigprocmask(SIG_SETMASK, &saved, NULL);
pseudo_debug(4, "completed: execvp\n");
errno = save_errno;
return rc;
}
int
fork(void) {
sigset_t saved;
int rc = -1;
if (!pseudo_check_wrappers() || !real_fork) {
/* rc was initialized to the "failure" value */
pseudo_enosys("fork");
return rc;
}
pseudo_debug(4, "called: fork\n");
pseudo_sigblock(&saved);
if (pseudo_getlock()) {
errno = EBUSY;
sigprocmask(SIG_SETMASK, &saved, NULL);
return -1;
}
int save_errno;
rc = wrap_fork();
save_errno = errno;
pseudo_droplock();
sigprocmask(SIG_SETMASK, &saved, NULL);
pseudo_debug(4, "completed: fork\n");
errno = save_errno;
return rc;
}
int
clone(int (*fn)(void *), void *child_stack, int flags, void *arg, ...) {
sigset_t saved;
va_list ap;
pid_t *pid;
struct user_desc *tls;
pid_t *ctid;
int rc = -1;
if (!pseudo_check_wrappers() || !real_clone) {
/* rc was initialized to the "failure" value */
pseudo_enosys("clone");
return rc;
}
va_start(ap, arg);
pid = va_arg(ap, pid_t *);
tls = va_arg(ap, struct user_desc *);
ctid = va_arg(ap, pid_t *);
va_end(ap);
pseudo_debug(PDBGF_WRAPPER, "called: clone\n");
pseudo_sigblock(&saved);
if (pseudo_getlock()) {
errno = EBUSY;
sigprocmask(SIG_SETMASK, &saved, NULL);
return -1;
}
int save_errno;
int save_disabled = pseudo_disabled;
#include "guts/clone.c"
if (save_disabled != pseudo_disabled) {
if (pseudo_disabled) {
pseudo_disabled = 0;
pseudo_magic();
} else {
pseudo_disabled = 1;
pseudo_antimagic();
}
}
save_errno = errno;
pseudo_droplock();
sigprocmask(SIG_SETMASK, &saved, NULL);
pseudo_debug(PDBGF_WRAPPER, "completed: clone\n");
errno = save_errno;
return rc;
}
int
execle(const char *file, const char *arg, ...) {
sigset_t saved;
va_list ap;
char **argv;
char **envp;
int rc = -1;
if (!pseudo_check_wrappers()) {
/* rc was initialized to the "failure" value */
pseudo_enosys("execle");
return rc;
}
va_start(ap, arg);
argv = execl_to_v(ap, arg, (char *const **)&envp);
va_end(ap);
if (!argv) {
errno = ENOMEM;
return -1;
}
pseudo_debug(4, "called: execle\n");
pseudo_sigblock(&saved);
if (pseudo_getlock()) {
errno = EBUSY;
sigprocmask(SIG_SETMASK, &saved, NULL);
return -1;
}
int save_errno;
/* exec*() use this to restore the sig mask */
pseudo_saved_sigmask = saved;
rc = wrap_execve(file, argv, envp);
save_errno = errno;
pseudo_droplock();
sigprocmask(SIG_SETMASK, &saved, NULL);
pseudo_debug(4, "completed: execle\n");
errno = save_errno;
free(argv);
return rc;
}