c433f4617f
cygerrno.h. * include/cygwin/config.h (__DYNAMIC_REENT__): Define. * include/cygwin/version.h: Bump API minor version. * cygwin.din: Export __getreent * cygerrno.h: Include errno.h. Fix places where _impure_ptr is used directly to store the errno value. * debug.cc (__set_errno): Ditto. * errno.cc: Remove _RRENT_ONLY define to get errno.cc compiled. * signal.cc: Rename _reent_clib to _REENT throughout. * thread.h (reent_clib): Remove prototype. * thread.cc (reent_clib): Rename reent_clib to __getreent. Return _impure_ptr until MTinterface is initialized. (reent_winsup): Fix a possible SEGV when _r == NULL. Return NULL instead. * MTinterface::fixup_after_fork: Switch reent back to _impure_ptr to keep signal handling running when fork is called from a thread other than the mainthread.
103 lines
2.1 KiB
C++
103 lines
2.1 KiB
C++
/* exec.cc: exec system call support.
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Copyright 1996, 1997, 1998, 2000, 2001, 2002 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#define _execve __FOO_execve_
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#include "winsup.h"
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#include <unistd.h>
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#include <stdlib.h>
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#include <process.h>
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#include "perprocess.h"
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#include "security.h"
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#include "fhandler.h"
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#include "path.h"
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#include "pinfo.h"
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#include "environ.h"
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#include "cygerrno.h"
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#undef _execve
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/* This is called _execve and not execve because the real execve is defined
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in libc/posix/execve.c. It calls us. */
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extern "C" int
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execve (const char *path, char *const argv[], char *const envp[])
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{
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static char *const empty_env[] = { 0 };
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MALLOC_CHECK;
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if (!envp)
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envp = empty_env;
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return spawnve (_P_OVERLAY, path, argv, envp);
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}
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extern "C" int _execve (const char *, char *const [], char *const [])
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__attribute__ ((alias ("execve")));
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extern "C" int
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execl (const char *path, const char *arg0, ...)
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{
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int i;
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va_list args;
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const char *argv[1024];
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va_start (args, arg0);
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argv[0] = arg0;
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i = 1;
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do
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argv[i] = va_arg (args, const char *);
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while (argv[i++] != NULL);
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va_end (args);
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MALLOC_CHECK;
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return execve (path, (char * const *) argv, cur_environ ());
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}
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extern "C" int
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execv (const char *path, char * const *argv)
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{
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MALLOC_CHECK;
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return execve (path, (char * const *) argv, cur_environ ());
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}
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extern "C" pid_t
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sexecve_is_bad ()
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{
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set_errno (ENOSYS);
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return 0;
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}
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/*
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* Copy string, until c or <nul> is encountered.
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* NUL-terminate the destination string (s1).
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* Return pointer to terminating byte in dst string.
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*/
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char * __stdcall
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strccpy (char *s1, const char **s2, char c)
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{
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while (**s2 && **s2 != c)
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*s1++ = *((*s2)++);
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*s1 = 0;
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MALLOC_CHECK;
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return s1;
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}
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extern "C" int
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execvp (const char *path, char * const *argv)
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{
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path_conv buf;
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return execv (find_exec (path, buf), argv);
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}
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extern "C" int
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execvpe (const char *path, char * const *argv, char *const *envp)
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{
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path_conv buf;
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return execve (find_exec (path, buf), argv, envp);
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}
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