-/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <errno.h>
#include "libguile/_scm.h"
+#include "libguile/dynwind.h"
#include "libguile/fports.h"
#include "libguile/scmsigs.h"
#include "libguile/feature.h"
#include "libguile/strings.h"
+#include "libguile/srfi-13.h"
+#include "libguile/srfi-14.h"
#include "libguile/vectors.h"
#include "libguile/lang.h"
#include "libguile/validate.h"
#include "libguile/posix.h"
+#include "libguile/i18n.h"
+#include "libguile/threads.h"
\f
#ifdef HAVE_STRING_H
# include <crypt.h>
#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h> /* for MAXHOSTNAMELEN on Solaris */
+#endif
+
+#ifdef HAVE_SYS_PARAM_H
+#include <sys/param.h> /* for MAXHOSTNAMELEN */
+#endif
+
#if HAVE_SYS_RESOURCE_H
# include <sys/resource.h>
#endif
#define F_OK 0
#endif
+/* No prototype for this on Solaris 10. The man page says it's in
+ <unistd.h> ... but it lies. */
+#if ! HAVE_DECL_SETHOSTNAME
+int sethostname (char *name, size_t namelen);
+#endif
+
/* On NextStep, <utime.h> doesn't define struct utime, unless we
#define _POSIX_SOURCE before #including it. I think this is less
of a kludge than defining struct utimbuf ourselves. */
#endif
\f
+
+/* Two often used patterns
+ */
+
+#define WITH_STRING(str,cstr,code) \
+ do { \
+ char *cstr = scm_to_locale_string (str); \
+ code; \
+ free (cstr); \
+ } while (0)
+
+#define STRING_SYSCALL(str,cstr,code) \
+ do { \
+ int eno; \
+ char *cstr = scm_to_locale_string (str); \
+ SCM_SYSCALL (code); \
+ eno = errno; free (cstr); errno = eno; \
+ } while (0)
+
+
+\f
SCM_SYMBOL (sym_read_pipe, "read pipe");
SCM_SYMBOL (sym_write_pipe, "write pipe");
result = scm_c_make_vector (ngroups, SCM_BOOL_F);
while (--ngroups >= 0)
- SCM_VECTOR_SET (result, ngroups, scm_ulong2num (groups[ngroups]));
+ SCM_SIMPLE_VECTOR_SET (result, ngroups, scm_from_ulong (groups[ngroups]));
free (groups);
return result;
#ifdef HAVE_SETGROUPS
SCM_DEFINE (scm_setgroups, "setgroups", 1, 0, 0,
(SCM group_vec),
- "Set the supplementary group IDs to those found in the vector argument.")
+ "Set the current set of supplementary group IDs to the integers\n"
+ "in the given vector @var{vec}. The return value is\n"
+ "unspecified.\n"
+ "\n"
+ "Generally only the superuser can set the process group IDs.")
#define FUNC_NAME s_scm_setgroups
{
size_t ngroups;
SCM_VALIDATE_VECTOR (SCM_ARG1, group_vec);
- ngroups = SCM_VECTOR_LENGTH (group_vec);
+ ngroups = SCM_SIMPLE_VECTOR_LENGTH (group_vec);
/* validate before allocating, so we don't have to worry about leaks */
for (i = 0; i < ngroups; i++)
{
unsigned long ulong_gid;
GETGROUPS_T gid;
- SCM_VALIDATE_ULONG_COPY (1, SCM_VECTOR_REF (group_vec, i), ulong_gid);
+ SCM_VALIDATE_ULONG_COPY (1, SCM_SIMPLE_VECTOR_REF (group_vec, i),
+ ulong_gid);
gid = ulong_gid;
if (gid != ulong_gid)
- SCM_OUT_OF_RANGE (1, SCM_VECTOR_REF (group_vec, i));
+ SCM_OUT_OF_RANGE (1, SCM_SIMPLE_VECTOR_REF (group_vec, i));
}
size = ngroups * sizeof (GETGROUPS_T);
if (size / sizeof (GETGROUPS_T) != ngroups)
- SCM_OUT_OF_RANGE (SCM_ARG1, SCM_MAKINUM (ngroups));
+ SCM_OUT_OF_RANGE (SCM_ARG1, scm_from_int (ngroups));
groups = scm_malloc (size);
for(i = 0; i < ngroups; i++)
- groups [i] = SCM_NUM2ULONG (1, SCM_VECTOR_REF (group_vec, i));
+ groups [i] = SCM_NUM2ULONG (1, SCM_SIMPLE_VECTOR_REF (group_vec, i));
result = setgroups (ngroups, groups);
save_errno = errno; /* don't let free() touch errno */
struct passwd *entry;
SCM result = scm_c_make_vector (7, SCM_UNSPECIFIED);
- if (SCM_UNBNDP (user) || SCM_FALSEP (user))
+ if (SCM_UNBNDP (user) || scm_is_false (user))
{
SCM_SYSCALL (entry = getpwent ());
if (! entry)
return SCM_BOOL_F;
}
}
- else if (SCM_INUMP (user))
+ else if (scm_is_integer (user))
{
- entry = getpwuid (SCM_INUM (user));
+ entry = getpwuid (scm_to_int (user));
}
else
{
- SCM_VALIDATE_STRING (1, user);
- entry = getpwnam (SCM_STRING_CHARS (user));
+ WITH_STRING (user, c_user,
+ entry = getpwnam (c_user));
}
if (!entry)
SCM_MISC_ERROR ("entry not found", SCM_EOL);
- SCM_VECTOR_SET(result, 0, scm_makfrom0str (entry->pw_name));
- SCM_VECTOR_SET(result, 1, scm_makfrom0str (entry->pw_passwd));
- SCM_VECTOR_SET(result, 2, scm_ulong2num ((unsigned long) entry->pw_uid));
- SCM_VECTOR_SET(result, 3, scm_ulong2num ((unsigned long) entry->pw_gid));
- SCM_VECTOR_SET(result, 4, scm_makfrom0str (entry->pw_gecos));
+ SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_locale_string (entry->pw_name));
+ SCM_SIMPLE_VECTOR_SET(result, 1, scm_from_locale_string (entry->pw_passwd));
+ SCM_SIMPLE_VECTOR_SET(result, 2, scm_from_ulong (entry->pw_uid));
+ SCM_SIMPLE_VECTOR_SET(result, 3, scm_from_ulong (entry->pw_gid));
+ SCM_SIMPLE_VECTOR_SET(result, 4, scm_from_locale_string (entry->pw_gecos));
if (!entry->pw_dir)
- SCM_VECTOR_SET(result, 5, scm_makfrom0str (""));
+ SCM_SIMPLE_VECTOR_SET(result, 5, scm_from_locale_string (""));
else
- SCM_VECTOR_SET(result, 5, scm_makfrom0str (entry->pw_dir));
+ SCM_SIMPLE_VECTOR_SET(result, 5, scm_from_locale_string (entry->pw_dir));
if (!entry->pw_shell)
- SCM_VECTOR_SET(result, 6, scm_makfrom0str (""));
+ SCM_SIMPLE_VECTOR_SET(result, 6, scm_from_locale_string (""));
else
- SCM_VECTOR_SET(result, 6, scm_makfrom0str (entry->pw_shell));
+ SCM_SIMPLE_VECTOR_SET(result, 6, scm_from_locale_string (entry->pw_shell));
return result;
}
#undef FUNC_NAME
"@code{endpwent} procedures are implemented on top of this.")
#define FUNC_NAME s_scm_setpwent
{
- if (SCM_UNBNDP (arg) || SCM_FALSEP (arg))
+ if (SCM_UNBNDP (arg) || scm_is_false (arg))
endpwent ();
else
setpwent ();
struct group *entry;
SCM result = scm_c_make_vector (4, SCM_UNSPECIFIED);
- if (SCM_UNBNDP (name) || SCM_FALSEP (name))
+ if (SCM_UNBNDP (name) || scm_is_false (name))
{
SCM_SYSCALL (entry = getgrent ());
if (! entry)
return SCM_BOOL_F;
}
}
- else if (SCM_INUMP (name))
- SCM_SYSCALL (entry = getgrgid (SCM_INUM (name)));
+ else if (scm_is_integer (name))
+ SCM_SYSCALL (entry = getgrgid (scm_to_int (name)));
else
- {
- SCM_VALIDATE_STRING (1, name);
- SCM_SYSCALL (entry = getgrnam (SCM_STRING_CHARS (name)));
- }
+ STRING_SYSCALL (name, c_name,
+ entry = getgrnam (c_name));
if (!entry)
SCM_SYSERROR;
- SCM_VECTOR_SET(result, 0, scm_makfrom0str (entry->gr_name));
- SCM_VECTOR_SET(result, 1, scm_makfrom0str (entry->gr_passwd));
- SCM_VECTOR_SET(result, 2, scm_ulong2num ((unsigned long) entry->gr_gid));
- SCM_VECTOR_SET(result, 3, scm_makfromstrs (-1, entry->gr_mem));
+ SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_locale_string (entry->gr_name));
+ SCM_SIMPLE_VECTOR_SET(result, 1, scm_from_locale_string (entry->gr_passwd));
+ SCM_SIMPLE_VECTOR_SET(result, 2, scm_from_ulong (entry->gr_gid));
+ SCM_SIMPLE_VECTOR_SET(result, 3, scm_makfromstrs (-1, entry->gr_mem));
return result;
}
#undef FUNC_NAME
"@code{endgrent} procedures are implemented on top of this.")
#define FUNC_NAME s_scm_setgrent
{
- if (SCM_UNBNDP (arg) || SCM_FALSEP (arg))
+ if (SCM_UNBNDP (arg) || scm_is_false (arg))
endgrent ();
else
setgrent ();
"@end defvar")
#define FUNC_NAME s_scm_kill
{
- SCM_VALIDATE_INUM (1, pid);
- SCM_VALIDATE_INUM (2, sig);
/* Signal values are interned in scm_init_posix(). */
#ifdef HAVE_KILL
- if (kill ((int) SCM_INUM (pid), (int) SCM_INUM (sig)) != 0)
+ if (kill (scm_to_int (pid), scm_to_int (sig)) != 0)
#else
- if ((int) SCM_INUM (pid) == getpid ())
- if (raise ((int) SCM_INUM (sig)) != 0)
+ if (scm_to_int (pid) == getpid ())
+ if (raise (scm_to_int (sig)) != 0)
#endif
SCM_SYSERROR;
return SCM_UNSPECIFIED;
int i;
int status;
int ioptions;
- SCM_VALIDATE_INUM (1, pid);
if (SCM_UNBNDP (options))
ioptions = 0;
else
{
- SCM_VALIDATE_INUM (2, options);
/* Flags are interned in scm_init_posix. */
- ioptions = SCM_INUM (options);
+ ioptions = scm_to_int (options);
}
- SCM_SYSCALL (i = waitpid (SCM_INUM (pid), &status, ioptions));
+ SCM_SYSCALL (i = waitpid (scm_to_int (pid), &status, ioptions));
if (i == -1)
SCM_SYSERROR;
- return scm_cons (SCM_MAKINUM (0L + i), SCM_MAKINUM (0L + status));
+ return scm_cons (scm_from_int (i), scm_from_int (status));
}
#undef FUNC_NAME
#endif /* HAVE_WAITPID */
{
int lstatus;
- SCM_VALIDATE_INUM (1, status);
-
/* On Ultrix, the WIF... macros assume their argument is an lvalue;
- go figure. SCM_INUM does not yield an lvalue. */
- lstatus = SCM_INUM (status);
+ go figure. */
+ lstatus = scm_to_int (status);
if (WIFEXITED (lstatus))
- return (SCM_MAKINUM (WEXITSTATUS (lstatus)));
+ return (scm_from_int (WEXITSTATUS (lstatus)));
else
return SCM_BOOL_F;
}
{
int lstatus;
- SCM_VALIDATE_INUM (1, status);
-
- lstatus = SCM_INUM (status);
+ lstatus = scm_to_int (status);
if (WIFSIGNALED (lstatus))
- return SCM_MAKINUM (WTERMSIG (lstatus));
+ return scm_from_int (WTERMSIG (lstatus));
else
return SCM_BOOL_F;
}
{
int lstatus;
- SCM_VALIDATE_INUM (1, status);
-
- lstatus = SCM_INUM (status);
+ lstatus = scm_to_int (status);
if (WIFSTOPPED (lstatus))
- return SCM_MAKINUM (WSTOPSIG (lstatus));
+ return scm_from_int (WSTOPSIG (lstatus));
else
return SCM_BOOL_F;
}
"process.")
#define FUNC_NAME s_scm_getppid
{
- return SCM_MAKINUM (0L + getppid ());
+ return scm_from_int (getppid ());
}
#undef FUNC_NAME
#endif /* HAVE_GETPPID */
"Return an integer representing the current real user ID.")
#define FUNC_NAME s_scm_getuid
{
- return SCM_MAKINUM (0L + getuid ());
+ return scm_from_int (getuid ());
}
#undef FUNC_NAME
"Return an integer representing the current real group ID.")
#define FUNC_NAME s_scm_getgid
{
- return SCM_MAKINUM (0L + getgid ());
+ return scm_from_int (getgid ());
}
#undef FUNC_NAME
#define FUNC_NAME s_scm_geteuid
{
#ifdef HAVE_GETEUID
- return SCM_MAKINUM (0L + geteuid ());
+ return scm_from_int (geteuid ());
#else
- return SCM_MAKINUM (0L + getuid ());
+ return scm_from_int (getuid ());
#endif
}
#undef FUNC_NAME
#define FUNC_NAME s_scm_getegid
{
#ifdef HAVE_GETEUID
- return SCM_MAKINUM (0L + getegid ());
+ return scm_from_int (getegid ());
#else
- return SCM_MAKINUM (0L + getgid ());
+ return scm_from_int (getgid ());
#endif
}
#undef FUNC_NAME
"The return value is unspecified.")
#define FUNC_NAME s_scm_setuid
{
- SCM_VALIDATE_INUM (1, id);
- if (setuid (SCM_INUM (id)) != 0)
+ if (setuid (scm_to_int (id)) != 0)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
"The return value is unspecified.")
#define FUNC_NAME s_scm_setgid
{
- SCM_VALIDATE_INUM (1, id);
- if (setgid (SCM_INUM (id)) != 0)
+ if (setgid (scm_to_int (id)) != 0)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
{
int rv;
- SCM_VALIDATE_INUM (1, id);
#ifdef HAVE_SETEUID
- rv = seteuid (SCM_INUM (id));
+ rv = seteuid (scm_to_int (id));
#else
- rv = setuid (SCM_INUM (id));
+ rv = setuid (scm_to_int (id));
#endif
if (rv != 0)
SCM_SYSERROR;
{
int rv;
- SCM_VALIDATE_INUM (1, id);
#ifdef HAVE_SETEUID
- rv = setegid (SCM_INUM (id));
+ rv = setegid (scm_to_int (id));
#else
- rv = setgid (SCM_INUM (id));
+ rv = setgid (scm_to_int (id));
#endif
if (rv != 0)
SCM_SYSERROR;
{
int (*fn)();
fn = (int (*) ()) getpgrp;
- return SCM_MAKINUM (fn (0));
+ return scm_from_int (fn (0));
}
#undef FUNC_NAME
#endif /* HAVE_GETPGRP */
"The return value is unspecified.")
#define FUNC_NAME s_scm_setpgid
{
- SCM_VALIDATE_INUM (1, pid);
- SCM_VALIDATE_INUM (2, pgid);
/* FIXME(?): may be known as setpgrp. */
- if (setpgid (SCM_INUM (pid), SCM_INUM (pgid)) != 0)
+ if (setpgid (scm_to_int (pid), scm_to_int (pgid)) != 0)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_SETSID */
+
+/* ttyname returns its result in a single static buffer, hence
+ scm_i_misc_mutex for thread safety. In glibc 2.3.2 two threads
+ continuously calling ttyname will otherwise get an overwrite quite
+ easily.
+
+ ttyname_r (when available) could be used instead of scm_i_misc_mutex, but
+ there's probably little to be gained in either speed or parallelism. */
+
#ifdef HAVE_TTYNAME
SCM_DEFINE (scm_ttyname, "ttyname", 1, 0, 0,
(SCM port),
#define FUNC_NAME s_scm_ttyname
{
char *result;
- int fd;
+ int fd, err;
+ SCM ret;
port = SCM_COERCE_OUTPORT (port);
SCM_VALIDATE_OPPORT (1, port);
if (!SCM_FPORTP (port))
return SCM_BOOL_F;
fd = SCM_FPORT_FDES (port);
+
+ scm_i_scm_pthread_mutex_lock (&scm_i_misc_mutex);
SCM_SYSCALL (result = ttyname (fd));
+ err = errno;
+ ret = scm_from_locale_string (result);
+ scm_i_pthread_mutex_unlock (&scm_i_misc_mutex);
+
if (!result)
- SCM_SYSERROR;
- /* result could be overwritten by another call to ttyname */
- return (scm_makfrom0str (result));
+ {
+ errno = err;
+ SCM_SYSERROR;
+ }
+ return ret;
}
#undef FUNC_NAME
#endif /* HAVE_TTYNAME */
+
+/* For thread safety "buf" is used instead of NULL for the ctermid static
+ buffer. Actually it's unlikely the controlling terminal will change
+ during program execution, and indeed on glibc (2.3.2) it's always just
+ "/dev/tty", but L_ctermid on the stack is easy and fast and guarantees
+ safety everywhere. */
#ifdef HAVE_CTERMID
SCM_DEFINE (scm_ctermid, "ctermid", 0, 0, 0,
(),
"terminal for the current process.")
#define FUNC_NAME s_scm_ctermid
{
- char *result = ctermid (NULL);
+ char buf[L_ctermid];
+ char *result = ctermid (buf);
if (*result == '\0')
SCM_SYSERROR;
- return scm_makfrom0str (result);
+ return scm_from_locale_string (result);
}
#undef FUNC_NAME
#endif /* HAVE_CTERMID */
fd = SCM_FPORT_FDES (port);
if ((pgid = tcgetpgrp (fd)) == -1)
SCM_SYSERROR;
- return SCM_MAKINUM (pgid);
+ return scm_from_int (pgid);
}
#undef FUNC_NAME
#endif /* HAVE_TCGETPGRP */
port = SCM_COERCE_OUTPORT (port);
SCM_VALIDATE_OPFPORT (1, port);
- SCM_VALIDATE_INUM (2, pgid);
fd = SCM_FPORT_FDES (port);
- if (tcsetpgrp (fd, SCM_INUM (pgid)) == -1)
+ if (tcsetpgrp (fd, scm_to_int (pgid)) == -1)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_TCSETPGRP */
-/* return a newly allocated array of char pointers to each of the strings
- in args, with a terminating NULL pointer. */
-/* Note: a similar function is defined in dynl.c, but we don't necessarily
- want to export it. */
-static char **allocate_string_pointers (SCM args)
+static void
+free_string_pointers (void *data)
{
- char **result;
- int n_args = scm_ilength (args);
- int i;
-
- SCM_ASSERT (n_args >= 0, args, SCM_ARGn, "allocate_string_pointers");
- result = (char **) scm_malloc ((n_args + 1) * sizeof (char *));
- result[n_args] = NULL;
- for (i = 0; i < n_args; i++)
- {
- SCM car = SCM_CAR (args);
-
- if (!SCM_STRINGP (car))
- {
- free (result);
- scm_wrong_type_arg ("allocate_string_pointers", SCM_ARGn, car);
- }
- result[i] = SCM_STRING_CHARS (SCM_CAR (args));
- args = SCM_CDR (args);
- }
- return result;
+ scm_i_free_string_pointers ((char **)data);
}
SCM_DEFINE (scm_execl, "execl", 1, 0, 1,
"call, but we call it @code{execl} because of its Scheme calling interface.")
#define FUNC_NAME s_scm_execl
{
- char **execargv;
- int save_errno;
- SCM_VALIDATE_STRING (1, filename);
- execargv = allocate_string_pointers (args);
- execv (SCM_STRING_CHARS (filename), execargv);
- save_errno = errno;
- free (execargv);
- errno = save_errno;
+ char *exec_file;
+ char **exec_argv;
+
+ scm_dynwind_begin (0);
+
+ exec_file = scm_to_locale_string (filename);
+ scm_dynwind_free (exec_file);
+
+ exec_argv = scm_i_allocate_string_pointers (args);
+ scm_dynwind_unwind_handler (free_string_pointers, exec_argv,
+ SCM_F_WIND_EXPLICITLY);
+
+ execv (exec_file,
+#ifdef __MINGW32__
+ /* extra "const" in mingw formals, provokes warning from gcc */
+ (const char * const *)
+#endif
+ exec_argv);
SCM_SYSERROR;
+
/* not reached. */
+ scm_dynwind_end ();
return SCM_BOOL_F;
}
#undef FUNC_NAME
"call, but we call it @code{execlp} because of its Scheme calling interface.")
#define FUNC_NAME s_scm_execlp
{
- char **execargv;
- int save_errno;
- SCM_VALIDATE_STRING (1, filename);
- execargv = allocate_string_pointers (args);
- execvp (SCM_STRING_CHARS (filename), execargv);
- save_errno = errno;
- free (execargv);
- errno = save_errno;
+ char *exec_file;
+ char **exec_argv;
+
+ scm_dynwind_begin (0);
+
+ exec_file = scm_to_locale_string (filename);
+ scm_dynwind_free (exec_file);
+
+ exec_argv = scm_i_allocate_string_pointers (args);
+ scm_dynwind_unwind_handler (free_string_pointers, exec_argv,
+ SCM_F_WIND_EXPLICITLY);
+
+ execvp (exec_file,
+#ifdef __MINGW32__
+ /* extra "const" in mingw formals, provokes warning from gcc */
+ (const char * const *)
+#endif
+ exec_argv);
SCM_SYSERROR;
+
/* not reached. */
+ scm_dynwind_end ();
return SCM_BOOL_F;
}
#undef FUNC_NAME
-static char **
-environ_list_to_c (SCM envlist, int arg, const char *proc)
-{
- int num_strings;
- char **result;
- int i;
-
- num_strings = scm_ilength (envlist);
- SCM_ASSERT (num_strings >= 0, envlist, arg, proc);
- result = (char **) scm_malloc ((num_strings + 1) * sizeof (char *));
- if (result == NULL)
- scm_memory_error (proc);
- for (i = 0; !SCM_NULL_OR_NIL_P (envlist); ++i, envlist = SCM_CDR (envlist))
- {
- SCM str = SCM_CAR (envlist);
- int len;
- char *src;
-
- SCM_ASSERT (SCM_STRINGP (str), envlist, arg, proc);
- len = SCM_STRING_LENGTH (str);
- src = SCM_STRING_CHARS (str);
- result[i] = scm_malloc (len + 1);
- if (result[i] == NULL)
- scm_memory_error (proc);
- memcpy (result[i], src, len);
- result[i][len] = 0;
- }
- result[i] = 0;
- return result;
-}
/* OPTIMIZE-ME: scm_execle doesn't need malloced copies of the environment
list strings the way environ_list_to_c gives. */
"call, but we call it @code{execle} because of its Scheme calling interface.")
#define FUNC_NAME s_scm_execle
{
- char **execargv;
+ char **exec_argv;
char **exec_env;
- int save_errno, i;
+ char *exec_file;
- SCM_VALIDATE_STRING (1, filename);
-
- execargv = allocate_string_pointers (args);
- exec_env = environ_list_to_c (env, SCM_ARG2, FUNC_NAME);
- execve (SCM_STRING_CHARS (filename), execargv, exec_env);
- save_errno = errno;
- free (execargv);
- for (i = 0; exec_env[i] != NULL; i++)
- free (exec_env[i]);
- free (exec_env);
- errno = save_errno;
+ scm_dynwind_begin (0);
+
+ exec_file = scm_to_locale_string (filename);
+ scm_dynwind_free (exec_file);
+
+ exec_argv = scm_i_allocate_string_pointers (args);
+ scm_dynwind_unwind_handler (free_string_pointers, exec_argv,
+ SCM_F_WIND_EXPLICITLY);
+
+ exec_env = scm_i_allocate_string_pointers (env);
+ scm_dynwind_unwind_handler (free_string_pointers, exec_env,
+ SCM_F_WIND_EXPLICITLY);
+
+ execve (exec_file,
+#ifdef __MINGW32__
+ /* extra "const" in mingw formals, provokes warning from gcc */
+ (const char * const *)
+#endif
+ exec_argv,
+#ifdef __MINGW32__
+ /* extra "const" in mingw formals, provokes warning from gcc */
+ (const char * const *)
+#endif
+ exec_env);
SCM_SYSERROR;
+
/* not reached. */
+ scm_dynwind_end ();
return SCM_BOOL_F;
}
#undef FUNC_NAME
pid = fork ();
if (pid == -1)
SCM_SYSERROR;
- return SCM_MAKINUM (0L+pid);
+ return scm_from_int (pid);
}
#undef FUNC_NAME
#endif /* HAVE_FORK */
SCM result = scm_c_make_vector (5, SCM_UNSPECIFIED);
if (uname (&buf) < 0)
SCM_SYSERROR;
- SCM_VECTOR_SET(result, 0, scm_makfrom0str (buf.sysname));
- SCM_VECTOR_SET(result, 1, scm_makfrom0str (buf.nodename));
- SCM_VECTOR_SET(result, 2, scm_makfrom0str (buf.release));
- SCM_VECTOR_SET(result, 3, scm_makfrom0str (buf.version));
- SCM_VECTOR_SET(result, 4, scm_makfrom0str (buf.machine));
+ SCM_SIMPLE_VECTOR_SET(result, 0, scm_from_locale_string (buf.sysname));
+ SCM_SIMPLE_VECTOR_SET(result, 1, scm_from_locale_string (buf.nodename));
+ SCM_SIMPLE_VECTOR_SET(result, 2, scm_from_locale_string (buf.release));
+ SCM_SIMPLE_VECTOR_SET(result, 3, scm_from_locale_string (buf.version));
+ SCM_SIMPLE_VECTOR_SET(result, 4, scm_from_locale_string (buf.machine));
/*
a linux special?
- SCM_VECTOR_SET(result, 5, scm_makfrom0str (buf.domainname));
+ SCM_SIMPLE_VECTOR_SET(result, 5, scm_from_locale_string (buf.domainname));
*/
return result;
}
{
char **new_environ;
- new_environ = environ_list_to_c (env, SCM_ARG1, FUNC_NAME);
+ new_environ = scm_i_allocate_string_pointers (env);
/* Free the old environment, except when called for the first
* time.
*/
{
- char **ep;
static int first = 1;
if (!first)
- {
- for (ep = environ; *ep != NULL; ep++)
- free (*ep);
- free ((char *) environ);
- }
+ scm_i_free_string_pointers (environ);
first = 0;
}
environ = new_environ;
if (rv == NULL)
/* not SCM_SYSERROR since errno probably not set. */
SCM_MISC_ERROR ("tmpnam failed", SCM_EOL);
- return scm_makfrom0str (name);
+ return scm_from_locale_string (name);
}
#undef FUNC_NAME
SCM_DEFINE (scm_mkstemp, "mkstemp!", 1, 0, 0,
(SCM tmpl),
- "Create a new unique file in the file system and returns a new\n"
+ "Create a new unique file in the file system and return a new\n"
"buffered port open for reading and writing to the file.\n"
+ "\n"
"@var{tmpl} is a string specifying where the file should be\n"
- "created: it must end with @code{XXXXXX} and will be changed in\n"
- "place to return the name of the temporary file.")
+ "created: it must end with @samp{XXXXXX} and those @samp{X}s\n"
+ "will be changed in the string to return the name of the file.\n"
+ "(@code{port-filename} on the port also gives the name.)\n"
+ "\n"
+ "POSIX doesn't specify the permissions mode of the file, on GNU\n"
+ "and most systems it's @code{#o600}. An application can use\n"
+ "@code{chmod} to relax that if desired. For example\n"
+ "@code{#o666} less @code{umask}, which is usual for ordinary\n"
+ "file creation,\n"
+ "\n"
+ "@example\n"
+ "(let ((port (mkstemp! (string-copy \"/tmp/myfile-XXXXXX\"))))\n"
+ " (chmod port (logand #o666 (lognot (umask))))\n"
+ " ...)\n"
+ "@end example")
#define FUNC_NAME s_scm_mkstemp
{
char *c_tmpl;
int rv;
- SCM_VALIDATE_STRING_COPY (1, tmpl, c_tmpl);
+ scm_dynwind_begin (0);
+
+ c_tmpl = scm_to_locale_string (tmpl);
+ scm_dynwind_free (c_tmpl);
+
SCM_SYSCALL (rv = mkstemp (c_tmpl));
if (rv == -1)
SCM_SYSERROR;
+
+ scm_substring_move_x (scm_from_locale_string (c_tmpl),
+ SCM_INUM0, scm_string_length (tmpl),
+ tmpl, SCM_INUM0);
+
+ scm_dynwind_end ();
return scm_fdes_to_port (rv, "w+", tmpl);
}
#undef FUNC_NAME
int rv;
struct utimbuf utm_tmp;
- SCM_VALIDATE_STRING (1, pathname);
if (SCM_UNBNDP (actime))
SCM_SYSCALL (time (&utm_tmp.actime));
else
else
utm_tmp.modtime = SCM_NUM2ULONG (3, modtime);
- SCM_SYSCALL (rv = utime (SCM_STRING_CHARS (pathname), &utm_tmp));
+ STRING_SYSCALL (pathname, c_pathname,
+ rv = utime (c_pathname, &utm_tmp));
if (rv != 0)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
SCM_DEFINE (scm_access, "access?", 2, 0, 0,
(SCM path, SCM how),
- "Return @code{#t} if @var{path} corresponds to an existing file\n"
- "and the current process has the type of access specified by\n"
- "@var{how}, otherwise @code{#f}. @var{how} should be specified\n"
- "using the values of the variables listed below. Multiple\n"
- "values can be combined using a bitwise or, in which case\n"
- "@code{#t} will only be returned if all accesses are granted.\n"
+ "Test accessibility of a file under the real UID and GID of the\n"
+ "calling process. The return is @code{#t} if @var{path} exists\n"
+ "and the permissions requested by @var{how} are all allowed, or\n"
+ "@code{#f} if not.\n"
"\n"
- "Permissions are checked using the real id of the current\n"
- "process, not the effective id, although it's the effective id\n"
- "which determines whether the access would actually be granted.\n"
+ "@var{how} is an integer which is one of the following values,\n"
+ "or a bitwise-OR (@code{logior}) of multiple values.\n"
"\n"
"@defvar R_OK\n"
- "test for read permission.\n"
+ "Test for read permission.\n"
"@end defvar\n"
"@defvar W_OK\n"
- "test for write permission.\n"
+ "Test for write permission.\n"
"@end defvar\n"
"@defvar X_OK\n"
- "test for execute permission.\n"
+ "Test for execute permission.\n"
"@end defvar\n"
"@defvar F_OK\n"
- "test for existence of the file.\n"
- "@end defvar")
+ "Test for existence of the file. This is implied by each of the\n"
+ "other tests, so there's no need to combine it with them.\n"
+ "@end defvar\n"
+ "\n"
+ "It's important to note that @code{access?} does not simply\n"
+ "indicate what will happen on attempting to read or write a\n"
+ "file. In normal circumstances it does, but in a set-UID or\n"
+ "set-GID program it doesn't because @code{access?} tests the\n"
+ "real ID, whereas an open or execute attempt uses the effective\n"
+ "ID.\n"
+ "\n"
+ "A program which will never run set-UID/GID can ignore the\n"
+ "difference between real and effective IDs, but for maximum\n"
+ "generality, especially in library functions, it's best not to\n"
+ "use @code{access?} to predict the result of an open or execute,\n"
+ "instead simply attempt that and catch any exception.\n"
+ "\n"
+ "The main use for @code{access?} is to let a set-UID/GID program\n"
+ "determine what the invoking user would have been allowed to do,\n"
+ "without the greater (or perhaps lesser) privileges afforded by\n"
+ "the effective ID. For more on this, see ``Testing File\n"
+ "Access'' in The GNU C Library Reference Manual.")
#define FUNC_NAME s_scm_access
{
int rv;
- SCM_VALIDATE_STRING (1, path);
- SCM_VALIDATE_INUM (2, how);
- rv = access (SCM_STRING_CHARS (path), SCM_INUM (how));
- return SCM_NEGATE_BOOL(rv);
+ WITH_STRING (path, c_path,
+ rv = access (c_path, scm_to_int (how)));
+ return scm_from_bool (!rv);
}
#undef FUNC_NAME
"Return an integer representing the current process ID.")
#define FUNC_NAME s_scm_getpid
{
- return SCM_MAKINUM ((unsigned long) getpid ());
+ return scm_from_ulong (getpid ());
}
#undef FUNC_NAME
#define FUNC_NAME s_scm_putenv
{
int rv;
- char *ptr;
-
- SCM_VALIDATE_STRING (1, str);
+ char *c_str = scm_to_locale_string (str);
+#ifdef __MINGW32__
+ size_t len = strlen (c_str);
+#endif
- if (strchr (SCM_STRING_CHARS (str), '=') == NULL)
+ if (strchr (c_str, '=') == NULL)
{
#ifdef HAVE_UNSETENV
/* No '=' in argument means we should remove the variable from
the environment. Not all putenvs understand this (for instance
FreeBSD 4.8 doesn't). To be safe, we do it explicitely using
unsetenv. */
- unsetenv (SCM_STRING_CHARS (str));
+ unsetenv (c_str);
+ free (c_str);
#else
/* On e.g. Win32 hosts putenv() called with 'name=' removes the
environment variable 'name'. */
int e;
- ptr = scm_malloc (SCM_STRING_LENGTH (str) + 2);
- if (ptr == NULL)
- SCM_MEMORY_ERROR;
- strncpy (ptr, SCM_STRING_CHARS (str), SCM_STRING_LENGTH (str));
- ptr[SCM_STRING_LENGTH (str)] = '=';
- ptr[SCM_STRING_LENGTH (str) + 1] = 0;
+ char *ptr = scm_malloc (len + 2);
+ strcpy (ptr, c_str);
+ strcpy (ptr+len, "=");
rv = putenv (ptr);
- e = errno; free (ptr); errno = e;
+ e = errno; free (ptr); free (c_str); errno = e;
if (rv < 0)
SCM_SYSERROR;
#endif /* !HAVE_UNSETENV */
}
else
{
- /* must make a new copy to be left in the environment, safe from gc. */
- ptr = scm_malloc (SCM_STRING_LENGTH (str) + 1);
- if (ptr == NULL)
- SCM_MEMORY_ERROR;
- strncpy (ptr, SCM_STRING_CHARS (str), SCM_STRING_LENGTH (str));
-
#ifdef __MINGW32__
/* If str is "FOO=", ie. attempting to set an empty string, then
we need to see if it's been successful. On MINGW, "FOO="
set "FOO= ", ie. a space, and then modify the string returned
by getenv. It's not enough just to modify the string we set,
because MINGW putenv copies it. */
- if (ptr[SCM_STRING_LENGTH (str) - 1] == '=')
+
+ if (c_str[len-1] == '=')
{
- char *alt;
- SCM name = scm_substring (str, SCM_MAKINUM (0),
- SCM_MAKINUM (SCM_STRING_LENGTH (str) - 1));
- if (getenv (SCM_STRING_CHARS (name)) == NULL)
- {
- alt = scm_malloc (SCM_STRING_LENGTH (str) + 2);
- if (alt == NULL)
- {
- free (ptr);
- SCM_MEMORY_ERROR;
- }
- memcpy (alt, SCM_STRING_CHARS (str), SCM_STRING_LENGTH (str));
- alt[SCM_STRING_LENGTH (str)] = ' ';
- alt[SCM_STRING_LENGTH (str) + 1] = '\0';
- rv = putenv (alt);
- if (rv < 0)
- SCM_SYSERROR;
- free (ptr); /* don't need the old string we gave to putenv */
+ char *ptr = scm_malloc (len+2);
+ strcpy (ptr, c_str);
+ strcpy (ptr+len, " ");
+ rv = putenv (ptr);
+ if (rv < 0)
+ {
+ int eno = errno;
+ free (c_str);
+ errno = eno;
+ SCM_SYSERROR;
}
- alt = getenv (SCM_STRING_CHARS (name));
- alt[0] = '\0';
+ /* truncate to just the name */
+ c_str[len-1] = '\0';
+ ptr = getenv (c_str);
+ if (ptr)
+ ptr[0] = '\0';
return SCM_UNSPECIFIED;
}
#endif /* __MINGW32__ */
- ptr[SCM_STRING_LENGTH (str)] = 0;
- rv = putenv (ptr);
+ /* Leave c_str in the environment. */
+
+ rv = putenv (c_str);
if (rv < 0)
SCM_SYSERROR;
}
char *clocale;
char *rv;
- SCM_VALIDATE_INUM (1, category);
+ scm_dynwind_begin (0);
+
if (SCM_UNBNDP (locale))
{
clocale = NULL;
}
else
{
- SCM_VALIDATE_STRING (2, locale);
- clocale = SCM_STRING_CHARS (locale);
+ clocale = scm_to_locale_string (locale);
+ scm_dynwind_free (clocale);
}
- rv = setlocale (SCM_INUM (category), clocale);
+ rv = setlocale (scm_i_to_lc_category (category, 1), clocale);
if (rv == NULL)
- SCM_SYSERROR;
- return scm_makfrom0str (rv);
+ {
+ /* POSIX and C99 don't say anything about setlocale setting errno, so
+ force a sensible value here. glibc leaves ENOENT, which would be
+ fine, but it's not a documented feature. */
+ errno = EINVAL;
+ SCM_SYSERROR;
+ }
+
+ /* Recompute the standard SRFI-14 character sets in a locale-dependent
+ (actually charset-dependent) way. */
+ scm_srfi_14_compute_char_sets ();
+
+ scm_dynwind_end ();
+ return scm_from_locale_string (rv);
}
#undef FUNC_NAME
#endif /* HAVE_SETLOCALE */
#define FUNC_NAME s_scm_mknod
{
int val;
- char *p;
+ const char *p;
int ctype = 0;
SCM_VALIDATE_STRING (1, path);
SCM_VALIDATE_SYMBOL (2, type);
- SCM_VALIDATE_INUM (3, perms);
- SCM_VALIDATE_INUM (4, dev);
- p = SCM_SYMBOL_CHARS (type);
+ p = scm_i_symbol_chars (type);
if (strcmp (p, "regular") == 0)
ctype = S_IFREG;
else if (strcmp (p, "directory") == 0)
ctype = S_IFDIR;
+#ifdef S_IFLNK
+ /* systems without symlinks probably don't have S_IFLNK defined */
else if (strcmp (p, "symlink") == 0)
ctype = S_IFLNK;
+#endif
else if (strcmp (p, "block-special") == 0)
ctype = S_IFBLK;
else if (strcmp (p, "char-special") == 0)
else
SCM_OUT_OF_RANGE (2, type);
- SCM_SYSCALL (val = mknod (SCM_STRING_CHARS (path), ctype | SCM_INUM (perms),
- SCM_INUM (dev)));
+ STRING_SYSCALL (path, c_path,
+ val = mknod (c_path,
+ ctype | scm_to_int (perms),
+ scm_to_int (dev)));
if (val != 0)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
"The return value is unspecified.")
#define FUNC_NAME s_scm_nice
{
- SCM_VALIDATE_INUM (1, incr);
- if (nice(SCM_INUM(incr)) != 0)
+ /* nice() returns "prio-NZERO" on success or -1 on error, but -1 can arise
+ from "prio-NZERO", so an error must be detected from errno changed */
+ errno = 0;
+ nice (scm_to_int (incr));
+ if (errno != 0)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_SYNC */
+
+/* crypt() returns a pointer to a static buffer, so we use scm_i_misc_mutex
+ to avoid another thread overwriting it. A test program running crypt
+ continuously in two threads can be quickly seen tripping this problem.
+ crypt() is pretty slow normally, so a mutex shouldn't add much overhead.
+
+ glibc has a thread-safe crypt_r, but (in version 2.3.2) it runs a lot
+ slower (about 5x) than plain crypt if you pass an uninitialized data
+ block each time. Presumably there's some one-time setups. The best way
+ to use crypt_r for parallel execution in multiple threads would probably
+ be to maintain a little pool of initialized crypt_data structures, take
+ one and use it, then return it to the pool. That pool could be garbage
+ collected so it didn't add permanently to memory use if only a few crypt
+ calls are made. But we expect crypt will be used rarely, and even more
+ rarely will there be any desire for lots of parallel execution on
+ multiple cpus. So for now we don't bother with anything fancy, just
+ ensure it works. */
+
#if HAVE_CRYPT
-SCM_DEFINE (scm_crypt, "crypt", 2, 0, 0,
+SCM_DEFINE (scm_crypt, "crypt", 2, 0, 0,
(SCM key, SCM salt),
"Encrypt @var{key} using @var{salt} as the salt value to the\n"
"crypt(3) library call.")
#define FUNC_NAME s_scm_crypt
{
- char * p;
+ SCM ret;
+ char *c_key, *c_salt;
+
+ scm_dynwind_begin (0);
+ scm_i_dynwind_pthread_mutex_lock (&scm_i_misc_mutex);
- SCM_VALIDATE_STRING (1, key);
- SCM_VALIDATE_STRING (2, salt);
+ c_key = scm_to_locale_string (key);
+ scm_dynwind_free (c_key);
+ c_salt = scm_to_locale_string (salt);
+ scm_dynwind_free (c_salt);
- p = crypt (SCM_STRING_CHARS (key), SCM_STRING_CHARS (salt));
- return scm_makfrom0str (p);
+ ret = scm_from_locale_string (crypt (c_key, c_salt));
+
+ scm_dynwind_end ();
+ return ret;
}
#undef FUNC_NAME
#endif /* HAVE_CRYPT */
"root directory.")
#define FUNC_NAME s_scm_chroot
{
- SCM_VALIDATE_STRING (1, path);
+ int rv;
- if (chroot (SCM_STRING_CHARS (path)) == -1)
+ WITH_STRING (path, c_path,
+ rv = chroot (c_path));
+ if (rv == -1)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
p = getlogin ();
if (!p || !*p)
return SCM_BOOL_F;
- return scm_makfrom0str (p);
+ return scm_from_locale_string (p);
}
#undef FUNC_NAME
#endif /* HAVE_GETLOGIN */
p = cuserid (buf);
if (!p || !*p)
return SCM_BOOL_F;
- return scm_makfrom0str (p);
+ return scm_from_locale_string (p);
}
#undef FUNC_NAME
#endif /* HAVE_CUSERID */
{
int cwhich, cwho, ret;
- SCM_VALIDATE_INUM_COPY (1, which, cwhich);
- SCM_VALIDATE_INUM_COPY (2, who, cwho);
+ cwhich = scm_to_int (which);
+ cwho = scm_to_int (who);
/* We have to clear errno and examine it later, because -1 is a
legal return value for getpriority(). */
ret = getpriority (cwhich, cwho);
if (errno != 0)
SCM_SYSERROR;
- return SCM_MAKINUM (ret);
+ return scm_from_int (ret);
}
#undef FUNC_NAME
#endif /* HAVE_GETPRIORITY */
{
int cwhich, cwho, cprio;
- SCM_VALIDATE_INUM_COPY (1, which, cwhich);
- SCM_VALIDATE_INUM_COPY (2, who, cwho);
- SCM_VALIDATE_INUM_COPY (3, prio, cprio);
+ cwhich = scm_to_int (which);
+ cwho = scm_to_int (who);
+ cprio = scm_to_int (prio);
if (setpriority (cwhich, cwho, cprio) == -1)
SCM_SYSERROR;
SCM_VALIDATE_STRING (1, prompt);
- p = getpass(SCM_STRING_CHARS (prompt));
- passwd = scm_makfrom0str (p);
+ WITH_STRING (prompt, c_prompt,
+ p = getpass(c_prompt));
+ passwd = scm_from_locale_string (p);
/* Clear out the password in the static buffer. */
memset (p, 0, strlen (p));
(SCM file, SCM operation),
"Apply or remove an advisory lock on an open file.\n"
"@var{operation} specifies the action to be done:\n"
- "@table @code\n"
- "@item LOCK_SH\n"
+ "\n"
+ "@defvar LOCK_SH\n"
"Shared lock. More than one process may hold a shared lock\n"
"for a given file at a given time.\n"
- "@item LOCK_EX\n"
+ "@end defvar\n"
+ "@defvar LOCK_EX\n"
"Exclusive lock. Only one process may hold an exclusive lock\n"
"for a given file at a given time.\n"
- "@item LOCK_UN\n"
+ "@end defvar\n"
+ "@defvar LOCK_UN\n"
"Unlock the file.\n"
- "@item LOCK_NB\n"
- "Don't block when locking. May be specified by bitwise OR'ing\n"
- "it to one of the other operations.\n"
- "@end table\n"
+ "@end defvar\n"
+ "@defvar LOCK_NB\n"
+ "Don't block when locking. This is combined with one of the\n"
+ "other operations using @code{logior}. If @code{flock} would\n"
+ "block an @code{EWOULDBLOCK} error is thrown.\n"
+ "@end defvar\n"
+ "\n"
"The return value is not specified. @var{file} may be an open\n"
- "file descriptor or an open file descriptor port.")
+ "file descriptor or an open file descriptor port.\n"
+ "\n"
+ "Note that @code{flock} does not lock files across NFS.")
#define FUNC_NAME s_scm_flock
{
- int coperation, fdes;
+ int fdes;
- if (SCM_INUMP (file))
- fdes = SCM_INUM (file);
+ if (scm_is_integer (file))
+ fdes = scm_to_int (file);
else
{
SCM_VALIDATE_OPFPORT (2, file);
fdes = SCM_FPORT_FDES (file);
}
- SCM_VALIDATE_INUM_COPY (2, operation, coperation);
- if (flock (fdes, coperation) == -1)
+ if (flock (fdes, scm_to_int (operation)) == -1)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
"specified.")
#define FUNC_NAME s_scm_sethostname
{
- SCM_VALIDATE_STRING (1, name);
+ int rv;
- if (sethostname (SCM_STRING_CHARS (name), SCM_STRING_LENGTH (name)) == -1)
+ WITH_STRING (name, c_name,
+ rv = sethostname (c_name, strlen(c_name)));
+ if (rv == -1)
SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
#undef FUNC_NAME
#endif /* HAVE_SETHOSTNAME */
+
#if HAVE_GETHOSTNAME
SCM_DEFINE (scm_gethostname, "gethostname", 0, 0, 0,
(void),
"Return the host name of the current processor.")
#define FUNC_NAME s_scm_gethostname
{
- /* 256 is for Solaris, under Linux ENAMETOOLONG is returned if not
- large enough. */
- int len = 256, res;
- char *p = scm_malloc (len);
- SCM name;
+#ifdef MAXHOSTNAMELEN
+
+ /* Various systems define MAXHOSTNAMELEN (including Solaris in fact).
+ * On GNU/Linux this doesn't include the terminating '\0', hence "+ 1". */
+ const int len = MAXHOSTNAMELEN + 1;
+ char *const p = scm_malloc (len);
+ const int res = gethostname (p, len);
+
+ scm_dynwind_begin (0);
+ scm_dynwind_unwind_handler (free, p, 0);
+
+#else
+
+ /* Default 256 is for Solaris, under Linux ENAMETOOLONG is returned if not
+ * large enough. SUSv2 specifies 255 maximum too, apparently. */
+ int len = 256;
+ int res;
+ char *p;
+
+# if HAVE_SYSCONF && defined (_SC_HOST_NAME_MAX)
+
+ /* POSIX specifies the HOST_NAME_MAX system parameter for the max size,
+ * which may reflect a particular kernel configuration.
+ * Must watch out for this existing but giving -1, as happens for instance
+ * in gnu/linux glibc 2.3.2. */
+ {
+ const long int n = sysconf (_SC_HOST_NAME_MAX);
+ if (n != -1L)
+ len = n;
+ }
+
+# endif
+
+ p = scm_malloc (len);
+
+ scm_dynwind_begin (0);
+ scm_dynwind_unwind_handler (free, p, 0);
res = gethostname (p, len);
while (res == -1 && errno == ENAMETOOLONG)
{
- p = scm_realloc (p, len * 2);
len *= 2;
+
+ /* scm_realloc may throw an exception. */
+ p = scm_realloc (p, len);
res = gethostname (p, len);
}
+
+#endif
+
if (res == -1)
{
+ const int save_errno = errno;
+
+ /* No guile exceptions can occur before we have freed p's memory. */
+ scm_dynwind_end ();
free (p);
+
+ errno = save_errno;
SCM_SYSERROR;
}
- name = scm_makfrom0str (p);
- free (p);
- return name;
+ else
+ {
+ /* scm_from_locale_string may throw an exception. */
+ const SCM name = scm_from_locale_string (p);
+
+ /* No guile exceptions can occur before we have freed p's memory. */
+ scm_dynwind_end ();
+ free (p);
+
+ return name;
+ }
}
#undef FUNC_NAME
#endif /* HAVE_GETHOSTNAME */
+
void
scm_init_posix ()
{
scm_add_feature ("EIDs");
#endif
#ifdef WAIT_ANY
- scm_c_define ("WAIT_ANY", SCM_MAKINUM (WAIT_ANY));
+ scm_c_define ("WAIT_ANY", scm_from_int (WAIT_ANY));
#endif
#ifdef WAIT_MYPGRP
- scm_c_define ("WAIT_MYPGRP", SCM_MAKINUM (WAIT_MYPGRP));
+ scm_c_define ("WAIT_MYPGRP", scm_from_int (WAIT_MYPGRP));
#endif
#ifdef WNOHANG
- scm_c_define ("WNOHANG", SCM_MAKINUM (WNOHANG));
+ scm_c_define ("WNOHANG", scm_from_int (WNOHANG));
#endif
#ifdef WUNTRACED
- scm_c_define ("WUNTRACED", SCM_MAKINUM (WUNTRACED));
+ scm_c_define ("WUNTRACED", scm_from_int (WUNTRACED));
#endif
/* access() symbols. */
- scm_c_define ("R_OK", SCM_MAKINUM (R_OK));
- scm_c_define ("W_OK", SCM_MAKINUM (W_OK));
- scm_c_define ("X_OK", SCM_MAKINUM (X_OK));
- scm_c_define ("F_OK", SCM_MAKINUM (F_OK));
+ scm_c_define ("R_OK", scm_from_int (R_OK));
+ scm_c_define ("W_OK", scm_from_int (W_OK));
+ scm_c_define ("X_OK", scm_from_int (X_OK));
+ scm_c_define ("F_OK", scm_from_int (F_OK));
#ifdef LC_COLLATE
- scm_c_define ("LC_COLLATE", SCM_MAKINUM (LC_COLLATE));
+ scm_c_define ("LC_COLLATE", scm_from_int (LC_COLLATE));
#endif
#ifdef LC_CTYPE
- scm_c_define ("LC_CTYPE", SCM_MAKINUM (LC_CTYPE));
+ scm_c_define ("LC_CTYPE", scm_from_int (LC_CTYPE));
#endif
#ifdef LC_MONETARY
- scm_c_define ("LC_MONETARY", SCM_MAKINUM (LC_MONETARY));
+ scm_c_define ("LC_MONETARY", scm_from_int (LC_MONETARY));
#endif
#ifdef LC_NUMERIC
- scm_c_define ("LC_NUMERIC", SCM_MAKINUM (LC_NUMERIC));
+ scm_c_define ("LC_NUMERIC", scm_from_int (LC_NUMERIC));
#endif
#ifdef LC_TIME
- scm_c_define ("LC_TIME", SCM_MAKINUM (LC_TIME));
+ scm_c_define ("LC_TIME", scm_from_int (LC_TIME));
#endif
#ifdef LC_MESSAGES
- scm_c_define ("LC_MESSAGES", SCM_MAKINUM (LC_MESSAGES));
+ scm_c_define ("LC_MESSAGES", scm_from_int (LC_MESSAGES));
#endif
#ifdef LC_ALL
- scm_c_define ("LC_ALL", SCM_MAKINUM (LC_ALL));
+ scm_c_define ("LC_ALL", scm_from_int (LC_ALL));
+#endif
+#ifdef LC_PAPER
+ scm_c_define ("LC_PAPER", scm_from_int (LC_PAPER));
+#endif
+#ifdef LC_NAME
+ scm_c_define ("LC_NAME", scm_from_int (LC_NAME));
+#endif
+#ifdef LC_ADDRESS
+ scm_c_define ("LC_ADDRESS", scm_from_int (LC_ADDRESS));
+#endif
+#ifdef LC_TELEPHONE
+ scm_c_define ("LC_TELEPHONE", scm_from_int (LC_TELEPHONE));
+#endif
+#ifdef LC_MEASUREMENT
+ scm_c_define ("LC_MEASUREMENT", scm_from_int (LC_MEASUREMENT));
+#endif
+#ifdef LC_IDENTIFICATION
+ scm_c_define ("LC_IDENTIFICATION", scm_from_int (LC_IDENTIFICATION));
#endif
#ifdef PIPE_BUF
- scm_c_define ("PIPE_BUF", scm_long2num (PIPE_BUF));
+ scm_c_define ("PIPE_BUF", scm_from_long (PIPE_BUF));
#endif
#ifdef PRIO_PROCESS
- scm_c_define ("PRIO_PROCESS", SCM_MAKINUM (PRIO_PROCESS));
+ scm_c_define ("PRIO_PROCESS", scm_from_int (PRIO_PROCESS));
#endif
#ifdef PRIO_PGRP
- scm_c_define ("PRIO_PGRP", SCM_MAKINUM (PRIO_PGRP));
+ scm_c_define ("PRIO_PGRP", scm_from_int (PRIO_PGRP));
#endif
#ifdef PRIO_USER
- scm_c_define ("PRIO_USER", SCM_MAKINUM (PRIO_USER));
+ scm_c_define ("PRIO_USER", scm_from_int (PRIO_USER));
#endif
#ifdef LOCK_SH
- scm_c_define ("LOCK_SH", SCM_MAKINUM (LOCK_SH));
+ scm_c_define ("LOCK_SH", scm_from_int (LOCK_SH));
#endif
#ifdef LOCK_EX
- scm_c_define ("LOCK_EX", SCM_MAKINUM (LOCK_EX));
+ scm_c_define ("LOCK_EX", scm_from_int (LOCK_EX));
#endif
#ifdef LOCK_UN
- scm_c_define ("LOCK_UN", SCM_MAKINUM (LOCK_UN));
+ scm_c_define ("LOCK_UN", scm_from_int (LOCK_UN));
#endif
#ifdef LOCK_NB
- scm_c_define ("LOCK_NB", SCM_MAKINUM (LOCK_NB));
+ scm_c_define ("LOCK_NB", scm_from_int (LOCK_NB));
#endif
#include "libguile/cpp_sig_symbols.c"
HCoop / bpt / guile.git / blobdiff