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added sys::chroot()

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hyung-hwan 2020-01-10 04:29:27 +00:00
parent 44937ce12a
commit 13eba6b85d
1 changed files with 279 additions and 200 deletions
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451
hawk/lib/mod-sys.c
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@ -59,6 +59,14 @@
#define CLOSE_KEEPFD (1 << 0) #define CLOSE_KEEPFD (1 << 0)
/*
* IMPLEMENTATION NOTE:
* - hard failure only if it cannot make a final return value. (e.g. fnc_errmsg, fnc_fork, fnc_getpid)
* - soft failure if it cannot make a value for pass-by-referece argument (e.g. fnc_pipe)
* - soft failure for all other types of errors
*/
/* ------------------------------------------------------------------------ */ /* ------------------------------------------------------------------------ */
typedef enum syslog_type_t syslog_type_t; typedef enum syslog_type_t syslog_type_t;
@ -250,18 +258,20 @@ static HAWK_INLINE sys_node_t* get_sys_list_node (sys_list_t* sys_list, hawk_int
/* ------------------------------------------------------------------------ */ /* ------------------------------------------------------------------------ */
static sys_node_t* get_sys_list_node_with_arg (hawk_rtx_t* rtx, sys_list_t* sys_list, hawk_val_t* arg, int node_type) static sys_node_t* get_sys_list_node_with_arg (hawk_rtx_t* rtx, sys_list_t* sys_list, hawk_val_t* arg, int node_type, hawk_int_t* rx)
{ {
hawk_int_t id; hawk_int_t id;
sys_node_t* sys_node; sys_node_t* sys_node;
if (hawk_rtx_valtoint(rtx, arg, &id) <= -1) if (hawk_rtx_valtoint(rtx, arg, &id) <= -1)
{ {
*rx = ERRNUM_TO_RC(hawk_rtx_geterrnum(rtx));
set_errmsg_on_sys_list (rtx, sys_list, HAWK_T("illegal handle value")); set_errmsg_on_sys_list (rtx, sys_list, HAWK_T("illegal handle value"));
return HAWK_NULL; return HAWK_NULL;
} }
else if (!(sys_node = get_sys_list_node(sys_list, id))) else if (!(sys_node = get_sys_list_node(sys_list, id)))
{ {
*rx = ERRNUM_TO_RC(HAWK_EINVAL);
set_errmsg_on_sys_list (rtx, sys_list, HAWK_T("invalid handle - %zd"), (hawk_oow_t)id); set_errmsg_on_sys_list (rtx, sys_list, HAWK_T("invalid handle - %zd"), (hawk_oow_t)id);
return HAWK_NULL; return HAWK_NULL;
} }
@ -269,6 +279,7 @@ static sys_node_t* get_sys_list_node_with_arg (hawk_rtx_t* rtx, sys_list_t* sys_
if (sys_node->ctx.type != node_type) if (sys_node->ctx.type != node_type)
{ {
/* the handle is found but is not of the desired type */ /* the handle is found but is not of the desired type */
*rx = ERRNUM_TO_RC(HAWK_EINVAL);
set_errmsg_on_sys_list (rtx, sys_list, HAWK_T("wrong handle type")); set_errmsg_on_sys_list (rtx, sys_list, HAWK_T("wrong handle type"));
return HAWK_NULL; return HAWK_NULL;
} }
@ -297,30 +308,24 @@ static int fnc_close (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{ {
sys_list_t* sys_list; sys_list_t* sys_list;
sys_node_t* sys_node; sys_node_t* sys_node;
hawk_int_t rx = ERRNUM_TO_RC(HAWK_EOTHER); hawk_int_t rx = ERRNUM_TO_RC(HAWK_ENOERR);
hawk_int_t cflags = 0; hawk_int_t cflags = 0;
sys_list = rtx_to_sys_list(rtx, fi); sys_list = rtx_to_sys_list(rtx, fi);
sys_node = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 0), SYS_NODE_DATA_FD); sys_node = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 0), SYS_NODE_DATA_FD, &rx);
if (hawk_rtx_getnargs(rtx) >= 2 && (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 1), &cflags) <= -1 || cflags < 0)) cflags = 0;
if (sys_node) if (sys_node)
{ {
/* although free_sys_node can handle other types, sys::close() is allowed to /* although free_sys_node can handle other types, sys::close() is allowed to
* close nodes of the SYS_NODE_DATA_FD type only */ * close nodes of the SYS_NODE_DATA_FD type only */
if (hawk_rtx_getnargs(rtx) >= 2 && (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 1), &cflags) <= -1 || cflags < 0)) cflags = 0;
if (cflags & CLOSE_KEEPFD) /* this flag applies to file descriptors only */ if (cflags & CLOSE_KEEPFD) /* this flag applies to file descriptors only */
{ {
sys_node->ctx.u.fd = -1; /* you may leak the original file descriptor. */ sys_node->ctx.u.fd = -1; /* you may leak the original file descriptor. */
} }
free_sys_node (rtx, sys_list, sys_node); free_sys_node (rtx, sys_list, sys_node);
rx = ERRNUM_TO_RC(HAWK_ENOERR);
}
else
{
rx = ERRNUM_TO_RC(HAWK_EINVAL);
/* error information set in get_sys_list_node_with_arg() */
} }
hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rx)); hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rx));
@ -403,7 +408,7 @@ static int fnc_openfd (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
/* wrap a raw system file descriptor into the internal management node */ /* wrap a raw system file descriptor into the internal management node */
sys_list_t* sys_list; sys_list_t* sys_list;
hawk_int_t rx = ERRNUM_TO_RC(HAWK_EOTHER); hawk_int_t rx;
hawk_int_t fd; hawk_int_t fd;
sys_list = rtx_to_sys_list(rtx, fi); sys_list = rtx_to_sys_list(rtx, fi);
@ -428,7 +433,7 @@ static int fnc_openfd (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
rx = set_error_on_sys_list(rtx, sys_list, HAWK_EINVAL, HAWK_T("invalid file descriptor %jd"), (hawk_intmax_t)fd); rx = set_error_on_sys_list(rtx, sys_list, HAWK_EINVAL, HAWK_T("invalid file descriptor %jd"), (hawk_intmax_t)fd);
} }
/*HAWK_ASSERT (HAWK_IN_QUICKINT_RANGE(rx));*/ HAWK_ASSERT (HAWK_IN_QUICKINT_RANGE(rx));
hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rx)); hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rx));
return 0; return 0;
} }
@ -438,16 +443,16 @@ static int fnc_read (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{ {
sys_list_t* sys_list; sys_list_t* sys_list;
sys_node_t* sys_node; sys_node_t* sys_node;
hawk_int_t rx = ERRNUM_TO_RC(HAWK_EOTHER); hawk_int_t rx;
hawk_int_t reqsize = 8192; hawk_int_t reqsize = 8192;
sys_list = rtx_to_sys_list(rtx, fi);
sys_node = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 0), SYS_NODE_DATA_FD, &rx);
if (sys_node)
{
if (hawk_rtx_getnargs(rtx) >= 3 && (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 2), &reqsize) <= -1 || reqsize <= 0)) reqsize = 8192; if (hawk_rtx_getnargs(rtx) >= 3 && (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 2), &reqsize) <= -1 || reqsize <= 0)) reqsize = 8192;
if (reqsize > HAWK_QUICKINT_MAX) reqsize = HAWK_QUICKINT_MAX; if (reqsize > HAWK_QUICKINT_MAX) reqsize = HAWK_QUICKINT_MAX;
sys_list = rtx_to_sys_list(rtx, fi);
sys_node = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 0), SYS_NODE_DATA_FD);
if (sys_node)
{
if (reqsize > sys_list->ctx.readbuf_capa) if (reqsize > sys_list->ctx.readbuf_capa)
{ {
hawk_bch_t* tmp = hawk_rtx_reallocmem(rtx, sys_list->ctx.readbuf, reqsize); hawk_bch_t* tmp = hawk_rtx_reallocmem(rtx, sys_list->ctx.readbuf, reqsize);
@ -472,18 +477,21 @@ static int fnc_read (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
int x; int x;
sv = hawk_rtx_makembsval(rtx, sys_list->ctx.readbuf, rx); sv = hawk_rtx_makembsval(rtx, sys_list->ctx.readbuf, rx);
if (!sv) return -1; if (!sv)
{
rx = copy_error_to_sys_list(rtx, sys_list);
goto done;
}
hawk_rtx_refupval (rtx, sv); hawk_rtx_refupval (rtx, sv);
x = hawk_rtx_setrefval(rtx, (hawk_val_ref_t*)hawk_rtx_getarg(rtx, 1), sv); x = hawk_rtx_setrefval(rtx, (hawk_val_ref_t*)hawk_rtx_getarg(rtx, 1), sv);
hawk_rtx_refdownval (rtx, sv); hawk_rtx_refdownval (rtx, sv);
if (x <= -1) return -1; if (x <= -1)
}
}
else
{ {
rx = ERRNUM_TO_RC(HAWK_EINVAL); rx = copy_error_to_sys_list(rtx, sys_list);
/* error information set in get_sys_list_node_with_arg() */ goto done;
}
}
} }
done: done:
@ -497,10 +505,10 @@ static int fnc_write (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{ {
sys_list_t* sys_list; sys_list_t* sys_list;
sys_node_t* sys_node; sys_node_t* sys_node;
hawk_int_t rx = ERRNUM_TO_RC(HAWK_EOTHER); hawk_int_t rx;
sys_list = rtx_to_sys_list(rtx, fi); sys_list = rtx_to_sys_list(rtx, fi);
sys_node = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 0), SYS_NODE_DATA_FD); sys_node = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 0), SYS_NODE_DATA_FD, &rx);
if (sys_node) if (sys_node)
{ {
hawk_bch_t* dptr; hawk_bch_t* dptr;
@ -520,11 +528,6 @@ static int fnc_write (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
rx = copy_error_to_sys_list(rtx, sys_list); rx = copy_error_to_sys_list(rtx, sys_list);
} }
} }
else
{
rx = ERRNUM_TO_RC(HAWK_EINVAL);
/* error information set in get_sys_list_node_with_arg() */
}
hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rx)); hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rx));
return 0; return 0;
@ -555,22 +558,22 @@ static int fnc_dup (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{ {
sys_list_t* sys_list; sys_list_t* sys_list;
sys_node_t* sys_node, * sys_node2 = HAWK_NULL; sys_node_t* sys_node, * sys_node2 = HAWK_NULL;
hawk_int_t rx = ERRNUM_TO_RC(HAWK_EOTHER); hawk_int_t rx;
hawk_int_t oflags = 0; hawk_int_t oflags = 0;
sys_list = rtx_to_sys_list(rtx, fi); sys_list = rtx_to_sys_list(rtx, fi);
sys_node = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 0), SYS_NODE_DATA_FD); sys_node = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 0), SYS_NODE_DATA_FD, &rx);
if (hawk_rtx_getnargs(rtx) >= 2)
{
sys_node2 = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 1), SYS_NODE_DATA_FD);
if (!sys_node2) goto fail_einval;
if (hawk_rtx_getnargs(rtx) >= 3 && (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 2), &oflags) <= -1 || oflags < 0)) oflags = 0;
}
if (sys_node) if (sys_node)
{ {
int fd; int fd;
if (hawk_rtx_getnargs(rtx) >= 2)
{
sys_node2 = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 1), SYS_NODE_DATA_FD, &rx);
if (!sys_node2) goto done;
if (hawk_rtx_getnargs(rtx) >= 3 && (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 2), &oflags) <= -1 || oflags < 0)) oflags = 0;
}
if (sys_node2) if (sys_node2)
{ {
#if defined(HAVE_DUP3) #if defined(HAVE_DUP3)
@ -628,13 +631,9 @@ static int fnc_dup (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
} }
} }
} }
else
{
fail_einval:
rx = ERRNUM_TO_RC(HAWK_EINVAL);
/* error information set in get_sys_list_node_with_arg() */
}
done:
HAWK_ASSERT (HAWK_IN_QUICKINT_RANGE(rx)); /* assume a file descriptor never gets larger than HAWK_QUICKINT_MAX */
hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rx)); hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rx));
return 0; return 0;
} }
@ -730,7 +729,7 @@ static int fnc_pipe (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
/* create low-level pipes */ /* create low-level pipes */
sys_list_t* sys_list; sys_list_t* sys_list;
hawk_int_t rx = ERRNUM_TO_RC(HAWK_EOTHER); hawk_int_t rx;
int fds[2]; int fds[2];
hawk_int_t flags = 0; hawk_int_t flags = 0;
@ -763,6 +762,7 @@ static int fnc_pipe (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
if (nflags > 0) if (nflags > 0)
{ {
/* don't care about failure */
fcntl (fds[0], F_SETFD, nflags); fcntl (fds[0], F_SETFD, nflags);
fcntl (fds[1], F_SETFD, nflags); fcntl (fds[1], F_SETFD, nflags);
} }
@ -776,13 +776,8 @@ static int fnc_pipe (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
int x; int x;
v = hawk_rtx_makeintval(rtx, node1->id); v = hawk_rtx_makeintval(rtx, node1->id);
if (!v) if (!v) goto fail;
{
fail:
free_sys_node (rtx, sys_list, node1);
free_sys_node (rtx, sys_list, node2);
return -1;
}
hawk_rtx_refupval (rtx, v); hawk_rtx_refupval (rtx, v);
x = hawk_rtx_setrefval(rtx, (hawk_val_ref_t*)hawk_rtx_getarg(rtx, 0), v); x = hawk_rtx_setrefval(rtx, (hawk_val_ref_t*)hawk_rtx_getarg(rtx, 0), v);
hawk_rtx_refdownval (rtx, v); hawk_rtx_refdownval (rtx, v);
@ -795,13 +790,18 @@ static int fnc_pipe (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
hawk_rtx_refdownval (rtx, v); hawk_rtx_refdownval (rtx, v);
if (x <= -1) goto fail; if (x <= -1) goto fail;
/* successful so far */
rx = ERRNUM_TO_RC(HAWK_ENOERR); rx = ERRNUM_TO_RC(HAWK_ENOERR);
} }
else else
{ {
fail:
rx = copy_error_to_sys_list(rtx, sys_list); rx = copy_error_to_sys_list(rtx, sys_list);
if (node2) free_sys_node (rtx, sys_list, node2); if (node2) free_sys_node (rtx, sys_list, node2);
else close(fds[1]);
if (node1) free_sys_node (rtx, sys_list, node1); if (node1) free_sys_node (rtx, sys_list, node1);
else close(fds[0]);
} }
} }
else else
@ -819,10 +819,10 @@ static int fnc_fchown (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{ {
sys_list_t* sys_list; sys_list_t* sys_list;
sys_node_t* sys_node; sys_node_t* sys_node;
hawk_int_t rx = ERRNUM_TO_RC(HAWK_EOTHER); hawk_int_t rx;
sys_list = rtx_to_sys_list(rtx, fi); sys_list = rtx_to_sys_list(rtx, fi);
sys_node = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 0), SYS_NODE_DATA_FD); sys_node = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 0), SYS_NODE_DATA_FD, &rx);
if (sys_node) if (sys_node)
{ {
hawk_int_t uid, gid; hawk_int_t uid, gid;
@ -834,15 +834,38 @@ static int fnc_fchown (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
} }
else else
{ {
rx = (fchown(sys_node->ctx.u.fd, uid, gid) == -1)? rx = fchown(sys_node->ctx.u.fd, uid, gid) <= -1?
set_error_on_sys_list_with_errno(rtx, sys_list, HAWK_NULL): set_error_on_sys_list_with_errno(rtx, sys_list, HAWK_NULL):
ERRNUM_TO_RC(HAWK_ENOERR); ERRNUM_TO_RC(HAWK_ENOERR);
} }
} }
hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rx));
return 0;
}
static int fnc_fchmod (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{
sys_list_t* sys_list;
sys_node_t* sys_node;
hawk_int_t rx;
sys_list = rtx_to_sys_list(rtx, fi);
sys_node = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 0), SYS_NODE_DATA_FD, &rx);
if (sys_node)
{
hawk_int_t mode;
if (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 1), &mode) <= -1)
{
rx = copy_error_to_sys_list(rtx, sys_list);
}
else else
{ {
rx = ERRNUM_TO_RC(HAWK_EINVAL); rx = fchmod(sys_node->ctx.u.fd, mode) <= -1?
/* error information set in get_sys_list_node_with_arg() */ set_error_on_sys_list_with_errno(rtx, sys_list, HAWK_NULL):
ERRNUM_TO_RC(HAWK_ENOERR);
}
} }
hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rx)); hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rx));
@ -926,21 +949,15 @@ static int fnc_closedir (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{ {
sys_list_t* sys_list; sys_list_t* sys_list;
sys_node_t* sys_node; sys_node_t* sys_node;
hawk_int_t rx = ERRNUM_TO_RC(HAWK_EOTHER); hawk_int_t rx = ERRNUM_TO_RC(HAWK_ENOERR);
sys_list = rtx_to_sys_list(rtx, fi); sys_list = rtx_to_sys_list(rtx, fi);
sys_node = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 0), SYS_NODE_DATA_DIR); sys_node = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 0), SYS_NODE_DATA_DIR, &rx);
if (sys_node) if (sys_node)
{ {
/* although free_sys_node() can handle other types, sys::closedir() is allowed to /* although free_sys_node() can handle other types, sys::closedir() is allowed to
* close nodes of the SYS_NODE_DATA_DIR type only */ * close nodes of the SYS_NODE_DATA_DIR type only */
free_sys_node (rtx, sys_list, sys_node); free_sys_node (rtx, sys_list, sys_node);
rx = ERRNUM_TO_RC(HAWK_ENOERR);
}
else
{
rx = ERRNUM_TO_RC(HAWK_EINVAL);
/* error information set in get_sys_list_node_with_arg() */
} }
hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rx)); hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rx));
@ -951,53 +968,36 @@ static int fnc_readdir (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{ {
sys_list_t* sys_list; sys_list_t* sys_list;
sys_node_t* sys_node; sys_node_t* sys_node;
hawk_int_t rx = ERRNUM_TO_RC(HAWK_EOTHER); hawk_int_t rx = 0; /* no more entry */
sys_list = rtx_to_sys_list(rtx, fi); sys_list = rtx_to_sys_list(rtx, fi);
sys_node = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 0), SYS_NODE_DATA_DIR); sys_node = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 0), SYS_NODE_DATA_DIR, &rx);
if (sys_node) if (sys_node)
{ {
int y; int y;
hawk_dir_ent_t ent; hawk_dir_ent_t ent;
hawk_val_t* tmp;
y = hawk_dir_read(sys_node->ctx.u.dir, &ent); rx = hawk_dir_read(sys_node->ctx.u.dir, &ent); /* assume -1 on error, 0 on no more entry, 1 when an entry is available */
if (y <= -1) if (rx <= -1)
{
goto fail;
}
else if (y == 0)
{
rx = 0; /* no more entry */
}
else
{
tmp = hawk_rtx_makestrvalwithoocstr(rtx, ent.name);
if (!tmp)
{ {
fail: fail:
rx = copy_error_to_sys_list(rtx, sys_list); rx = copy_error_to_sys_list(rtx, sys_list);
} }
else else if (rx > 0)
{ {
int n; hawk_val_t* tmp;
int x;
tmp = hawk_rtx_makestrvalwithoocstr(rtx, ent.name);
if (!tmp) goto fail;
hawk_rtx_refupval (rtx, tmp); hawk_rtx_refupval (rtx, tmp);
n = hawk_rtx_setrefval (rtx, (hawk_val_ref_t*)hawk_rtx_getarg(rtx, 1), tmp); x = hawk_rtx_setrefval (rtx, (hawk_val_ref_t*)hawk_rtx_getarg(rtx, 1), tmp);
hawk_rtx_refdownval (rtx, tmp); hawk_rtx_refdownval (rtx, tmp);
if (n <= -1) return -1; if (x <= -1) goto fail;
rx = 1; /* has entry */
} }
} }
}
else
{
rx = ERRNUM_TO_RC(HAWK_EINVAL);
/* error information set in get_sys_list_node_with_arg() */
}
/* the value in 'rx' never exceeds HAWK_QUICKINT_MAX as 'reqsize' has been limited to
* it before the call to 'read'. so it's safe not to check the result of hawk_rtx_makeintval() */
hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rx)); hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rx));
return 0; return 0;
} }
@ -1006,10 +1006,10 @@ static int fnc_resetdir (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{ {
sys_list_t* sys_list; sys_list_t* sys_list;
sys_node_t* sys_node; sys_node_t* sys_node;
hawk_int_t rx = ERRNUM_TO_RC(HAWK_EOTHER); hawk_int_t rx = ERRNUM_TO_RC(HAWK_ENOERR);
sys_list = rtx_to_sys_list(rtx, fi); sys_list = rtx_to_sys_list(rtx, fi);
sys_node = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 0), SYS_NODE_DATA_DIR); sys_node = get_sys_list_node_with_arg(rtx, sys_list, hawk_rtx_getarg(rtx, 0), SYS_NODE_DATA_DIR, &rx);
if (sys_node) if (sys_node)
{ {
@ -1021,7 +1021,6 @@ static int fnc_resetdir (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
if (path) if (path)
{ {
if (hawk_dir_reset(sys_node->ctx.u.dir, path) <= -1) goto fail; if (hawk_dir_reset(sys_node->ctx.u.dir, path) <= -1) goto fail;
rx = ERRNUM_TO_RC(HAWK_ENOERR); /* success */
hawk_rtx_freevaloocstr (rtx, a1, path); hawk_rtx_freevaloocstr (rtx, a1, path);
} }
else else
@ -1030,11 +1029,6 @@ static int fnc_resetdir (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
rx = copy_error_to_sys_list(rtx, sys_list); rx = copy_error_to_sys_list(rtx, sys_list);
} }
} }
else
{
rx = ERRNUM_TO_RC(HAWK_EINVAL);
/* error information set in get_sys_list_node_with_arg() */
}
/* no error check for hawk_rtx_makeintval() here since ret /* no error check for hawk_rtx_makeintval() here since ret
* is 0 or -1. it will never fail for those numbers */ * is 0 or -1. it will never fail for those numbers */
@ -1065,7 +1059,7 @@ static int fnc_fork (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
#endif #endif
retv = hawk_rtx_makeintval(rtx, rx); retv = hawk_rtx_makeintval(rtx, rx);
if (retv == HAWK_NULL) return -1; if (retv == HAWK_NULL) return -1; /* hard failure. unable to create a return value */
hawk_rtx_setretval (rtx, retv); hawk_rtx_setretval (rtx, retv);
return 0; return 0;
@ -1082,13 +1076,7 @@ static int fnc_wait (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
sys_list_t* sys_list = rtx_to_sys_list(rtx, fi); sys_list_t* sys_list = rtx_to_sys_list(rtx, fi);
nargs = hawk_rtx_getnargs(rtx); nargs = hawk_rtx_getnargs(rtx);
if (nargs >= 3 && hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 2), &opts) <= -1) if (nargs >= 3 && hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 2), &opts) <= -1) goto fail;
{
fail:
rx = copy_error_to_sys_list(rtx, sys_list);
goto done;
}
if (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 0), &pid) <= -1) goto fail; if (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 0), &pid) <= -1) goto fail;
#if defined(_WIN32) #if defined(_WIN32)
@ -1105,30 +1093,34 @@ static int fnc_wait (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
status = 0; status = 0;
#else #else
rx = waitpid(pid, &status, opts); rx = waitpid(pid, &status, opts);
if (rx <= -1) rx = set_error_on_sys_list_with_errno(rtx, sys_list, HAWK_NULL); if (rx <= -1)
#endif {
rx = set_error_on_sys_list_with_errno(rtx, sys_list, HAWK_NULL);
done: }
retv = hawk_rtx_makeintval(rtx, rx); else
if (!retv) return -1; {
if (nargs >= 2) if (nargs >= 2)
{ {
hawk_val_t* sv; hawk_val_t* sv;
int x; int x;
sv = hawk_rtx_makeintval(rtx, status); sv = hawk_rtx_makeintval(rtx, status);
if (!sv) return -1; if (!sv) goto fail;
hawk_rtx_refupval (rtx, sv); hawk_rtx_refupval (rtx, sv);
x = hawk_rtx_setrefval(rtx, (hawk_val_ref_t*)hawk_rtx_getarg(rtx, 1), sv); x = hawk_rtx_setrefval(rtx, (hawk_val_ref_t*)hawk_rtx_getarg(rtx, 1), sv);
hawk_rtx_refdownval (rtx, sv); hawk_rtx_refdownval (rtx, sv);
if (x <= -1) if (x <= -1)
{ {
hawk_rtx_freemem (rtx, retv); fail:
return -1; rx = copy_error_to_sys_list(rtx, sys_list);
} }
} }
}
#endif
retv = hawk_rtx_makeintval(rtx, rx);
if (!retv) return -1; /* hard failure. unable to make a return value */
hawk_rtx_setretval (rtx, retv); hawk_rtx_setretval (rtx, retv);
return 0; return 0;
@ -1137,21 +1129,23 @@ done:
static int fnc_wifexited (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi) static int fnc_wifexited (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{ {
hawk_int_t wstatus; hawk_int_t wstatus;
hawk_val_t* retv; int rv;
if (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 0), &wstatus) <= -1) return -1; rv = (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 0), &wstatus) <= -1)? 0: !!WIFEXITED(wstatus);
retv = hawk_rtx_makeintval(rtx, WIFEXITED(wstatus)); hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rv));
if (!retv) return -1;
hawk_rtx_setretval (rtx, retv);
return 0; return 0;
} }
static int fnc_wexitstatus (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi) static int fnc_wexitstatus (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{ {
hawk_int_t wstatus; hawk_int_t wstatus;
int rv;
hawk_val_t* retv; hawk_val_t* retv;
if (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 0), &wstatus) <= -1) return -1; rv = (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 0), &wstatus) <= -1)? -1: WEXITSTATUS(wstatus);
retv = hawk_rtx_makeintval(rtx, WEXITSTATUS(wstatus));
retv = hawk_rtx_makeintval(rtx, rv);
if (!retv) return -1; if (!retv) return -1;
hawk_rtx_setretval (rtx, retv); hawk_rtx_setretval (rtx, retv);
return 0; return 0;
} }
@ -1159,21 +1153,23 @@ static int fnc_wexitstatus (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
static int fnc_wifsignaled (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi) static int fnc_wifsignaled (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{ {
hawk_int_t wstatus; hawk_int_t wstatus;
hawk_val_t* retv; int rv;
if (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 0), &wstatus) <= -1) return -1; rv = (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 0), &wstatus) <= -1)? 0: !!WIFSIGNALED(wstatus);
retv = hawk_rtx_makeintval(rtx, WIFSIGNALED(wstatus)); hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rv));
if (!retv) return -1;
hawk_rtx_setretval (rtx, retv);
return 0; return 0;
} }
static int fnc_wtermsig (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi) static int fnc_wtermsig (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{ {
hawk_int_t wstatus; hawk_int_t wstatus;
int rv;
hawk_val_t* retv; hawk_val_t* retv;
if (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 0), &wstatus) <= -1) return -1; rv = (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 0), &wstatus) <= -1)? -1: WTERMSIG(wstatus);
retv = hawk_rtx_makeintval(rtx, WTERMSIG(wstatus));
retv = hawk_rtx_makeintval(rtx, rv);
if (!retv) return -1; if (!retv) return -1;
hawk_rtx_setretval (rtx, retv); hawk_rtx_setretval (rtx, retv);
return 0; return 0;
} }
@ -1181,11 +1177,9 @@ static int fnc_wtermsig (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
static int fnc_wcoredump (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi) static int fnc_wcoredump (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{ {
hawk_int_t wstatus; hawk_int_t wstatus;
hawk_val_t* retv; int rv;
if (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 0), &wstatus) <= -1) return -1; rv = hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 0), &wstatus) <= -1? 0: !!WCOREDUMP(wstatus);
retv = hawk_rtx_makeintval(rtx, WCOREDUMP(wstatus)); hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rv));
if (!retv) return -1;
hawk_rtx_setretval (rtx, retv);
return 0; return 0;
} }
@ -1980,12 +1974,12 @@ static int fnc_getifcfg (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
} }
tmp = hawk_rtx_makemapvalwithdata(rtx, md); tmp = hawk_rtx_makemapvalwithdata(rtx, md);
if (!tmp) return -1; /* hard failure */ if (!tmp) goto fail;
hawk_rtx_refupval (rtx, tmp); hawk_rtx_refupval (rtx, tmp);
x = hawk_rtx_setrefval(rtx, (hawk_val_ref_t*)hawk_rtx_getarg(rtx, 2), tmp); x = hawk_rtx_setrefval(rtx, (hawk_val_ref_t*)hawk_rtx_getarg(rtx, 2), tmp);
hawk_rtx_refdownval (rtx, tmp); hawk_rtx_refdownval (rtx, tmp);
if (x <= -1) return -1; /* hard failure */ if (x <= -1) goto fail;
rx = ERRNUM_TO_RC(HAWK_ENOERR); rx = ERRNUM_TO_RC(HAWK_ENOERR);
} }
@ -2003,101 +1997,184 @@ static int fnc_getifcfg (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
static int fnc_system (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi) static int fnc_system (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{ {
sys_list_t* sys_list;
hawk_val_t* v, * a0; hawk_val_t* v, * a0;
hawk_ooch_t* str; hawk_ooch_t* str;
hawk_oow_t len; hawk_oow_t len;
int n = 0; hawk_int_t rx;
a0 = hawk_rtx_getarg (rtx, 0); sys_list = rtx_to_sys_list(rtx, fi);
str = hawk_rtx_getvaloocstr (rtx, a0, &len);
if (str == HAWK_NULL) return -1;
/* the target name contains a null character. a0 = hawk_rtx_getarg(rtx, 0);
* make system return -1 */ str = hawk_rtx_getvaloocstr(rtx, a0, &len);
if (!str)
{
rx = copy_error_to_sys_list(rtx, sys_list);
goto done;
}
/* the target name contains a null character. make system return -1 */
if (hawk_find_oochar(str, len, '\0')) if (hawk_find_oochar(str, len, '\0'))
{ {
n = -1; rx = set_error_on_sys_list(rtx, sys_list, HAWK_EINVAL, HAWK_T("invalid command of length %zu containing '\\0'"), len);
goto skip_system; goto done;
} }
#if defined(_WIN32) #if defined(_WIN32)
n = _tsystem (str); rx = _tsystem(str);
if (rx <= -1) rx = set_error_on_sys_list_with_errno(rtx, sys_list, HAWK_NULL);
#elif defined(HAWK_OOCH_IS_BCH) #elif defined(HAWK_OOCH_IS_BCH)
n = system (str); rx = system(str);
if (rx <= -1) rx = set_error_on_sys_list_with_errno(rtx, sys_list, HAWK_NULL);
#else #else
{ {
hawk_bch_t* mbs; hawk_bch_t* mbs;
mbs = hawk_rtx_duputobcstr(rtx, str, HAWK_NULL); mbs = hawk_rtx_duputobcstr(rtx, str, HAWK_NULL);
if (mbs == HAWK_NULL) if (mbs)
{ {
n = -1; rx = system(mbs);
goto skip_system;
}
n = system (mbs);
hawk_rtx_freemem (rtx, mbs); hawk_rtx_freemem (rtx, mbs);
if (rx <= -1) rx = set_error_on_sys_list_with_errno(rtx, sys_list, HAWK_NULL);
}
else
{
rx = copy_error_to_sys_list(rtx, sys_list);
}
} }
#endif #endif
skip_system: done:
hawk_rtx_freevaloocstr (rtx, a0, str); if (str) hawk_rtx_freevaloocstr (rtx, a0, str);
v = hawk_rtx_makeintval(rtx, (hawk_int_t)n);
if (v == HAWK_NULL) return -1;
HAWK_ASSERT (HAWK_IN_QUICKINT_RANGE(rx));
hawk_rtx_setretval (rtx, v); hawk_rtx_setretval (rtx, v);
return 0; return 0;
} }
/* ------------------------------------------------------------ */ /* ------------------------------------------------------------ */
static int fnc_chmod (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
static int fnc_chroot (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{ {
sys_list_t* sys_list;
hawk_val_t* v, * a0; hawk_val_t* v, * a0;
hawk_ooch_t* str; hawk_ooch_t* str;
hawk_oow_t len; hawk_oow_t len;
int n = 0; hawk_int_t rx;
hawk_int_t mode;
sys_list = rtx_to_sys_list(rtx, fi);
a0 = hawk_rtx_getarg(rtx, 0); a0 = hawk_rtx_getarg(rtx, 0);
str = hawk_rtx_getvaloocstr(rtx, a0, &len); str = hawk_rtx_getvaloocstr(rtx, a0, &len);
if (!str) return -1; if (!str)
{
rx = copy_error_to_sys_list(rtx, sys_list);
goto done;
}
/* the target name contains a null character. /* the target name contains a null character. make system return -1 */
* make system return -1 */
if (hawk_find_oochar(str, len, '\0')) if (hawk_find_oochar(str, len, '\0'))
{ {
n = -1; rx = set_error_on_sys_list(rtx, sys_list, HAWK_EINVAL, HAWK_T("invalid path of length %zu containing '\\0'"), len);
goto skip_mkdir; goto done;
}
#if defined(_WIN32)
/* TOOD: implement this*/
rx = set_error_on_sys_list(rtx, sys_list, HAWK_ENOIMPL, HAWK_NULL);
#elif defined(__OS2__)
/* TOOD: implement this*/
rx = set_error_on_sys_list(rtx, sys_list, HAWK_ENOIMPL, HAWK_NULL);
#elif defined(__DOS__)
/* TOOD: implement this*/
rx = set_error_on_sys_list(rtx, sys_list, HAWK_ENOIMPL, HAWK_NULL);
#elif defined(HAWK_OOCH_IS_BCH)
rx = chroot(str, mode);
if (rx <= -1) rx = set_error_on_sys_list_with_errno(rtx, sys_list, HAWK_NULL);
#else
{
hawk_bch_t* mbs;
mbs = hawk_rtx_duputobcstr(rtx, str, HAWK_NULL);
if (mbs)
{
rx = chroot(mbs);
hawk_rtx_freemem (rtx, mbs);
if (rx <= -1) rx = set_error_on_sys_list_with_errno(rtx, sys_list, HAWK_NULL);
}
else
{
rx = copy_error_to_sys_list(rtx, sys_list);
}
}
#endif
done:
if (str) hawk_rtx_freevaloocstr (rtx, a0, str);
HAWK_ASSERT (HAWK_IN_QUICKINT_RANGE(rx));
hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rx));
return 0;
}
/* ------------------------------------------------------------ */
static int fnc_chmod (hawk_rtx_t* rtx, const hawk_fnc_info_t* fi)
{
sys_list_t* sys_list;
hawk_val_t* v, * a0;
hawk_ooch_t* str;
hawk_oow_t len;
hawk_int_t rx;
hawk_int_t mode;
sys_list = rtx_to_sys_list(rtx, fi);
a0 = hawk_rtx_getarg(rtx, 0);
str = hawk_rtx_getvaloocstr(rtx, a0, &len);
if (!str)
{
rx = copy_error_to_sys_list(rtx, sys_list);
goto done;
}
/* the target name contains a null character. make system return -1 */
if (hawk_find_oochar(str, len, '\0'))
{
rx = set_error_on_sys_list(rtx, sys_list, HAWK_EINVAL, HAWK_T("invalid path of length %zu containing '\\0'"), len);
goto done;
} }
if (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 1), &mode) <= -1 || mode < 0) mode = DEFAULT_MODE; if (hawk_rtx_valtoint(rtx, hawk_rtx_getarg(rtx, 1), &mode) <= -1 || mode < 0) mode = DEFAULT_MODE;
#if defined(_WIN32) #if defined(_WIN32)
n = _tchmod(str, mode); rx = _tchmod(str, mode);
if (rx <= -1) rx = set_error_on_sys_list_with_errno(rtx, sys_list, HAWK_NULL);
#elif defined(HAWK_OOCH_IS_BCH) #elif defined(HAWK_OOCH_IS_BCH)
n = chmod(str, mode); rx = chmod(str, mode);
if (rx <= -1) rx = set_error_on_sys_list_with_errno(rtx, sys_list, HAWK_NULL);
#else #else
{ {
hawk_bch_t* mbs; hawk_bch_t* mbs;
mbs = hawk_rtx_duputobcstr(rtx, str, HAWK_NULL); mbs = hawk_rtx_duputobcstr(rtx, str, HAWK_NULL);
if (mbs == HAWK_NULL) if (mbs)
{ {
n = -1; rx = chmod(mbs, mode);
goto skip_mkdir;
}
n = chmod(mbs, mode);
hawk_rtx_freemem (rtx, mbs); hawk_rtx_freemem (rtx, mbs);
if (rx <= -1) rx = set_error_on_sys_list_with_errno(rtx, sys_list, HAWK_NULL);
}
else
{
rx = copy_error_to_sys_list(rtx, sys_list);
}
} }
#endif #endif
skip_mkdir: done:
hawk_rtx_freevaloocstr (rtx, a0, str); if (str) hawk_rtx_freevaloocstr (rtx, a0, str);
v = hawk_rtx_makeintval(rtx, (hawk_int_t)n); HAWK_ASSERT (HAWK_IN_QUICKINT_RANGE(rx));
if (v == HAWK_NULL) return -1; hawk_rtx_setretval (rtx, hawk_rtx_makeintval(rtx, rx));
hawk_rtx_setretval (rtx, v);
return 0; return 0;
} }
@ -2580,11 +2657,13 @@ static fnctab_t fnctab[] =
{ HAWK_T("WIFSIGNALED"), { { 1, 1, HAWK_NULL }, fnc_wifsignaled, 0 } }, { HAWK_T("WIFSIGNALED"), { { 1, 1, HAWK_NULL }, fnc_wifsignaled, 0 } },
{ HAWK_T("WTERMSIG"), { { 1, 1, HAWK_NULL }, fnc_wtermsig, 0 } }, { HAWK_T("WTERMSIG"), { { 1, 1, HAWK_NULL }, fnc_wtermsig, 0 } },
{ HAWK_T("chmod"), { { 2, 2, HAWK_NULL }, fnc_chmod, 0 } }, { HAWK_T("chmod"), { { 2, 2, HAWK_NULL }, fnc_chmod, 0 } },
{ HAWK_T("chroot"), { { 2, 2, HAWK_NULL }, fnc_chroot, 0 } },
{ HAWK_T("close"), { { 1, 2, HAWK_NULL }, fnc_close, 0 } }, { HAWK_T("close"), { { 1, 2, HAWK_NULL }, fnc_close, 0 } },
{ HAWK_T("closedir"), { { 1, 1, HAWK_NULL }, fnc_closedir, 0 } }, { HAWK_T("closedir"), { { 1, 1, HAWK_NULL }, fnc_closedir, 0 } },
{ HAWK_T("closelog"), { { 0, 0, HAWK_NULL }, fnc_closelog, 0 } }, { HAWK_T("closelog"), { { 0, 0, HAWK_NULL }, fnc_closelog, 0 } },
{ HAWK_T("dup"), { { 1, 3, HAWK_NULL }, fnc_dup, 0 } }, { HAWK_T("dup"), { { 1, 3, HAWK_NULL }, fnc_dup, 0 } },
{ HAWK_T("errmsg"), { { 0, 0, HAWK_NULL }, fnc_errmsg, 0 } }, { HAWK_T("errmsg"), { { 0, 0, HAWK_NULL }, fnc_errmsg, 0 } },
{ HAWK_T("fchmod"), { { 2, 2, HAWK_NULL }, fnc_fchmod, 0 } },
{ HAWK_T("fchown"), { { 3, 3, HAWK_NULL }, fnc_fchown, 0 } }, { HAWK_T("fchown"), { { 3, 3, HAWK_NULL }, fnc_fchown, 0 } },
{ HAWK_T("fork"), { { 0, 0, HAWK_NULL }, fnc_fork, 0 } }, { HAWK_T("fork"), { { 0, 0, HAWK_NULL }, fnc_fork, 0 } },
{ HAWK_T("getegid"), { { 0, 0, HAWK_NULL }, fnc_getegid, 0 } }, { HAWK_T("getegid"), { { 0, 0, HAWK_NULL }, fnc_getegid, 0 } },