merge mksh-os2 by KO Myung-Hun <komh@chollian.net> from https://github.com/komh/mksh-os2

This commit is contained in:
tg 2017-04-02 15:00:45 +00:00
commit 718d397fff
10 changed files with 708 additions and 23 deletions

View File

@ -1,5 +1,5 @@
#!/bin/sh
srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.711 2017/04/02 14:14:03 tg Exp $'
srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.712 2017/04/02 15:00:39 tg Exp $'
#-
# Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
# 2011, 2012, 2013, 2014, 2015, 2016, 2017
@ -862,11 +862,11 @@ OpenBSD)
OS/2)
HAVE_TERMIOS_H=0
HAVE_MKNOD=0 # setmode() incompatible
oswarn="; it is currently being ported, get it from"
oswarn="$oswarn${nl}https://github.com/komh/mksh-os2 in the meanwhile"
oswarn="; it is being ported"
check_categories="$check_categories nosymlink"
: "${CC=gcc}"
: "${SIZE=: size}"
SRCS="$SRCS os2.c"
add_cppflags -DMKSH_UNEMPLOYED
add_cppflags -DMKSH_NOPROSPECTOFWORK
add_cppflags -DMKSH_NO_LIMITS

6
edit.c
View File

@ -28,7 +28,7 @@
#ifndef MKSH_NO_CMDLINE_EDITING
__RCSID("$MirOS: src/bin/mksh/edit.c,v 1.313 2017/03/11 22:49:54 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/edit.c,v 1.314 2017/04/02 15:00:40 tg Exp $");
/*
* in later versions we might use libtermcap for this, but since external
@ -145,6 +145,9 @@ x_read(char *buf)
static int
x_getc(void)
{
#ifdef __OS2__
return (_read_kbd(0, 1, 0));
#else
char c;
ssize_t n;
@ -166,6 +169,7 @@ x_getc(void)
x_mode(true);
}
return ((n == 1) ? (int)(unsigned char)c : -1);
#endif
}
static void

24
eval.c
View File

@ -23,7 +23,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/eval.c,v 1.199 2017/03/26 00:10:23 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/eval.c,v 1.200 2017/04/02 15:00:41 tg Exp $");
/*
* string expansion
@ -879,10 +879,30 @@ expand(
c = '\n';
--newlines;
} else {
while ((c = shf_getc(x.u.shf)) == 0 || c == '\n')
while ((c = shf_getc(x.u.shf)) == 0 ||
#ifdef MKSH_WITH_TEXTMODE
c == '\r' ||
#endif
c == '\n') {
#ifdef MKSH_WITH_TEXTMODE
if (c == '\r') {
c = shf_getc(x.u.shf);
switch (c) {
case '\n':
break;
default:
shf_ungetc(c, x.u.shf);
/* FALLTHROUGH */
case -1:
c = '\r';
break;
}
}
#endif
if (c == '\n')
/* save newlines */
newlines++;
}
if (newlines && c != -1) {
shf_ungetc(c, x.u.shf);
c = '\n';

44
exec.c
View File

@ -23,7 +23,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/exec.c,v 1.192 2017/04/02 13:08:06 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/exec.c,v 1.193 2017/04/02 15:00:42 tg Exp $");
#ifndef MKSH_DEFAULT_EXECSHELL
#define MKSH_DEFAULT_EXECSHELL MKSH_UNIXROOT "/bin/sh"
@ -889,6 +889,9 @@ scriptexec(struct op *tp, const char **ap)
unsigned short m;
ssize_t n;
#if defined(__OS2__) && defined(MKSH_WITH_TEXTMODE)
setmode(fd, O_TEXT);
#endif
/* read first couple of octets from file */
n = read(fd, buf, sizeof(buf) - 1);
close(fd);
@ -944,6 +947,17 @@ scriptexec(struct op *tp, const char **ap)
if (*cp)
*tp->args-- = (char *)cp;
}
#ifdef __OS2__
/*
* Search shell/interpreter name without directory in PATH
* if specified path does not exist
*/
if (mksh_vdirsep(sh) && !search_path(sh, path, X_OK, NULL)) {
cp = search_path(_getname(sh), path, X_OK, NULL);
if (cp)
sh = cp;
}
#endif
goto nomagic;
noshebang:
m = buf[0] << 8 | buf[1];
@ -964,6 +978,19 @@ scriptexec(struct op *tp, const char **ap)
buf[4] == 'Z') || (m == /* 7zip */ 0x377A) ||
(m == /* gzip */ 0x1F8B) || (m == /* .Z */ 0x1F9D))
errorf("%s: not executable: magic %04X", tp->str, m);
#ifdef __OS2__
cp = _getext(tp->str);
if (cp && (!stricmp(cp, ".cmd") || !stricmp(cp, ".bat"))) {
/* execute .cmd and .bat with OS2_SHELL, usually CMD.EXE */
sh = getenv("OS2_SHELL");
*tp->args-- = "/c";
/* convert slahes to backslashes */
for (cp = tp->str; *cp; cp++) {
if (*cp == '/')
*cp = '\\';
}
}
#endif
nomagic:
;
}
@ -1267,6 +1294,13 @@ search_access(const char *fn, int mode)
return (0);
}
#ifdef __OS2__
/* check if path is something we want to find, adding executable extensions */
#define search_access(fn, mode) access_ex((search_access), (fn), (mode))
#else
#define search_access(fn, mode) (search_access)((fn), (mode))
#endif
/*
* search for command with PATH
*/
@ -1288,7 +1322,11 @@ search_path(const char *name, const char *lpath,
search_path_ok:
if (errnop)
*errnop = 0;
#ifndef __OS2__
return (name);
#else
return (real_exec_name(name));
#endif
}
goto search_path_err;
}
@ -1305,6 +1343,10 @@ search_path(const char *name, const char *lpath,
XcheckN(xs, xp, p - sp);
memcpy(xp, sp, p - sp);
xp += p - sp;
#ifdef __OS2__
if (xp > Xstring(xs, xp) && mksh_cdirsep(xp[-1]))
xp--;
#endif
*xp++ = '/';
}
sp = p;

6
expr.c
View File

@ -23,7 +23,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/expr.c,v 1.91 2017/03/26 00:10:23 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/expr.c,v 1.92 2017/04/02 15:00:42 tg Exp $");
#define EXPRTOK_DEFNS
#include "exprtok.h"
@ -857,6 +857,9 @@ utf_wctomb(char *dst, unsigned int wc)
int
ksh_access(const char *fn, int mode)
{
#ifdef __OS2__
return (access_ex(access, fn, mode));
#else
int rv;
struct stat sb;
@ -866,6 +869,7 @@ ksh_access(const char *fn, int mode)
rv = -1;
return (rv);
#endif
}
#ifndef MIRBSD_BOOTFLOPPY

35
funcs.c
View File

@ -38,7 +38,7 @@
#endif
#endif
__RCSID("$MirOS: src/bin/mksh/funcs.c,v 1.331 2017/03/22 00:20:41 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/funcs.c,v 1.332 2017/04/02 15:00:42 tg Exp $");
#if HAVE_KILLPG
/*
@ -1968,6 +1968,10 @@ c_read(const char **wp)
#define c_read_opts "Aad:N:n:prst:u,"
#else
#define c_read_opts "Aad:N:n:prsu,"
#endif
#if defined(__OS2__) && defined(MKSH_WITH_TEXTMODE)
int saved_mode;
int saved_errno;
#endif
while ((c = ksh_getopt(wp, &builtin_opt, c_read_opts)) != -1)
@ -2097,7 +2101,15 @@ c_read(const char **wp)
}
#endif
#if defined(__OS2__) && defined(MKSH_WITH_TEXTMODE)
saved_mode = setmode(fd, O_TEXT);
#endif
if ((bytesread = blocking_read(fd, xp, bytesleft)) == (size_t)-1) {
#if defined(__OS2__) && defined(MKSH_WITH_TEXTMODE)
saved_errno = errno;
setmode(fd, saved_mode);
errno = saved_errno;
#endif
if (errno == EINTR) {
/* check whether the signal would normally kill */
if (!fatal_trap_check()) {
@ -2112,6 +2124,9 @@ c_read(const char **wp)
rv = 2;
goto c_read_out;
}
#if defined(__OS2__) && defined(MKSH_WITH_TEXTMODE)
setmode(fd, saved_mode);
#endif
switch (readmode) {
case READALL:
@ -2828,7 +2843,7 @@ c_exec(const char **wp MKSH_A_UNUSED)
return (0);
}
#if HAVE_MKNOD
#if HAVE_MKNOD && !defined(__OS2__)
int
c_mknod(const char **wp)
{
@ -3085,6 +3100,14 @@ test_isop(Test_meta meta, const char *s)
return (TO_NONOP);
}
#ifdef __OS2__
#define test_access(name, mode) access_ex(access, (name), (mode))
#define test_stat(name, buffer) stat_ex((name), (buffer))
#else
#define test_access(name, mode) access((name), (mode))
#define test_stat(name, buffer) stat((name), (buffer))
#endif
int
test_eval(Test_env *te, Test_op op, const char *opnd1, const char *opnd2,
bool do_eval)
@ -3150,12 +3173,12 @@ test_eval(Test_env *te, Test_op op, const char *opnd1, const char *opnd2,
/* -r */
case TO_FILRD:
/* LINTED use of access */
return (access(opnd1, R_OK) == 0);
return (test_access(opnd1, R_OK) == 0);
/* -w */
case TO_FILWR:
/* LINTED use of access */
return (access(opnd1, W_OK) == 0);
return (test_access(opnd1, W_OK) == 0);
/* -x */
case TO_FILEX:
@ -3165,11 +3188,11 @@ test_eval(Test_env *te, Test_op op, const char *opnd1, const char *opnd2,
case TO_FILAXST:
/* -e */
case TO_FILEXST:
return (stat(opnd1, &b1) == 0);
return (test_stat(opnd1, &b1) == 0);
/* -r */
case TO_FILREG:
return (stat(opnd1, &b1) == 0 && S_ISREG(b1.st_mode));
return (test_stat(opnd1, &b1) == 0 && S_ISREG(b1.st_mode));
/* -d */
case TO_FILID:

12
main.c
View File

@ -34,7 +34,7 @@
#include <locale.h>
#endif
__RCSID("$MirOS: src/bin/mksh/main.c,v 1.328 2017/03/19 22:31:27 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/main.c,v 1.329 2017/04/02 15:00:43 tg Exp $");
extern char **environ;
@ -195,6 +195,8 @@ main_init(int argc, const char *argv[], Source **sp, struct block **lp)
for (i = 0; i < 3; ++i)
if (!isatty(i))
setmode(i, O_BINARY);
os2_init(&argc, &argv);
#endif
/* do things like getpgrp() et al. */
@ -467,7 +469,9 @@ main_init(int argc, const char *argv[], Source **sp, struct block **lp)
* to search for it. This changes the behaviour of a
* simple "mksh foo", but can't be helped.
*/
s->file = search_path(argv[argi++], path, X_OK, NULL);
s->file = argv[argi++];
if (search_access(s->file, X_OK) != 0)
s->file = search_path(s->file, path, X_OK, NULL);
if (!s->file || !*s->file)
s->file = argv[argi - 1];
#else
@ -1461,6 +1465,10 @@ openpipe(int *pv)
pv[1] = savefd(lpv[1]);
if (pv[1] != lpv[1])
close(lpv[1]);
#ifdef __OS2__
setmode(pv[0], O_BINARY);
setmode(pv[1], O_BINARY);
#endif
}
void

557
os2.c Normal file
View File

@ -0,0 +1,557 @@
/*-
* Copyright (c) 2015
* KO Myung-Hun <komh@chollian.net>
*
* Provided that these terms and disclaimer and all copyright notices
* are retained or reproduced in an accompanying document, permission
* is granted to deal in this work without restriction, including un-
* limited rights to use, publicly perform, distribute, sell, modify,
* merge, give away, or sublicence.
*
* This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
* the utmost extent permitted by applicable law, neither express nor
* implied; without malicious intent or gross negligence. In no event
* may a licensor, author or contributor be held liable for indirect,
* direct, other damage, loss, or other issues arising in any way out
* of dealing in the work, even if advised of the possibility of such
* damage or existence of a defect, except proven that it results out
* of said person's immediate fault when using the work as intended.
*/
#define INCL_DOS
#include <os2.h>
#include "sh.h"
#include <klibc/startup.h>
#include <io.h>
#include <unistd.h>
#include <process.h>
__RCSID("$MirOS: src/bin/mksh/os2.c,v 1.1 2017/04/02 15:00:44 tg Exp $");
static char *remove_trailing_dots(char *);
static int access_stat_ex(int (*)(), const char *, void *);
static int test_exec_exist(const char *, char *);
static void response(int *, const char ***);
static char *make_response_file(char * const *);
static void env_slashify(void);
static void add_temp(const char *);
static void cleanup_temps(void);
static void cleanup(void);
#define RPUT(x) do { \
if (new_argc >= new_alloc) { \
new_alloc += 20; \
if (!(new_argv = realloc(new_argv, \
new_alloc * sizeof(char *)))) \
goto exit_out_of_memory; \
} \
new_argv[new_argc++] = (x); \
} while (/* CONSTCOND */ 0)
#define KLIBC_ARG_RESPONSE_EXCLUDE \
(__KLIBC_ARG_DQUOTE | __KLIBC_ARG_WILDCARD | __KLIBC_ARG_SHELL)
static void
response(int *argcp, const char ***argvp)
{
int i, old_argc, new_argc, new_alloc = 0;
const char **old_argv, **new_argv;
char *line, *l, *p;
FILE *f;
old_argc = *argcp;
old_argv = *argvp;
for (i = 1; i < old_argc; ++i)
if (old_argv[i] &&
!(old_argv[i][-1] & KLIBC_ARG_RESPONSE_EXCLUDE) &&
old_argv[i][0] == '@')
break;
if (i >= old_argc)
/* do nothing */
return;
new_argv = NULL;
new_argc = 0;
for (i = 0; i < old_argc; ++i) {
if (i == 0 || !old_argv[i] ||
(old_argv[i][-1] & KLIBC_ARG_RESPONSE_EXCLUDE) ||
old_argv[i][0] != '@' ||
!(f = fopen(old_argv[i] + 1, "rt")))
RPUT(old_argv[i]);
else {
long filesize;
fseek(f, 0, SEEK_END);
filesize = ftell(f);
fseek(f, 0, SEEK_SET);
line = malloc(filesize + /* type */ 1 + /* NUL */ 1);
if (!line) {
exit_out_of_memory:
fputs("Out of memory while reading response file\n", stderr);
exit(255);
}
line[0] = __KLIBC_ARG_NONZERO | __KLIBC_ARG_RESPONSE;
l = line + 1;
while (fgets(l, (filesize + 1) - (l - (line + 1)), f)) {
p = strchr(l, '\n');
if (p) {
/*
* if a line ends with a backslash,
* concatenate with the next line
*/
if (p > l && p[-1] == '\\') {
char *p1;
int count = 0;
for (p1 = p - 1; p1 >= l &&
*p1 == '\\'; p1--)
count++;
if (count & 1) {
l = p + 1;
continue;
}
}
*p = 0;
}
p = strdup(line);
if (!p)
goto exit_out_of_memory;
RPUT(p + 1);
l = line + 1;
}
free(line);
if (ferror(f)) {
fputs("Cannot read response file\n", stderr);
exit(255);
}
fclose(f);
}
}
RPUT(NULL);
--new_argc;
*argcp = new_argc;
*argvp = new_argv;
}
static void
init_extlibpath(void)
{
const char *vars[] = {
"BEGINLIBPATH",
"ENDLIBPATH",
"LIBPATHSTRICT",
NULL
};
char val[512];
int flag;
for (flag = 0; vars[flag]; flag++) {
DosQueryExtLIBPATH(val, flag + 1);
if (val[0])
setenv(vars[flag], val, 1);
}
}
/*
* Convert backslashes of environmental variables to forward slahes.
* A backslash may be used as an escaped character when doing 'echo'.
* This leads to an unexpected behavior.
*/
static void
env_slashify(void)
{
/*
* PATH and TMPDIR are used by OS/2 as well. That is, they may
* have backslashes as a directory separator.
* BEGINLIBPATH and ENDLIBPATH are special variables on OS/2.
*/
const char *var_list[] = {
"PATH",
"TMPDIR",
"BEGINLIBPATH",
"ENDLIBPATH",
NULL
};
const char **var;
char *value;
for (var = var_list; *var; var++) {
value = getenv(*var);
if (value)
_fnslashify(value);
}
}
void
os2_init(int *argcp, const char ***argvp)
{
response(argcp, argvp);
init_extlibpath();
env_slashify();
if (!isatty(STDIN_FILENO))
setmode(STDIN_FILENO, O_BINARY);
if (!isatty(STDOUT_FILENO))
setmode(STDOUT_FILENO, O_BINARY);
if (!isatty(STDERR_FILENO))
setmode(STDERR_FILENO, O_BINARY);
atexit(cleanup);
}
void
setextlibpath(const char *name, const char *val)
{
int flag;
char *p, *cp;
if (!strcmp(name, "BEGINLIBPATH"))
flag = BEGIN_LIBPATH;
else if (!strcmp(name, "ENDLIBPATH"))
flag = END_LIBPATH;
else if (!strcmp(name, "LIBPATHSTRICT"))
flag = LIBPATHSTRICT;
else
return;
/* convert slashes to backslashes */
strdupx(cp, val, ATEMP);
for (p = cp; *p; p++) {
if (*p == '/')
*p = '\\';
}
DosSetExtLIBPATH(cp, flag);
afree(cp, ATEMP);
}
/* remove trailing dots */
static char *
remove_trailing_dots(char *name)
{
char *p;
for (p = name + strlen(name); --p > name && *p == '.'; )
/* nothing */;
if (*p != '.' && *p != '/' && *p != '\\' && *p != ':')
p[1] = '\0';
return (name);
}
#define REMOVE_TRAILING_DOTS(name) \
remove_trailing_dots(memcpy(alloca(strlen(name) + 1), name, strlen(name) + 1))
/* alias of stat() */
extern int _std_stat(const char *, struct stat *);
/* replacement for stat() of kLIBC which fails if there are trailing dots */
int
stat(const char *name, struct stat *buffer)
{
return (_std_stat(REMOVE_TRAILING_DOTS(name), buffer));
}
/* alias of access() */
extern int _std_access(const char *, int);
/* replacement for access() of kLIBC which fails if there are trailing dots */
int
access(const char *name, int mode)
{
/*
* On OS/2 kLIBC, X_OK is set only for executable files.
* This prevents scripts from being executed.
*/
if (mode & X_OK)
mode = (mode & ~X_OK) | R_OK;
return (_std_access(REMOVE_TRAILING_DOTS(name), mode));
}
#define MAX_X_SUFFIX_LEN 4
static const char *x_suffix_list[] =
{ "", ".ksh", ".exe", ".sh", ".cmd", ".com", ".bat", NULL };
/* call fn() by appending executable extensions */
static int
access_stat_ex(int (*fn)(), const char *name, void *arg)
{
char *x_name;
const char **x_suffix;
int rc = -1;
size_t x_namelen = strlen(name) + MAX_X_SUFFIX_LEN + 1;
/* otherwise, try to append executable suffixes */
x_name = alloc(x_namelen, ATEMP);
for (x_suffix = x_suffix_list; rc && *x_suffix; x_suffix++) {
strlcpy(x_name, name, x_namelen);
strlcat(x_name, *x_suffix, x_namelen);
rc = fn(x_name, arg);
}
afree(x_name, ATEMP);
return (rc);
}
/* access()/search_access() version */
int
access_ex(int (*fn)(const char *, int), const char *name, int mode)
{
/*XXX this smells fishy --mirabilos */
return (access_stat_ex(fn, name, (void *)mode));
}
/* stat() version */
int
stat_ex(const char *name, struct stat *buffer)
{
return (access_stat_ex(stat, name, buffer));
}
static int
test_exec_exist(const char *name, char *real_name)
{
struct stat sb;
if (stat(name, &sb) < 0 || !S_ISREG(sb.st_mode))
return (-1);
/* safe due to calculations in real_exec_name() */
memcpy(real_name, name, strlen(name) + 1);
return (0);
}
const char *
real_exec_name(const char *name)
{
char x_name[strlen(name) + MAX_X_SUFFIX_LEN + 1];
const char *real_name = name;
if (access_stat_ex(test_exec_exist, real_name, x_name) != -1)
/*XXX memory leak */
strdupx(real_name, x_name, ATEMP);
return (real_name);
}
/* OS/2 can process a command line up to 32 KiB */
#define MAX_CMD_LINE_LEN 32768
/* make a response file to pass a very long command line */
static char *
make_response_file(char * const *argv)
{
char rsp_name_arg[] = "@mksh-rsp-XXXXXX";
char *rsp_name = &rsp_name_arg[1];
int arg_len = 0;
int i;
for (i = 0; argv[i]; i++)
arg_len += strlen(argv[i]) + 1;
/*
* If a length of command line is longer than MAX_CMD_LINE_LEN, then
* use a response file. OS/2 cannot process a command line longer
* than 32K. Of course, a response file cannot be recognised by a
* normal OS/2 program, that is, neither non-EMX or non-kLIBC. But
* it cannot accept a command line longer than 32K in itself. So
* using a response file in this case, is an acceptable solution.
*/
if (arg_len > MAX_CMD_LINE_LEN) {
int fd;
char *result;
if ((fd = mkstemp(rsp_name)) == -1)
return (NULL);
/* write all the arguments except a 0th program name */
for (i = 1; argv[i]; i++) {
write(fd, argv[i], strlen(argv[i]));
write(fd, "\n", 1);
}
close(fd);
add_temp(rsp_name);
strdupx(result, rsp_name_arg, ATEMP);
return (result);
}
return (NULL);
}
/* alias of execve() */
extern int _std_execve(const char *, char * const *, char * const *);
/* replacement for execve() of kLIBC */
int
execve(const char *name, char * const *argv, char * const *envp)
{
const char *exec_name;
FILE *fp;
char sign[2];
char *rsp_argv[3];
char *rsp_name_arg;
int pid;
int status;
int fd;
int rc;
/*
* #! /bin/sh : append .exe
* extproc sh : search sh.exe in PATH
*/
exec_name = search_path(name, path, X_OK, NULL);
if (!exec_name) {
errno = ENOENT;
return (-1);
}
/*-
* kLIBC execve() has problems when executing scripts.
* 1. it fails to execute a script if a directory whose name
* is same as an interpreter exists in a current directory.
* 2. it fails to execute a script not starting with sharpbang.
* 3. it fails to execute a batch file if COMSPEC is set to a shell
* incompatible with cmd.exe, such as /bin/sh.
* And ksh process scripts more well, so let ksh process scripts.
*/
errno = 0;
if (!(fp = fopen(exec_name, "rb")))
errno = ENOEXEC;
if (!errno && fread(sign, 1, sizeof(sign), fp) != sizeof(sign))
errno = ENOEXEC;
if (fp && fclose(fp))
errno = ENOEXEC;
if (!errno &&
!((sign[0] == 'M' && sign[1] == 'Z') ||
(sign[0] == 'N' && sign[1] == 'E') ||
(sign[0] == 'L' && sign[1] == 'X')))
errno = ENOEXEC;
if (errno == ENOEXEC)
return (-1);
rsp_name_arg = make_response_file(argv);
if (rsp_name_arg) {
rsp_argv[0] = argv[0];
rsp_argv[1] = rsp_name_arg;
rsp_argv[2] = NULL;
argv = rsp_argv;
}
pid = spawnve(P_NOWAIT, exec_name, argv, envp);
afree(rsp_name_arg, ATEMP);
if (pid == -1) {
cleanup_temps();
return (-1);
}
/* close all opened handles */
for (fd = 0; fd < NUFILE; fd++) {
if (fcntl(fd, F_GETFD) == -1)
continue;
close(fd);
}
while ((rc = waitpid(pid, &status, 0)) < 0 && errno == EINTR)
/* nothing */;
cleanup_temps();
/* Is this possible? And is this right? */
if (rc == -1)
return (-1);
if (WIFSIGNALED(status))
_exit(ksh_sigmask(WTERMSIG(status)));
_exit(WEXITSTATUS(status));
}
static struct temp *templist = NULL;
static void
add_temp(const char *name)
{
struct temp *tp;
tp = alloc(offsetof(struct temp, tffn[0]) + strlen(name) + 1, APERM);
memcpy(tp->tffn, name, strlen(name) + 1);
tp->next = templist;
templist = tp;
}
/* alias of unlink() */
extern int _std_unlink(const char *);
/*
* Replacement for unlink() of kLIBC not supporting to remove files used by
* another processes.
*/
int
unlink(const char *name)
{
int rc;
rc = _std_unlink(name);
if (rc == -1 && errno != ENOENT)
add_temp(name);
return (rc);
}
static void
cleanup_temps(void)
{
struct temp *tp;
struct temp **tpnext;
for (tpnext = &templist, tp = templist; tp; tp = *tpnext) {
if (_std_unlink(tp->tffn) == 0 || errno == ENOENT) {
*tpnext = tp->next;
afree(tp, APERM);
} else {
tpnext = &tp->next;
}
}
}
static void
cleanup(void)
{
cleanup_temps();
}

23
sh.h
View File

@ -175,7 +175,7 @@
#endif
#ifdef EXTERN
__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.800 2017/04/02 14:14:08 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.801 2017/04/02 15:00:44 tg Exp $");
#endif
#define MKSH_VERSION "R54 2017/03/25"
@ -2273,6 +2273,14 @@ char *strdup_i(const char *, Area *);
char *strndup_i(const char *, size_t, Area *);
#endif
int unbksl(bool, int (*)(void), void (*)(int));
#ifdef __OS2__
/* os2.c */
void os2_init(int *, const char ***);
void setextlibpath(const char *, const char *);
int access_ex(int (*)(const char *, int), const char *, int);
int stat_ex(const char *, struct stat *);
const char *real_exec_name(const char *);
#endif
/* shf.c */
struct shf *shf_open(const char *, int, int, int);
struct shf *shf_fdopen(int, int, struct shf *);
@ -2448,11 +2456,14 @@ extern int tty_init_fd(void); /* initialise tty_fd, tty_devtty */
char mksh_cdirsep_c = (c); \
(mksh_cdirsep_c == '/' || mksh_cdirsep_c == '\\'); \
})
/*
* I've seen mksh_sdirsep(s) and mksh_vdirsep(s) but need to think
* more about the OS/2 port (and, possibly, toy with it) before I
* can merge this upstream, but good job so far @komh, thanks!
*/
#define mksh_sdirsep(s) __extension__({ \
const char *mksh_sdirsep_s = (s); \
((char *)((ksh_isalphx(mksh_sdirsep_s[0]) && \
mksh_sdirsep_s[1] == ':' && \
!mksh_cdirsep(mksh_sdirsep_s[2])) ? \
(mksh_sdirsep_s + 1) : strpbrk(mksh_sdirsep_s, "/\\"))); \
})
#define mksh_vdirsep(s) (mksh_sdirsep((s)) != NULL)
#else
#define mksh_abspath(s) ((s)[0] == '/')
#define mksh_cdirsep(c) ((c) == '/')

18
shf.c
View File

@ -25,7 +25,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/shf.c,v 1.76 2016/07/25 00:04:47 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/shf.c,v 1.77 2017/04/02 15:00:45 tg Exp $");
/* flags to shf_emptybuf() */
#define EB_READSW 0x01 /* about to switch to reading */
@ -518,7 +518,23 @@ shf_getse(char *buf, ssize_t bsize, struct shf *shf)
shf->rnleft -= ncopy;
buf += ncopy;
bsize -= ncopy;
#ifdef MKSH_WITH_TEXTMODE
if (end && buf > orig_buf + 1 && buf[-2] == '\r') {
buf--;
bsize++;
buf[-1] = '\n';
}
#endif
} while (!end && bsize);
#ifdef MKSH_WITH_TEXTMODE
if (!bsize && buf[-1] == '\r') {
int c = shf_getc(shf);
if (c == '\n')
buf[-1] = '\n';
else if (c != -1)
shf_ungetc(c, shf);
}
#endif
*buf = '\0';
return (buf);
}