os2.c
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/* os/2 compatibility functions -- follows Ruby's license */
#include "ruby.h"
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <process.h>
#include <limits.h>
#include <errno.h>
#define INCL_DOS
#include <os2.h>
int
chown(char *path, int owner, int group)
{
return 0;
}
#if 0
int
link(char *from, char *to)
{
return -1;
}
#endif
#if defined(EMX_REPLACE_GETCWD) && (EMX_REPLACE_GETCWD) \
|| defined(EMX_REPLACE_CHDIR) && (EMX_REPLACE_CHDIR)
#include <unistd.h>
#if defined(EMX_REPLACE_GETCWD) && (EMX_REPLACE_GETCWD)
/* to handle the drive letter and DBCS characters within a given path */
char *
getcwd(char *path, size_t len)
{
return _getcwd2(path, (int)len);
}
#endif
#if defined(EMX_REPLACE_CHDIR) && (EMX_REPLACE_CHDIR)
/* to handle the drive letter and DBCS characters within a given path */
int
chdir(__const__ char *path)
{
return _chdir2(path);
}
#endif
#endif
typedef char* CHARP;
int
do_spawn(cmd)
char *cmd;
{
register char **a;
register char *s;
char **argv;
char *shell, *sw, *cmd2;
int status;
if ((shell = getenv("RUBYSHELL")) != NULL && *shell != '\0') {
s = shell;
do
*s = isupper(*s) ? tolower(*s) : *s;
while (*++s);
if (strstr(shell, "cmd") || strstr(shell, "4os2"))
sw = "/c";
else
sw = "-c";
} else if ((shell = getenv("SHELL")) != NULL && *shell != '\0') {
s = shell;
do
*s = isupper(*s) ? tolower(*s) : *s;
while (*++s);
if (strstr(shell, "cmd") || strstr(shell, "4os2"))
sw = "/c";
else
sw = "-c";
} else if ((shell = getenv("COMSPEC")) != NULL && *shell != '\0') {
s = shell;
do
*s = isupper(*s) ? tolower(*s) : *s;
while (*++s);
if (strstr(shell, "cmd") || strstr(shell, "4os2"))
sw = "/c";
else
sw = "-c";
}
/* see if there are shell metacharacters in it */
/*SUPPRESS 530*/
/* for (s = cmd; *s && isalpha(*s); s++) ;
if (*s == '=')
goto doshell; */
for (s = cmd; *s; s++) {
if (*sw == '-' && *s != ' ' &&
!isalpha(*s) && index("$&*(){}[]'\";\\|?<>~`\n",*s)) {
if (*s == '\n' && !s[1]) {
*s = '\0';
break;
}
goto doshell;
} else if (*sw == '/' && *s != ' ' &&
!isalpha(*s) && index("^()<>|&\n",*s)) {
if (*s == '\n' && !s[1]) {
*s = '\0';
break;
}
doshell:
status = spawnlp(P_WAIT,shell,shell,sw,cmd,(char*)NULL);
return status;
}
}
argv = ALLOC_N(CHARP,(strlen(cmd) / 2 + 2));
cmd2 = ALLOC_N(char, (strlen(cmd) + 1));
strcpy(cmd2, cmd);
a = argv;
for (s = cmd2; *s;) {
while (*s && isspace(*s)) s++;
if (*s)
*(a++) = s;
while (*s && !isspace(*s)) s++;
if (*s)
*s++ = '\0';
}
*a = NULL;
if (argv[0]) {
if ((status = spawnvp(P_WAIT, argv[0], argv)) == -1) {
free(argv);
free(cmd2);
return -1;
}
}
free(cmd2);
free(argv);
return status;
}