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