ref: a920c765f2b4130590fb5971a50690b21664957a
dir: /utils/awk/missing95.c/
/* popen and pclose are not part of win 95 and nt,
but it appears that _popen and _pclose "work".
if this won't load, use the return NULL statements. */
#include <stdio.h>
FILE *popen(char *s, char *m) {
return _popen(s, m); /* return NULL; */
}
int pclose(FILE *f) {
return _pclose(f); /* return NULL; */
}
#include <windows.h>
#include <winbase.h>
#include <winsock.h>
/* system doesn't work properly in some 32/64 (WoW64) combinations */
int system(char *s) {
int status, n;
PROCESS_INFORMATION pinfo;
STARTUPINFO si;
char *cmd;
char app[256];
static char cmdexe[] = "\\cmd.exe";
memset(&si, 0, sizeof(si));
si.cb = sizeof(si);
// si.dwFlags = STARTF_USESHOWWINDOW;
// si.wShowWindow = SW_SHOW;
n = GetSystemDirectory(app, sizeof(app)-sizeof(cmdexe));
if(n > sizeof(app))
return -1;
strcat_s(app, sizeof(app), cmdexe);
n = strlen(s)+20;
cmd = malloc(n);
if(cmd == NULL)
return -1;
strcpy_s(cmd, n, "cmd.exe /c");
strcat_s(cmd, n, s);
if(!CreateProcess(app, cmd, NULL, NULL, TRUE, CREATE_DEFAULT_ERROR_MODE, NULL/* env*/, NULL /*wdir*/, &si, &pinfo)){
fprintf(stderr, "can't create process %s %d\n", s, GetLastError());
free(cmd);
return -1;
}
free(cmd);
if(WaitForSingleObject(pinfo.hProcess, INFINITE) == WAIT_FAILED)
return -1;
if(!GetExitCodeProcess(pinfo.hProcess, &status))
status = 1;
//fprintf(stderr, "status %d\n", status);
return status;
}