ref: 12e226ac6798412271020d42645f69138715c519
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; }