| 1 | /* |
| 2 | * Printing interface for PuTTY. |
| 3 | */ |
| 4 | |
| 5 | #include <windows.h> |
| 6 | #include "putty.h" |
| 7 | |
| 8 | struct printer_enum_tag { |
| 9 | int nprinters; |
| 10 | LPPRINTER_INFO_5 info; |
| 11 | }; |
| 12 | |
| 13 | struct printer_job_tag { |
| 14 | HANDLE hprinter; |
| 15 | }; |
| 16 | |
| 17 | printer_enum *printer_start_enum(int *nprinters_ptr) |
| 18 | { |
| 19 | printer_enum *ret = smalloc(sizeof(printer_enum)); |
| 20 | char *buffer = NULL; |
| 21 | DWORD needed, nprinters; |
| 22 | |
| 23 | *nprinters_ptr = 0; /* default return value */ |
| 24 | buffer = smalloc(512); |
| 25 | if (EnumPrinters(PRINTER_ENUM_LOCAL, NULL, 5, |
| 26 | buffer, 512, &needed, &nprinters) == 0) |
| 27 | goto error; |
| 28 | |
| 29 | buffer = srealloc(buffer, needed); |
| 30 | |
| 31 | if (EnumPrinters(PRINTER_ENUM_LOCAL, NULL, 5, |
| 32 | (LPBYTE)buffer, needed, &needed, &nprinters) == 0) |
| 33 | goto error; |
| 34 | |
| 35 | ret->info = (LPPRINTER_INFO_5)buffer; |
| 36 | ret->nprinters = *nprinters_ptr = nprinters; |
| 37 | |
| 38 | return ret; |
| 39 | |
| 40 | error: |
| 41 | sfree(buffer); |
| 42 | sfree(ret); |
| 43 | return NULL; |
| 44 | } |
| 45 | |
| 46 | char *printer_get_name(printer_enum *pe, int i) |
| 47 | { |
| 48 | if (!pe) |
| 49 | return NULL; |
| 50 | if (i < 0 || i >= pe->nprinters) |
| 51 | return NULL; |
| 52 | return pe->info[i].pPrinterName; |
| 53 | } |
| 54 | |
| 55 | void printer_finish_enum(printer_enum *pe) |
| 56 | { |
| 57 | if (!pe) |
| 58 | return; |
| 59 | sfree(pe->info); |
| 60 | sfree(pe); |
| 61 | } |
| 62 | |
| 63 | printer_job *printer_start_job(char *printer) |
| 64 | { |
| 65 | printer_job *ret = smalloc(sizeof(printer_job)); |
| 66 | DOC_INFO_1 docinfo; |
| 67 | int jobstarted = 0, pagestarted = 0; |
| 68 | |
| 69 | ret->hprinter = NULL; |
| 70 | if (!OpenPrinter(printer, &ret->hprinter, NULL)) |
| 71 | goto error; |
| 72 | |
| 73 | docinfo.pDocName = "PuTTY remote printer output"; |
| 74 | docinfo.pOutputFile = NULL; |
| 75 | docinfo.pDatatype = "RAW"; |
| 76 | |
| 77 | if (!StartDocPrinter(ret->hprinter, 1, (LPSTR)&docinfo)) |
| 78 | goto error; |
| 79 | jobstarted = 1; |
| 80 | |
| 81 | if (!StartPagePrinter(ret->hprinter)) |
| 82 | goto error; |
| 83 | pagestarted = 1; |
| 84 | |
| 85 | return ret; |
| 86 | |
| 87 | error: |
| 88 | if (pagestarted) |
| 89 | EndPagePrinter(ret->hprinter); |
| 90 | if (jobstarted) |
| 91 | EndDocPrinter(ret->hprinter); |
| 92 | if (ret->hprinter) |
| 93 | ClosePrinter(ret->hprinter); |
| 94 | sfree(ret); |
| 95 | return NULL; |
| 96 | } |
| 97 | |
| 98 | void printer_job_data(printer_job *pj, void *data, int len) |
| 99 | { |
| 100 | DWORD written; |
| 101 | |
| 102 | if (!pj) |
| 103 | return; |
| 104 | |
| 105 | WritePrinter(pj->hprinter, data, len, &written); |
| 106 | } |
| 107 | |
| 108 | void printer_finish_job(printer_job *pj) |
| 109 | { |
| 110 | if (!pj) |
| 111 | return; |
| 112 | |
| 113 | EndPagePrinter(pj->hprinter); |
| 114 | EndDocPrinter(pj->hprinter); |
| 115 | ClosePrinter(pj->hprinter); |
| 116 | sfree(pj); |
| 117 | } |