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59f7b24b9d
Now that all the call sites are expecting a size_t instead of an int length field, it's no longer particularly difficult to make it actually return the pointer,length pair in the form of a ptrlen. It would be nice to say that simplifies call sites because those ptrlens can all be passed straight along to other ptrlen-consuming functions. Actually almost none of the call sites are like that _yet_, but this makes it possible to move them in that direction in future (as part of my general aim to migrate ptrlen-wards as much as I can). But also it's just nicer to keep the pointer and length together in one variable, and not have to declare them both in advance with two extra lines of boilerplate.
59 lines
1.2 KiB
C
59 lines
1.2 KiB
C
/*
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* Printing interface for PuTTY.
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*/
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#include <assert.h>
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#include <stdio.h>
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#include "putty.h"
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struct printer_job_tag {
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FILE *fp;
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};
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printer_job *printer_start_job(char *printer)
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{
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printer_job *ret = snew(printer_job);
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/*
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* On Unix, we treat the printer string as the name of a
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* command to pipe to - typically lpr, of course.
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*/
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ret->fp = popen(printer, "w");
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if (!ret->fp) {
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sfree(ret);
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ret = NULL;
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}
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return ret;
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}
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void printer_job_data(printer_job *pj, const void *data, size_t len)
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{
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if (!pj)
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return;
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if (fwrite(data, 1, len, pj->fp) < len)
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/* ignore */;
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}
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void printer_finish_job(printer_job *pj)
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{
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if (!pj)
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return;
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pclose(pj->fp);
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sfree(pj);
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}
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/*
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* There's no sensible way to enumerate printers under Unix, since
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* practically any valid Unix command is a valid printer :-) So
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* these are useless stub functions, and uxcfg.c will disable the
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* drop-down list in the printer configurer.
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*/
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printer_enum *printer_start_enum(int *nprinters_ptr) {
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*nprinters_ptr = 0;
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return NULL;
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}
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char *printer_get_name(printer_enum *pe, int i) { return NULL;
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}
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void printer_finish_enum(printer_enum *pe) { }
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