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cc6d3591ad
When I wanted to append an ordinary C string to a BinarySink, without any prefix length field or suffix terminator, I was using the idiom put_datapl(bs, ptrlen_from_asciz(string)); but I've finally decided that's too cumbersome, and it deserves a shorter name. put_dataz(bs, string) now does the same thing - in fact it's a macro expanding to exactly the above. While I'm at it, I've also added put_datalit(), which is the same except that it expects a C string literal (and will enforce that at compile time, via PTRLEN_LITERAL which it calls in turn). You can use that where possible to avoid the run-time cost of the strlen.
70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
/*
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* Functions for making, destroying, and manipulating prompts_t
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* structures.
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*/
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#include "putty.h"
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prompts_t *new_prompts(void)
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{
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prompts_t *p = snew(prompts_t);
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p->prompts = NULL;
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p->n_prompts = p->prompts_size = 0;
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p->data = NULL;
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p->idata = -1;
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p->to_server = true; /* to be on the safe side */
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p->name = p->instruction = NULL;
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p->name_reqd = p->instr_reqd = false;
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p->callback = NULL;
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p->callback_ctx = NULL;
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p->ldisc_ptr_to_us = NULL;
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return p;
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}
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void add_prompt(prompts_t *p, char *promptstr, bool echo)
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{
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prompt_t *pr = snew(prompt_t);
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pr->prompt = promptstr;
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pr->echo = echo;
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pr->result = strbuf_new_nm();
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sgrowarray(p->prompts, p->prompts_size, p->n_prompts);
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p->prompts[p->n_prompts++] = pr;
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}
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void prompt_set_result(prompt_t *pr, const char *newstr)
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{
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strbuf_clear(pr->result);
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put_dataz(pr->result, newstr);
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}
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const char *prompt_get_result_ref(prompt_t *pr)
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{
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return pr->result->s;
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}
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char *prompt_get_result(prompt_t *pr)
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{
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return dupstr(pr->result->s);
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}
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void free_prompts(prompts_t *p)
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{
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size_t i;
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/* If an Ldisc currently knows about us, tell it to forget us, so
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* it won't dereference a stale pointer later. */
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if (p->ldisc_ptr_to_us)
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*p->ldisc_ptr_to_us = NULL;
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for (i=0; i < p->n_prompts; i++) {
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prompt_t *pr = p->prompts[i];
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strbuf_free(pr->result);
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sfree(pr->prompt);
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sfree(pr);
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}
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sfree(p->prompts);
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sfree(p->name);
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sfree(p->instruction);
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sfree(p);
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}
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