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8da8bc477f
In load-buffer, read until EOF rather than using stat() and reading a fixed size. Allows use of FIFOs and whatnot. From Tiago Cunha, idea from Fulvio Ciriaco.
100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
/* $Id: cmd-load-buffer.c,v 1.15 2010-02-26 13:30:07 tcunha Exp $ */
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/*
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* Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "tmux.h"
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/*
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* Loads a session paste buffer from a file.
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*/
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int cmd_load_buffer_exec(struct cmd *, struct cmd_ctx *);
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const struct cmd_entry cmd_load_buffer_entry = {
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"load-buffer", "loadb",
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CMD_BUFFER_SESSION_USAGE " path",
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CMD_ARG1, "",
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cmd_buffer_init,
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cmd_buffer_parse,
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cmd_load_buffer_exec,
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cmd_buffer_free,
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cmd_buffer_print
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};
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int
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cmd_load_buffer_exec(struct cmd *self, struct cmd_ctx *ctx)
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{
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struct cmd_buffer_data *data = self->data;
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struct session *s;
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FILE *f;
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char *pdata, *new_pdata;
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size_t psize;
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u_int limit;
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int ch;
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if ((s = cmd_find_session(ctx, data->target)) == NULL)
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return (-1);
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if ((f = fopen(data->arg, "rb")) == NULL) {
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ctx->error(ctx, "%s: %s", data->arg, strerror(errno));
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return (-1);
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}
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pdata = NULL;
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psize = 0;
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while ((ch = getc(f)) != EOF) {
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/* Do not let the server die due to memory exhaustion. */
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if ((new_pdata = realloc(pdata, psize + 2)) == NULL) {
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ctx->error(ctx, "realloc error: %s", strerror(errno));
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goto error;
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}
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pdata = new_pdata;
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pdata[psize++] = ch;
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}
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if (ferror(f)) {
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ctx->error(ctx, "%s: read error", data->arg);
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goto error;
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}
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if (pdata != NULL)
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pdata[psize] = '\0';
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fclose(f);
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limit = options_get_number(&s->options, "buffer-limit");
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if (data->buffer == -1) {
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paste_add(&s->buffers, pdata, psize, limit);
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return (0);
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}
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if (paste_replace(&s->buffers, data->buffer, pdata, psize) != 0) {
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ctx->error(ctx, "no buffer %d", data->buffer);
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goto error;
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}
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return (0);
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error:
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if (pdata != NULL)
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xfree(pdata);
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fclose(f);
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return (-1);
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}
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