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https://github.com/tmate-io/tmate.git
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a8ec5f1d09
This commit dedicated to Tom: protecting idiots from their own stupidity for more than 20 years.
133 lines
2.9 KiB
C
133 lines
2.9 KiB
C
/* $Id: cfg.c,v 1.16 2009-05-21 19:38:51 nicm Exp $ */
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/*
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* Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
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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 <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include "tmux.h"
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/*
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* Config file parser. Pretty quick and simple, each line is parsed into a
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* argv array and executed as a command.
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*/
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char *cfg_string(FILE *, char, int);
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void printflike2 cfg_print(struct cmd_ctx *, const char *, ...);
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void printflike2 cfg_error(struct cmd_ctx *, const char *, ...);
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char *cfg_cause;
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void printflike2
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cfg_print(unused struct cmd_ctx *ctx, unused const char *fmt, ...)
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{
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}
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void printflike2
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cfg_error(unused struct cmd_ctx *ctx, const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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xvasprintf(&cfg_cause, fmt, ap);
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va_end(ap);
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}
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int
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load_cfg(const char *path, char **cause)
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{
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FILE *f;
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u_int n;
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struct stat sb;
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char *buf, *line, *ptr;
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size_t len;
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struct cmd_list *cmdlist;
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struct cmd_ctx ctx;
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if (stat(path, &sb) != 0) {
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xasprintf(cause, "%s: %s", path, strerror(errno));
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return (-1);
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}
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if (!S_ISREG(sb.st_mode)) {
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xasprintf(cause, "%s: not a regular file", path);
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return (-1);
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}
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if ((f = fopen(path, "rb")) == NULL) {
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xasprintf(cause, "%s: %s", path, strerror(errno));
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return (1);
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}
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n = 0;
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line = NULL;
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while ((buf = fgetln(f, &len))) {
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if (buf[len - 1] == '\n')
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buf[len - 1] = '\0';
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else {
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line = xrealloc(line, 1, len + 1);
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memcpy(line, buf, len);
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line[len] = '\0';
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buf = line;
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}
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n++;
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if (cmd_string_parse(buf, &cmdlist, cause) != 0) {
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if (*cause == NULL)
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continue;
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goto error;
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}
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if (cmdlist == NULL)
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continue;
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cfg_cause = NULL;
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ctx.msgdata = NULL;
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ctx.cursession = NULL;
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ctx.curclient = NULL;
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ctx.error = cfg_error;
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ctx.print = cfg_print;
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ctx.info = cfg_print;
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ctx.cmdclient = NULL;
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cfg_cause = NULL;
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cmd_list_exec(cmdlist, &ctx);
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cmd_list_free(cmdlist);
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if (cfg_cause != NULL) {
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*cause = cfg_cause;
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goto error;
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}
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}
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if (line != NULL)
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xfree(line);
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fclose(f);
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return (0);
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error:
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fclose(f);
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xasprintf(&ptr, "%s: %s at line %u", path, *cause, n);
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xfree(*cause);
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*cause = ptr;
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return (1);
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}
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