mirror of
https://github.com/tmux/tmux.git
synced 2024-11-05 02:18:47 +00:00
216 lines
4.5 KiB
C
216 lines
4.5 KiB
C
/* $Id: cfg.c,v 1.5 2008-06-02 21:36:51 nicm Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
|
|
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
|
|
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <errno.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "tmux.h"
|
|
|
|
/*
|
|
* Config file parser. Pretty quick and simple, each line is parsed into a
|
|
* argv array and executed as a command.
|
|
*/
|
|
|
|
char *cfg_string(FILE *, char, int);
|
|
void printflike2 cfg_print(struct cmd_ctx *, const char *, ...);
|
|
void printflike2 cfg_error(struct cmd_ctx *, const char *, ...);
|
|
|
|
char *cfg_cause;
|
|
|
|
void printflike2
|
|
cfg_print(unused struct cmd_ctx *ctx, unused const char *fmt, ...)
|
|
{
|
|
}
|
|
|
|
void printflike2
|
|
cfg_error(unused struct cmd_ctx *ctx, const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
va_start(ap, fmt);
|
|
xvasprintf(&cfg_cause, fmt, ap);
|
|
va_end(ap);
|
|
}
|
|
|
|
int
|
|
load_cfg(const char *path, char **causep)
|
|
{
|
|
FILE *f;
|
|
int ch, argc;
|
|
u_int line;
|
|
char **argv, *buf, *s, *cause;
|
|
size_t len;
|
|
struct cmd *cmd;
|
|
struct cmd_ctx ctx;
|
|
|
|
if ((f = fopen(path, "rb")) == NULL) {
|
|
xasprintf(causep, "%s: %s", path, strerror(errno));
|
|
return (1);
|
|
}
|
|
cause = NULL;
|
|
|
|
argv = NULL;
|
|
argc = 0;
|
|
|
|
buf = NULL;
|
|
len = 0;
|
|
|
|
line = 0;
|
|
while ((ch = getc(f)) != EOF) {
|
|
switch (ch) {
|
|
case '#':
|
|
/* Comment: discard until EOL. */
|
|
while ((ch = getc(f)) != '\n' && ch != EOF)
|
|
;
|
|
line++;
|
|
break;
|
|
case '\'':
|
|
if ((s = cfg_string(f, '\'', 0)) == NULL)
|
|
goto error;
|
|
argv = xrealloc(argv, argc + 1, sizeof (char *));
|
|
argv[argc++] = s;
|
|
break;
|
|
case '"':
|
|
if ((s = cfg_string(f, '"', 1)) == NULL)
|
|
goto error;
|
|
argv = xrealloc(argv, argc + 1, sizeof (char *));
|
|
argv[argc++] = s;
|
|
break;
|
|
case '\n':
|
|
case EOF:
|
|
case ' ':
|
|
case '\t':
|
|
if (len != 0) {
|
|
buf[len] = '\0';
|
|
|
|
argv = xrealloc(
|
|
argv, argc + 1, sizeof (char *));
|
|
argv[argc++] = buf;
|
|
|
|
buf = NULL;
|
|
len = 0;
|
|
}
|
|
|
|
if ((ch != '\n' && ch != EOF) || argc == 0)
|
|
break;
|
|
line++;
|
|
|
|
if ((cmd = cmd_parse(argc, argv, &cause)) == NULL)
|
|
goto error;
|
|
|
|
ctx.msgdata = NULL;
|
|
ctx.cursession = NULL;
|
|
ctx.curclient = NULL;
|
|
|
|
ctx.error = cfg_error;
|
|
ctx.print = cfg_print;
|
|
|
|
ctx.cmdclient = NULL;
|
|
ctx.flags = 0;
|
|
|
|
cfg_cause = NULL;
|
|
cmd_exec(cmd, &ctx);
|
|
cmd_free(cmd);
|
|
if (cfg_cause != NULL) {
|
|
cause = cfg_cause;
|
|
goto error;
|
|
}
|
|
|
|
while (--argc >= 0)
|
|
xfree(argv[argc]);
|
|
argc = 0;
|
|
break;
|
|
default:
|
|
if (len >= SIZE_MAX - 2)
|
|
goto error;
|
|
|
|
buf = xrealloc(buf, 1, len + 1);
|
|
buf[len++] = ch;
|
|
break;
|
|
}
|
|
}
|
|
|
|
fclose(f);
|
|
|
|
return (0);
|
|
|
|
error:
|
|
while (--argc >= 0)
|
|
xfree(argv[argc]);
|
|
xfree(argv);
|
|
|
|
if (buf != NULL)
|
|
xfree(buf);
|
|
|
|
if (cause == NULL)
|
|
xasprintf(causep, "%s: error at line %u", path, line);
|
|
else
|
|
xasprintf(causep, "%s: %s at line %u", path, cause, line);
|
|
return (1);
|
|
}
|
|
|
|
char *
|
|
cfg_string(FILE *f, char endch, int esc)
|
|
{
|
|
int ch;
|
|
char *buf;
|
|
size_t len;
|
|
|
|
buf = NULL;
|
|
len = 0;
|
|
|
|
while ((ch = getc(f)) != endch) {
|
|
switch (ch) {
|
|
case EOF:
|
|
xfree(buf);
|
|
return (NULL);
|
|
case '\\':
|
|
if (!esc)
|
|
break;
|
|
switch (ch = getc(f)) {
|
|
case EOF:
|
|
xfree(buf);
|
|
return (NULL);
|
|
case 'r':
|
|
ch = '\r';
|
|
break;
|
|
case 'n':
|
|
ch = '\n';
|
|
break;
|
|
case 't':
|
|
ch = '\t';
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (len >= SIZE_MAX - 2) {
|
|
xfree(buf);
|
|
return (NULL);
|
|
}
|
|
buf = xrealloc(buf, 1, len + 1);
|
|
buf[len++] = ch;
|
|
}
|
|
|
|
buf[len] = '\0';
|
|
return (buf);
|
|
}
|