mpv/core/parser-cfg.c

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/*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
#include <assert.h>
#include "osdep/io.h"
#include "parser-cfg.h"
#include "core/mp_msg.h"
#include "core/m_option.h"
#include "m_config.h"
/// Maximal include depth.
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#define MAX_RECURSION_DEPTH 8
/// Current include depth.
static int recursion_depth = 0;
/// Setup the \ref Config from a config file.
/** \param config The config object.
* \param conffile Path to the config file.
* \return 1 on sucess, -1 on error, 0 if file not accessible.
*/
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int m_config_parse_config_file(m_config_t *config, const char *conffile)
{
#define PRINT_LINENUM mp_msg(MSGT_CFGPARSER, MSGL_ERR, "%s:%d: ", conffile, line_num)
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#define MAX_LINE_LEN 10000
#define MAX_OPT_LEN 1000
#define MAX_PARAM_LEN 1500
Fix potential bugs and issues, general cleanups Most of these are reimar fixing issues found by Coverity static analyzer, and possibly some more cleanup commits independent from this. Since these commits are rather noisy, squash them all together. Try to make code a bit clearer. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35294 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: audio/out/ao_alsa.c Check the correct variable for NULL. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35323 b3059339-0415-0410-9bf9-f77b7e298cf2 Remove pointless unreachable code (the loop condition already checks the 0xff case). git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35325 b3059339-0415-0410-9bf9-f77b7e298cf2 Fix typo that might have caused reading beyond the string end. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35326 b3059339-0415-0410-9bf9-f77b7e298cf2 Do not needlessly use "long" types. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35331 b3059339-0415-0410-9bf9-f77b7e298cf2 Use AV_RB32 to avoid sign extension issues and validate offset before using it. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35332 b3059339-0415-0410-9bf9-f77b7e298cf2 Remove nonsense casts. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35343 b3059339-0415-0410-9bf9-f77b7e298cf2 Fix crash in case sh_audio allocation failed. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35348 b3059339-0415-0410-9bf9-f77b7e298cf2 Fix potential NULL dereference. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35351 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: libmpcodecs/ad_ffmpeg.c Note: Slightly modified. Fix malloc failure check to check the correct variable. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35353 b3059339-0415-0410-9bf9-f77b7e298cf2 Avoid code duplication and pointless casts. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35363 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: stream/tv.c Error out if an invalid channel list name was specified instead of continuing and reading outside array bounds all over the place. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35364 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: stream/tv.c Make array "static const". git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35365 b3059339-0415-0410-9bf9-f77b7e298cf2 Properly free resources even when encountering many parse errors. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35367 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: parser-cfg.c Avoid leaks in error handling. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35380 b3059339-0415-0410-9bf9-f77b7e298cf2 Do not do sign comparisons on "char" type which can be both signed or unsigned. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35381 b3059339-0415-0410-9bf9-f77b7e298cf2 Free cookies file data after parsing it. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35382 b3059339-0415-0410-9bf9-f77b7e298cf2 http_set_field only makes a copy of the string, so we still need to free it. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35383 b3059339-0415-0410-9bf9-f77b7e298cf2 check4proxies does not modify input URL, so mark it const. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35390 b3059339-0415-0410-9bf9-f77b7e298cf2 Remove proxy "support" from stream_rtp and stream_upd, trying to use a http proxy for UDP connections makes no sense. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35394 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: stream/stream_rtp.c stream/stream_udp.c Add url_new_with_proxy function to reduce code duplication and memleaks. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35395 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: stream/pnm.c stream/stream_live555.c stream/stream_nemesi.c stream/stream_rtsp.c Fix off-by-one errors in file descriptor validity checks. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35402 b3059339-0415-0410-9bf9-f77b7e298cf2 Remove pointless cast. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35403 b3059339-0415-0410-9bf9-f77b7e298cf2 Abort when opening the file failed instead of calling "write" with an invalid descriptor. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35404 b3059339-0415-0410-9bf9-f77b7e298cf2 Remove pointless local variable. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35411 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: stream/http.c
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FILE *fp = NULL;
char *line = NULL;
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char opt[MAX_OPT_LEN + 1];
char param[MAX_PARAM_LEN + 1];
char c; /* for the "" and '' check */
int tmp;
int line_num = 0;
int line_pos; /* line pos */
int opt_pos; /* opt pos */
int param_pos; /* param pos */
int ret = 1;
int errors = 0;
m_profile_t *profile = NULL;
mp_msg(MSGT_CFGPARSER, MSGL_V, "Reading config file %s", conffile);
if (recursion_depth > MAX_RECURSION_DEPTH) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR,
": too deep 'include'. check your configfiles\n");
ret = -1;
goto out;
}
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if ((line = malloc(MAX_LINE_LEN + 1)) == NULL) {
mp_msg(MSGT_CFGPARSER, MSGL_FATAL,
"\ncan't get memory for 'line': %s", strerror(errno));
ret = -1;
goto out;
} else
mp_msg(MSGT_CFGPARSER, MSGL_V, "\n");
if ((fp = fopen(conffile, "r")) == NULL) {
mp_msg(MSGT_CFGPARSER, MSGL_V, ": %s\n", strerror(errno));
ret = 0;
goto out;
}
while (fgets(line, MAX_LINE_LEN, fp)) {
if (errors >= 16) {
mp_msg(MSGT_CFGPARSER, MSGL_FATAL, "too many errors\n");
goto out;
}
line_num++;
line_pos = 0;
/* skip whitespaces */
while (isspace(line[line_pos]))
++line_pos;
/* EOL / comment */
if (line[line_pos] == '\0' || line[line_pos] == '#')
continue;
/* read option. */
for (opt_pos = 0; isprint(line[line_pos]) &&
line[line_pos] != ' ' &&
line[line_pos] != '#' &&
line[line_pos] != '='; /* NOTHING */) {
opt[opt_pos++] = line[line_pos++];
if (opt_pos >= MAX_OPT_LEN) {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "too long option\n");
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errors++;
ret = -1;
goto nextline;
}
}
if (opt_pos == 0) {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "parse error\n");
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ret = -1;
errors++;
continue;
}
opt[opt_pos] = '\0';
/* Profile declaration */
if (opt_pos > 2 && opt[0] == '[' && opt[opt_pos - 1] == ']') {
opt[opt_pos - 1] = '\0';
if (strcmp(opt + 1, "default"))
profile = m_config_add_profile(config, opt + 1);
else
profile = NULL;
continue;
}
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/* skip whitespaces */
while (isspace(line[line_pos]))
++line_pos;
param_pos = 0;
bool param_set = false;
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/* check '=' */
if (line[line_pos] == '=') {
line_pos++;
param_set = true;
/* whitespaces... */
while (isspace(line[line_pos]))
++line_pos;
/* read the parameter */
if (line[line_pos] == '"' || line[line_pos] == '\'') {
c = line[line_pos];
++line_pos;
for (param_pos = 0; line[line_pos] != c; /* NOTHING */) {
param[param_pos++] = line[line_pos++];
if (param_pos >= MAX_PARAM_LEN) {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER, MSGL_ERR,
"option %s has a too long parameter\n", opt);
ret = -1;
errors++;
goto nextline;
}
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}
line_pos++; /* skip the closing " or ' */
} else {
for (param_pos = 0; isprint(line[line_pos])
&& !isspace(line[line_pos])
&& line[line_pos] != '#'; /* NOTHING */) {
param[param_pos++] = line[line_pos++];
if (param_pos >= MAX_PARAM_LEN) {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "too long parameter\n");
ret = -1;
errors++;
goto nextline;
}
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}
}
while (isspace(line[line_pos]))
++line_pos;
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}
param[param_pos] = '\0';
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/* EOL / comment */
if (line[line_pos] != '\0' && line[line_pos] != '#') {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER, MSGL_ERR,
"extra characters: %s\n", line + line_pos);
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ret = -1;
}
bstr bopt = bstr0(opt);
bstr bparam = bstr0(param);
if (profile && bstr_equals0(bopt, "profile-desc")) {
m_profile_set_desc(profile, param);
goto nextline;
}
tmp = m_config_option_requires_param(config, bopt);
if (tmp > 0 && !param_set)
tmp = M_OPT_MISSING_PARAM;
if (tmp < 0) {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER, MSGL_ERR,
"error parsing option %s=%s: %s\n",
opt, param, m_option_strerror(tmp));
continue;
}
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if (profile) {
tmp = m_config_set_profile_option(config, profile, bopt, bparam);
} else {
tmp = m_config_set_option_ext(config, bopt, bparam,
M_SETOPT_FROM_CONFIG_FILE);
}
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if (tmp < 0) {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER, MSGL_ERR,
"setting option %s='%s' failed.\n", opt, param);
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continue;
/* break */
}
nextline:
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;
}
out:
Fix potential bugs and issues, general cleanups Most of these are reimar fixing issues found by Coverity static analyzer, and possibly some more cleanup commits independent from this. Since these commits are rather noisy, squash them all together. Try to make code a bit clearer. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35294 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: audio/out/ao_alsa.c Check the correct variable for NULL. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35323 b3059339-0415-0410-9bf9-f77b7e298cf2 Remove pointless unreachable code (the loop condition already checks the 0xff case). git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35325 b3059339-0415-0410-9bf9-f77b7e298cf2 Fix typo that might have caused reading beyond the string end. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35326 b3059339-0415-0410-9bf9-f77b7e298cf2 Do not needlessly use "long" types. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35331 b3059339-0415-0410-9bf9-f77b7e298cf2 Use AV_RB32 to avoid sign extension issues and validate offset before using it. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35332 b3059339-0415-0410-9bf9-f77b7e298cf2 Remove nonsense casts. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35343 b3059339-0415-0410-9bf9-f77b7e298cf2 Fix crash in case sh_audio allocation failed. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35348 b3059339-0415-0410-9bf9-f77b7e298cf2 Fix potential NULL dereference. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35351 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: libmpcodecs/ad_ffmpeg.c Note: Slightly modified. Fix malloc failure check to check the correct variable. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35353 b3059339-0415-0410-9bf9-f77b7e298cf2 Avoid code duplication and pointless casts. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35363 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: stream/tv.c Error out if an invalid channel list name was specified instead of continuing and reading outside array bounds all over the place. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35364 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: stream/tv.c Make array "static const". git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35365 b3059339-0415-0410-9bf9-f77b7e298cf2 Properly free resources even when encountering many parse errors. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35367 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: parser-cfg.c Avoid leaks in error handling. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35380 b3059339-0415-0410-9bf9-f77b7e298cf2 Do not do sign comparisons on "char" type which can be both signed or unsigned. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35381 b3059339-0415-0410-9bf9-f77b7e298cf2 Free cookies file data after parsing it. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35382 b3059339-0415-0410-9bf9-f77b7e298cf2 http_set_field only makes a copy of the string, so we still need to free it. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35383 b3059339-0415-0410-9bf9-f77b7e298cf2 check4proxies does not modify input URL, so mark it const. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35390 b3059339-0415-0410-9bf9-f77b7e298cf2 Remove proxy "support" from stream_rtp and stream_upd, trying to use a http proxy for UDP connections makes no sense. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35394 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: stream/stream_rtp.c stream/stream_udp.c Add url_new_with_proxy function to reduce code duplication and memleaks. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35395 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: stream/pnm.c stream/stream_live555.c stream/stream_nemesi.c stream/stream_rtsp.c Fix off-by-one errors in file descriptor validity checks. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35402 b3059339-0415-0410-9bf9-f77b7e298cf2 Remove pointless cast. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35403 b3059339-0415-0410-9bf9-f77b7e298cf2 Abort when opening the file failed instead of calling "write" with an invalid descriptor. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35404 b3059339-0415-0410-9bf9-f77b7e298cf2 Remove pointless local variable. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@35411 b3059339-0415-0410-9bf9-f77b7e298cf2 Conflicts: stream/http.c
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free(line);
if (fp)
fclose(fp);
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--recursion_depth;
if (ret < 0) {
mp_msg(MSGT_CFGPARSER, MSGL_FATAL, "Error loading config file %s.\n",
conffile);
}
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return ret;
}