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// SPDX-License-Identifier: GPL-2.0+ OR Apache-2.0
/*
* Copyright (C) 2018-2019 HUAWEI, Inc.
* http://www.huawei.com/
* Created by Li Guifu <bluce.liguifu@huawei.com>
*/
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <unistd.h>
#include "erofs/print.h"
#include "erofs/internal.h"
#include "liberofs_private.h"
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
struct erofs_configure cfg;
struct erofs_sb_info g_sbi;
bool erofs_stdout_tty;
void erofs_init_configure(void)
{
memset(&cfg, 0, sizeof(cfg));
cfg.c_dbg_lvl = EROFS_WARN;
cfg.c_version = PACKAGE_VERSION;
cfg.c_dry_run = false;
erofs_stdout_tty = isatty(STDOUT_FILENO);
}
void erofs_show_config(void)
{
const struct erofs_configure *c = &cfg;
if (c->c_dbg_lvl < EROFS_INFO)
return;
erofs_dump("\tc_version: [%8s]\n", c->c_version);
erofs_dump("\tc_dbg_lvl: [%8d]\n", c->c_dbg_lvl);
erofs_dump("\tc_dry_run: [%8d]\n", c->c_dry_run);
}
void erofs_exit_configure(void)
{
#ifdef HAVE_LIBSELINUX
if (cfg.sehnd)
selabel_close(cfg.sehnd);
#endif
if (cfg.c_img_path)
free(cfg.c_img_path);
if (cfg.c_src_path)
free(cfg.c_src_path);
}
struct erofs_configure *erofs_get_configure()
{
return &cfg;
}
static unsigned int fullpath_prefix; /* root directory prefix length */
void erofs_set_fs_root(const char *rootdir)
{
fullpath_prefix = strlen(rootdir);
}
const char *erofs_fspath(const char *fullpath)
{
const char *s = fullpath + fullpath_prefix;
while (*s == '/')
s++;
return s;
}
#ifdef HAVE_LIBSELINUX
int erofs_selabel_open(const char *file_contexts)
{
struct selinux_opt seopts[] = {
{ .type = SELABEL_OPT_PATH, .value = file_contexts }
};
if (cfg.sehnd) {
erofs_info("ignore duplicated file contexts \"%s\"",
file_contexts);
return -EBUSY;
}
cfg.sehnd = selabel_open(SELABEL_CTX_FILE, seopts, 1);
if (!cfg.sehnd) {
erofs_err("failed to open file contexts \"%s\"",
file_contexts);
return -EINVAL;
}
return 0;
}
#endif
static bool __erofs_is_progressmsg;
char *erofs_trim_for_progressinfo(const char *str, int placeholder)
{
int col, len;
if (!erofs_stdout_tty) {
return strdup(str);
} else {
#ifdef GWINSZ_IN_SYS_IOCTL
struct winsize winsize;
if(ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsize) >= 0 &&
winsize.ws_col > 0)
col = winsize.ws_col;
else
#endif
col = 80;
}
if (col <= placeholder)
return strdup("");
len = strlen(str);
/* omit over long prefixes */
if (len > col - placeholder) {
char *s = strdup(str + len - (col - placeholder));
if (col > placeholder + 2) {
s[0] = '[';
s[1] = ']';
}
return s;
}
return strdup(str);
}
void erofs_msg(int dbglv, const char *fmt, ...)
{
va_list ap;
FILE *f = dbglv >= EROFS_ERR ? stderr : stdout;
if (__erofs_is_progressmsg) {
fputc('\n', stdout);
__erofs_is_progressmsg = false;
}
va_start(ap, fmt);
vfprintf(f, fmt, ap);
va_end(ap);
}
void erofs_update_progressinfo(const char *fmt, ...)
{
char msg[8192];
va_list ap;
if (cfg.c_dbg_lvl >= EROFS_INFO || !cfg.c_showprogress)
return;
va_start(ap, fmt);
vsprintf(msg, fmt, ap);
va_end(ap);
if (erofs_stdout_tty) {
printf("\r\033[K%s", msg);
__erofs_is_progressmsg = true;
fflush(stdout);
return;
}
fputs(msg, stdout);
fputc('\n', stdout);
}
unsigned int erofs_get_available_processors(void)
{
#if defined(HAVE_UNISTD_H) && defined(HAVE_SYSCONF)
return sysconf(_SC_NPROCESSORS_ONLN);
#else
return 0;
#endif
}
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