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// Copyright 2009 Daniel Erat <dan@erat.org>
// All rights reserved.
#include "common.h"
#include <cstdarg>
#include <cstdio>
#include <cstdlib>
using std::string;
using std::vector;
namespace xsettingsd {
string StringPrintf(const char* format, ...) {
char buffer[1024];
va_list argp;
va_start(argp, format);
vsnprintf(buffer, sizeof(buffer), format, argp);
va_end(argp);
return string(buffer);
}
vector<string> SplitString(const string& str, const string& delim) {
if (str.empty())
return vector<string>();
if (delim.empty())
return vector<string>(1, str);
vector<string> parts;
size_t start = 0;
while (start <= str.size()) {
if (start == str.size()) {
parts.push_back(string());
break;
}
size_t next = str.find(delim, start);
if (next == string::npos) {
parts.push_back(str.substr(start, str.size() - start));
break;
}
parts.push_back(str.substr(start, next - start));
start = next + delim.size();
}
return parts;
}
bool IsLittleEndian() {
int i = 1;
return reinterpret_cast<char*>(&i)[0];
}
int GetPadding(int length, int increment) {
return (increment - (length % increment)) % increment;
// From xsettings-common.h in Owen Taylor's reference implementation --
// "n" is length and "m" is increment, I think. This produces results
// that don't seem like padding, though: when "n" is 2 and "m" is 4, it
// produces 4.
//return ((n + m - 1) & (~(m - 1)));
}
vector<string> GetDefaultConfigFilePaths() {
vector<string> paths;
// Try ~/.xsettingsd first.
const char* home_dir = getenv("HOME");
if (home_dir)
paths.push_back(StringPrintf("%s/.xsettingsd", home_dir));
// Next look under $XDG_CONFIG_HOME, or in $HOME/.config if $XDG_CONFIG_HOME
// is unset.
vector<string> xdg_dirs;
const char* xdg_config_home = getenv("XDG_CONFIG_HOME");
if (xdg_config_home && xdg_config_home[0] != '\0')
xdg_dirs.push_back(xdg_config_home);
else if (home_dir)
xdg_dirs.push_back(StringPrintf("%s/.config", home_dir));
// Finally split the colon-delimited $XDG_CONFIG_DIRS variable.
const char* xdg_config_dirs = getenv("XDG_CONFIG_DIRS");
if (xdg_config_dirs) {
vector<string> split_dirs = SplitString(xdg_config_dirs, ":");
xdg_dirs.insert(xdg_dirs.end(), split_dirs.begin(), split_dirs.end());
} else {
xdg_dirs.push_back("/etc");
}
for (size_t i = 0; i < xdg_dirs.size(); ++i) {
paths.push_back(StringPrintf("%s/xsettingsd/xsettingsd.conf",
xdg_dirs[i].c_str()));
}
return paths;
}
const char* kProgName = "xsettingsd";
} // namespace xsettingsd
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