a88144215c
* Point $HOME to a non-existing path when building to prevent certain tools (such as wget) from falling back on /etc/passwd to locate the home directory (which we don't want them to look at since it's not declared as an input).
108 lines
2.2 KiB
C++
108 lines
2.2 KiB
C++
#ifndef __UTIL_H
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#define __UTIL_H
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#include <string>
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#include <list>
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#include <set>
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#include <sstream>
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#include <unistd.h>
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#include <boost/format.hpp>
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using namespace std;
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using namespace boost;
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class Error : public exception
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{
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protected:
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string err;
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public:
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Error(const format & f);
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~Error() throw () { };
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const char * what() const throw () { return err.c_str(); }
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const string & msg() const throw () { return err; }
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};
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class SysError : public Error
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{
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public:
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SysError(const format & f);
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};
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class UsageError : public Error
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{
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public:
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UsageError(const format & f) : Error(f) { };
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};
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typedef list<string> Strings;
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typedef set<string> StringSet;
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/* The canonical system name, as returned by config.guess. */
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extern string thisSystem;
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/* Return an absolutized path, resolving paths relative to the
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specified directory, or the current directory otherwise. The path
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is also canonicalised. */
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string absPath(string path, string dir = "");
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/* Canonicalise a path (as in realpath(3)). */
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string canonPath(const string & path);
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/* Return the directory part of the given path, i.e., everything
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before the final `/'. */
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string dirOf(string path);
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/* Return the base name of the given path, i.e., everything following
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the final `/'. */
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string baseNameOf(string path);
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/* Return true iff the given path exists. */
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bool pathExists(const string & path);
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/* Delete a path; i.e., in the case of a directory, it is deleted
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recursively. Don't use this at home, kids. */
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void deletePath(const string & path);
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/* Make a path read-only recursively. */
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void makePathReadOnly(const string & path);
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/* Messages. */
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typedef enum {
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lvlError,
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lvlTalkative,
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lvlChatty,
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lvlDebug,
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lvlVomit
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} Verbosity;
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extern Verbosity verbosity; /* supress msgs > this */
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class Nest
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{
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private:
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bool nest;
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public:
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Nest(Verbosity level, const format & f);
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~Nest();
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};
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void msg(Verbosity level, const format & f);
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void debug(const format & f); /* short-hand for msg(lvlDebug, ...) */
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/* Wrappers arount read()/write() that read/write exactly the
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requested number of bytes. */
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void readFull(int fd, unsigned char * buf, size_t count);
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void writeFull(int fd, const unsigned char * buf, size_t count);
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#endif /* !__UTIL_H */
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