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Add -d option to ls(1).

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This commit is contained in:
Jonas 'Sortie' Termansen 2014-03-06 21:27:23 +01:00
parent f3d1b9d0e4
commit 2194bdb8b9
1 changed files with 32 additions and 13 deletions
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45
utils/ls.cpp
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@ -1,6 +1,6 @@
/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2013.
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2013, 2014.
This program 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
@ -43,6 +43,7 @@ int current_year;
#define VERSIONSTR "unknown version"
#endif
bool directory = false;
bool longformat = false;
bool showdotdot = false;
bool showdotfiles = false;
@ -116,26 +117,16 @@ void getentrycolor(const char** pre, const char** post, mode_t mode)
*post = "\e[37m";
}
int handleentry(const char* path, const char* name)
int handleentry_internal(const char* fullpath, const char* name)
{
bool isdotdot = strcmp(name, ".") == 0 || strcmp(name, "..") == 0;
bool isdotfile = !isdotdot && name[0] == '.';
if ( isdotdot && !showdotdot ) { return 0; }
if ( isdotfile && !showdotfiles ) { return 0; }
// TODO: Use openat and fstat.
char* fullpath = new char[strlen(path) + 1 + strlen(name) + 1];
strcpy(fullpath, path);
strcat(fullpath, "/");
strcat(fullpath, name);
struct stat st;
if ( stat(fullpath, &st) )
{
finishoutput();
error(0, errno, "stat: %s", fullpath);
delete[] fullpath;
return 2;
}
delete[] fullpath;
const char* colorpre;
const char* colorpost;
getentrycolor(&colorpre, &colorpost, st.st_mode);
@ -178,6 +169,21 @@ int handleentry(const char* path, const char* name)
return 0;
}
int handleentry(const char* path, const char* name)
{
bool isdotdot = strcmp(name, ".") == 0 || strcmp(name, "..") == 0;
bool isdotfile = !isdotdot && name[0] == '.';
if ( isdotdot && !showdotdot && !directory ) { return 0; }
if ( isdotfile && !showdotfiles && !directory ) { return 0; }
char* fullpath = new char[strlen(path) + 1 + strlen(name) + 1];
strcpy(fullpath, path);
strcat(fullpath, "/");
strcat(fullpath, name);
int result = handleentry_internal(fullpath, name);
delete[] fullpath;
return result;
}
int ls(const char* path)
{
time_t current_time;
@ -186,6 +192,9 @@ int ls(const char* path)
localtime_r(&current_time, &current_year_tm);
current_year = current_year_tm.tm_year;
if ( directory )
return handleentry_internal(path, path);
int ret = 1;
DIR* dir;
const size_t DEFAULT_ENTRIES_LEN = 4UL;
@ -196,7 +205,14 @@ int ls(const char* path)
if ( !entries ) { ls_perror("malloc"); goto cleanup_done; }
dir = opendir(path);
if ( !dir ) { perror(path); ret = 2; goto cleanup_entries; }
if ( !dir )
{
if ( errno == ENOTDIR )
return handleentry_internal(path, path);
perror(path);
ret = 2;
goto cleanup_entries;
}
struct dirent* entry;
while ( (entry = readdir(dir)) )
@ -275,6 +291,9 @@ int main(int argc, char* argv[])
{
switch ( c )
{
case 'd':
directory = true;
break;
case 'l':
longformat = true;
break;