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https://github.com/RGBCube/serenity
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331ab52318
I ran into a need for this when running stress-ng against the system. This change implements the full functionality of scandir, where it accepts a selection callback, as well as a comparison callback. These can be used to trim and sort the entries from the directory that we are being asked to enumerate. A test was also included to validate the new functionality.
62 lines
1.2 KiB
C
62 lines
1.2 KiB
C
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <sys/cdefs.h>
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#include <sys/types.h>
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__BEGIN_DECLS
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enum {
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DT_UNKNOWN = 0,
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#define DT_UNKNOWN DT_UNKNOWN
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DT_FIFO = 1,
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#define DT_FIFO DT_FIFO
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DT_CHR = 2,
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#define DT_CHR DT_CHR
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DT_DIR = 4,
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#define DT_DIR DT_DIR
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DT_BLK = 6,
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#define DT_BLK DT_BLK
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DT_REG = 8,
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#define DT_REG DT_REG
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DT_LNK = 10,
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#define DT_LNK DT_LNK
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DT_SOCK = 12,
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#define DT_SOCK DT_SOCK
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DT_WHT = 14
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#define DT_WHT DT_WHT
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};
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struct dirent {
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ino_t d_ino;
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off_t d_off;
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unsigned short d_reclen;
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unsigned char d_type;
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char d_name[256];
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};
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struct __DIR {
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int fd;
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struct dirent cur_ent;
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char* buffer;
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size_t buffer_size;
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char* nextptr;
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};
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typedef struct __DIR DIR;
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DIR* opendir(const char* name);
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int closedir(DIR*);
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void rewinddir(DIR*);
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struct dirent* readdir(DIR*);
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int readdir_r(DIR*, struct dirent*, struct dirent**);
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int dirfd(DIR*);
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int scandir(const char* dirp, struct dirent*** namelist,
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int (*filter)(const struct dirent*),
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int (*compar)(const struct dirent**, const struct dirent**));
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__END_DECLS
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