File and Path Manipulation API.

File and path manipulation helper functions. More...

Collaboration diagram for File and Path Manipulation API.:

Files
file	rpmfileutil.h

Typedefs
typedef enum rpmCompressedMagic_e	rpmCompressedMagic

Enumerations
enum	rpmCompressedMagic_e {   COMPRESSED_NOT = 0 , COMPRESSED_OTHER = 1 , COMPRESSED_BZIP2 = 2 , COMPRESSED_ZIP = 3 ,   COMPRESSED_LZMA = 4 , COMPRESSED_XZ = 5 , COMPRESSED_LZIP = 6 , COMPRESSED_LRZIP = 7 ,   COMPRESSED_7ZIP = 8 , COMPRESSED_GEM = 9 , COMPRESSED_ZSTD = 10 }
enum	rpmglobFlags_e { RPMGLOB_NONE = 0 , RPMGLOB_NOCHECK = (1 << 0) }

Functions
int	rpmDoDigest (int algo, const char *fn, int asAscii, unsigned char *digest)
FD_t	rpmMkTemp (char *templ)
FD_t	rpmMkTempFile (const char *prefix, char **fn)
int	rpmioMkpath (const char *path, mode_t mode, uid_t uid, gid_t gid)
int	rpmMkdirs (const char *root, const char *pathstr)
char *	rpmCleanPath (char *path)
char *	rpmGenPath (const char *urlroot, const char *urlmdir, const char *urlfile)
char *	rpmGetPath (const char *path,...) RPM_GNUC_NULL_TERMINATED
int	rpmGlobPath (const char *pattern, rpmglobFlags flags, int *argcPtr, ARGV_t *argvPtr)
int	rpmGlob (const char *pattern, int *argcPtr, ARGV_t *argvPtr)
char *	rpmEscapeSpaces (const char *s)
char *	rpmEscape (const char *s, const char *accept)
void	rpmUnescape (char *s, const char *accept)
int	rpmFileIsCompressed (const char *file, rpmCompressedMagic *compressed)
int	rpmFileHasSuffix (const char *path, const char *suffix)
char *	rpmGetCwd (void)

Detailed Description

File and path manipulation helper functions.

Typedef Documentation

rpmCompressedMagic

typedef enum rpmCompressedMagic_e rpmCompressedMagic

Compression types detected by rpm (subject to build configuration).

Enumeration Type Documentation

rpmCompressedMagic_e

enum rpmCompressedMagic_e

Compression types detected by rpm (subject to build configuration).

Enumerator
COMPRESSED_NOT	not compressed
COMPRESSED_OTHER	gzip can handle
COMPRESSED_BZIP2	bzip2 can handle
COMPRESSED_ZIP	unzip can handle
COMPRESSED_LZMA	lzma can handle
COMPRESSED_XZ	xz can handle
COMPRESSED_LZIP	lzip can handle
COMPRESSED_LRZIP	lrzip can handle
COMPRESSED_7ZIP	7zip can handle
COMPRESSED_GEM	gem can handle
COMPRESSED_ZSTD	zstd can handle

rpmglobFlags_e

enum rpmglobFlags_e

RPM glob flags, largely modelled after glob(3) flags.

Enumerator
RPMGLOB_NOCHECK	same as GLOB_NOCHECK

Function Documentation

rpmCleanPath()

char * rpmCleanPath

(

char *

path

)

Canonicalize file path.

Parameters

path	path to canonicalize (in-place)

Returns

pointer to path

rpmDoDigest()

int rpmDoDigest	(	int	algo,
		const char *	fn,
		int	asAscii,
		unsigned char *	digest
	)

Calculate a file digest and size.

Parameters

	algo	digest algorithm
	fn	file name
	asAscii	return digest as ascii string?
[out]	digest	address of calculated digest

Returns

0 on success, 1 on error

rpmEscape()

char * rpmEscape	(	const char *	s,
		const char *	accept
	)

Escape given characters in string.

Parameters

s	string
accept	chars to escape

Returns

escaped string

rpmEscapeSpaces()

char * rpmEscapeSpaces

(

const char *

s

)

Escape isspace(3) characters in string.

Parameters

s

string

Returns

escaped string

rpmFileHasSuffix()

int rpmFileHasSuffix	(	const char *	path,
		const char *	suffix
	)

Check if path (string) ends with given suffix

Parameters

path	(path) string
suffix	suffix string to check for

Returns

1 if true, 0 otherwise

rpmFileIsCompressed()

int rpmFileIsCompressed	(	const char *	file,
		rpmCompressedMagic *	compressed
	)

Return type of compression used in file.

Parameters

	file	name of file
[out]	compressed	address of compression type

Returns

0 on success, 1 on I/O error

rpmGenPath()

char * rpmGenPath	(	const char *	urlroot,
		const char *	urlmdir,
		const char *	urlfile
	)

Merge 3 args into path, any or all of which may be a url. The leading part of the first URL encountered is used for the result, other URL prefixes are discarded, permitting a primitive form of URL inheiritance.

Parameters

urlroot	root URL (often path to chroot, or NULL)
urlmdir	directory URL (often a directory, or NULL)
urlfile	file URL (often a file, or NULL)

Returns

expanded, merged, canonicalized path (malloc'ed)

rpmGetCwd()

char * rpmGetCwd

(

void

)

Like getcwd() but the result is malloced.

Returns

current working directory (malloc'ed)

rpmGetPath()

char * rpmGetPath	(	const char *	path,
			...
	)

Return (malloc'ed) expanded, canonicalized, file path.

Parameters

path	macro(s) to expand (NULL terminates list)

Returns

canonicalized path (malloc'ed)

rpmGlob()

int rpmGlob	(	const char *	pattern,
		int *	argcPtr,
		ARGV_t *	argvPtr
	)

Expand a glob pattern into matching paths, fail if nothing matches.

Parameters

	pattern	glob pattern
[out]	*argcPtr	no. of paths
[out]	*argvPtr	ARGV_t array of paths

Returns

0 on success

rpmGlobPath()

int rpmGlobPath	(	const char *	pattern,
		rpmglobFlags	flags,
		int *	argcPtr,
		ARGV_t *	argvPtr
	)

Expand a glob pattern into matching paths. When RPMGLOB_NOCHECK is specified, non-matching and non-glob patterns are returned as is.

Parameters

	pattern	glob pattern
	flags	bit(s) to control glob operation
[out]	*argcPtr	no. of paths
[out]	*argvPtr	ARGV_t array of paths

Returns

0 on success

rpmioMkpath()

int rpmioMkpath	(	const char *	path,
		mode_t	mode,
		uid_t	uid,
		gid_t	gid
	)

Insure that directories in path exist, creating as needed.

Parameters

path	directory path
mode	directory mode (if created)
uid	directory uid (if created), or -1 to skip
gid	directory uid (if created), or -1 to skip

Returns

0 on success, errno (or -1) on error

rpmMkdirs()

int rpmMkdirs	(	const char *	root,
		const char *	pathstr
	)

Create several directories (including parents if needed) in one go. Macros in pathstr will be expanded in the process.

Parameters

root	leading root directory (or NULL for none)
pathstr	list of directories separated with :

Returns

0 if all directories were successfully created (or already existed), non-zero otherwise

rpmMkTemp()

FD_t rpmMkTemp

(

char *

templ

)

Thin wrapper for mkstemp(3).

Parameters

templ

template for temporary filename

Returns

file handle or NULL on error

rpmMkTempFile()

FD_t rpmMkTempFile	(	const char *	prefix,
		char **	fn
	)

Return file handle for a temporaray file. A unique temporaray file path will be created in [prefix/]%{_tmppath} directory. The file name and the open file handle are returned.

Parameters

	prefix	leading part of temp file path
[out]	fn	temp file name (or NULL)

Returns

fdptr open file handle or NULL on error

rpmUnescape()

void rpmUnescape	(	char *	s,
		const char *	accept
	)

Unescape each char listed in accept by removing a backslash preceding it.

Parameters

s	string
accept	chars to unescape (NULL for all)