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instlib: Installation program generation

The installer libraries provide for building a program to install files, to verify (check) an installation, and to show what would be installed, from a single source. More...

Functions

int opendir (const char *dir)
int opensubdir (int dir, const char *subdir)
int d (int dir, const char *subdir, unsigned uid, unsigned gid, unsigned mode)
void cf (int dir, const char *file, unsigned uid, unsigned gid, unsigned mode, const char *srcfile)
void c (int dir, const char *file, unsigned uid, unsigned gid, unsigned mode)
void s (int dir, const char *file, const char *target)
void insthier (void)

Variables

const char * install_prefix

Detailed Description

The installer libraries provide for building a program to install files, to verify (check) an installation, and to show what would be installed, from a single source.

This single source is typically called insthier.c and contains a single routine also named insthier (so-named as it provides the installation hierarchy). The libraries provide the main function that calls insthier as well as all the necessary support functions.

Where given, uid and gid may be set to -1 if there is no need to force the installed UID and GID to a particular value. The dir argument is a directory number previously opened by opendir.


Function Documentation

void c int  dir,
const char *  file,
unsigned  uid,
unsigned  gid,
unsigned  mode
 

Copy a file from the source directory, retaining its name.

void cf int  dir,
const char *  file,
unsigned  uid,
unsigned  gid,
unsigned  mode,
const char *  srcfile
 

Copy a file from the source directory to a different name.

int d int  dir,
const char *  subdir,
unsigned  uid,
unsigned  gid,
unsigned  mode
 

Create a subdirectory.

void insthier void   ) 
 

The single function that the insthier.c source needs to define.

int opendir const char *  dir  ) 
 

Open a directory and provide a file handle reference for future operations.

int opensubdir int  dir,
const char *  subdir
 

Open a subdirectory of a directory already opened by opendir.

void s int  dir,
const char *  file,
const char *  target
 

Create a symbolic link.


Variable Documentation

const char* install_prefix
 

The directory prefix under which all files are placed.


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