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/* l_src.c - sources list structure.
This is free and unencumbered software released into the public domain.
For more information, please refer to <http://unlicense.org>. */
#include "defs.h"
#include <stdbool.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "debug.h"
#include "l_list.h"
#include "l_src.h"
void
source_entry_clear
(
struct source_entry_t
*self
)
{
list_entry_clear
(&self
->list_entry
);
self
->real
= NULL
;
self
->base
= NULL
;
self
->user
= NULL
;
self
->flags
= 0;
included_files_clear
(&self
->included
);
}
void
source_entry_free
(
struct source_entry_t
*self
)
{
list_entry_free
(&self
->list_entry
);
if (self
->real
)
free (self
->real
);
if (self
->base
)
free (self
->base
);
if (self
->user
)
free (self
->user
);
included_files_free
(&self
->included
);
source_entry_clear
(self
);
}
void
sources_clear
(
struct sources_t
*self
)
{
list_clear
(&self
->list
);
}
bool
sources_add
(
struct sources_t
*self
,
const char *real
,
const char *base
,
const char *user
,
unsigned flags
,
struct source_entry_t
**result
)
{
bool ok
;
struct source_entry_t
*p
;
char *p_real
, *p_base
, *p_user
;
#if DEBUG == 1
unsigned i
;
#endif // DEBUG == 1
ok
= false;
p
= (struct source_entry_t
*) NULL
;
p_real
= (char *) NULL
;
p_base
= (char *) NULL
;
p_user
= (char *) NULL
;
if (!self
|| !real
|| !base
|| !user
)
{
_DBG
("Bad arguments.");
goto _local_exit
;
}
p
= malloc (sizeof (struct source_entry_t
));
if (!p
)
{
_perror
("malloc");
goto _local_exit
;
}
p_real
= strdup
(real
);
if (!p_real
)
{
_perror
("strdup");
goto _local_exit
;
}
p_base
= strdup
(base
);
if (!p_base
)
{
_perror
("strdup");
goto _local_exit
;
}
p_user
= strdup
(user
);
if (!p_user
)
{
_perror
("strdup");
goto _local_exit
;
}
source_entry_clear
(p
);
p
->real
= p_real
;
p
->base
= p_base
;
p
->user
= p_user
;
p
->flags
= flags
;
#if DEBUG == 1
i
= self
->list.
count;
#endif // DEBUG == 1
list_add_entry
((struct list_t
*) self
, (struct list_entry_t
*) p
);
_DBG_
("Added new source #%u:", i
);
_DBG_
("Source #%u: flags = 0x%x", i
, p
->flags
);
_DBG_
("Source #%u: user file = '%s'", i
, p
->user
);
_DBG_
("Source #%u: base path = '%s'", i
, p
->base
);
_DBG_
("Source #%u: real file = '%s'", i
, p
->real
);
ok
= true;
_local_exit
:
if (!ok
)
{
if (p
)
{
free (p
);
p
= (struct source_entry_t
*) NULL
;
}
if (p_real
)
free (p_real
);
if (p_base
)
free (p_base
);
if (p_user
)
free (p_user
);
}
if (result
)
*result
= p
;
return !ok
;
}
bool
sources_find_real
(
struct sources_t
*self
,
const char *real
,
struct source_entry_t
**result
)
{
bool ok
;
struct source_entry_t
*p
;
unsigned i
;
ok
= false;
p
= (struct source_entry_t
*) NULL
;
if (!self
|| !real
)
{
_DBG
("Bad arguments.");
goto _local_exit
;
}
p
= (struct source_entry_t
*) self
->list.
first;
i
= 0;
while (p
)
{
if (!strcmp (p
->real
, real
))
{
// Success
_DBG_
("Found user file '%s' (real file '%s') at #%u.", p
->user
, p
->real
, i
);
ok
= true;
goto _local_exit
;
}
p
= (struct source_entry_t
*) p
->list_entry.
next;
i
++;
}
// Fail
//p = (struct source_entry_t *) NULL;
_DBG_
("Failed to find real file '%s'.", real
);
_local_exit
:
if (result
)
*result
= p
;
return !ok
;
}
bool
sources_find_user
(
struct sources_t
*self
,
const char *user
,
struct source_entry_t
**result
)
{
bool ok
;
struct source_entry_t
*p
;
unsigned i
;
ok
= false;
p
= (struct source_entry_t
*) NULL
;
if (!self
|| !user
)
{
_DBG
("Bad arguments.");
goto _local_exit
;
}
p
= (struct source_entry_t
*) self
->list.
first;
i
= 0;
while (p
)
{
if (!strcmp (p
->user
, user
))
{
// Success
_DBG_
("Found user file '%s' (real file '%s') at #%u.", p
->user
, p
->real
, i
);
ok
= true;
goto _local_exit
;
}
p
= (struct source_entry_t
*) p
->list_entry.
next;
i
++;
}
// Fail
//p = (struct source_entry_t *) NULL;
_DBG_
("Failed to find user file '%s'.", user
);
_local_exit
:
if (result
)
*result
= p
;
return !ok
;
}
void
sources_free
(
struct sources_t
*self
)
{
struct source_entry_t
*p
, *n
;
p
= (struct source_entry_t
*) self
->list.
first;
while (p
)
{
n
= (struct source_entry_t
*) p
->list_entry.
next;
source_entry_free
(p
);
free (p
);
p
= n
;
}
sources_clear
(self
);
}