src/mod/share.mod/uf_features.c File Reference

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Data Structures
struct	uff_list_struct
struct	uff_head_t
Typedefs
typedef struct uff_list_struct	uff_list_t
Functions
static void	uff_init (void)
static int	uff_expmem (void)
static uff_list_t *	uff_findentry_byflag (int flag)
static uff_list_t *	uff_findentry_byname (char *feature)
static void	uff_insert_entry (uff_list_t *nul)
static void	uff_remove_entry (uff_list_t *ul)
static void	uff_addfeature (uff_table_t *0)
static void	uff_addtable (uff_table_t *0)
static int	uff_delfeature (uff_table_t *0)
static void	uff_deltable (uff_table_t *0)
static void	uf_features_parse (int idx, char *par)
static char *	uf_features_dump (int idx)
static int	uf_features_check (int idx, char *par)
static int	uff_call_sending (int idx, char *user_file)
static int	uff_call_receiving (int idx, char *user_file)
static int	uff_ask_override_bots (int idx)
Variables
static uff_head_t	uff_list
static char	uff_sbuf [512]
static uff_table_t	internal_uff_table []

---

Typedef Documentation

typedef struct uff_list_struct uff_list_t

---

Function Documentation

static int uf_features_check	(	int	idx,
		char *	par
	)			[static]

Definition at line 283 of file uf_features.c.

References uff_table_t::ask_func, dcc, dprintf, uff_list_struct::entry, uff_table_t::flag, LOG_BOTS, nfree, nmalloc, NULL, putlog, uff_findentry_byname(), uff_sbuf, and zapfbot.

Referenced by share_feats().

{
  char *buf, *s, *p;
  uff_list_t *ul;

  uff_sbuf[0] = 0; /* Reset static buffer  */
  p = s = buf = nmalloc(strlen(par) + 1); /* Allocate temp buffer */
  strcpy(buf, par);

  /* Clear all currently set features. */
  dcc[idx].u.bot->uff_flags = 0;

  /* Parse string */
  while ((s = strchr(s, ' ')) != NULL) {
    *s = '\0';

    /* Is the feature available and active? */
    ul = uff_findentry_byname(p);
    if (ul && (ul->entry->ask_func == NULL || ul->entry->ask_func(idx)))
      dcc[idx].u.bot->uff_flags |= ul->entry->flag; /* Set flag */
    else {
      /* It isn't, and our hub wants to use it! This either happens
       * because the hub doesn't look at the features we suggested to
       * use or because our admin changed the flags, so that formerly
       * active features are now deactivated.
       *
       * In any case, we abort user file sharing.
       */
      putlog(LOG_BOTS, "*", "Bot %s tried unsupported feature!", dcc[idx].nick);
      dprintf(idx, "s e Attempt to use an unsupported feature\n");
      zapfbot(idx);

      nfree(buf);
      return 0;
    }
    p = ++s;
  }
  nfree(buf);
  return 1;
}

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static char* uf_features_dump

(

int

idx

)

[static]

Definition at line 270 of file uf_features.c.

References uff_table_t::ask_func, uff_list_struct::entry, uff_table_t::feature, uff_list_struct::next, NULL, uff_head_t::start, and uff_sbuf.

Referenced by share_userfileq().

{
  uff_list_t *ul;

  uff_sbuf[0] = 0;
  for (ul = uff_list.start; ul; ul = ul->next)
    if (ul->entry->ask_func == NULL || ul->entry->ask_func(idx)) {
      strcat(uff_sbuf, ul->entry->feature); /* Add feature to list  */
      strcat(uff_sbuf, " ");
    }
  return uff_sbuf;
}

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static void uf_features_parse	(	int	idx,
		char *	par
	)			[static]

Definition at line 236 of file uf_features.c.

References uff_table_t::ask_func, dcc, dprintf, uff_list_struct::entry, uff_table_t::feature, uff_table_t::flag, nfree, nmalloc, NULL, uff_findentry_byname(), and uff_sbuf.

Referenced by share_ufyes().

{
  char *buf, *s, *p;
  uff_list_t *ul;

  uff_sbuf[0] = 0; /* Reset static buffer  */
  p = s = buf = nmalloc(strlen(par) + 1); /* Allocate temp buffer */
  strcpy(buf, par);

  /* Clear all currently set features. */
  dcc[idx].u.bot->uff_flags = 0;

  /* Parse string */
  while ((s = strchr(s, ' ')) != NULL) {
    *s = '\0';

    /* Is the feature available and active? */
    ul = uff_findentry_byname(p);
    if (ul && (ul->entry->ask_func == NULL || ul->entry->ask_func(idx))) {
      dcc[idx].u.bot->uff_flags |= ul->entry->flag; /* Set flag */
      strcat(uff_sbuf, ul->entry->feature); /* Add feature to list */
      strcat(uff_sbuf, " ");
    }
    p = ++s;
  }
  nfree(buf);

  /* Send response string                                               */
  if (uff_sbuf[0])
    dprintf(idx, "s feats %s\n", uff_sbuf);
}

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static void uff_addfeature

(

uff_table_t *

0

)

[static]

Definition at line 173 of file uf_features.c.

References uff_list_struct::entry, uff_table_t::feature, uff_table_t::flag, LOG_MISC, nmalloc, putlog, uff_findentry_byflag(), uff_findentry_byname(), and uff_insert_entry().

Referenced by uff_addtable().

{
  uff_list_t *ul;

  if (uff_findentry_byname(ut->feature)) {
    putlog(LOG_MISC, "*", "(!) share: same feature name used twice: %s",
           ut->feature);
    return;
  }
  ul = uff_findentry_byflag(ut->flag);
  if (ul) {
    putlog(LOG_MISC, "*", "(!) share: feature flag %d used twice by %s and %s",
           ut->flag, ut->feature, ul->entry->feature);
    return;
  }
  ul = nmalloc(sizeof(uff_list_t));
  ul->entry = ut;
  uff_insert_entry(ul);
}

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static void uff_addtable

(

uff_table_t *

0

)

[static]

Definition at line 195 of file uf_features.c.

References uff_table_t::feature, and uff_addfeature().

Referenced by compress_start(), and share_start().

{
  if (!ut)
    return;
  for (; ut->feature; ++ut)
    uff_addfeature(ut);
}

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static int uff_ask_override_bots

(

int

idx

)

[static]

Definition at line 364 of file uf_features.c.

References overr_local_bots.

{
  if (overr_local_bots)
    return 1;
  else
    return 0;
}

static int uff_call_receiving	(	int	idx,
		char *	user_file
	)			[static]

Definition at line 343 of file uf_features.c.

References dcc, uff_head_t::end, uff_list_struct::entry, uff_table_t::flag, uff_list_struct::prev, and uff_table_t::rcv.

Referenced by finish_share().

{
  uff_list_t *ul;

  for (ul = uff_list.end; ul; ul = ul->prev)
    if (ul->entry && ul->entry->rcv &&
        (dcc[idx].u.bot->uff_flags & ul->entry->flag))
      if (!(ul->entry->rcv(idx, user_file)))
        return 0; /* Failed! */
  return 1;
}

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static int uff_call_sending	(	int	idx,
		char *	user_file
	)			[static]

Definition at line 327 of file uf_features.c.

References dcc, uff_list_struct::entry, uff_table_t::flag, uff_list_struct::next, uff_table_t::snd, and uff_head_t::start.

Referenced by start_sending_users().

{
  uff_list_t *ul;

  for (ul = uff_list.start; ul; ul = ul->next)
    if (ul->entry && ul->entry->snd &&
        (dcc[idx].u.bot->uff_flags & ul->entry->flag))
      if (!(ul->entry->snd(idx, user_file)))
        return 0; /* Failed! */
  return 1;
}

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static int uff_delfeature

(

uff_table_t *

0

)

[static]

Definition at line 205 of file uf_features.c.

References uff_list_struct::entry, uff_table_t::feature, uff_list_struct::next, nfree, uff_head_t::start, and uff_remove_entry().

Referenced by uff_deltable().

{
  uff_list_t *ul;

  for (ul = uff_list.start; ul; ul = ul->next)
    if (!strcmp(ul->entry->feature, ut->feature)) {
      uff_remove_entry(ul);
      nfree(ul);
      return 1;
    }
  return 0;
}

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static void uff_deltable

(

uff_table_t *

0

)

[static]

Definition at line 220 of file uf_features.c.

References uff_table_t::feature, and uff_delfeature().

Referenced by compress_close(), and share_close().

{
  if (!ut)
    return;
  for (; ut->feature; ++ut)
    (int) uff_delfeature(ut);
}

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static int uff_expmem

(

void

)

[static]

Definition at line 90 of file uf_features.c.

References uff_list_struct::next, and uff_head_t::start.

Referenced by share_expmem().

{
  uff_list_t *ul;
  int tot = 0;

  for (ul = uff_list.start; ul; ul = ul->next)
    tot += sizeof(uff_list_t);
  return tot;
}

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static uff_list_t* uff_findentry_byflag

(

int

flag

)

[static]

Definition at line 104 of file uf_features.c.

References uff_list_struct::entry, uff_table_t::flag, uff_list_struct::next, NULL, and uff_head_t::start.

Referenced by uff_addfeature().

{
  uff_list_t *ul;

  for (ul = uff_list.start; ul; ul = ul->next)
    if (ul->entry->flag & flag)
      return ul;
  return NULL;
}

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static uff_list_t* uff_findentry_byname

(

char *

feature

)

[static]

Definition at line 117 of file uf_features.c.

References uff_list_struct::entry, uff_table_t::feature, uff_list_struct::next, NULL, and uff_head_t::start.

Referenced by uf_features_check(), uf_features_parse(), and uff_addfeature().

{
  uff_list_t *ul;

  for (ul = uff_list.start; ul; ul = ul->next)
    if (!strcmp(ul->entry->feature, feature))
      return ul;
  return NULL;
}

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static void uff_init

(

void

)

[static]

Definition at line 83 of file uf_features.c.

References egg_bzero.

Referenced by share_start().

{
  egg_bzero(&uff_list, sizeof(uff_head_t));
}

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static void uff_insert_entry

(

uff_list_t *

nul

)

[static]

Definition at line 129 of file uf_features.c.

References uff_head_t::end, uff_list_struct::entry, uff_list_struct::next, NULL, uff_list_struct::prev, uff_table_t::priority, and uff_head_t::start.

Referenced by uff_addfeature().

{
  uff_list_t *ul, *lul = NULL;

  ul = uff_list.start;
  while (ul && ul->entry->priority < nul->entry->priority) {
    lul = ul;
    ul = ul->next;
  }

  nul->prev = NULL;
  nul->next = NULL;
  if (lul) {
    if (lul->next)
      lul->next->prev = nul;
    nul->next = lul->next;
    nul->prev = lul;
    lul->next = nul;
  } else if (ul) {
    uff_list.start->prev = nul;
    nul->next = uff_list.start;
    uff_list.start = nul;
  } else
    uff_list.start = nul;
  if (!nul->next)
    uff_list.end = nul;
}

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static void uff_remove_entry

(

uff_list_t *

ul

)

[static]

Definition at line 159 of file uf_features.c.

References uff_head_t::end, uff_list_struct::next, uff_list_struct::prev, and uff_head_t::start.

Referenced by uff_delfeature().

{
  if (!ul->next)
    uff_list.end = ul->prev;
  else
    ul->next->prev = ul->prev;
  if (!ul->prev)
    uff_list.start = ul->next;
  else
    ul->prev->next = ul->next;
}

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---

Variable Documentation

uff_table_t internal_uff_table[] [static]

Initial value:

 {
  {"overbots",  0x000001  , uff_ask_override_bots, 0,  0 ,  0 },
  {"invites",   0x000002  ,    0 ,                  0,  0 ,  0 },
  {"exempts",   0x000004  ,    0 ,                  0,  0 ,  0 },
  { 0 ,       0,             0 ,                  0,  0 ,  0 }
}

Definition at line 377 of file uf_features.c.

Referenced by share_close(), and share_start().

uff_head_t uff_list [static]

Definition at line 75 of file uf_features.c.

char uff_sbuf[512] [static]

Definition at line 76 of file uf_features.c.

Referenced by uf_features_check(), uf_features_dump(), and uf_features_parse().