remove vector remains
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06c96761d5
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683a354196
@ -43,7 +43,6 @@ tinyproxy_SOURCES = \
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text.c text.h \
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main.c main.h \
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utils.c utils.h \
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vector.c vector.h \
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upstream.c upstream.h \
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basicauth.c basicauth.h \
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base64.c base64.h \
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@ -23,7 +23,7 @@
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#define TINYPROXY_CONF_H
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#include "hsearch.h"
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#include "vector.h"
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#include "sblist.h"
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#include "acl.h"
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/*
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@ -43,7 +43,7 @@
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#include "stats.h"
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#include "text.h"
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#include "utils.h"
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#include "vector.h"
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#include "sblist.h"
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#include "reverse-proxy.h"
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#include "transparent-proxy.h"
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#include "upstream.h"
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214
src/vector.c
214
src/vector.c
@ -1,214 +0,0 @@
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/* tinyproxy - A fast light-weight HTTP proxy
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* Copyright (C) 2002 Robert James Kaes <rjkaes@users.sourceforge.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* A vector implementation. The vector can be of an arbitrary length, and
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* the data for each entry is an lump of data (the size is stored in the
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* vector.)
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*/
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#include "main.h"
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#include "heap.h"
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#include "vector.h"
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/*
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* These structures are the storage for the "vector". Entries are
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* stored in struct vectorentry_s (the data and the length), and the
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* "vector" structure is implemented as a linked-list. The struct
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* vector_s stores a pointer to the first vector (vector[0]) and a
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* count of the number of entries (or how long the vector is.)
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*/
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struct vectorentry_s {
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void *data;
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size_t len;
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struct vectorentry_s *next;
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};
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struct vector_s {
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size_t num_entries;
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struct vectorentry_s *head;
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struct vectorentry_s *tail;
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};
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/*
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* Create an vector. The vector initially has no elements and no
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* storage has been allocated for the entries.
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*
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* A NULL is returned if memory could not be allocated for the
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* vector.
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*/
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vector_t vector_create (void)
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{
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vector_t vector;
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vector = (vector_t) safemalloc (sizeof (struct vector_s));
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if (!vector)
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return NULL;
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vector->num_entries = 0;
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vector->head = vector->tail = NULL;
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return vector;
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}
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/*
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* Deletes an vector. All the entries when this function is run.
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*
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* Returns: 0 on success
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* negative if a NULL vector is supplied
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*/
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int vector_delete (vector_t vector)
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{
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struct vectorentry_s *ptr, *next;
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if (!vector)
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return -EINVAL;
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ptr = vector->head;
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while (ptr) {
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next = ptr->next;
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safefree (ptr->data);
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safefree (ptr);
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ptr = next;
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}
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safefree (vector);
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return 0;
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}
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/*
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* Appends an entry into the vector. The entry is an arbitrary
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* collection of bytes of _len_ octets. The data is copied into the
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* vector, so the original data must be freed to avoid a memory leak.
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* The "data" must be non-NULL and the "len" must be greater than zero.
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* "pos" is either 0 to prepend the data, or 1 to append the data.
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*
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* Returns: 0 on success
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* negative number if there are errors
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*/
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typedef enum {
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INSERT_PREPEND,
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INSERT_APPEND
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} vector_pos_t;
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static int
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vector_insert (vector_t vector,
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void *data,
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size_t len,
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vector_pos_t pos)
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{
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struct vectorentry_s *entry;
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if (!vector || !data || len <= 0 ||
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(pos != INSERT_PREPEND && pos != INSERT_APPEND))
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return -EINVAL;
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entry =
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(struct vectorentry_s *) safemalloc (sizeof (struct vectorentry_s));
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if (!entry)
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return -ENOMEM;
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entry->data = safemalloc (len);
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if (!entry->data) {
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safefree (entry);
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return -ENOMEM;
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}
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memcpy (entry->data, data, len);
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entry->len = len;
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entry->next = NULL;
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/* If there is no head or tail, create them */
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if (!vector->head && !vector->tail)
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vector->head = vector->tail = entry;
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else if (pos == INSERT_PREPEND) {
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/* prepend the entry */
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entry->next = vector->head;
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vector->head = entry;
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} else {
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/* append the entry */
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vector->tail->next = entry;
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vector->tail = entry;
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}
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vector->num_entries++;
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return 0;
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}
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/*
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* The following two function are used to make the API clearer. As you
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* can see they simply call the vector_insert() function with appropriate
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* arguments.
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*/
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int vector_append (vector_t vector, void *data, size_t len)
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{
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return vector_insert (vector, data, len, INSERT_APPEND);
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}
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int vector_prepend (vector_t vector, void *data, size_t len)
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{
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return vector_insert (vector, data, len, INSERT_PREPEND);
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}
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/*
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* A pointer to the data at position "pos" (zero based) is returned.
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* If the vector is out of bound, data is set to NULL.
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*
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* Returns: negative upon an error
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* length of data if position is valid
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*/
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void *vector_getentry (vector_t vector, size_t pos, size_t * size)
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{
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struct vectorentry_s *ptr;
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size_t loc;
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if (!vector || pos >= vector->num_entries)
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return NULL;
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loc = 0;
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ptr = vector->head;
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while (loc != pos) {
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ptr = ptr->next;
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loc++;
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}
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if (size)
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*size = ptr->len;
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return ptr->data;
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}
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/*
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* Returns the number of entries (or the length) of the vector.
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*
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* Returns: negative if vector is not valid
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* positive length of vector otherwise
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*/
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ssize_t vector_length (vector_t vector)
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{
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if (!vector)
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return -EINVAL;
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return vector->num_entries;
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}
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77
src/vector.h
77
src/vector.h
@ -1,77 +0,0 @@
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/* tinyproxy - A fast light-weight HTTP proxy
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* Copyright (C) 2002 Robert James Kaes <rjkaes@users.sourceforge.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* See 'vector.c' for detailed information. */
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#ifndef _VECTOR_H
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#define _VECTOR_H
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#include <unistd.h>
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/*
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* We're using a typedef here to "hide" the implementation details of the
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* vector. Sure, it's a pointer, but the struct is hidden in the C file.
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* So, just use the vector_t like it's a cookie. :)
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*/
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typedef struct vector_s *vector_t;
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/*
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* vector_create() takes no arguments.
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* vector_delete() is self explanatory.
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*/
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extern vector_t vector_create (void);
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extern int vector_delete (vector_t vector);
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/*
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* When you insert a piece of data into the vector, the data will be
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* duplicated, so you must free your copy if it was created on the heap.
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* The data must be non-NULL and the length must be greater than zero.
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*
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* Returns: negative on error
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* 0 upon successful insert.
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*/
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extern int vector_append (vector_t vector, void *data, size_t len);
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extern int vector_prepend (vector_t vector, void *data, size_t len);
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/*
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* A pointer to the data at position "pos" (zero based) is returned and the
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* size pointer contains the length of the data stored.
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*
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* The pointer points to the actual data in the vector, so you have
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* the power to modify the data, but do it responsibly since the
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* library doesn't take any steps to prevent you from messing up the
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* vector. (A better rule is, don't modify the data since you'll
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* likely mess up the "length" parameter of the data.) However, DON'T
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* try to realloc or free the data; doing so will break the vector.
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*
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* If "size" is NULL the size of the data is not returned.
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*
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* Returns: NULL on error
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* valid pointer to data
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*/
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extern void *vector_getentry (vector_t vector, size_t pos, size_t * size);
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/*
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* Returns the number of enteries (or the length) of the vector.
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*
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* Returns: negative if vector is not valid
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* positive length of vector otherwise
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*/
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extern ssize_t vector_length (vector_t vector);
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#endif /* _VECTOR_H */
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