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cower.c
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/* Copyright (c) 2010-2014 Dave Reisner
*
* cower.c
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/* glibc */
#include <ctype.h>
#include <errno.h>
#include <fnmatch.h>
#include <getopt.h>
#include <locale.h>
#include <pthread.h>
#include <pwd.h>
#include <regex.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <wchar.h>
#include <wordexp.h>
/* external libs */
#include <alpm.h>
#include <archive.h>
#include <archive_entry.h>
#include <curl/curl.h>
#include <openssl/crypto.h>
#include <yajl/yajl_parse.h>
/* macros */
#define UNUSED __attribute__((unused))
#define NCFLAG(val, flag) (!cfg.color && (val)) ? (flag) : ""
#define _cleanup_(x) __attribute__((cleanup(x)))
#define _cleanup_free_ _cleanup_(freep)
static inline void freep(void *p) { free(*(void**) p); }
#ifndef PACMAN_ROOT
#define PACMAN_ROOT "/"
#endif
#ifndef PACMAN_DBPATH
#define PACMAN_DBPATH "/var/lib/pacman"
#endif
#ifndef PACMAN_CONFIG
#define PACMAN_CONFIG "/etc/pacman.conf"
#endif
#define AUR_BASE_URL "https://aur.archlinux.org"
#define AUR_PKG_URL_FORMAT AUR_BASE_URL "/packages/"
#define AUR_RPC_URL AUR_BASE_URL "/rpc.php?type=%s&arg=%s&v=3"
#define NC "\033[0m"
#define BOLD "\033[1m"
#define BLACK "\033[0;30m"
#define RED "\033[0;31m"
#define GREEN "\033[0;32m"
#define YELLOW "\033[0;33m"
#define BLUE "\033[0;34m"
#define MAGENTA "\033[0;35m"
#define CYAN "\033[0;36m"
#define WHITE "\033[0;37m"
#define BOLDBLACK "\033[1;30m"
#define BOLDRED "\033[1;31m"
#define BOLDGREEN "\033[1;32m"
#define BOLDYELLOW "\033[1;33m"
#define BOLDBLUE "\033[1;34m"
#define BOLDMAGENTA "\033[1;35m"
#define BOLDCYAN "\033[1;36m"
#define BOLDWHITE "\033[1;37m"
#define BRIEF_ERR "E"
#define BRIEF_WARN "W"
#define BRIEF_OK "S"
/* typedefs and objects */
typedef enum __loglevel_t {
LOG_INFO = 1,
LOG_ERROR = (1 << 1),
LOG_WARN = (1 << 2),
LOG_DEBUG = (1 << 3),
LOG_VERBOSE = (1 << 4),
LOG_BRIEF = (1 << 5)
} loglevel_t;
typedef enum __operation_t {
OP_SEARCH = 1,
OP_INFO = (1 << 1),
OP_DOWNLOAD = (1 << 2),
OP_UPDATE = (1 << 3),
OP_MSEARCH = (1 << 4)
} operation_t;
enum {
OP_DEBUG = 1000,
OP_FORMAT,
OP_SORT,
OP_RSORT,
OP_IGNOREPKG,
OP_IGNOREREPO,
OP_LISTDELIM,
OP_THREADS,
OP_TIMEOUT,
OP_VERSION,
OP_NOIGNOREOOD
};
enum {
SORT_FORWARD = 1,
SORT_REVERSE = -1
};
enum json_key_type_t {
JSON_KEY_METADATA,
JSON_KEY_PACKAGE_ATTR,
};
typedef enum json_key_type_t json_key_type_t;
struct key_t {
const char *name;
json_key_type_t type;
int multivalued;
size_t offset;
};
struct strings_t {
const char *error;
const char *warn;
const char *info;
const char *pkg;
const char *repo;
const char *url;
const char *ood;
const char *utd;
const char *nc;
};
struct aurpkg_t {
char *desc;
char *maint;
char *name;
char *pkgbase;
char *url;
char *urlpath;
char *ver;
int cat;
int id;
int pkgbaseid;
int ood;
int votes;
time_t firstsub;
time_t lastmod;
alpm_list_t *licenses;
alpm_list_t *conflicts;
alpm_list_t *depends;
alpm_list_t *groups;
alpm_list_t *makedepends;
alpm_list_t *optdepends;
alpm_list_t *checkdepends;
alpm_list_t *provides;
alpm_list_t *replaces;
};
typedef struct aurpkg_t aurpkg_t;
struct json_parser_t {
const struct key_t *key;
int depth;
int resultcount;
alpm_list_t *pkglist;
aurpkg_t aurpkg;
char *error;
};
typedef struct json_parser_t json_parser_t;
struct response_t {
char *data;
size_t size;
};
struct task_t {
void *(*threadfn)(CURL*, void*);
void (*printfn)(aurpkg_t*);
};
/* function prototypes */
static inline int streq(const char *, const char *);
static inline int startswith(const char *, const char *);
static alpm_list_t *alpm_find_foreign_pkgs(void);
static alpm_handle_t *alpm_init(void);
static int alpm_pkg_is_foreign(alpm_pkg_t*);
static const char *alpm_provides_pkg(const char*);
static int archive_extract_file(const struct response_t*);
static int aurpkg_cmpver(const aurpkg_t *pkg1, const aurpkg_t *pkg2);
static int aurpkg_cmpmaint(const aurpkg_t *pkg1, const aurpkg_t *pkg2);
static int aurpkg_cmpvotes(const aurpkg_t *pkg1, const aurpkg_t *pkg2);
static int aurpkg_cmpood(const aurpkg_t *pkg1, const aurpkg_t *pkg2);
static int aurpkg_cmplastmod(const aurpkg_t *pkg1, const aurpkg_t *pkg2);
static int aurpkg_cmpfirstsub(const aurpkg_t *pkg1, const aurpkg_t *pkg2);
static int aurpkg_cmpname(const aurpkg_t *pkg1, const aurpkg_t *pkg2);
static int aurpkg_cmp(const void*, const void*);
static aurpkg_t *aurpkg_dup(const aurpkg_t*);
static void aurpkg_free(void*);
static void aurpkg_free_inner(aurpkg_t*);
static int globcompare(const void *a, const void *b);
static const char *category_id_to_string(size_t id);
static CURL *curl_init_easy_handle(CURL*);
static size_t curl_write_response(void*, size_t, size_t, void*);
static int cwr_asprintf(char**, const char*, ...) __attribute__((format(printf,2,3)));
static int cwr_fprintf(FILE*, loglevel_t, const char*, ...) __attribute__((format(printf,3,4)));
static int cwr_printf(loglevel_t, const char*, ...) __attribute__((format(printf,2,3)));
static int cwr_vfprintf(FILE*, loglevel_t, const char*, va_list) __attribute__((format(printf,3,0)));
static void *download(CURL *curl, void*);
static alpm_list_t *filter_results(alpm_list_t*);
static char *get_file_as_buffer(const char*);
static int getcols(void);
static int get_config_path(char *config_path, size_t pathlen);
static void indentprint(const char*, int);
static int json_end_map(void*);
static void *json_get_valueptr(json_parser_t *parser);
static int json_integer(void *ctx, long long);
static int json_map_key(void*, const unsigned char*, size_t);
static int json_start_map(void*);
static int json_string(void*, const unsigned char*, size_t);
static int json_string_multivalued(alpm_list_t **dest, const unsigned char *data, size_t size);
static int json_string_singlevalued(char **dest, const unsigned char *data, size_t size);
static int keycmp(const void *v1, const void *v2);
static alpm_list_t *load_targets_from_files(alpm_list_t *files);
static void openssl_crypto_cleanup(void);
static void openssl_crypto_init(void);
static void openssl_thread_id(CRYPTO_THREADID *id);
static void openssl_thread_cb(int, int, const char*, int);
static alpm_list_t *parse_bash_array(alpm_list_t*, char*);
static int parse_configfile(void);
static int parse_options(int, char*[]);
static int parse_keyname(char*);
static int pkg_is_binary(const char *pkg);
static void pkgbuild_get_depends(char*, alpm_list_t**);
static int print_escaped(const char*);
static void print_extinfo_list(alpm_list_t*, const char*, const char*, int);
static void print_pkg_formatted(aurpkg_t*);
static void print_pkg_info(aurpkg_t*);
static void print_pkg_search(aurpkg_t*);
static void print_results(alpm_list_t*, void (*)(aurpkg_t*));
static int read_targets_from_file(FILE *in, alpm_list_t **targets);
static void resolve_one_dep(CURL *curl, const char *depend);
static int resolve_pkg_dependencies(CURL*, aurpkg_t *package);
static int set_working_dir(void);
static int strings_init(void);
static const struct key_t *string_to_key(const unsigned char *key, size_t len);
static size_t strtrim(char*);
static void *task_download(CURL*, void*);
static void *task_query(CURL*, void*);
static void *task_update(CURL*, void*);
static void *thread_pool(void*);
static void usage(void);
static void version(void);
static size_t yajl_parse_stream(void*, size_t, size_t, void*);
/* runtime configuration */
static struct {
char *dlpath;
const char *delim;
const char *format;
operation_t opmask;
loglevel_t logmask;
short color;
short ignoreood;
short sortorder;
int force:1;
int getdeps:1;
int quiet:1;
int skiprepos:1;
int frompkgbuild:1;
int maxthreads;
long timeout;
int (*sort_fn) (const aurpkg_t*, const aurpkg_t*);
alpm_list_t *targets;
struct {
alpm_list_t *pkgs;
alpm_list_t *repos;
} ignore;
} cfg;
/* globals */
static alpm_handle_t *pmhandle;
static alpm_db_t *db_local;
static alpm_list_t *workq;
static pthread_mutex_t *openssl_lock;
static pthread_mutex_t listlock = PTHREAD_MUTEX_INITIALIZER;
static const int kUnset = -1;
static const int kThreadDefault = 10;
static const int kInfoIndent = 17;
static const int kSearchIndent = 4;
static const int kRegexOpts = REG_ICASE|REG_EXTENDED|REG_NOSUB|REG_NEWLINE;
static const long kTimeoutDefault = 10;
static const char kListDelim[] = " ";
static const char kCowerUserAgent[] = "cower/" COWER_VERSION;
static const char kRegexChars[] = "^.+*?$[](){}|\\";
static yajl_callbacks callbacks = {
NULL, /* null */
NULL, /* boolean */
json_integer, /* integer */
NULL, /* double */
NULL, /* number */
json_string, /* string */
json_start_map, /* start_map */
json_map_key, /* map_key */
json_end_map, /* end_map */
NULL, /* start_array */
NULL, /* end_array */
};
static char const *digits = "0123456789";
static char const *printf_flags = "'-+ #0I";
static const char *aur_cat[] = { NULL, "None", "daemons", "devel", "editors",
"emulators", "games", "gnome", "i18n", "kde", "lib",
"modules", "multimedia", "network", "office",
"science", "system", "x11", "xfce", "kernels", "fonts" };
/* list must be sorted by the string value */
static const struct key_t json_keys[] = {
{ "CategoryID", JSON_KEY_PACKAGE_ATTR, 0, offsetof(aurpkg_t, cat) },
{ "CheckDepends", JSON_KEY_PACKAGE_ATTR, 1, offsetof(aurpkg_t, checkdepends) },
{ "Conflicts", JSON_KEY_PACKAGE_ATTR, 1, offsetof(aurpkg_t, conflicts) },
{ "Depends", JSON_KEY_PACKAGE_ATTR, 1, offsetof(aurpkg_t, depends) },
{ "Description", JSON_KEY_PACKAGE_ATTR, 0, offsetof(aurpkg_t, desc) },
{ "FirstSubmitted", JSON_KEY_PACKAGE_ATTR, 0, offsetof(aurpkg_t, firstsub) },
{ "Groups", JSON_KEY_PACKAGE_ATTR, 1, offsetof(aurpkg_t, groups) },
{ "ID", JSON_KEY_PACKAGE_ATTR, 0, offsetof(aurpkg_t, id) },
{ "LastModified", JSON_KEY_PACKAGE_ATTR, 0, offsetof(aurpkg_t, lastmod) },
{ "License", JSON_KEY_PACKAGE_ATTR, 1, offsetof(aurpkg_t, licenses) },
{ "Maintainer", JSON_KEY_PACKAGE_ATTR, 0, offsetof(aurpkg_t, maint) },
{ "MakeDepends", JSON_KEY_PACKAGE_ATTR, 1, offsetof(aurpkg_t, makedepends) },
{ "Name", JSON_KEY_PACKAGE_ATTR, 0, offsetof(aurpkg_t, name) },
{ "NumVotes", JSON_KEY_PACKAGE_ATTR, 0, offsetof(aurpkg_t, votes) },
{ "OptDepends", JSON_KEY_PACKAGE_ATTR, 1, offsetof(aurpkg_t, optdepends) },
{ "OutOfDate", JSON_KEY_PACKAGE_ATTR, 0, offsetof(aurpkg_t, ood) },
{ "PackageBase", JSON_KEY_PACKAGE_ATTR, 0, offsetof(aurpkg_t, pkgbase) },
{ "PackageBaseID", JSON_KEY_PACKAGE_ATTR, 0, offsetof(aurpkg_t, pkgbaseid) },
{ "Provides", JSON_KEY_PACKAGE_ATTR, 1, offsetof(aurpkg_t, provides) },
{ "Replaces", JSON_KEY_PACKAGE_ATTR, 1, offsetof(aurpkg_t, replaces) },
{ "URL", JSON_KEY_PACKAGE_ATTR, 0, offsetof(aurpkg_t, url) },
{ "URLPath", JSON_KEY_PACKAGE_ATTR, 0, offsetof(aurpkg_t, urlpath) },
{ "Version", JSON_KEY_PACKAGE_ATTR, 0, offsetof(aurpkg_t, ver) },
{ "error", JSON_KEY_METADATA, 0, offsetof(json_parser_t, error) },
{ "resultcount", JSON_KEY_METADATA, 0, offsetof(json_parser_t, resultcount) },
{ "results", JSON_KEY_METADATA, 0, 0 },
};
static struct strings_t colstr = {
.error = "error:",
.warn = "warning:",
.info = "::",
.pkg = "",
.repo = "",
.url = "",
.ood = "",
.utd = "",
.nc = ""
};
int streq(const char *s1, const char *s2)
{
return strcmp(s1, s2) == 0;
}
int startswith(const char *s1, const char *s2)
{
return strncmp(s1, s2, strlen(s2)) == 0;
}
alpm_handle_t *alpm_init(void)
{
FILE *fp;
char line[PATH_MAX];
char *ptr, *section = NULL;
enum _alpm_errno_t err;
cwr_printf(LOG_DEBUG, "initializing alpm\n");
pmhandle = alpm_initialize(PACMAN_ROOT, PACMAN_DBPATH, &err);
if(!pmhandle) {
fprintf(stderr, "failed to initialize alpm: %s\n", alpm_strerror(err));
return NULL;
}
fp = fopen(PACMAN_CONFIG, "r");
if(!fp) {
return pmhandle;
}
while(fgets(line, PATH_MAX, fp)) {
size_t linelen;
if((ptr = strchr(line, '#'))) {
*ptr = '\0';
}
if(!(linelen = strtrim(line))) {
continue;
}
if(line[0] == '[' && line[linelen - 1] == ']') {
free(section);
section = strndup(&line[1], linelen - 2);
if(!streq(section, "options")) {
if(!cfg.skiprepos && !alpm_list_find_str(cfg.ignore.repos, section)) {
alpm_register_syncdb(pmhandle, section, 0);
cwr_printf(LOG_DEBUG, "registering alpm db: %s\n", section);
}
}
} else {
char *key, *token;
key = ptr = line;
strsep(&ptr, "=");
strtrim(key);
strtrim(ptr);
if(streq(key, "IgnorePkg")) {
for(token = strtok(ptr, "\t\n "); token; token = strtok(NULL, "\t\n ")) {
cwr_printf(LOG_DEBUG, "ignoring package: %s\n", token);
cfg.ignore.pkgs = alpm_list_add(cfg.ignore.pkgs, strdup(token));
}
}
}
}
db_local = alpm_get_localdb(pmhandle);
free(section);
fclose(fp);
return pmhandle;
}
alpm_list_t *alpm_find_foreign_pkgs(void)
{
const alpm_list_t *i;
alpm_list_t *ret = NULL;
for(i = alpm_db_get_pkgcache(db_local); i; i = i->next) {
alpm_pkg_t *pkg = i->data;
if(alpm_pkg_is_foreign(pkg)) {
ret = alpm_list_add(ret, strdup(alpm_pkg_get_name(pkg)));
}
}
return ret;
}
int alpm_pkg_is_foreign(alpm_pkg_t *pkg)
{
const alpm_list_t *i;
const char *pkgname;
pkgname = alpm_pkg_get_name(pkg);
for(i = alpm_get_syncdbs(pmhandle); i; i = i->next) {
if(alpm_db_get_pkg(i->data, pkgname)) {
return 0;
}
}
return 1;
}
const char *alpm_provides_pkg(const char *pkgname)
{
const alpm_list_t *i;
const char *dbname = NULL;
static pthread_mutex_t alpmlock = PTHREAD_MUTEX_INITIALIZER;
pthread_mutex_lock(&alpmlock);
for(i = alpm_get_syncdbs(pmhandle); i; i = i->next) {
alpm_db_t *db = i->data;
if(alpm_find_satisfier(alpm_db_get_pkgcache(db), pkgname)) {
dbname = alpm_db_get_name(db);
break;
}
}
pthread_mutex_unlock(&alpmlock);
return dbname;
}
int archive_extract_file(const struct response_t *file)
{
struct archive *archive;
struct archive_entry *entry;
const int archive_flags = ARCHIVE_EXTRACT_PERM | ARCHIVE_EXTRACT_TIME;
int r;
archive = archive_read_new();
archive_read_support_filter_all(archive);
archive_read_support_format_all(archive);
r = archive_read_open_memory(archive, file->data, file->size);
if(r != ARCHIVE_OK) {
return archive_errno(archive);
}
while(archive_read_next_header(archive, &entry) == ARCHIVE_OK) {
const char *entryname = archive_entry_pathname(entry);
cwr_printf(LOG_DEBUG, "extracting file: %s\n", entryname);
r = archive_read_extract(archive, entry, archive_flags);
/* NOOP ON ARCHIVE_{OK,WARN,RETRY} */
if(r == ARCHIVE_FATAL || r == ARCHIVE_WARN) {
r = archive_errno(archive);
break;
} else if (r == ARCHIVE_EOF) {
r = 0;
break;
}
}
archive_read_close(archive);
archive_read_free(archive);
return r;
}
int aurpkg_cmp(const void *p1, const void *p2)
{
const aurpkg_t *pkg1 = p1;
const aurpkg_t *pkg2 = p2;
return cfg.sortorder * cfg.sort_fn(pkg1, pkg2);
}
int aurpkg_cmpname(const aurpkg_t *pkg1, const aurpkg_t *pkg2) {
return strcmp(pkg1->name, pkg2->name);
}
int aurpkg_cmpver(const aurpkg_t *pkg1, const aurpkg_t *pkg2) {
return alpm_pkg_vercmp(pkg1->ver, pkg2->ver);
}
int aurpkg_cmpmaint(const aurpkg_t *pkg1, const aurpkg_t *pkg2) {
return strcmp(pkg1->maint, pkg2->maint);
}
int aurpkg_cmpvotes(const aurpkg_t *pkg1, const aurpkg_t *pkg2) {
return pkg1->votes - pkg2->votes;
}
int aurpkg_cmpood(const aurpkg_t *pkg1, const aurpkg_t *pkg2) {
return pkg1->ood - pkg2->ood;
}
int aurpkg_cmplastmod(const aurpkg_t *pkg1, const aurpkg_t *pkg2) {
return difftime(pkg1->lastmod, pkg2->lastmod);
}
int aurpkg_cmpfirstsub(const aurpkg_t *pkg1, const aurpkg_t *pkg2) {
return difftime(pkg1->firstsub, pkg2->firstsub);
}
aurpkg_t *aurpkg_dup(const aurpkg_t *pkg)
{
aurpkg_t *newpkg;
newpkg = malloc(sizeof(aurpkg_t));
return newpkg ? memcpy(newpkg, pkg, sizeof(aurpkg_t)) : NULL;
}
void aurpkg_free(void *pkg)
{
aurpkg_free_inner(pkg);
free(pkg);
}
int globcompare(const void *a, const void *b)
{
return fnmatch(a, b, 0);
}
void aurpkg_free_inner(aurpkg_t *pkg)
{
if(!pkg) {
return;
}
/* free allocated string fields */
free(pkg->name);
free(pkg->maint);
free(pkg->ver);
free(pkg->urlpath);
free(pkg->desc);
free(pkg->url);
free(pkg->pkgbase);
/* free extended list info */
FREELIST(pkg->depends);
FREELIST(pkg->groups);
FREELIST(pkg->checkdepends);
FREELIST(pkg->makedepends);
FREELIST(pkg->optdepends);
FREELIST(pkg->provides);
FREELIST(pkg->conflicts);
FREELIST(pkg->replaces);
FREELIST(pkg->licenses);
memset(pkg, 0, sizeof(aurpkg_t));
}
const char *category_id_to_string(size_t id)
{
if(id >= (sizeof(aur_cat)/sizeof(aur_cat[0] + 1))) {
return "Unknown";
} else {
return aur_cat[id];
}
}
int cwr_asprintf(char **string, const char *format, ...)
{
int ret = 0;
va_list args;
va_start(args, format);
ret = vasprintf(string, format, args);
va_end(args);
if(ret == -1) {
cwr_fprintf(stderr, LOG_ERROR, "failed to allocate string\n");
}
return ret;
}
int cwr_fprintf(FILE *stream, loglevel_t level, const char *format, ...)
{
int ret;
va_list args;
va_start(args, format);
ret = cwr_vfprintf(stream, level, format, args);
va_end(args);
return ret;
}
int cwr_printf(loglevel_t level, const char *format, ...)
{
int ret;
va_list args;
va_start(args, format);
ret = cwr_vfprintf(stdout, level, format, args);
va_end(args);
return ret;
}
int cwr_vfprintf(FILE *stream, loglevel_t level, const char *format, va_list args)
{
const char *prefix;
char bufout[128];
if(!(cfg.logmask & level)) {
return 0;
}
switch(level) {
case LOG_VERBOSE:
case LOG_INFO:
prefix = colstr.info;
break;
case LOG_ERROR:
prefix = colstr.error;
break;
case LOG_WARN:
prefix = colstr.warn;
break;
case LOG_DEBUG:
prefix = "debug:";
break;
default:
prefix = "";
break;
}
/* f.l.w.: 128 should be big enough... */
snprintf(bufout, 128, "%s %s", prefix, format);
return vfprintf(stream, bufout, args);
}
CURL *curl_init_easy_handle(CURL *handle)
{
if(!handle) {
return NULL;
}
curl_easy_reset(handle);
curl_easy_setopt(handle, CURLOPT_USERAGENT, kCowerUserAgent);
curl_easy_setopt(handle, CURLOPT_ENCODING, "deflate, gzip");
curl_easy_setopt(handle, CURLOPT_CONNECTTIMEOUT, cfg.timeout);
curl_easy_setopt(handle, CURLOPT_FOLLOWLOCATION, 1L);
/* This is required of multi-threaded apps using timeouts. See
* curl_easy_setopt(3) */
if(cfg.timeout > 0L) {
curl_easy_setopt(handle, CURLOPT_NOSIGNAL, 1L);
}
return handle;
}
size_t curl_write_response(void *ptr, size_t size, size_t nmemb, void *stream)
{
void *newdata;
size_t realsize = size * nmemb;
struct response_t *mem = stream;
newdata = realloc(mem->data, mem->size + realsize + 1);
if(newdata) {
mem->data = newdata;
memcpy(&(mem->data[mem->size]), ptr, realsize);
mem->size += realsize;
mem->data[mem->size] = '\0';
} else {
cwr_fprintf(stderr, LOG_ERROR, "failed to reallocate %zd bytes\n",
mem->size + realsize + 1);
return 0;
}
return realsize;
}
void *download(CURL *curl, void *arg)
{
alpm_list_t *queryresult = NULL;
aurpkg_t *result;
CURLcode curlstat;
char *url;
int ret;
long httpcode;
struct response_t response = { 0, 0 };
curl = curl_init_easy_handle(curl);
queryresult = task_query(curl, arg);
if(!queryresult) {
cwr_fprintf(stderr, LOG_BRIEF, BRIEF_ERR "\t%s\t", (const char*)arg);
cwr_fprintf(stderr, LOG_ERROR, "no results found for %s\n", (const char*)arg);
return NULL;
}
if(access(arg, F_OK) == 0 && !cfg.force) {
cwr_fprintf(stderr, LOG_BRIEF, BRIEF_ERR "\t%s\t", (const char*)arg);
cwr_fprintf(stderr, LOG_ERROR, "`%s/%s' already exists. Use -f to overwrite.\n",
cfg.dlpath, (const char*)arg);
alpm_list_free_inner(queryresult, aurpkg_free);
alpm_list_free(queryresult);
return NULL;
}
curl_easy_setopt(curl, CURLOPT_ENCODING, "identity"); /* disable compression */
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &response);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_write_response);
result = queryresult->data;
cwr_asprintf(&url, AUR_BASE_URL "%s", result->urlpath);
curl_easy_setopt(curl, CURLOPT_URL, url);
cwr_printf(LOG_DEBUG, "[%s]: curl_easy_perform %s\n", (const char*)arg, url);
curlstat = curl_easy_perform(curl);
if(curlstat != CURLE_OK) {
cwr_fprintf(stderr, LOG_BRIEF, BRIEF_ERR "\t%s\t", (const char*)arg);
cwr_fprintf(stderr, LOG_ERROR, "[%s]: %s\n", (const char*)arg, curl_easy_strerror(curlstat));
goto finish;
}
curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &httpcode);
cwr_printf(LOG_DEBUG, "[%s]: server responded with %ld\n", (const char *)arg, httpcode);
switch(httpcode) {
case 200:
break;
default:
cwr_fprintf(stderr, LOG_BRIEF, BRIEF_ERR "\t%s\t", (const char*)arg);
cwr_fprintf(stderr, LOG_ERROR, "[%s]: server responded with HTTP %ld\n",
(const char*)arg, httpcode);
goto finish;
}
ret = archive_extract_file(&response);
if(ret != 0) {
cwr_fprintf(stderr, LOG_BRIEF, BRIEF_ERR "\t%s\t", (const char*)arg);
cwr_fprintf(stderr, LOG_ERROR, "[%s]: failed to extract tarball: %s\n",
(const char*)arg, strerror(ret));
goto finish;
}
cwr_printf(LOG_BRIEF, BRIEF_OK "\t%s\t", result->name);
cwr_printf(LOG_INFO, "%s%s%s downloaded to %s\n",
colstr.pkg, result->name, colstr.nc, cfg.dlpath);
if(cfg.getdeps) {
resolve_pkg_dependencies(curl, result);
}
finish:
free(url);
free(response.data);
return queryresult;
}
alpm_list_t *filter_results(alpm_list_t *list)
{
const alpm_list_t *i, *j;
alpm_list_t *filtered = NULL;
if(!(cfg.opmask & OP_SEARCH)) {
return list;
}
for(i = cfg.targets; i; i = i->next) {
regex_t regex;
const char *targ = i->data;
filtered = NULL;
if(regcomp(®ex, targ, kRegexOpts) == 0) {
for(j = list; j; j = j->next) {
aurpkg_t *pkg = j->data;
const char *name = pkg->name;
const char *desc = pkg->desc;
if(regexec(®ex, name, 0, 0, 0) != REG_NOMATCH ||
regexec(®ex, desc, 0, 0, 0) != REG_NOMATCH) {
filtered = alpm_list_add(filtered, pkg);
} else {
aurpkg_free(pkg);
}
}
regfree(®ex);
}
/* switcheroo */
alpm_list_free(list);
list = filtered;
}
return alpm_list_msort(filtered, alpm_list_count(filtered), aurpkg_cmp);
}
int getcols(void)
{
int termwidth = -1;
const int default_tty = 80;
const int default_notty = 0;
if(!isatty(fileno(stdout))) {
return default_notty;
}
#ifdef TIOCGSIZE
struct ttysize win;
if(ioctl(1, TIOCGSIZE, &win) == 0) {
termwidth = win.ts_cols;
}
#elif defined(TIOCGWINSZ)
struct winsize win;
if(ioctl(1, TIOCGWINSZ, &win) == 0) {
termwidth = win.ws_col;
}
#endif
return termwidth <= 0 ? default_tty : termwidth;
}
char *get_file_as_buffer(const char *path)
{
FILE *fp;
char *buf;
long fsize, nread;
fp = fopen(path, "r");
if(!fp) {
cwr_fprintf(stderr, LOG_ERROR, "error: failed to open %s: %s\n",
path, strerror(errno));
return NULL;
}
fseek(fp, 0L, SEEK_END);
fsize = ftell(fp);
fseek(fp, 0L, SEEK_SET);
buf = calloc(1, (size_t)fsize + 1);
nread = fread(buf, 1, fsize, fp);
fclose(fp);
if(nread < fsize) {
cwr_fprintf(stderr, LOG_ERROR, "Failed to read full PKGBUILD\n");
free(buf);
return NULL;
}
return buf;
}
int get_config_path(char *config_path, size_t pathlen)
{
char *var;
struct passwd *pwd;
var = getenv("XDG_CONFIG_HOME");
if(var != NULL) {
snprintf(config_path, pathlen, "%s/cower/config", var);
return 0;
}
var = getenv("HOME");
if(var != NULL) {
snprintf(config_path, pathlen, "%s/.config/cower/config", var);
return 0;
}
pwd = getpwuid(getuid());
if(pwd != NULL && pwd->pw_dir != NULL) {
snprintf(config_path, pathlen, "%s/.config/cower/config", pwd->pw_dir);
return 0;
}
return 1;
}
void indentprint(const char *str, int indent)
{
wchar_t *wcstr;
const wchar_t *p;
int len, cidx, cols;
if(!str) {
return;
}
cols = getcols();
/* if we're not a tty, print without indenting */
if(cols == 0) {
fputs(str, stdout);
return;
}
len = strlen(str) + 1;
wcstr = calloc(len, sizeof(wchar_t));
len = mbstowcs(wcstr, str, len);
p = wcstr;
cidx = indent;
if(!p || !len) {
return;
}
while(*p) {
if(*p == L' ') {
const wchar_t *q, *next;
p++;
if(!p || *p == L' ') {
continue;
}