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-rw-r--r--src/util/pacsort.c552
1 files changed, 0 insertions, 552 deletions
diff --git a/src/util/pacsort.c b/src/util/pacsort.c
deleted file mode 100644
index 662b250d..00000000
--- a/src/util/pacsort.c
+++ /dev/null
@@ -1,552 +0,0 @@
-/*
- * pacsort.c - a sort utility implementing alpm_pkg_vercmp
- *
- * Copyright (c) 2010-2016 Pacman Development Team <pacman-dev@archlinux.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <errno.h>
-#include <fnmatch.h>
-#include <getopt.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <alpm.h>
-#include "util-common.h"
-
-#define DELIM ' '
-#define INVALD_ESCAPE_CHAR ((char)-1)
-
-#ifndef MIN
-#define MIN(a, b) \
- __extension__({ \
- __typeof__(a) _a = (a); \
- __typeof__(b) _b = (b); \
- _a < _b ? _a : _b; \
- })
-#endif
-
-struct buffer_t {
- char *mem;
- size_t len;
- size_t maxlen;
-};
-
-struct list_t {
- void **list;
- size_t count;
- size_t maxcount;
-};
-
-struct input_t {
- char *data;
- int is_file;
-
- const char *pkgname;
- size_t pkgname_len;
-
- const char *pkgver;
- size_t pkgver_len;
-};
-
-static struct options_t {
- int order;
- int sortkey;
- int null;
- int filemode;
- int help;
- char delim;
-} opts;
-
-static struct buffer_t *buffer_new(size_t initial_size)
-{
- struct buffer_t *buf;
-
- buf = calloc(1, sizeof(*buf));
- if(!buf) {
- return NULL;
- }
-
- buf->mem = calloc(initial_size, sizeof(char));
- if(!buf->mem) {
- free(buf);
- return NULL;
- }
-
- buf->len = 0;
- buf->maxlen = initial_size;
-
- return buf;
-}
-
-static void buffer_free(struct buffer_t *buf)
-{
- if(!buf) {
- return;
- }
-
- free(buf->mem);
- free(buf);
-}
-
-static int buffer_grow(struct buffer_t *buffer)
-{
- size_t newsz = buffer->maxlen * 2.5;
- char* new_mem = realloc(buffer->mem, newsz * sizeof(char));
- if(!new_mem) {
- return 1;
- }
- buffer->mem = new_mem;
- buffer->maxlen = newsz;
-
- return 0;
-}
-
-static struct list_t *list_new(size_t initial_size)
-{
- struct list_t *list;
-
- list = calloc(1, sizeof(struct list_t));
- if(!list) {
- return NULL;
- }
-
- list->list = calloc(initial_size, sizeof(char *));
- if(!list->list) {
- free(list);
- return NULL;
- }
-
- list->maxcount = initial_size;
-
- return list;
-}
-
-static int list_grow(struct list_t *list)
-{
- size_t newsz = list->maxcount * 2.5;
- void **new_list = realloc(list->list, newsz * sizeof(char *));
- if(!new_list) {
- return 1;
- }
-
- list->list = new_list;
- list->maxcount = newsz;
-
- return 0;
-}
-
-static int list_add(struct list_t *list, void *obj)
-{
- if(!list || !obj) {
- return 1;
- }
-
- if(list->count + 1 >= list->maxcount) {
- if(list_grow(list) != 0) {
- return 1;
- }
- }
-
- list->list[list->count] = obj;
- list->count++;
-
- return 0;
-}
-
-static void list_free(struct list_t *list, void (*freefn)(void *))
-{
- size_t i;
-
- if(!list) {
- return;
- }
-
- if(list->list) {
- for(i = 0; i < list->count; i++) {
- freefn(list->list[i]);
- }
- free(list->list);
- }
- free(list);
-}
-
-static void input_free(void *p)
-{
- struct input_t *in = p;
-
- if(in == NULL) {
- return;
- }
-
- free(in->data);
- free(in);
-}
-
-static struct input_t *input_new(const char *path, int pathlen)
-{
- const char *pkgver_end;
- const char *slash;
- struct input_t *in;
-
- in = calloc(1, sizeof(struct input_t));
- if(in == NULL) {
- return NULL;
- }
-
- in->data = strndup(path, pathlen);
- if(in->data == NULL) {
- free(in);
- return NULL;
- }
-
- in->is_file = fnmatch("*-*.pkg.tar.?z", in->data, 0) == 0;
- if(!in->is_file) {
- return in;
- }
-
- /* for files, we parse the pkgname and pkgrel from the full filename. */
-
- slash = strrchr(in->data, '/');
- if(slash == NULL) {
- in->pkgname = in->data;
- } else {
- in->pkgname = slash + 1;
- }
-
- pkgver_end = strrchr(in->pkgname, '-');
-
- /* read backwards through pkgrel */
- for(in->pkgver = pkgver_end - 1;
- in->pkgver > in->pkgname && *in->pkgver != '-';
- --in->pkgver)
- ;
- /* read backwards through pkgver */
- for(--in->pkgver;
- in->pkgver > in->pkgname && *in->pkgver != '-';
- --in->pkgver)
- ;
- ++in->pkgver;
-
- in->pkgname_len = in->pkgver - in->pkgname - 1;
- in->pkgver_len = pkgver_end - in->pkgver;
-
- return in;
-}
-
-static char *explode(struct buffer_t *buffer, struct list_t *list)
-{
- char *ptr, *end;
- const char linedelim = opts.null ? '\0' : '\n';
- struct input_t *meta;
-
- ptr = buffer->mem;
- while((end = memchr(ptr, linedelim, &buffer->mem[buffer->len] - ptr))) {
- *end = '\0';
- meta = input_new(ptr, end - ptr);
- if(meta == NULL || list_add(list, meta) != 0) {
- input_free(meta);
- return NULL;
- }
- ptr = end + 1;
- }
-
- return ptr;
-}
-
-static int splitfile(FILE *stream, struct buffer_t *buffer, struct list_t *list)
-{
- size_t nread;
- char *ptr;
-
- while(!feof(stream)) {
- /* check if a read of BUFSIZ chars will overflow */
- if(buffer->len + BUFSIZ + 1 >= buffer->maxlen) {
- if(buffer_grow(buffer) != 0) {
- return 1;
- }
- }
-
- nread = fread(&buffer->mem[buffer->len], 1, BUFSIZ, stream);
- if(nread == 0) {
- break; /* EOF */
- }
- buffer->len += nread;
-
- if((ptr = explode(buffer, list)) == NULL) {
- return 1;
- }
-
- if(ptr != buffer->mem) {
- /* realign the data in the buffer */
- buffer->len = &buffer->mem[buffer->len] - ptr;
- memmove(&buffer->mem[0], ptr, buffer->len + 1);
- }
- }
-
- if(buffer->len) {
- struct input_t *meta = input_new(buffer->mem, buffer->len + 1);
- if(meta == NULL || list_add(list, meta) != 0) {
- input_free(meta);
- return 1;
- }
- }
-
- return 0;
-}
-
-/* returns a pointer to the nth column of a string without being destructive */
-static const char *nth_column(const char *string)
-{
- const char *prev, *ptr;
- int col;
-
- ptr = prev = string;
- for(col = 0; ptr && col < opts.sortkey; col++) {
- prev = ptr;
- ptr = strchr(ptr, opts.delim);
- if(ptr) {
- ptr++;
- }
- }
-
- return prev;
-}
-
-static int compare_versions(const char *v1, const char *v2)
-{
- if(opts.sortkey == 0) {
- return opts.order * alpm_pkg_vercmp(v1, v2);
- } else {
- return opts.order * alpm_pkg_vercmp(nth_column(v1), nth_column(v2));
- }
-}
-
-static int compare_files(const struct input_t *meta1, const struct input_t *meta2)
-{
- int cmp;
- char *verbuf;
- const char *v1, *v2;
-
- /* sort first by package name */
- cmp = memcmp(meta1->pkgname, meta2->pkgname,
- MIN(meta1->pkgname_len, meta2->pkgname_len));
-
- /* 1) package names differ, sort by package name */
- if(cmp != 0) {
- return opts.order * cmp;
- }
-
- /* 2) prefixes are the same but length differs, sort by length */
- if(meta1->pkgname_len != meta2->pkgname_len) {
- return opts.order * (meta1->pkgname_len - meta2->pkgname_len);
- }
-
- /* allocate once with enough space for both pkgver */
- verbuf = calloc(1, meta1->pkgver_len + 1 + meta2->pkgver_len + 1);
- memcpy(verbuf, meta1->pkgver, meta1->pkgver_len);
- memcpy(&verbuf[meta1->pkgver_len + 1], meta2->pkgver, meta2->pkgver_len);
-
- /* 3) sort by package version */
- v1 = verbuf;
- v2 = verbuf + meta1->pkgver_len + 1;
- cmp = compare_versions(v1, v2);
- free(verbuf);
-
- return cmp;
-}
-
-static int vercmp(const void *p1, const void *p2)
-{
- const struct input_t *meta1, *meta2;
-
- meta1 = *(struct input_t **)p1;
- meta2 = *(struct input_t **)p2;
-
- if(opts.filemode && meta1->is_file && meta2->is_file) {
- return compare_files(meta1, meta2);
- } else {
- return compare_versions(meta1->data, meta2->data);
- }
-}
-
-static char escape_char(const char *string)
-{
- if(!string) {
- return INVALD_ESCAPE_CHAR;
- }
-
- const size_t len = strlen(string);
-
- if(len > 2) {
- return INVALD_ESCAPE_CHAR;
- }
-
- if(len == 1) {
- return *string;
- }
-
- if(*string != '\\') {
- return INVALD_ESCAPE_CHAR;
- }
-
- switch(string[1]) {
- case 't':
- return '\t';
- case 'n':
- return '\n';
- case 'v':
- return '\v';
- case '0':
- return '\0';
- default:
- return INVALD_ESCAPE_CHAR;
- }
-}
-
-static void usage(void)
-{
- fprintf(stderr, "pacsort (pacman) v" PACKAGE_VERSION "\n\n"
- "A sort utility implementing alpm_pkg_vercmp.\n\n"
- "Usage: pacsort [options] [files...]\n\n"
- " -f, --files assume inputs are file paths of packages\n"
- " -h, --help display this help message\n"
- " -k, --key <index> sort input starting on specified column\n"
- " -r, --reverse sort in reverse order (default: oldest to newest)\n"
- " -t, --separator <sep> specify field separator (default: space)\n"
- " -z, --null lines end with null bytes, not newlines\n\n"
- "pacsort writes the sorted concatenation of all files, to standard output.\n"
- "Files should contain a list of inputs to sort.\n\n"
- "Standard input is read when no files are given.\n\n");
-}
-
-static int parse_options(int argc, char **argv)
-{
- int opt;
-
- static const struct option opttable[] = {
- {"files", no_argument, 0, 'f'},
- {"help", no_argument, 0, 'h'},
- {"key", required_argument, 0, 'k'},
- {"reverse", no_argument, 0, 'r'},
- {"separator", required_argument, 0, 't'},
- {"null", no_argument, 0, 'z'},
- {0, 0, 0, 0}
- };
-
- while((opt = getopt_long(argc, argv, "fhk:rt:z", opttable, NULL)) != -1) {
- switch(opt) {
- case 'f':
- opts.filemode = 1;
- break;
- case 'h':
- opts.help = 1;
- return 0;
- case 'k':
- opts.sortkey = (int)strtol(optarg, NULL, 10);
- if(opts.sortkey <= 0) {
- fprintf(stderr, "error: invalid sort key -- %s\n", optarg);
- return 1;
- }
- break;
- case 'r':
- opts.order = -1;
- break;
- case 't':
- opts.delim = escape_char(optarg);
- if(opts.delim == INVALD_ESCAPE_CHAR) {
- fprintf(stderr, "error: invalid field separator -- `%s'\n", optarg);
- return 1;
- }
- break;
- case 'z':
- opts.null = 1;
- break;
- default:
- return 1;
- }
- }
-
- return 0;
-}
-
-int main(int argc, char *argv[])
-{
- struct list_t *list;
- struct buffer_t *buffer;
- size_t i;
- int ret = 0;
-
- /* option defaults */
- opts.order = 1;
- opts.delim = DELIM;
- opts.sortkey = 0;
- opts.null = 0;
-
- if(parse_options(argc, argv) != 0) {
- usage();
- return 2;
- }
-
- if(opts.help) {
- usage();
- return 0;
- }
-
- list = list_new(100);
- buffer = buffer_new(BUFSIZ * 3);
-
- if(optind == argc) {
- if(splitfile(stdin, buffer, list) != 0) {
- fprintf(stderr, "%s: memory exhausted\n", argv[0]);
- ret = ENOMEM;
- goto cleanup;
- }
- } else {
- while(optind < argc) {
- FILE *input = fopen(argv[optind], "r");
- if(input) {
- if(splitfile(input, buffer, list) != 0) {
- fprintf(stderr, "%s: memory exhausted\n", argv[0]);
- fclose(input);
- ret = ENOMEM;
- goto cleanup;
- }
- fclose(input);
- } else {
- fprintf(stderr, "%s: %s: %s\n", argv[0], argv[optind], strerror(errno));
- }
- optind++;
- }
- }
-
- if(list->count) {
- const char linedelim = opts.null ? '\0' : '\n';
- qsort(list->list, list->count, sizeof(void *), vercmp);
- for(i = 0; i < list->count; i++) {
- const struct input_t *in = list->list[i];
- printf("%s%c", in->data, linedelim);
- }
- }
-
-cleanup:
- list_free(list, input_free);
- buffer_free(buffer);
-
- return ret;
-}
-
-/* vim: set noet: */
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-12-18 21:13:00 +0100