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mateuszvis |
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/*
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mateuszvis |
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* This file is part of PKGINST (SvarDOS)
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* Copyright (C) 2013-2021 Mateusz Viste. All rights reserved.
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mateuszvis |
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*/
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#include <stdio.h>
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#include <ctype.h> /* tolower() */
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#include <stdlib.h> /* atoi(), qsort() - not using it after all, redefining it manually later */
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#include <string.h> /* strlen() */
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#include <sys/types.h>
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mateuszvis |
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#include <direct.h> /* opendir() and friends */
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mateuszvis |
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#include "fdnpkg.h" /* PKGINST_UPDATE */
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#include "fileexst.h"
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#include "getdelim.h"
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#include "helpers.h" /* fdnpkg_strcasestr(), slash2backslash()... */
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#include "kprintf.h"
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#include "libunzip.h" /* zip_freelist()... */
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#include "lsm.h"
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#include "pkgdb.h"
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#include "pkginst.h"
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#include "pkgrem.h"
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#include "rtrim.h"
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#include "showinst.h" /* include self for control */
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#include "version.h"
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/* this is a wrapper around strcasecmp(), to be used by qsort() */
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static int strcompare(const void *str1, const void *str2) {
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char **s1 = (char **)str1;
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char **s2 = (char **)str2;
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return(strcasecmp(*s1, *s2));
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}
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static int loadinstpkglist(char **packagelist, char **packagelist_ver, int packagelist_maxlen, char *filterstr, char *dosdir) {
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DIR *dp;
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int packagelist_len = 0, x;
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struct dirent *ep;
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#define verstr_maxlen 64
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char pkgdir[512], lsmfilename[1024], verstr[verstr_maxlen];
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sprintf(pkgdir, "%s\\packages", dosdir);
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dp = opendir(pkgdir);
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if (dp != NULL) {
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while ((ep = readdir(dp)) != NULL) {
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if (ep->d_name[0] != '.') { /* ignore '.', '..', and hidden directories */
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if (strlen(ep->d_name) > 4) {
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int tlen = strlen(ep->d_name);
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if ((ep->d_name[tlen - 4] != '.') || (tolower(ep->d_name[tlen - 3]) != 'l') || (tolower(ep->d_name[tlen - 2]) != 's') || (tolower(ep->d_name[tlen - 1]) != 't')) continue; /* if it's not an .lst file, skip it silently */
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if (filterstr != NULL) {
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if (fdnpkg_strcasestr(ep->d_name, filterstr) == NULL) continue; /* if it's not matching the non-NULL filter, skip it */
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}
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if (packagelist_len >= packagelist_maxlen) {
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closedir(dp);
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return(-1); /* if not enough place in the list - return an error */
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}
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packagelist[packagelist_len] = strdup(ep->d_name);
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packagelist[packagelist_len][strlen(packagelist[packagelist_len]) - 4] = 0; /* cut out the .lst extension */
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packagelist_len += 1;
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}
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}
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}
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closedir(dp);
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qsort(packagelist, packagelist_len, sizeof (char **), strcompare); /* sort the package list */
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for (x = 0; x < packagelist_len; x++) {
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/* for each package, load the metadata from %DOSDIR\APPINFO\*.lsm */
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sprintf(lsmfilename, "%s\\appinfo\\%s.lsm", dosdir, packagelist[x]);
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if (readlsm(lsmfilename, verstr, verstr_maxlen) != 0) sprintf(verstr, "(unknown version)");
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packagelist_ver[x] = strdup(verstr);
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}
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return(packagelist_len);
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} else {
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kitten_printf(9, 0, "Error: Could not access the %s directory.", pkgdir);
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puts("");
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return(-1);
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}
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}
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#define packagelist_maxlen 1024
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void showinstalledpkgs(char *filterstr, char *dosdir) {
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char *packagelist[packagelist_maxlen];
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char *packagelist_ver[packagelist_maxlen];
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int packagelist_len, x;
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/* load the list of packages */
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packagelist_len = loadinstpkglist(packagelist, packagelist_ver, packagelist_maxlen, filterstr, dosdir); /* Populate the packages list */
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if (packagelist_len < 0) return;
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if (packagelist_len == 0) {
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kitten_puts(5, 0, "No package matched the search.");
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return;
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}
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/* iterate through all packages */
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for (x = 0; x < packagelist_len; x++) {
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/* print the package/version couple on screen */
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printf("%s %s\n", packagelist[x], packagelist_ver[x]);
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}
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}
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/* frees a linked list of filenames */
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void pkg_freeflist(struct flist_t *flist) {
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while (flist != NULL) {
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struct flist_t *victim = flist;
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flist = flist->next;
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free(victim);
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}
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}
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/* returns a linked list of the files that belong to package pkgname */
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struct flist_t *pkg_loadflist(char *pkgname, char *dosdir) {
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struct flist_t *res = NULL, *newnode;
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FILE *fd;
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char *lineptr;
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char buff[512];
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int getdelimlen, fnamelen;
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size_t getdelimcount = 0;
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sprintf(buff, "%s\\packages\\%s.lst", dosdir, pkgname);
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if (fileexists(buff) == 0) { /* file does not exist */
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kitten_printf(9, 1, "Error: Local package %s not found.", pkgname);
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puts("");
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return(NULL);
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}
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fd = fopen(buff, "rb");
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if (fd == NULL) {
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kitten_puts(4, 1, "Error opening lst file!");
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return(NULL);
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}
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/* iterate through all lines of the file */
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for (;;) {
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lineptr = NULL;
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getdelimlen = getdelim(&lineptr, &getdelimcount, '\n', fd);
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if (getdelimlen < 0) { /* EOF */
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free(lineptr);
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break;
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}
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rtrim(lineptr); /* right-trim the filename */
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slash2backslash(lineptr); /* change all / to \ */
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if ((lineptr[0] == 0) || (lineptr[0] == '\r') || (lineptr[0] == '\n')) continue; /* skip empty lines */
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if (lineptr[strlen(lineptr) - 1] == '\\') continue; /* skip directories */
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if ((lineptr[0] == '\\') || (lineptr[1] == ':')) { /* this is an absolute path */
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fnamelen = snprintf(buff, sizeof(buff), "%s", lineptr);
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} else { /* else it's a relative path starting at %dosdir% */
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fnamelen = snprintf(buff, sizeof(buff), "%s\\%s\n", dosdir, lineptr);
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}
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free(lineptr); /* free the memory occupied by the line */
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/* add the new node to the result */
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newnode = malloc(sizeof(struct flist_t) + fnamelen);
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if (newnode == NULL) {
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kitten_printf(2, 14, "Out of memory! (%s)", "malloc failure");
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continue;
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}
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newnode->next = res;
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strcpy(newnode->fname, buff);
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res = newnode;
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}
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fclose(fd);
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return(res);
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}
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/* Prints files owned by a package */
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void listfilesofpkg(char *pkgname, char *dosdir) {
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struct flist_t *flist, *flist_ptr;
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/* load the list of files belonging to pkgname */
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flist = pkg_loadflist(pkgname, dosdir);
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/* display each filename on screen */
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for (flist_ptr = flist; flist_ptr != NULL; flist_ptr = flist_ptr->next) {
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printf("%s\n", flist_ptr->fname);
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}
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/* free the list of files */
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pkg_freeflist(flist);
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}
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