Subversion Repositories SvarDOS

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Ignore whitespace Rev 613 → Rev 614

/pkg/trunk/showinst.c
0,0 → 1,119
/*
* This file is part of PKG (SvarDOS)
* Copyright (C) 2013-2022 Mateusz Viste
*/
 
#include <stdio.h>
#include <ctype.h> /* tolower() */
#include <stdlib.h> /* atoi(), qsort() - not using it after all, redefining it manually later */
#include <string.h> /* strlen() */
#include <sys/types.h>
#include <direct.h> /* opendir() and friends */
 
#include "helpers.h" /* fdnpkg_strcasestr(), slash2backslash()... */
#include "kprintf.h"
#include "libunzip.h" /* zip_freelist()... */
#include "lsm.h"
#include "svarlang.lib\svarlang.h"
 
#include "showinst.h" /* include self for control */
 
 
int showinstalledpkgs(const char *filterstr, const char *dosdir) {
DIR *dp;
struct dirent *ep;
char buff[256];
char ver[16];
int matchfound = 0;
 
sprintf(buff, "%s\\packages", dosdir);
dp = opendir(buff);
if (dp == NULL) {
kitten_printf(9, 0, buff); /* "ERROR: Could not access directory %s" */
puts("");
return(-1);
}
 
while ((ep = readdir(dp)) != NULL) { /* readdir() result must never be freed (statically allocated) */
int tlen = strlen(ep->d_name);
if (ep->d_name[0] == '.') continue; /* ignore '.', '..', and hidden directories */
if (tlen < 4) continue; /* files must be at least 5 bytes long ("x.lst") */
if (strcasecmp(ep->d_name + tlen - 4, ".lst") != 0) continue; /* if not an .lst file, skip it silently */
ep->d_name[tlen - 4] = 0; /* trim out the ".lst" suffix */
 
if (filterstr != NULL) {
if (fdnpkg_strcasestr(ep->d_name, filterstr) == NULL) continue; /* if it's not matching the non-NULL filter, skip it */
}
 
/* load the metadata from %DOSDIR\APPINFO\*.lsm */
sprintf(buff, "%s\\appinfo\\%s.lsm", dosdir, ep->d_name);
readlsm(buff, ver, sizeof(ver));
 
printf("%s %s", ep->d_name, ver);
puts("");
matchfound = 1;
}
if (matchfound == 0) puts(svarlang_str(5, 0)); /* "No package matched the search." */
 
closedir(dp);
return(0);
}
 
 
/* frees a linked list of filenames */
void pkg_freeflist(struct flist_t *flist) {
while (flist != NULL) {
struct flist_t *victim = flist;
flist = flist->next;
free(victim);
}
}
 
 
/* returns a linked list of the files that belong to package pkgname */
struct flist_t *pkg_loadflist(const char *pkgname, const char *dosdir) {
struct flist_t *res = NULL, *newnode;
FILE *fd;
char buff[256];
 
sprintf(buff, "%s\\packages\\%s.lst", dosdir, pkgname);
fd = fopen(buff, "rb");
if (fd == NULL) {
kitten_printf(9, 1, pkgname); /* "ERROR: Local package '%s' not found." */
puts("");
return(NULL);
}
/* iterate through all lines of the file */
while (freadtokval(fd, buff, sizeof(buff), NULL, 0) == 0) {
slash2backslash(buff); /* change all / to \ */
if (buff[0] == 0) continue; /* skip empty lines */
if (buff[strlen(buff) - 1] == '\\') continue; /* skip directories */
/* add the new node to the result */
newnode = malloc(sizeof(struct flist_t) + strlen(buff));
if (newnode == NULL) {
kitten_printf(2, 14, "malloc failure"); /* "Out of memory! (%s)" */
continue;
}
newnode->next = res;
strcpy(newnode->fname, buff);
res = newnode;
}
fclose(fd);
return(res);
}
 
 
/* Prints files owned by a package */
int listfilesofpkg(const char *pkgname, const char *dosdir) {
struct flist_t *flist, *flist_ptr;
/* load the list of files belonging to pkgname */
flist = pkg_loadflist(pkgname, dosdir);
if (flist == NULL) return(-1);
/* display each filename on screen */
for (flist_ptr = flist; flist_ptr != NULL; flist_ptr = flist_ptr->next) {
puts(flist_ptr->fname);
}
/* free the list of files */
pkg_freeflist(flist);
return(0);
}