Example #1
0
int FillPkgDataFromPackage(PkgData *Data, char *filename)
{
	int i = 0, j = 0, end = 0;

	i = end = strlen(filename);

	/* Get build and extension */
	for (;filename[i] != '-' && i>0;i--) ;
	if (i == 0) return 1;
	i++;
	/* While we are not on a ., it is part of the build */
	for (j=i;filename[j]!='.' && j<end; j++) ;
	if (j == end || j == i) return 1;
	strncpy(Data->build, filename+i, j-i);
	/* From the . to the end we are in the extension */
	strncpy(Data->extension, filename+j+1, end-j);
	/* Now, save the arch */
	i -= 2;
	end = i;
	for (;filename[i]!= '-' && i>0;i--);
	if (i==0 || i == end) return 1;
	j = i-1;
	i++;
	strncpy(Data->arch, filename+i, end-i+1);
	/* Now, save the version */
	i -= 2;
	end = i;
	for (;filename[i]!= '-' && i>0;i--);
	if (i==0) return 1;
	j = i-1;
	i++;
	strncpy(Data->version, filename+i, end-i+1);
	/* Now save the name */
	if (j == 0) return 1;
	strncpy(Data->name, filename, j+1);

	/* The link */
	sprintf(Data->link, "%s/%s", link_pkgs, filename);

	/* Get the hash */
	if (GiveMeHash(filename, Data->crc)) {
		fprintf(stderr, "Error aquiring crc32 from file [%s]\n", filename);
		return 1;
	}
	return 0;
}
Example #2
0
/**
 * This function downloads a package from the internet looking for its mirrors calling the SearchLinkForPackage 
 * @param name A package name
 * @param out Since this function may get called by InstallPkg, the full path to the package downloaded will be saved here. If null is given, this will not change.
 * @return If no error ocurr, 0 is returned. If the package doesn't exists in any mirror, 1 is returned. In case of error, -1 (And an error message is issued)
 */
int DownloadPkg(char *name, char *out)
{
	ListOfLinks Links;
	char filename[PATH_MAX], pkgcrc[32];
	int i = 0, fd = 0;
	char *MIRROR = NULL;

	/* Initialize everything up */
	memset(&Links, 0, sizeof(ListOfLinks));

	/* Search for the package's links */
	/* If there is no, 1 is returned, so we leave here */
	if ((MIRROR = getenv("MIRROR"))) {
		if (SearchLinkForPackage(name, &Links, MIRROR))
			return 1;
	}
	else if (SearchLinkForPackage(name, &Links, NULL))
		return 1;

	if (Links.index > 1)
		i = GetLinkFromInput(&Links);

	sprintf(filename, "%s/%s#%s#%s#%s.%s", PACKAGES_DIRECTORY, Links.name[i], Links.version[i], Links.arch[i], Links.build[i], Links.extension[i]);

	/* If the output already exist and the CRC is ok, then great, we already have it, so there's no need to download it again */
	if ((fd = open(filename, O_RDONLY)) >= 0) {
		close(fd);
		if (GiveMeHash(filename, pkgcrc) == -1) {
			freeLinks(&Links);
			return -1;
		}
		if (strcmp(pkgcrc, Links.crcs[i]))
			fprintf(stderr, "CRC error, Downloading the package again...\n");
		else {
			/* Great, it's already installed, so we leave */
			if (out)
				strcpy(out, filename);
			freeLinks(&Links);
			return 0;
		}
	}

	/* Download the link */
	if (Download(Links.links[i], filename) == -1) {
		freeLinks(&Links);
		return -1;
	}
	if (out)
		strcpy(out, filename);

	/* Get the link hash */
	if (GiveMeHash(filename, pkgcrc) == -1) {
		freeLinks(&Links);
		return -1;
	}

	/* Does the link hash match with the one given in the database? */
	if (strcmp(pkgcrc, Links.crcs[i])) {
		freeLinks(&Links);
		fprintf(stderr, "CRC error, try to download your package again\n");
		return -1;
	}

	/* Great, we're cool, so we leave */
	freeLinks(&Links);

	return 0;
}
Example #3
0
/**
 * This function installs a package by calling ExtractPackage to extract it and InsertPkgDB to insert the package in PACKAGES and FILESPKG tables
 * @param name A package name
 * @return If no error ocurr, 0 is returned. If the package is already installed, 1 is returned (And a message is issued). In case of error, -1 (And an error message is issued)
 */
int InstallPkg(char *package)
{
	char *ptr_name = NULL, *init_path = NULL, *input = NULL;
	char pkgfullpathname[PATH_MAX];
	char PackageOrig[PATH_MAX];
	int fd = 0;
	PkgData Data;

	/* Save locations and initialize the package structure */
	strncpy(PackageOrig, package, PATH_MAX);
	PackageOrig[strlen(package)>PATH_MAX?PATH_MAX:strlen(package)] = '\0';
	init_path = getcwd(malloc(PATH_MAX), PATH_MAX);
	memset(&Data, '\0', sizeof(PkgData));

	/* Does it fisically exist? */
	if ((fd = open(package, O_RDONLY)) < 0) {
		/* Ok, the package doesn't exists, let's go for a mirror */
		if (DownloadPkg(package, pkgfullpathname) != 0) {
			free(init_path);
			return -1;
		}
	}
	else {
		close(fd);
		/* Get the full pathname instead of its relative name */
		if (GetFileFullPath(package, pkgfullpathname)) {
			fprintf(stderr, "Failed to install %s\n", package);
			return -1;
		}
	}
	ptr_name = basename(pkgfullpathname);

	/* Switch to HOME_ROOT */
	if (chdir(HOME_ROOT)) {
		fprintf(stderr, "Can't go to %s (%s)\n", HOME_ROOT, strerror(errno));
		free(init_path);
		return -1;
	}

	/* Fill the package structure according to the package name */
	if (FillPkgDataFromPackage(&Data, ptr_name)) {
		fprintf(stdout, "Wrong package name format. It should be \"" PACKAGE_NAME_FORMAT "\"\n");
		chdir(init_path);
		return -1;
	}

	/* Open the database */
	if (sqlite3_open(dbname, &Database)) {
		fprintf(stderr, "Failed to open database %s (%s)\n", dbname, sqlite3_errmsg(Database));
		chdir(init_path);
		free(init_path);
		return -1;
	}

	/* Check if it is already installed */
	if (ExistsPkg(&Data)) {
		fprintf(stderr, "Package %s already installed\n", PackageOrig);
		chdir(init_path);
		free(init_path);
		return 1;
	}

	/* Get the package hash so we can register it in the database */
	if (GiveMeHash(pkgfullpathname, Data.crc) == -1) {
		chdir(init_path);
		free(init_path);
		return -1;
	}

	/* Extract the package itself */
	if (ExtractPackage(pkgfullpathname, &Data) == -1) {
		chdir(init_path);
		free(init_path);
		return -1;
	}
	PostInstall();

	/* Register the package in the database */
	InsertPkgDB(&Data);

	/* Clean everything up */
	sqlite3_close(Database);
	chdir(init_path);
	if (!noreadme) {
		printf("Press intro to continue");
		getline(&input, (size_t *)&fd, stdin);
		free(input);
	}
	fprintf(stdout, "Package %s installed\n", PackageOrig);
	return 0;
}