LIBBB_LIB = libbb.a
LIBBB_CSRC= ask_confirmation.c check_wildcard_match.c chomp.c \
concat_path_file.c copy_file.c copy_file_chunk.c create_path.c daemon.c \
-deb_extract.c device_open.c error_msg.c error_msg_and_die.c \
-find_mount_point.c find_pid_by_name.c find_root_device.c full_read.c \
-full_write.c get_ar_headers.c get_console.c get_last_path_component.c \
-get_line_from_file.c gz_open.c human_readable.c inode_hash.c \
-isdirectory.c kernel_version.c loop.c mode_string.c module_syscalls.c mtab.c \
-mtab_file.c my_getgrnam.c my_getgrgid.c my_getpwnam.c my_getpwnamegid.c \
-my_getpwuid.c parse_mode.c parse_number.c perror_msg.c perror_msg_and_die.c \
-print_file.c process_escape_sequence.c recursive_action.c safe_read.c \
-safe_strncpy.c syscalls.c syslog_msg_with_name.c time_string.c trim.c unzip.c \
-vdprintf.c verror_msg.c vperror_msg.c wfopen.c xfuncs.c xgetcwd.c xregcomp.c
+deb_extract.c device_open.c error_msg.c error_msg_and_die.c find_mount_point.c \
+find_pid_by_name.c find_root_device.c full_read.c full_write.c \
+get_ar_headers.c get_console.c get_last_path_component.c get_line_from_file.c \
+gz_open.c human_readable.c inode_hash.c isdirectory.c kernel_version.c loop.c \
+mode_string.c module_syscalls.c mtab.c mtab_file.c my_getgrnam.c my_getgrgid.c \
+my_getpwnam.c my_getpwnamegid.c my_getpwuid.c parse_mode.c parse_number.c \
+perror_msg.c perror_msg_and_die.c print_file.c process_escape_sequence.c \
+recursive_action.c safe_read.c safe_strncpy.c seek_ared_file.c syscalls.c \
+syslog_msg_with_name.c time_string.c trim.c untar.c unzip.c vdprintf.c \
+verror_msg.c vperror_msg.c wfopen.c xfuncs.c xgetcwd.c xregcomp.c
LIBBB_OBJS=$(patsubst %.c,$(LIBBB)/%.o, $(LIBBB_CSRC))
LIBBB_CFLAGS = -I$(LIBBB)
const int extract_to_file = 8; /* extract contents of archive */
const int extract_to_stdout = 16; /* extract to stdout */
+ FILE *src_file = NULL, *dst_file = NULL;
int funct = 0, opt=0;
- int srcFd=0, dstFd=0;
- ar_headers_t head, *extract_list=NULL;
+ ar_headers_t *head, *extract_list=NULL;
- extract_list = (ar_headers_t *) xmalloc(sizeof(ar_headers_t));
+ extract_list = (ar_headers_t *) xcalloc(1, sizeof(ar_headers_t));
+ head = (ar_headers_t *) xcalloc(1, sizeof(ar_headers_t));
while ((opt = getopt(argc, argv, "ovtpx")) != -1) {
switch (opt) {
}
/* check the src filename was specified */
- if (optind == argc)
+ if (optind == argc) {
show_usage();
-
- if ( (srcFd = open(argv[optind], O_RDONLY)) < 0)
+ }
+
+ if ( (src_file = wfopen(argv[optind], "r")) < 0) {
error_msg_and_die("Cannot read %s", argv[optind]);
+ }
optind++;
- head = get_ar_headers(srcFd);
-
+ head = get_ar_headers(src_file);
/* find files to extract or display */
/* search through argv and build extract list */
- for (;optind<argc; optind++) {
+ for (;optind < argc; optind++) {
ar_headers_t *ar_entry;
- ar_entry = (ar_headers_t *) xmalloc(sizeof(ar_headers_t));
- ar_entry = &head;
+ ar_entry = (ar_headers_t *) xcalloc(1, sizeof(ar_headers_t));
+ ar_entry = head;
while (ar_entry->next != NULL) {
if (strcmp(argv[optind], ar_entry->name) == 0) {
ar_headers_t *tmp;
/* if individual files not found extract all files */
if (extract_list->next==NULL) {
- extract_list = &head;
+ extract_list = head;
}
-
+
/* find files to extract or display */
while (extract_list->next != NULL) {
if (funct & extract_to_file) {
- dstFd = open(extract_list->name, O_WRONLY | O_CREAT, extract_list->mode);
+ dst_file = wfopen(extract_list->name, "w");
}
else if (funct & extract_to_stdout) {
- dstFd = fileno(stdout);
+ dst_file = stdout;
}
if ((funct & extract_to_file) || (funct & extract_to_stdout)) {
- lseek(srcFd, extract_list->offset, SEEK_SET);
- copy_file_chunk(srcFd, dstFd, (off_t) extract_list->size);
+ fseek(src_file, extract_list->offset, SEEK_SET);
+ copy_file_chunk(src_file, dst_file, (off_t) extract_list->size);
}
if (funct & verbose) {
printf("%s %d/%d %8d %s ", mode_string(extract_list->mode),
const int extract_to_file = 8; /* extract contents of archive */
const int extract_to_stdout = 16; /* extract to stdout */
+ FILE *src_file = NULL, *dst_file = NULL;
int funct = 0, opt=0;
- int srcFd=0, dstFd=0;
- ar_headers_t head, *extract_list=NULL;
+ ar_headers_t *head, *extract_list=NULL;
- extract_list = (ar_headers_t *) xmalloc(sizeof(ar_headers_t));
+ extract_list = (ar_headers_t *) xcalloc(1, sizeof(ar_headers_t));
+ head = (ar_headers_t *) xcalloc(1, sizeof(ar_headers_t));
while ((opt = getopt(argc, argv, "ovtpx")) != -1) {
switch (opt) {
}
/* check the src filename was specified */
- if (optind == argc)
+ if (optind == argc) {
show_usage();
-
- if ( (srcFd = open(argv[optind], O_RDONLY)) < 0)
+ }
+
+ if ( (src_file = wfopen(argv[optind], "r")) < 0) {
error_msg_and_die("Cannot read %s", argv[optind]);
+ }
optind++;
- head = get_ar_headers(srcFd);
-
+ head = get_ar_headers(src_file);
/* find files to extract or display */
/* search through argv and build extract list */
- for (;optind<argc; optind++) {
+ for (;optind < argc; optind++) {
ar_headers_t *ar_entry;
- ar_entry = (ar_headers_t *) xmalloc(sizeof(ar_headers_t));
- ar_entry = &head;
+ ar_entry = (ar_headers_t *) xcalloc(1, sizeof(ar_headers_t));
+ ar_entry = head;
while (ar_entry->next != NULL) {
if (strcmp(argv[optind], ar_entry->name) == 0) {
ar_headers_t *tmp;
/* if individual files not found extract all files */
if (extract_list->next==NULL) {
- extract_list = &head;
+ extract_list = head;
}
-
+
/* find files to extract or display */
while (extract_list->next != NULL) {
if (funct & extract_to_file) {
- dstFd = open(extract_list->name, O_WRONLY | O_CREAT, extract_list->mode);
+ dst_file = wfopen(extract_list->name, "w");
}
else if (funct & extract_to_stdout) {
- dstFd = fileno(stdout);
+ dst_file = stdout;
}
if ((funct & extract_to_file) || (funct & extract_to_stdout)) {
- lseek(srcFd, extract_list->offset, SEEK_SET);
- copy_file_chunk(srcFd, dstFd, (off_t) extract_list->size);
+ fseek(src_file, extract_list->offset, SEEK_SET);
+ copy_file_chunk(src_file, dst_file, (off_t) extract_list->size);
}
if (funct & verbose) {
printf("%s %d/%d %8d %s ", mode_string(extract_list->mode),
int r = 0, i;
int status = TRUE;
char *cwd = xgetcwd(0);
- char *src_file = NULL;
- char *dst_file = NULL;
+ char *src_filename = NULL;
+ char *dst_filename = NULL;
// char *lst_file = NULL;
char *adminscripts[] = { "prerm", "postrm", "preinst", "postinst",
"conffiles", "md5sums", "shlibs", "templates" };
if(cwd==NULL)
exit(EXIT_FAILURE);
chdir("/");
- deb_extract(dpkg_deb_extract, "/", pkg->file);
+ deb_extract(pkg->file, dpkg_deb_extract, "/");
/* Installs the package scripts into the info directory */
for (i = 0; i < sizeof(adminscripts) / sizeof(adminscripts[0]); i++) {
struct stat src_stat_buf;
- int src_fd = 0, dst_fd = 0;
+ FILE *src_file = NULL, *dst_file = NULL;
/* The full path of the current location of the admin file */
- src_file = xrealloc(src_file, strlen(dpkgcidir) + strlen(pkg->package) + strlen(adminscripts[i]) + 1);
- sprintf(src_file, "%s%s/%s", dpkgcidir, pkg->package, adminscripts[i]);
+ src_filename = xrealloc(src_filename, strlen(dpkgcidir) + strlen(pkg->package) + strlen(adminscripts[i]) + 1);
+ sprintf(src_filename, "%s%s/%s", dpkgcidir, pkg->package, adminscripts[i]);
/* the full path of where we want the file to be copied to */
- dst_file = xrealloc(dst_file, strlen(infodir) + strlen(pkg->package) + strlen(adminscripts[i]) + 1);
- sprintf(dst_file, "%s%s.%s", infodir, pkg->package, adminscripts[i]);
+ dst_filename = xrealloc(dst_filename, strlen(infodir) + strlen(pkg->package) + strlen(adminscripts[i]) + 1);
+ sprintf(dst_filename, "%s%s.%s", infodir, pkg->package, adminscripts[i]);
/*
* copy admin file to permanent home
* NOTE: Maybe merge this behaviour into libb/copy_file.c
*/
- if (lstat(src_file, &src_stat_buf) == 0) {
- if ((src_fd = open(src_file, O_RDONLY)) != -1) {
- if ((dst_fd = open(dst_file, O_WRONLY | O_CREAT, 0644)) == -1) {
+ if (lstat(src_filename, &src_stat_buf) == 0) {
+ if ((src_file = wfopen(src_filename, "r")) != NULL) {
+ if ((dst_file = wfopen(dst_filename, "w")) == NULL) {
status = FALSE;
- perror_msg("Opening %s", dst_file);
+ perror_msg("Opening %s", dst_filename);
}
- copy_file_chunk(src_fd, dst_fd, src_stat_buf.st_size);
- close(src_fd);
- close(dst_fd);
+ copy_file_chunk(src_file, dst_file, src_stat_buf.st_size);
+ fclose(src_file);
+ fclose(dst_file);
} else {
status = FALSE;
- error_msg("couldnt open [%s]\n", src_file);
+ error_msg("couldnt open [%s]\n", src_filename);
}
}
}
strcat(tmp_name, pkg->package);
/* extract control.tar.gz to the full extraction path */
- deb_extract(dpkg_deb_control, tmp_name, pkg->file);
+ deb_extract(pkg->file, dpkg_deb_control, tmp_name);
/* parse the extracted control file */
strcat(tmp_name, "/control");
strcpy(target_dir, argv[optind + 1]);
}
}
- deb_extract(optflag, target_dir, argv[optind]);
+ deb_extract(argv[optind], optflag, target_dir);
/* else if (optflag & dpkg_deb_info) {
extract_flag = TRUE;
extract_to_stdout = TRUE;
add_to_ino_dev_hashtable(statbuf, destName);
}
}
- return copy_file(fileName, destName, preserveFlag, followLinks, forceFlag);
+ return copy_file(fileName, destName, preserveFlag, followLinks, forceFlag, FALSE);
}
static int
int r = 0, i;
int status = TRUE;
char *cwd = xgetcwd(0);
- char *src_file = NULL;
- char *dst_file = NULL;
+ char *src_filename = NULL;
+ char *dst_filename = NULL;
// char *lst_file = NULL;
char *adminscripts[] = { "prerm", "postrm", "preinst", "postinst",
"conffiles", "md5sums", "shlibs", "templates" };
if(cwd==NULL)
exit(EXIT_FAILURE);
chdir("/");
- deb_extract(dpkg_deb_extract, "/", pkg->file);
+ deb_extract(pkg->file, dpkg_deb_extract, "/");
/* Installs the package scripts into the info directory */
for (i = 0; i < sizeof(adminscripts) / sizeof(adminscripts[0]); i++) {
struct stat src_stat_buf;
- int src_fd = 0, dst_fd = 0;
+ FILE *src_file = NULL, *dst_file = NULL;
/* The full path of the current location of the admin file */
- src_file = xrealloc(src_file, strlen(dpkgcidir) + strlen(pkg->package) + strlen(adminscripts[i]) + 1);
- sprintf(src_file, "%s%s/%s", dpkgcidir, pkg->package, adminscripts[i]);
+ src_filename = xrealloc(src_filename, strlen(dpkgcidir) + strlen(pkg->package) + strlen(adminscripts[i]) + 1);
+ sprintf(src_filename, "%s%s/%s", dpkgcidir, pkg->package, adminscripts[i]);
/* the full path of where we want the file to be copied to */
- dst_file = xrealloc(dst_file, strlen(infodir) + strlen(pkg->package) + strlen(adminscripts[i]) + 1);
- sprintf(dst_file, "%s%s.%s", infodir, pkg->package, adminscripts[i]);
+ dst_filename = xrealloc(dst_filename, strlen(infodir) + strlen(pkg->package) + strlen(adminscripts[i]) + 1);
+ sprintf(dst_filename, "%s%s.%s", infodir, pkg->package, adminscripts[i]);
/*
* copy admin file to permanent home
* NOTE: Maybe merge this behaviour into libb/copy_file.c
*/
- if (lstat(src_file, &src_stat_buf) == 0) {
- if ((src_fd = open(src_file, O_RDONLY)) != -1) {
- if ((dst_fd = open(dst_file, O_WRONLY | O_CREAT, 0644)) == -1) {
+ if (lstat(src_filename, &src_stat_buf) == 0) {
+ if ((src_file = wfopen(src_filename, "r")) != NULL) {
+ if ((dst_file = wfopen(dst_filename, "w")) == NULL) {
status = FALSE;
- perror_msg("Opening %s", dst_file);
+ perror_msg("Opening %s", dst_filename);
}
- copy_file_chunk(src_fd, dst_fd, src_stat_buf.st_size);
- close(src_fd);
- close(dst_fd);
+ copy_file_chunk(src_file, dst_file, src_stat_buf.st_size);
+ fclose(src_file);
+ fclose(dst_file);
} else {
status = FALSE;
- error_msg("couldnt open [%s]\n", src_file);
+ error_msg("couldnt open [%s]\n", src_filename);
}
}
}
strcat(tmp_name, pkg->package);
/* extract control.tar.gz to the full extraction path */
- deb_extract(dpkg_deb_control, tmp_name, pkg->file);
+ deb_extract(pkg->file, dpkg_deb_control, tmp_name);
/* parse the extracted control file */
strcat(tmp_name, "/control");
strcpy(target_dir, argv[optind + 1]);
}
}
- deb_extract(optflag, target_dir, argv[optind]);
+ deb_extract(argv[optind], optflag, target_dir);
/* else if (optflag & dpkg_deb_info) {
extract_flag = TRUE;
extract_to_stdout = TRUE;
void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name);
void reset_ino_dev_hashtable(void);
-int copy_file(const char *srcName, const char *destName,
- int setModes, int followLinks, int forceFlag);
-int copy_file_chunk(int srcFd, int dstFd, off_t remaining);
+int copy_file(const char *src_name, const char *dst_name,
+ int set_modes, int follow_links, int force_flag, int quiet_flag);
+int copy_file_chunk(FILE *src_file, FILE *dst_file, off_t chunksize);
char *buildName(const char *dirName, const char *fileName);
int makeString(int argc, const char **argv, char *buf, int bufLen);
char *getChunk(int size);
off_t offset;
struct ar_headers_s *next;
} ar_headers_t;
-extern ar_headers_t get_ar_headers(int srcFd);
-extern int deb_extract(int optflags, const char *dir_name, const char *deb_filename);
-
+extern ar_headers_t *get_ar_headers(FILE *in_file);
+extern int seek_ared_file(FILE *in_file, ar_headers_t *headers, const char *tar_gz_file);
+extern int deb_extract(const char *package_filename, const int function, char *target_dir);
+extern int untar(FILE *src_tar_file, int untar_function, char *base_path);
extern int unzip(FILE *l_in_file, FILE *l_out_file);
extern void gz_close(int gunzip_pid);
extern int gz_open(FILE *compressed_file, int *pid);
+
#endif /* __LIBBB_H__ */
* -Erik Andersen
*/
int
-copy_file(const char *srcName, const char *destName,
- int setModes, int followLinks, int forceFlag)
+copy_file(const char *src_name, const char *dst_name,
+ int set_modes, int follow_links, int force_flag, int quiet_flag)
{
- int rfd;
- int wfd;
- int status;
+ FILE *src_file = NULL;
+ FILE *dst_file = NULL;
struct stat srcStatBuf;
struct stat dstStatBuf;
struct utimbuf times;
+ int src_status;
+ int dst_status;
+
+ if (follow_links == TRUE) {
+ src_status = stat(src_name, &srcStatBuf);
+ dst_status = stat(dst_name, &dstStatBuf);
+ } else {
+ src_status = lstat(src_name, &srcStatBuf);
+ dst_status = lstat(dst_name, &dstStatBuf);
+ }
- if (followLinks == TRUE)
- status = stat(srcName, &srcStatBuf);
- else
- status = lstat(srcName, &srcStatBuf);
-
- if (status < 0) {
- perror_msg("%s", srcName);
+ if (src_status < 0) {
+ if (!quiet_flag) {
+ perror_msg("%s", src_name);
+ }
return FALSE;
}
- if (followLinks == TRUE)
- status = stat(destName, &dstStatBuf);
- else
- status = lstat(destName, &dstStatBuf);
-
- if (status < 0 || forceFlag==TRUE) {
- unlink(destName);
+ if ((dst_status < 0) || force_flag) {
+ unlink(dst_name);
dstStatBuf.st_ino = -1;
dstStatBuf.st_dev = -1;
}
if ((srcStatBuf.st_dev == dstStatBuf.st_dev) &&
(srcStatBuf.st_ino == dstStatBuf.st_ino)) {
- error_msg("Copying file \"%s\" to itself", srcName);
+ if (!quiet_flag) {
+ error_msg("Copying file \"%s\" to itself", src_name);
+ }
return FALSE;
}
if (S_ISDIR(srcStatBuf.st_mode)) {
//fprintf(stderr, "copying directory %s to %s\n", srcName, destName);
/* Make sure the directory is writable */
- status = mkdir(destName, 0777777 ^ umask(0));
- if (status < 0 && errno != EEXIST) {
- perror_msg("%s", destName);
+ dst_status = create_path(dst_name, 0777777 ^ umask(0));
+ if ((dst_status < 0) && (errno != EEXIST)) {
+ if (!quiet_flag) {
+ perror_msg("%s", dst_name);
+ }
return FALSE;
}
} else if (S_ISLNK(srcStatBuf.st_mode)) {
//fprintf(stderr, "copying link %s to %s\n", srcName, destName);
/* Warning: This could possibly truncate silently, to BUFSIZ chars */
- link_size = readlink(srcName, &link_val[0], BUFSIZ);
+ link_size = readlink(src_name, &link_val[0], BUFSIZ);
if (link_size < 0) {
- perror_msg("%s", srcName);
+ if (quiet_flag) {
+ perror_msg("%s", src_name);
+ }
return FALSE;
}
link_val[link_size] = '\0';
- status = symlink(link_val, destName);
- if (status < 0) {
- perror_msg("%s", destName);
+ src_status = symlink(link_val, dst_name);
+ if (src_status < 0) {
+ if (!quiet_flag) {
+ perror_msg("%s", dst_name);
+ }
return FALSE;
}
#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
- if (setModes == TRUE) {
+ if (set_modes == TRUE) {
/* Try to set owner, but fail silently like GNU cp */
- lchown(destName, srcStatBuf.st_uid, srcStatBuf.st_gid);
+ lchown(dst_name, srcStatBuf.st_uid, srcStatBuf.st_gid);
}
#endif
return TRUE;
} else if (S_ISFIFO(srcStatBuf.st_mode)) {
//fprintf(stderr, "copying fifo %s to %s\n", srcName, destName);
- if (mkfifo(destName, 0644) < 0) {
- perror_msg("%s", destName);
+ if (mkfifo(dst_name, 0644) < 0) {
+ if (!quiet_flag) {
+ perror_msg("%s", dst_name);
+ }
return FALSE;
}
} else if (S_ISBLK(srcStatBuf.st_mode) || S_ISCHR(srcStatBuf.st_mode)
|| S_ISSOCK(srcStatBuf.st_mode)) {
//fprintf(stderr, "copying soc, blk, or chr %s to %s\n", srcName, destName);
- if (mknod(destName, srcStatBuf.st_mode, srcStatBuf.st_rdev) < 0) {
- perror_msg("%s", destName);
+ if (mknod(dst_name, srcStatBuf.st_mode, srcStatBuf.st_rdev) < 0) {
+ if (!quiet_flag) {
+ perror_msg("%s", dst_name);
+ }
return FALSE;
}
} else if (S_ISREG(srcStatBuf.st_mode)) {
//fprintf(stderr, "copying regular file %s to %s\n", srcName, destName);
- rfd = open(srcName, O_RDONLY);
- if (rfd < 0) {
- perror_msg("%s", srcName);
+ src_file = fopen(src_name, "r");
+ if (src_file == NULL) {
+ if (!quiet_flag) {
+ perror_msg("%s", src_name);
+ }
return FALSE;
}
- wfd = open(destName, O_WRONLY | O_CREAT | O_TRUNC,
- srcStatBuf.st_mode);
- if (wfd < 0) {
- perror_msg("%s", destName);
- close(rfd);
+ dst_file = fopen(dst_name, "w");
+ if (dst_file == NULL) {
+ if (!quiet_flag) {
+ perror_msg("%s", dst_name);
+ }
+ fclose(src_file);
return FALSE;
}
- if (copy_file_chunk(rfd, wfd, srcStatBuf.st_size)==FALSE)
- goto error_exit;
-
- close(rfd);
- if (close(wfd) < 0) {
+ if (copy_file_chunk(src_file, dst_file, srcStatBuf.st_size)==FALSE) {
+ goto error_exit;
+ }
+
+ fclose(src_file);
+ if (fclose(dst_file) < 0) {
return FALSE;
}
}
- if (setModes == TRUE) {
+ if (set_modes == TRUE) {
/* This is fine, since symlinks never get here */
- if (chown(destName, srcStatBuf.st_uid, srcStatBuf.st_gid) < 0)
- perror_msg_and_die("%s", destName);
- if (chmod(destName, srcStatBuf.st_mode) < 0)
- perror_msg_and_die("%s", destName);
+ if (chown(dst_name, srcStatBuf.st_uid, srcStatBuf.st_gid) < 0)
+ perror_msg("%s", dst_name);
+ if (chmod(dst_name, srcStatBuf.st_mode) < 0)
+ perror_msg("%s", dst_name);
times.actime = srcStatBuf.st_atime;
times.modtime = srcStatBuf.st_mtime;
- if (utime(destName, ×) < 0)
- perror_msg_and_die("%s", destName);
+ if (utime(dst_name, ×) < 0)
+ perror_msg("%s", dst_name);
}
return TRUE;
- error_exit:
- perror_msg("%s", destName);
- close(rfd);
- close(wfd);
+error_exit:
+ perror_msg("%s", dst_name);
+ fclose(src_file);
+ fclose(dst_file);
return FALSE;
}
/*
* Copy chunksize bytes between two file descriptors
*/
-int copy_file_chunk(int srcfd, int dstfd, off_t chunksize)
+extern int copy_file_chunk(FILE *src_file, FILE *dst_file, off_t chunksize)
{
- off_t size;
- char buffer[BUFSIZ]; /* BUFSIZ is declared in stdio.h */
-
- while (chunksize > 0) {
- if (chunksize > BUFSIZ)
- size = BUFSIZ;
- else
- size = chunksize;
- if (full_write(dstfd, buffer, full_read(srcfd, buffer, size)) < size)
- return(FALSE);
- chunksize -= size;
- }
- return (TRUE);
+ off_t size, amount_written;
+ char buffer[BUFSIZ]; /* BUFSIZ is declared in stdio.h */
+
+ clearerr(src_file);
+ clearerr(dst_file);
+ while (chunksize > 0) {
+ if (chunksize > BUFSIZ) {
+ size = BUFSIZ;
+ } else {
+ size = chunksize;
+ }
+ amount_written = fwrite(buffer, 1, fread(buffer, 1, size, src_file), dst_file);
+ if (amount_written != size) {
+ error_msg("Couldnt write correct amount");
+ return(FALSE);
+ }
+ chunksize -= amount_written;
+ }
+ return (TRUE);
}
-
/* END CODE */
/*
Local Variables:
#include <signal.h>
#include "libbb.h"
-/* From gunzip.c */
-extern int gz_open(FILE *compressed_file, int *pid);
-extern void gz_close(int gunzip_pid);
+const int dpkg_deb_contents = 1;
+const int dpkg_deb_control = 2;
+const int dpkg_deb_info = 4;
+const int dpkg_deb_extract = 8;
+const int dpkg_deb_verbose_extract = 16;
+const int dpkg_deb_list = 32;
-extern int tar_unzip_init(int tarFd);
-extern int readTarFile(int tarFd, int extractFlag, int listFlag,
- int tostdoutFlag, int verboseFlag, char** extractList, char** excludeList);
-
-extern int deb_extract(int optflags, const char *dir_name, const char *deb_filename)
+extern int deb_extract(const char *package_filename, const int function, char *target_dir)
{
- const int dpkg_deb_contents = 1;
- const int dpkg_deb_control = 2;
-// const int dpkg_deb_info = 4;
- const int dpkg_deb_extract = 8;
- const int dpkg_deb_verbose_extract = 16;
- const int dpkg_deb_list = 32;
- char **extract_list = NULL;
- ar_headers_t *ar_headers = NULL;
- char ar_filename[15];
- int extract_flag = FALSE;
- int list_flag = FALSE;
- int verbose_flag = FALSE;
- int extract_to_stdout = FALSE;
- int srcFd = 0;
- int status;
- pid_t pid;
- FILE *comp_file = NULL;
+ FILE *deb_file, *uncompressed_file;
+ ar_headers_t *headers = NULL;
+ char *ared_file;
+ int gunzip_pid;
- if (dpkg_deb_contents == (dpkg_deb_contents & optflags)) {
- strcpy(ar_filename, "data.tar.gz");
- verbose_flag = TRUE;
- list_flag = TRUE;
- }
- if (dpkg_deb_list == (dpkg_deb_list & optflags)) {
- strcpy(ar_filename, "data.tar.gz");
- list_flag = TRUE;
- }
- if (dpkg_deb_control == (dpkg_deb_control & optflags)) {
- strcpy(ar_filename, "control.tar.gz");
- extract_flag = TRUE;
- }
- if (dpkg_deb_extract == (dpkg_deb_extract & optflags)) {
- strcpy(ar_filename, "data.tar.gz");
- extract_flag = TRUE;
- }
- if (dpkg_deb_verbose_extract == (dpkg_deb_verbose_extract & optflags)) {
- strcpy(ar_filename, "data.tar.gz");
- extract_flag = TRUE;
- list_flag = TRUE;
+ if ((function == dpkg_deb_info) || (function == dpkg_deb_control)) {
+ ared_file = xstrdup("control.tar.gz");
+ } else {
+ ared_file = xstrdup("data.tar.gz");
}
- ar_headers = (ar_headers_t *) xmalloc(sizeof(ar_headers_t));
- srcFd = open(deb_filename, O_RDONLY);
+ /* open the debian package to be worked on */
+ deb_file = wfopen(package_filename, "r");
+
+ headers = (ar_headers_t *) xmalloc(sizeof(ar_headers_t));
- *ar_headers = get_ar_headers(srcFd);
- if (ar_headers->next == NULL) {
- error_msg_and_die("Couldnt find %s in %s", ar_filename, deb_filename);
+ /* get a linked list of all ar entries */
+ if ((headers = get_ar_headers(deb_file)) == NULL) {
+ error_msg("Couldnt get ar headers\n");
+ return(EXIT_FAILURE);
}
- while (ar_headers->next != NULL) {
- if (strcmp(ar_headers->name, ar_filename) == 0) {
- break;
- }
- ar_headers = ar_headers->next;
+ /* seek to the start of the .tar.gz file within the ar file*/
+ if (seek_ared_file(deb_file, headers, ared_file) == EXIT_FAILURE) {
+ error_msg("Couldnt seek to ar file");
}
- lseek(srcFd, ar_headers->offset, SEEK_SET);
- /* Uncompress the file */
- comp_file = fdopen(srcFd, "r");
- if ((srcFd = gz_open(comp_file, &pid)) == EXIT_FAILURE) {
- error_msg_and_die("Couldnt unzip file");
- }
- if ( dir_name != NULL) {
- if (is_directory(dir_name, TRUE, NULL)==FALSE) {
- mkdir(dir_name, 0755);
- }
- if (chdir(dir_name)==-1) {
- error_msg_and_die("Cannot change to dir %s", dir_name);
- }
- }
- status = readTarFile(srcFd, extract_flag, list_flag,
- extract_to_stdout, verbose_flag, NULL, extract_list);
+
+ /* open a stream of decompressed data */
+ uncompressed_file = fdopen(gz_open(deb_file, &gunzip_pid), "r");
+
+ /* get a list of all tar headers inside the .gz file */
+ untar(uncompressed_file, dpkg_deb_extract, target_dir);
/* we are deliberately terminating the child so we can safely ignore this */
signal(SIGTERM, SIG_IGN);
- gz_close(pid);
- close(srcFd);
- fclose(comp_file);
-
- return status;
+ gz_close(gunzip_pid);
+ fclose(deb_file);
+ fclose(uncompressed_file);
+ return(EXIT_SUCCESS);
}
\ No newline at end of file
#include <unistd.h>
#include "libbb.h"
-extern ar_headers_t get_ar_headers(int srcFd)
+extern ar_headers_t *get_ar_headers(FILE *in_file)
{
typedef struct raw_ar_header_s { /* Byte Offset */
char name[16]; /* 0-15 */
raw_ar_header_t raw_ar_header;
- ar_headers_t *head, *entry;
+ ar_headers_t *ar_list, *ar_tmp, *ar_entry;
char ar_magic[8];
char *long_name=NULL;
- head = (ar_headers_t *) xmalloc(sizeof(ar_headers_t));
- entry = (ar_headers_t *) xmalloc(sizeof(ar_headers_t));
-
/* check ar magic */
- if (full_read(srcFd, ar_magic, 8) != 8) {
- error_msg_and_die("cannot read magic");
+ if (fread(ar_magic, 1, 8, in_file) != 8) {
+ error_msg("cannot read magic");
+ return(NULL);
}
if (strncmp(ar_magic,"!<arch>",7) != 0) {
- error_msg_and_die("invalid magic");
+ error_msg("invalid magic");
+ return(NULL);
}
+
+ ar_list = (ar_headers_t *) xcalloc(1, sizeof(ar_headers_t));
- while (full_read(srcFd, (char *) &raw_ar_header, 60)==60) {
+ while (fread((char *) &raw_ar_header, 1, 60, in_file) == 60) {
+ ar_entry = (ar_headers_t *) xcalloc(1, sizeof(ar_headers_t));
/* check the end of header markers are valid */
- if ((raw_ar_header.fmag[0]!='`') || (raw_ar_header.fmag[1]!='\n')) {
+ if ((raw_ar_header.fmag[0] != '`') || (raw_ar_header.fmag[1] != '\n')) {
char newline;
- if (raw_ar_header.fmag[1]!='`') {
+ if (raw_ar_header.fmag[1] != '`') {
break;
}
/* some version of ar, have an extra '\n' after each entry */
- read(srcFd, &newline, 1);
+ fread(&newline, 1, 1, in_file);
if (newline!='\n') {
break;
}
/* dont worry about adding the last '\n', we dont need it now */
}
- entry->size = (off_t) atoi(raw_ar_header.size);
+ ar_entry->size = (size_t) atoi(raw_ar_header.size);
/* long filenames have '/' as the first character */
if (raw_ar_header.name[0] == '/') {
if (raw_ar_header.name[1] == '/') {
/* multiple long filenames are stored as data in one entry */
- long_name = (char *) xrealloc(long_name, entry->size);
- full_read(srcFd, long_name, entry->size);
+ long_name = (char *) xrealloc(long_name, ar_entry->size);
+ fread(long_name, 1, ar_entry->size, in_file);
continue;
}
else {
/* The number after the '/' indicates the offset in the ar data section
(saved in variable long_name) that conatains the real filename */
const int long_name_offset = (int) atoi((char *) &raw_ar_header.name[1]);
- entry->name = xmalloc(strlen(&long_name[long_name_offset]));
- strcpy(entry->name, &long_name[long_name_offset]);
+ ar_entry->name = xmalloc(strlen(&long_name[long_name_offset]));
+ strcpy(ar_entry->name, &long_name[long_name_offset]);
}
}
else {
/* short filenames */
- entry->name = xmalloc(16);
- strncpy(entry->name, raw_ar_header.name, 16);
+ ar_entry->name = xmalloc(16);
+ ar_entry->name = strncpy(ar_entry->name, raw_ar_header.name, 16);
}
- entry->name[strcspn(entry->name, " /")]='\0';
+ ar_entry->name[strcspn(ar_entry->name, " /")]='\0';
/* convert the rest of the now valid char header to its typed struct */
- parse_mode(raw_ar_header.mode, &entry->mode);
- entry->mtime = atoi(raw_ar_header.date);
- entry->uid = atoi(raw_ar_header.uid);
- entry->gid = atoi(raw_ar_header.gid);
- entry->offset = lseek(srcFd, 0, SEEK_CUR);
+ parse_mode(raw_ar_header.mode, &ar_entry->mode);
+ ar_entry->mtime = atoi(raw_ar_header.date);
+ ar_entry->uid = atoi(raw_ar_header.uid);
+ ar_entry->gid = atoi(raw_ar_header.gid);
+ ar_entry->offset = ftell(in_file);
+ ar_entry->next = NULL;
- /* add this entries header to our combined list */
- entry->next = (ar_headers_t *) xmalloc(sizeof(ar_headers_t));
- *entry->next = *head;
- *head = *entry;
- lseek(srcFd, (off_t) entry->size, SEEK_CUR);
+ fseek(in_file, (off_t) ar_entry->size, SEEK_CUR);
+
+ ar_tmp = (ar_headers_t *) xcalloc(1, sizeof(ar_headers_t));
+ *ar_tmp = *ar_list;
+ *ar_list = *ar_entry;
+ free(ar_entry);
+ ar_list->next = ar_tmp;
}
- return(*head);
-}
\ No newline at end of file
+
+ return(ar_list);
+}
void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name);
void reset_ino_dev_hashtable(void);
-int copy_file(const char *srcName, const char *destName,
- int setModes, int followLinks, int forceFlag);
-int copy_file_chunk(int srcFd, int dstFd, off_t remaining);
+int copy_file(const char *src_name, const char *dst_name,
+ int set_modes, int follow_links, int force_flag, int quiet_flag);
+int copy_file_chunk(FILE *src_file, FILE *dst_file, off_t chunksize);
char *buildName(const char *dirName, const char *fileName);
int makeString(int argc, const char **argv, char *buf, int bufLen);
char *getChunk(int size);
off_t offset;
struct ar_headers_s *next;
} ar_headers_t;
-extern ar_headers_t get_ar_headers(int srcFd);
-extern int deb_extract(int optflags, const char *dir_name, const char *deb_filename);
-
+extern ar_headers_t *get_ar_headers(FILE *in_file);
+extern int seek_ared_file(FILE *in_file, ar_headers_t *headers, const char *tar_gz_file);
+extern int deb_extract(const char *package_filename, const int function, char *target_dir);
+extern int untar(FILE *src_tar_file, int untar_function, char *base_path);
extern int unzip(FILE *l_in_file, FILE *l_out_file);
extern void gz_close(int gunzip_pid);
extern int gz_open(FILE *compressed_file, int *pid);
+
#endif /* __LIBBB_H__ */
projects / oweals / busybox.git / commitdiff