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/*
** Copyright 1998-2003 University of Illinois Board of Trustees
** Copyright 1998-2003 Mark D. Roth
** All rights reserved.
**
** wrapper.c - libtar high-level wrapper code
**
** Mark D. Roth <roth@uiuc.edu>
** Campus Information Technologies and Educational Services
** University of Illinois at Urbana-Champaign
*/
#define DEBUG
#include <internal.h>
#include <stdio.h>
#include <sys/param.h>
#include <dirent.h>
#include <errno.h>
#include <stdlib.h>
#ifdef STDC_HEADERS
# include <string.h>
#endif
int
tar_extract_glob(TAR *t, char *globname, char *prefix)
{
char *filename;
char buf[MAXPATHLEN];
int i;
while ((i = th_read(t)) == 0)
{
filename = th_get_pathname(t);
if (fnmatch(globname, filename, FNM_PATHNAME | FNM_PERIOD))
{
if (TH_ISREG(t) && tar_skip_regfile(t))
return -1;
continue;
}
if (t->options & TAR_VERBOSE)
th_print_long_ls(t);
if (prefix != NULL)
snprintf(buf, sizeof(buf), "%s/%s", prefix, filename);
else
strlcpy(buf, filename, sizeof(buf));
if (tar_extract_file(t, filename, prefix) != 0)
return -1;
}
return (i == 1 ? 0 : -1);
}
int
tar_extract_all(TAR *t, char *prefix)
{
char *filename;
char buf[MAXPATHLEN];
int i;
printf("prefix: %s\n", prefix);
#ifdef DEBUG
printf("==> tar_extract_all(TAR *t, \"%s\")\n",
(prefix ? prefix : "(null)"));
#endif
while ((i = th_read(t)) == 0)
{
#ifdef DEBUG
puts(" tar_extract_all(): calling th_get_pathname()");
#endif
filename = th_get_pathname(t);
if (t->options & TAR_VERBOSE)
th_print_long_ls(t);
if (prefix != NULL)
snprintf(buf, sizeof(buf), "%s/%s", prefix, filename);
else
strlcpy(buf, filename, sizeof(buf));
#ifdef DEBUG
printf(" tar_extract_all(): calling tar_extract_file(t, "
"\"%s\")\n", buf);
#endif
printf("item name: '%s'\n", filename);
/*
if (strcmp(filename, "/") == 0) {
printf("skipping /\n");
continue;
}
*/
if (tar_extract_file(t, buf, prefix) != 0)
return -1;
}
return (i == 1 ? 0 : -1);
}
int
tar_append_tree(TAR *t, char *realdir, char *savedir, char *exclude)
{
#ifdef DEBUG
printf("==> tar_append_tree(0x%lx, \"%s\", \"%s\")\n",
(long unsigned int)t, realdir, (savedir ? savedir : "[NULL]"));
#endif
char temp[1024];
int skip = 0, i, n_spaces = 0;
char ** excluded = NULL;
char * p = NULL;
if (exclude) {
strcpy(temp, exclude);
p = strtok(exclude, " ");
if (p == NULL) {
excluded = realloc(excluded, sizeof(char*) * (++n_spaces));
excluded[0] = temp;
} else {
while (p) {
excluded = realloc(excluded, sizeof(char*) * (++n_spaces));
excluded[n_spaces-1] = p;
p = strtok(NULL, " ");
}
}
excluded = realloc(excluded, sizeof(char*) * (n_spaces+1));
excluded[n_spaces] = 0;
for (i = 0; i < (n_spaces+1); i++) {
if (realdir == excluded[i]) {
printf(" excluding '%s'\n", excluded[i]);
skip = 1;
break;
}
}
}
if (skip == 0) {
if (tar_append_file(t, realdir, savedir) != 0)
return -1;
}
char realpath[MAXPATHLEN];
char savepath[MAXPATHLEN];
struct dirent *dent;
DIR *dp;
struct stat s;
dp = opendir(realdir);
if (dp == NULL) {
if (errno == ENOTDIR)
return 0;
return -1;
}
while ((dent = readdir(dp)) != NULL) {
if(strcmp(dent->d_name, ".") == 0
|| strcmp(dent->d_name, "..") == 0)
continue;
if (exclude) {
int omit = 0;
for (i = 0; i < (n_spaces+1); i++) {
if (excluded[i] != NULL) {
if (strcmp(dent->d_name, excluded[i]) == 0 || strcmp(excluded[i], realdir) == 0) {
printf(" excluding '%s'\n", excluded[i]);
omit = 1;
break;
}
}
}
if (omit)
continue;
}
snprintf(realpath, MAXPATHLEN, "%s/%s", realdir, dent->d_name);
if (savedir)
snprintf(savepath, MAXPATHLEN, "%s/%s", savedir, dent->d_name);
if (lstat(realpath, &s) != 0)
return -1;
if (S_ISDIR(s.st_mode)) {
if (tar_append_tree(t, realpath, (savedir ? savepath : NULL), (exclude ? exclude : NULL)) != 0)
return -1;
continue;
} else {
if (tar_append_file(t, realpath, (savedir ? savepath : NULL)) != 0)
return -1;
continue;
}
}
closedir(dp);
free(excluded);
return 0;
}
int
tar_find(TAR *t, char *searchstr)
{
if (!searchstr)
return 0;
char *filename;
int i, entryfound = 0;
#ifdef DEBUG
printf("==> tar_find(0x%lx, %s)\n", (long unsigned int)t, searchstr);
#endif
while ((i = th_read(t)) == 0) {
filename = th_get_pathname(t);
if (fnmatch(searchstr, filename, FNM_FILE_NAME | FNM_PERIOD) == 0) {
entryfound++;
#ifdef DEBUG
printf("Found matching entry: %s\n", filename);
#endif
break;
}
}
#ifdef DEBUG
if (!entryfound)
printf("No matching entry found.\n");
#endif
return entryfound;
}
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