From f431cd1a48a6a5186633bf5f16a2d21cb4399e8c Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pjm@nac.net>
Date: Thu, 09 Feb 2012 10:56:43 -0500
Subject: Initial commit.
TODO: Copyright information.
Including source code and a patch to add files generated by GNU Autoconf
is not very pretty... Running 'make dist' in the SVN trunk to generate
a source archive might be better.
---
(limited to 'src/libopkg/.svn/text-base/file_util.c.svn-base')
diff --git a/src/libopkg/.svn/text-base/file_util.c.svn-base b/src/libopkg/.svn/text-base/file_util.c.svn-base
new file mode 100644
index 0000000..897546e
--- /dev/null
+++ b/src/libopkg/.svn/text-base/file_util.c.svn-base
@@ -0,0 +1,315 @@
+/* file_util.c - convenience routines for common stat operations
+
+ Copyright (C) 2009 Ubiq Technologies <graham.gower@gmail.com>
+
+ Carl D. Worth
+ Copyright (C) 2001 University of Southern California
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2, or (at
+ your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+*/
+
+#include "config.h"
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <unistd.h>
+
+#include "sprintf_alloc.h"
+#include "file_util.h"
+#include "md5.h"
+#include "libbb/libbb.h"
+
+#if defined HAVE_SHA256
+#include "sha256.h"
+#endif
+
+int
+file_exists(const char *file_name)
+{
+ struct stat st;
+
+ if (stat(file_name, &st) == -1)
+ return 0;
+
+ return 1;
+}
+
+int
+file_is_dir(const char *file_name)
+{
+ struct stat st;
+
+ if (stat(file_name, &st) == -1)
+ return 0;
+
+ return S_ISDIR(st.st_mode);
+}
+
+/* read a single line from a file, stopping at a newline or EOF.
+ If a newline is read, it will appear in the resulting string.
+ Return value is a malloc'ed char * which should be freed at
+ some point by the caller.
+
+ Return value is NULL if the file is at EOF when called.
+*/
+char *
+file_read_line_alloc(FILE *fp)
+{
+ char buf[BUFSIZ];
+ unsigned int buf_len;
+ char *line = NULL;
+ unsigned int line_size = 0;
+ int got_nl = 0;
+
+ buf[0] = '\0';
+
+ while (fgets(buf, BUFSIZ, fp)) {
+ buf_len = strlen(buf);
+ if (buf[buf_len - 1] == '\n') {
+ buf_len--;
+ buf[buf_len] = '\0';
+ got_nl = 1;
+ }
+ if (line) {
+ line_size += buf_len;
+ line = xrealloc(line, line_size+1);
+ strncat(line, buf, line_size);
+ } else {
+ line_size = buf_len + 1;
+ line = xstrdup(buf);
+ }
+ if (got_nl)
+ break;
+ }
+
+ return line;
+}
+
+int
+file_move(const char *src, const char *dest)
+{
+ int err;
+
+ err = rename(src, dest);
+ if (err == -1) {
+ if (errno == EXDEV) {
+ /* src & dest live on different file systems */
+ err = file_copy(src, dest);
+ if (err == 0)
+ unlink(src);
+ } else {
+ opkg_perror(ERROR, "Failed to rename %s to %s",
+ src, dest);
+ }
+ }
+
+ return err;
+}
+
+int
+file_copy(const char *src, const char *dest)
+{
+ int err;
+
+ err = copy_file(src, dest, FILEUTILS_FORCE | FILEUTILS_PRESERVE_STATUS);
+ if (err)
+ opkg_msg(ERROR, "Failed to copy file %s to %s.\n",
+ src, dest);
+
+ return err;
+}
+
+int
+file_mkdir_hier(const char *path, long mode)
+{
+ return make_directory(path, mode, FILEUTILS_RECUR);
+}
+
+char *file_md5sum_alloc(const char *file_name)
+{
+ static const int md5sum_bin_len = 16;
+ static const int md5sum_hex_len = 32;
+
+ static const unsigned char bin2hex[16] = {
+ '0', '1', '2', '3',
+ '4', '5', '6', '7',
+ '8', '9', 'a', 'b',
+ 'c', 'd', 'e', 'f'
+ };
+
+ int i, err;
+ FILE *file;
+ char *md5sum_hex;
+ unsigned char md5sum_bin[md5sum_bin_len];
+
+ md5sum_hex = xcalloc(1, md5sum_hex_len + 1);
+
+ file = fopen(file_name, "r");
+ if (file == NULL) {
+ opkg_perror(ERROR, "Failed to open file %s", file_name);
+ free(md5sum_hex);
+ return NULL;
+ }
+
+ err = md5_stream(file, md5sum_bin);
+ if (err) {
+ opkg_msg(ERROR, "Could't compute md5sum for %s.\n", file_name);
+ fclose(file);
+ free(md5sum_hex);
+ return NULL;
+ }
+
+ fclose(file);
+
+ for (i=0; i < md5sum_bin_len; i++) {
+ md5sum_hex[i*2] = bin2hex[md5sum_bin[i] >> 4];
+ md5sum_hex[i*2+1] = bin2hex[md5sum_bin[i] & 0xf];
+ }
+
+ md5sum_hex[md5sum_hex_len] = '\0';
+
+ return md5sum_hex;
+}
+
+#ifdef HAVE_SHA256
+char *file_sha256sum_alloc(const char *file_name)
+{
+ static const int sha256sum_bin_len = 32;
+ static const int sha256sum_hex_len = 64;
+
+ static const unsigned char bin2hex[16] = {
+ '0', '1', '2', '3',
+ '4', '5', '6', '7',
+ '8', '9', 'a', 'b',
+ 'c', 'd', 'e', 'f'
+ };
+
+ int i, err;
+ FILE *file;
+ char *sha256sum_hex;
+ unsigned char sha256sum_bin[sha256sum_bin_len];
+
+ sha256sum_hex = xcalloc(1, sha256sum_hex_len + 1);
+
+ file = fopen(file_name, "r");
+ if (file == NULL) {
+ opkg_perror(ERROR, "Failed to open file %s", file_name);
+ free(sha256sum_hex);
+ return NULL;
+ }
+
+ err = sha256_stream(file, sha256sum_bin);
+ if (err) {
+ opkg_msg(ERROR, "Could't compute sha256sum for %s.\n", file_name);
+ fclose(file);
+ free(sha256sum_hex);
+ return NULL;
+ }
+
+ fclose(file);
+
+ for (i=0; i < sha256sum_bin_len; i++) {
+ sha256sum_hex[i*2] = bin2hex[sha256sum_bin[i] >> 4];
+ sha256sum_hex[i*2+1] = bin2hex[sha256sum_bin[i] & 0xf];
+ }
+
+ sha256sum_hex[sha256sum_hex_len] = '\0';
+
+ return sha256sum_hex;
+}
+
+#endif
+
+
+int
+rm_r(const char *path)
+{
+ int ret = 0;
+ DIR *dir;
+ struct dirent *dent;
+
+ if (path == NULL) {
+ opkg_perror(ERROR, "Missing directory parameter");
+ return -1;
+ }
+
+ dir = opendir(path);
+ if (dir == NULL) {
+ opkg_perror(ERROR, "Failed to open dir %s", path);
+ return -1;
+ }
+
+ if (fchdir(dirfd(dir)) == -1) {
+ opkg_perror(ERROR, "Failed to change to dir %s", path);
+ closedir(dir);
+ return -1;
+ }
+
+ while (1) {
+ errno = 0;
+ if ((dent = readdir(dir)) == NULL) {
+ if (errno) {
+ opkg_perror(ERROR, "Failed to read dir %s",
+ path);
+ ret = -1;
+ }
+ break;
+ }
+
+ if (!strcmp(dent->d_name, ".") || !strcmp(dent->d_name, ".."))
+ continue;
+
+#ifdef _BSD_SOURCE
+ if (dent->d_type == DT_DIR) {
+ if ((ret = rm_r(dent->d_name)) == -1)
+ break;
+ continue;
+ } else if (dent->d_type == DT_UNKNOWN)
+#endif
+ {
+ struct stat st;
+ if ((ret = lstat(dent->d_name, &st)) == -1) {
+ opkg_perror(ERROR, "Failed to lstat %s",
+ dent->d_name);
+ break;
+ }
+ if (S_ISDIR(st.st_mode)) {
+ if ((ret = rm_r(dent->d_name)) == -1)
+ break;
+ continue;
+ }
+ }
+
+ if ((ret = unlink(dent->d_name)) == -1) {
+ opkg_perror(ERROR, "Failed to unlink %s", dent->d_name);
+ break;
+ }
+ }
+
+ if (chdir("..") == -1) {
+ ret = -1;
+ opkg_perror(ERROR, "Failed to change to dir %s/..", path);
+ }
+
+ if (rmdir(path) == -1 ) {
+ ret = -1;
+ opkg_perror(ERROR, "Failed to remove dir %s", path);
+ }
+
+ if (closedir(dir) == -1) {
+ ret = -1;
+ opkg_perror(ERROR, "Failed to close dir %s", path);
+ }
+
+ return ret;
+}
--
cgit v0.9.1