/* file_util.c - convenience routines for common stat operations
- Carl D. Worth
+ 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
General Public License for more details.
*/
-#include "includes.h"
+#include "config.h"
+
+#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
+#include <unistd.h>
+#include <ctype.h>
#include "sprintf_alloc.h"
#include "file_util.h"
+#ifdef HAVE_MD5
#include "md5.h"
+#endif
#include "libbb/libbb.h"
-#undef strlen
#if defined HAVE_SHA256
#include "sha256.h"
#endif
-int
-file_exists(const char *file_name)
+int file_exists(const char *file_name)
{
struct stat st;
return 1;
}
-int
-file_is_dir(const char *file_name)
+int file_is_dir(const char *file_name)
{
struct stat st;
Return value is NULL if the file is at EOF when called.
*/
-char *
-file_read_line_alloc(FILE *fp)
+char *file_read_line_alloc(FILE * fp)
{
char buf[BUFSIZ];
unsigned int buf_len;
}
if (line) {
line_size += buf_len;
- line = xrealloc(line, line_size+1);
+ line = xrealloc(line, line_size + 1);
strncat(line, buf, line_size);
} else {
line_size = buf_len + 1;
return line;
}
-int
-file_move(const char *src, const char *dest)
+int file_move(const char *src, const char *dest)
{
int err;
unlink(src);
} else {
opkg_perror(ERROR, "Failed to rename %s to %s",
- src, dest);
+ src, dest);
}
}
return err;
}
-int
-file_copy(const char *src, const char *dest)
+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);
+ opkg_msg(ERROR, "Failed to copy file %s to %s.\n", src, dest);
return err;
}
-int
-file_mkdir_hier(const char *path, long mode)
+int file_mkdir_hier(const char *path, long mode)
{
return make_directory(path, mode, FILEUTILS_RECUR);
}
+#ifdef HAVE_MD5
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);
+ 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);
- 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;
+
+ 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;
}
+#endif
#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);
+ 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);
- 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;
+
+ 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
+char *checksum_bin2hex(const char *src, size_t len)
+{
+ unsigned char *p;
+ static unsigned char buf[65];
+ const unsigned char *s = (unsigned char *)src;
+ static const unsigned char bin2hex[16] = {
+ '0', '1', '2', '3',
+ '4', '5', '6', '7',
+ '8', '9', 'a', 'b',
+ 'c', 'd', 'e', 'f'
+ };
+
+ if (!s || len > 32)
+ return NULL;
+
+ for (p = buf; len > 0; s++, len--) {
+ *p++ = bin2hex[*s / 16];
+ *p++ = bin2hex[*s % 16];
+ }
+
+ *p = 0;
+
+ return (char *)buf;
+}
+
+char *checksum_hex2bin(const char *src, size_t *len)
+{
+ size_t slen;
+ unsigned char *p;
+ const unsigned char *s = (unsigned char *)src;
+ static unsigned char buf[32];
+
+ if (!src) {
+ *len = 0;
+ return NULL;
+ }
+
+ while (isspace(*src))
+ src++;
-int
-rm_r(const char *path)
+ slen = strlen(src);
+
+ if (slen > 64) {
+ *len = 0;
+ return NULL;
+ }
+
+#define hex(c) \
+ (c >= 'a' ? (c - 'a') : (c >= 'A' ? (c - 'A') : (c - '0')))
+
+ for (p = buf, *len = 0;
+ slen > 0 && isxdigit(s[0]) && isxdigit(s[1]);
+ slen--, s += 2, (*len)++)
+ *p++ = hex(s[0]) * 16 + hex(s[1]);
+
+ return (char *)buf;
+}
+
+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);
if ((dent = readdir(dir)) == NULL) {
if (errno) {
opkg_perror(ERROR, "Failed to read dir %s",
- path);
+ path);
ret = -1;
}
break;
struct stat st;
if ((ret = lstat(dent->d_name, &st)) == -1) {
opkg_perror(ERROR, "Failed to lstat %s",
- dent->d_name);
+ dent->d_name);
break;
}
if (S_ISDIR(st.st_mode)) {
opkg_perror(ERROR, "Failed to change to dir %s/..", path);
}
- if (rmdir(path) == -1 ) {
+ if (rmdir(path) == -1) {
ret = -1;
opkg_perror(ERROR, "Failed to remove dir %s", path);
}
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