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 <ctype.h>
#include "sprintf_alloc.h"
#include "file_util.h"
-#ifdef HAVE_MD5
-#include "md5.h"
-#endif
+#include <libubox/md5.h>
#include "libbb/libbb.h"
-#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)
{
+ size_t buf_len, line_size;
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') {
+ if (buf_len > 0 && 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);
+ 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 int hex2bin(unsigned char x)
{
- static const int md5sum_bin_len = 16;
- static const int md5sum_hex_len = 32;
+ if (x >= 'a' && x <= 'f')
+ return x - 'a' + 10;
+ else if (x >= 'A' && x <= 'F')
+ return x - 'A' + 10;
+ else if (x >= '0' && x <= '9')
+ return x - '0';
+ else
+ return 0;
+}
- static const unsigned char bin2hex[16] = {
+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];
+char *file_md5sum_alloc(const char *file_name)
+{
+ static const int md5sum_bin_len = 16;
+ static const int md5sum_hex_len = 32;
- md5sum_hex = xcalloc(1, md5sum_hex_len + 1);
+ int i, len;
+ char *md5sum_hex;
+ unsigned char md5sum_bin[md5sum_bin_len];
- file = fopen(file_name, "r");
- if (file == NULL) {
- opkg_perror(ERROR, "Failed to open file %s", file_name);
- free(md5sum_hex);
- return NULL;
- }
+ len = md5sum(file_name, md5sum_bin);
- 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;
- }
+ if (len) {
+ opkg_msg(ERROR, "Could't compute md5sum for %s.\n", file_name);
+ return NULL;
+ }
- fclose(file);
+ md5sum_hex = xcalloc(1, md5sum_hex_len + 1);
- 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];
- }
+ 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';
+ md5sum_hex[md5sum_hex_len] = '\0';
- return md5sum_hex;
+ 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 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];
- int i, err;
- FILE *file;
- char *sha256sum_hex;
- unsigned char sha256sum_bin[sha256sum_bin_len];
+ sha256sum_hex = xcalloc(1, sha256sum_hex_len + 1);
- 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;
+ }
- 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;
+ }
- 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];
+ }
- 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';
- sha256sum_hex[sha256sum_hex_len] = '\0';
+ return sha256sum_hex;
+}
- return sha256sum_hex;
+char *checksum_bin2hex(const char *src, size_t len)
+{
+ unsigned char *p;
+ static unsigned char buf[65];
+ const unsigned char *s = (unsigned char *)src;
+ 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;
}
-#endif
+char *checksum_hex2bin(const char *src, size_t *len)
+{
+ static unsigned char buf[32];
+ size_t n = 0;
+
+ *len = 0;
+
+ if (!src)
+ return NULL;
+ while (isspace(*src))
+ src++;
-int
-rm_r(const char *path)
+ if (strlen(src) > sizeof(buf) * 2)
+ return NULL;
+
+ while (*src) {
+ if (n >= sizeof(buf) || !isxdigit(src[0]) || !isxdigit(src[1]))
+ return NULL;
+
+ buf[n++] = hex2bin(src[0]) * 16 + hex2bin(src[1]);
+ src += 2;
+ }
+
+ *len = n;
+ return n ? (char *)buf : NULL;
+}
+
+int rm_r(const char *path)
{
int ret = 0;
DIR *dir;
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);
}
return ret;
}
+
+static int urlencode_is_specialchar(char c)
+{
+ switch (c) {
+ case ':':
+ case '?':
+ case '#':
+ case '[':
+ case ']':
+ case '@':
+ case '!':
+ case '$':
+ case '&':
+ case '\'':
+ case '(':
+ case ')':
+ case '*':
+ case '+':
+ case ',':
+ case ';':
+ case '=':
+ case '%':
+ return 1;
+
+ default:
+ return 0;
+ }
+}
+
+char *urlencode_path(const char *filename)
+{
+ size_t len = 0;
+ const unsigned char *in;
+ unsigned char *copy, *out;
+
+ for (in = (unsigned char *)filename; *in != 0; in++)
+ len += urlencode_is_specialchar(*in) ? 3 : 1;
+
+ copy = xcalloc(1, len + 1);
+
+ for (in = (unsigned char *)filename, out = copy; *in != 0; in++) {
+ if (urlencode_is_specialchar(*in)) {
+ *out++ = '%';
+ *out++ = bin2hex[*in / 16];
+ *out++ = bin2hex[*in % 16];
+ }
+ else {
+ *out++ = *in;
+ }
+ }
+
+ return (char *)copy;
+}
+
+char *urldecode_path(const char *filename)
+{
+ unsigned char *copy = (unsigned char *)xstrdup(filename);
+ unsigned char *in, *out;
+
+ for (in = copy, out = copy; *in != 0; in++) {
+ if (*in == '%' && isxdigit(in[1]) && isxdigit(in[2])) {
+ *out++ = hex2bin(in[1]) * 16 + hex2bin(in[2]);
+ in += 2;
+ }
+ else {
+ *out++ = *in;
+ }
+ }
+
+ *out = 0;
+
+ return (char *)copy;
+}
projects / project / opkg-lede.git / blobdiff