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authorGravatar Nikias Bassen2013-11-12 18:17:00 +0100
committerGravatar Nikias Bassen2013-11-12 18:17:00 +0100
commit86ae825fb67734391fc7cc72d5c9b004570ab0a9 (patch)
treef95f0ab59def65e733c78359a782c83d9286175e /src/base64.c
parent4a7a0877fb91c5aefa82ac8ae63fdbb8f01ae7a4 (diff)
downloadlibplist-86ae825fb67734391fc7cc72d5c9b004570ab0a9.tar.gz
libplist-86ae825fb67734391fc7cc72d5c9b004570ab0a9.tar.bz2
base64: get rid of strtok_r and use strspn+strcspn instead
strtok_r is not available on win32 and the designated strtok_s function is reported to not work on windows xp. Hence we use an easier an non-destructive implementation with strspn and strcspn to strip out the whitespace.
Diffstat (limited to 'src/base64.c')
-rw-r--r--src/base64.c27
1 files changed, 14 insertions, 13 deletions
diff --git a/src/base64.c b/src/base64.c
index acec723..83205c2 100644
--- a/src/base64.c
+++ b/src/base64.c
@@ -21,10 +21,6 @@
#include <string.h>
#include "base64.h"
-#ifdef WIN32
-#define strtok_r strtok_s
-#endif
-
static const char base64_str[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
static const char base64_pad = '=';
@@ -112,18 +108,23 @@ unsigned char *base64decode(const char *buf, size_t *size)
size_t len = strlen(buf);
if (len <= 0) return NULL;
unsigned char *outbuf = (unsigned char*)malloc((len/4)*3+3);
-
- unsigned char *line;
+ const char *ptr = buf;
int p = 0;
- char* saveptr = NULL;
- line = (unsigned char*)strtok_r((char*)buf, "\r\n\t ", &saveptr);
- while (line) {
- p+=base64decode_block(outbuf+p, (const char*)line, strlen((char*)line));
+ do {
+ ptr += strspn(ptr, "\r\n\t ");
+ if (*ptr == '\0') {
+ break;
+ }
+ len = strcspn(ptr, "\r\n\t ");
+ if (len > 0) {
+ p+=base64decode_block(outbuf+p, ptr, len);
+ ptr += len;
+ } else {
+ break;
+ }
+ } while (1);
- // get next line of base64 encoded block
- line = (unsigned char*)strtok_r(NULL, "\r\n\t ", &saveptr);
- }
outbuf[p] = 0;
*size = p;
return outbuf;