1*c9945492SAndroid Build Coastguard Worker #include "stdio_impl.h"
2*c9945492SAndroid Build Coastguard Worker #include <string.h>
3*c9945492SAndroid Build Coastguard Worker
string_read(FILE * f,unsigned char * buf,size_t len)4*c9945492SAndroid Build Coastguard Worker static size_t string_read(FILE *f, unsigned char *buf, size_t len)
5*c9945492SAndroid Build Coastguard Worker {
6*c9945492SAndroid Build Coastguard Worker char *src = f->cookie;
7*c9945492SAndroid Build Coastguard Worker size_t k = len+256;
8*c9945492SAndroid Build Coastguard Worker char *end = memchr(src, 0, k);
9*c9945492SAndroid Build Coastguard Worker if (end) k = end-src;
10*c9945492SAndroid Build Coastguard Worker if (k < len) len = k;
11*c9945492SAndroid Build Coastguard Worker memcpy(buf, src, len);
12*c9945492SAndroid Build Coastguard Worker f->rpos = (void *)(src+len);
13*c9945492SAndroid Build Coastguard Worker f->rend = (void *)(src+k);
14*c9945492SAndroid Build Coastguard Worker f->cookie = src+k;
15*c9945492SAndroid Build Coastguard Worker return len;
16*c9945492SAndroid Build Coastguard Worker }
17*c9945492SAndroid Build Coastguard Worker
vsscanf(const char * restrict s,const char * restrict fmt,va_list ap)18*c9945492SAndroid Build Coastguard Worker int vsscanf(const char *restrict s, const char *restrict fmt, va_list ap)
19*c9945492SAndroid Build Coastguard Worker {
20*c9945492SAndroid Build Coastguard Worker FILE f = {
21*c9945492SAndroid Build Coastguard Worker .buf = (void *)s, .cookie = (void *)s,
22*c9945492SAndroid Build Coastguard Worker .read = string_read, .lock = -1
23*c9945492SAndroid Build Coastguard Worker };
24*c9945492SAndroid Build Coastguard Worker return vfscanf(&f, fmt, ap);
25*c9945492SAndroid Build Coastguard Worker }
26*c9945492SAndroid Build Coastguard Worker
27*c9945492SAndroid Build Coastguard Worker weak_alias(vsscanf,__isoc99_vsscanf);
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