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Added a stub for sscanf(3).

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This stub implements an ugly hack to help port binutils.

Hopefully we'll get a real scanf family of functions soon.
This commit is contained in:
Jonas 'Sortie' Termansen 2012-03-05 16:01:43 +01:00
parent f089a030b4
commit c03738a9f3
2 changed files with 18 additions and 1 deletions
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2
libmaxsi/include/stdio.h
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@ -102,6 +102,7 @@ extern int snprintf(char* restrict s, size_t n, const char* restrict format, ...
extern char* sortix_gets(void);
extern int sortix_puts(const char* str);
extern int sprintf(char* restrict s, const char* restrict format, ...);
extern int sscanf(const char* restrict s, const char* restrict format, ...);
extern int vfprintf(FILE* restrict stream, const char* restrict format, va_list ap);
extern int vprintf(const char* restrict format, va_list ap);
extern int vsnprintf(char* restrict, size_t, const char* restrict, va_list);
@ -131,7 +132,6 @@ extern int rename(const char* oldname, const char* newname);
extern int renameat(int oldfd, const char* oldname, int newfd, const char* newname);
extern int scanf(const char* restrict format, ...);
extern int setvbuf(FILE* restrict stream, char* restrict buf, int type, size_t size);
extern int sscanf(const char* restrict s, const char* restrict format, ...);
extern int ungetc(int c, FILE* stream);
extern int vdprintf(int fildes, const char* restrict format, va_list ap);
extern int vfscanf(FILE* restrict stream, const char* restrict format, va_list arg);

17
libmaxsi/io.cpp
View file

@ -119,6 +119,23 @@ namespace Maxsi
return (int) result;
}
// TODO: This is an ugly hack to help build binutils.
#warning Ugly sscanf hack to help build binutils
extern int sscanf(const char* s, const char* format, ...)
{
if ( strcmp(format, "%x") != 0 )
{
fprintf(stderr, "sscanf hack doesn't implement: '%s'\n", format);
abort();
}
va_list list;
va_start(list, format);
unsigned* dec = va_arg(list, unsigned*);
*dec = strtol(s, NULL, 16);
return strlen(s);
}
typedef struct vsnprintf_struct
{
char* str;