X-Git-Url: https://pd.if.org/git/?p=pdclib;a=blobdiff_plain;f=platform%2Fexample%2Ffunctions%2Fstdio%2Ftmpfile.c;h=44b975d36b13a96f2bf8d63717cd680ec230201f;hp=4c55e5d3542a4c4db4f16f14fcd7d8425b6050ec;hb=b406087285dda97f2666a7f52f66b14582ed937b;hpb=4de9ebf92ea3d057a9ce17841ff7939b1dfebc67 diff --git a/platform/example/functions/stdio/tmpfile.c b/platform/example/functions/stdio/tmpfile.c index 4c55e5d..44b975d 100644 --- a/platform/example/functions/stdio/tmpfile.c +++ b/platform/example/functions/stdio/tmpfile.c @@ -24,7 +24,7 @@ extern struct _PDCLIB_file_t * _PDCLIB_filelist; /* This is an example implementation of tmpfile() fit for use with POSIX - POSIX kernels. + kernels. */ struct _PDCLIB_file_t * tmpfile( void ) { @@ -32,7 +32,7 @@ struct _PDCLIB_file_t * tmpfile( void ) /* This is the chosen way to get high-quality randomness. Replace as appropriate. */ - FILE * randomsource = fopen( "/dev/urandom", "rb" ); + FILE * randomsource = fopen( "/proc/sys/kernel/random/uuid", "rb" ); char filename[ L_tmpnam ]; _PDCLIB_fd_t fd; if ( randomsource == NULL ) @@ -48,9 +48,9 @@ struct _PDCLIB_file_t * tmpfile( void ) use high-quality randomness instead of a pseudo-random sequence to generate the filename candidate, which is *also* platform-dependent. */ - uint32_t random; - fscanf( randomsource, "%" SCNu32, &random ); - sprintf( filename, "/tmp/%010" PRNu32 ".tmp", random ); + unsigned int random; + fscanf( randomsource, "%u", &random ); + sprintf( filename, "/tmp/%u.tmp", random ); /* Check if file of this name exists. Note that fopen() is a very weak check, which does not take e.g. access permissions into account (file might exist but not readable). Replace with something more @@ -71,7 +71,7 @@ struct _PDCLIB_file_t * tmpfile( void ) close( fd ); return NULL; } - rc->status = _PDCLIB_filemode( "wb+" ) | _PDCLIB_LIBBUFFER | _IOLBF | _PDCLIB_DELONCLOSE; + rc->status = _PDCLIB_filemode( "wb+" ) | _IOLBF | _PDCLIB_DELONCLOSE; rc->handle = fd; rc->ungetbuf = (unsigned char *)rc + sizeof( struct _PDCLIB_file_t ); rc->filename = (char *)rc->ungetbuf + _PDCLIB_UNGETCBUFSIZE;