diff options
Diffstat (limited to 'libc/misc/internals/tempname.c')
| -rw-r--r-- | libc/misc/internals/tempname.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/libc/misc/internals/tempname.c b/libc/misc/internals/tempname.c index ca87b0c06..f9b714a68 100644 --- a/libc/misc/internals/tempname.c +++ b/libc/misc/internals/tempname.c @@ -152,12 +152,12 @@ static void brain_damaged_fillrand(unsigned char *buf, unsigned int len) for (i = 0; i < len; ++i) { rh = high % NUM_LETTERS; high /= NUM_LETTERS; -#define L ((UINT32_MAX % NUM_LETTERS + 1) % NUM_LETTERS) - k = (low % NUM_LETTERS) + (L * rh); -#undef L -#define H ((UINT32_MAX / NUM_LETTERS) + ((UINT32_MAX % NUM_LETTERS + 1) / NUM_LETTERS)) - low = (low / NUM_LETTERS) + (H * rh) + (k / NUM_LETTERS); -#undef H +#define _L ((UINT32_MAX % NUM_LETTERS + 1) % NUM_LETTERS) + k = (low % NUM_LETTERS) + (_L * rh); +#undef _L +#define _H ((UINT32_MAX / NUM_LETTERS) + ((UINT32_MAX % NUM_LETTERS + 1) / NUM_LETTERS)) + low = (low / NUM_LETTERS) + (_H * rh) + (k / NUM_LETTERS); +#undef _H k %= NUM_LETTERS; buf[i] = letters[k]; } @@ -218,7 +218,8 @@ int attribute_hidden __gen_tempname (char *tmpl, int kind, int flags, /* Give up now. */ return -1; } else - fd = 0; + /* File already exists, so return with non-zero value */ + return -1; } case __GT_FILE: fd = open (tmpl, O_RDWR | O_CREAT | O_EXCL | flags, mode); |