projects / packages / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| dfe1611b PS |
1 | --- a/resolv/res_query.c |
| 2 | +++ b/resolv/res_query.c | |
| 3 | @@ -122,6 +122,7 @@ __libc_res_nquery(res_state statp, | |
| 4 | int *resplen2) | |
| 5 | { | |
| 6 | HEADER *hp = (HEADER *) answer; | |
| 7 | + HEADER *hp2; | |
| 8 | int n, use_malloc = 0; | |
| 9 | u_int oflags = statp->_flags; | |
| 10 | ||
| 11 | @@ -239,26 +240,25 @@ __libc_res_nquery(res_state statp, | |
| 12 | /* __libc_res_nsend might have reallocated the buffer. */ | |
| 13 | hp = (HEADER *) *answerp; | |
| 14 | ||
| 15 | - /* We simplify the following tests by assigning HP to HP2. It | |
| 16 | - is easy to verify that this is the same as ignoring all | |
| 17 | - tests of HP2. */ | |
| 18 | - HEADER *hp2 = answerp2 ? (HEADER *) *answerp2 : hp; | |
| 19 | - | |
| 20 | - if (n < (int) sizeof (HEADER) && answerp2 != NULL | |
| 21 | - && *resplen2 > (int) sizeof (HEADER)) | |
| 22 | + /* We simplify the following tests by assigning HP to HP2 or | |
| 23 | + vice versa. It is easy to verify that this is the same as | |
| 24 | + ignoring all tests of HP or HP2. */ | |
| 25 | + if (answerp2 == NULL || *resplen2 < (int) sizeof (HEADER)) | |
| 26 | { | |
| 27 | - /* Special case of partial answer. */ | |
| 28 | - assert (hp != hp2); | |
| 29 | - hp = hp2; | |
| 30 | + hp2 = hp; | |
| 31 | } | |
| 32 | - else if (answerp2 != NULL && *resplen2 < (int) sizeof (HEADER) | |
| 33 | - && n > (int) sizeof (HEADER)) | |
| 34 | + else | |
| 35 | { | |
| 36 | - /* Special case of partial answer. */ | |
| 37 | - assert (hp != hp2); | |
| 38 | - hp2 = hp; | |
| 39 | + hp2 = (HEADER *) *answerp2; | |
| 40 | + if (n < (int) sizeof (HEADER)) | |
| 41 | + { | |
| 42 | + hp = hp2; | |
| 43 | + } | |
| 44 | } | |
| 45 | ||
| 46 | + /* Make sure both hp and hp2 are defined */ | |
| 47 | + assert((hp != NULL) && (hp2 != NULL)); | |
| 48 | + | |
| 49 | if ((hp->rcode != NOERROR || ntohs(hp->ancount) == 0) | |
| 50 | && (hp2->rcode != NOERROR || ntohs(hp2->ancount) == 0)) { | |
| 51 | #ifdef DEBUG |