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mmap should set PROT_READ|PROT_WRITE, not just PROT_WRITE. Takes care of a

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problem with FreeBSD. Also, check for MAP_FAILED instead of
(unsigned char *)-1
This commit is contained in:
Jeff Teunissen 2000-09-21 06:28:15 +00:00
parent 29635fb5d5
commit 0e3df0b239
1 changed files with 2 additions and 2 deletions
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4
source/snd_oss.c
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@ -146,8 +146,8 @@ qboolean SNDDMA_Init(void)
// memory map the dma buffer
shm->buffer = (unsigned char *) mmap(NULL, info.fragstotal
* info.fragsize, PROT_WRITE, MAP_FILE|MAP_SHARED, audio_fd, 0);
if (!shm->buffer || shm->buffer == (unsigned char *)-1)
* info.fragsize, PROT_READ|PROT_WRITE, MAP_FILE|MAP_SHARED, audio_fd, 0);
if (!shm->buffer || shm->buffer == MAP_FAILED)
{
perror("/dev/dsp");
Con_Printf("Could not mmap /dev/dsp\n");