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patch 8.0.0183: ubsan warns for unaligned address

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Problem:    Ubsan warns for using a pointer that is not aligned.
Solution:   First copy the address. (Yegappan Lakshmanan)
This commit is contained in:
Bram Moolenaar
2017-01-14 17:04:38 +01:00
parent e47683a091
commit 7173b47958
2 changed files with 10 additions and 1 deletions
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9
src/channel.c
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@@ -710,7 +710,14 @@ channel_open(
channel_free(channel); channel_free(channel);
return NULL; return NULL;
} }
memcpy((char *)&server.sin_addr, host->h_addr, host->h_length); {
char *p;
/* When using host->h_addr directly ubsan warns for it to not be
* aligned. First copy the pointer to aviod that. */
memcpy(&p, &host->h_addr, sizeof(p));
memcpy((char *)&server.sin_addr, p, host->h_length);
}
/* On Mac and Solaris a zero timeout almost never works. At least wait /* On Mac and Solaris a zero timeout almost never works. At least wait
* one millisecond. Let's do it for all systems, because we don't know why * one millisecond. Let's do it for all systems, because we don't know why

2
src/version.c
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@@ -764,6 +764,8 @@ static char *(features[]) =
static int included_patches[] = static int included_patches[] =
{ /* Add new patch number below this line */ { /* Add new patch number below this line */
/**/
183,
/**/ /**/
182, 182,
/**/ /**/