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libbacktrace: correct memory lengths in Mach-O dsym support

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* macho.c (macho_add_dsym): Make space for '/' in dsym.  Use
	correct length when freeing diralc.

Close #40
This commit is contained in:
Ian Lance Taylor
2020-09-08 14:50:32 -07:00
parent b3b57f9ee0
commit 030bd0a709
1 changed files with 2 additions and 1 deletions
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3
macho.c
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@@ -903,6 +903,7 @@ macho_add_dsym (struct backtrace_state *state, const char *filename,
dsymsuffixdirlen = strlen (dsymsuffixdir);
dsymlen = (dirnamelen
+ 1
+ basenamelen
+ dsymsuffixdirlen
+ basenamelen
@@ -925,7 +926,7 @@ macho_add_dsym (struct backtrace_state *state, const char *filename,
if (diralc != NULL)
{
backtrace_free (state, diralc, dirnamelen, error_callback, data);
backtrace_free (state, diralc, dirnamelen + 1, error_callback, data);
diralc = NULL;
}