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43 lines
1.0 KiB
C
43 lines
1.0 KiB
C
--- src/libbacktrace/fileline.c.orig 2017-06-06 00:42:59 UTC
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+++ src/libbacktrace/fileline.c
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@@ -38,8 +38,39 @@ POSSIBILITY OF SUCH DAMAGE. */
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#include <fcntl.h>
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#include <stdlib.h>
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+#if defined(__DragonFly__) || defined(__FreeBSD__) || defined(__NetBSD__)
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+#include <sys/sysctl.h>
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+#include <limits.h>
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+#endif
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+
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#include "backtrace.h"
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#include "internal.h"
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+
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+#if !defined(HAVE_GETEXECNAME) && defined(KERN_PROC_PATHNAME)
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+/* Return pathname of executable or 0 on failure. */
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+#define HAVE_GETEXECNAME
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+static char execname[PATH_MAX + 1];
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+static const char *
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+getexecname(void)
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+{
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+ size_t path_len = sizeof(execname);
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+ int mib[] = {
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+ CTL_KERN,
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+#if defined(__NetBSD__)
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+ KERN_PROC_ARGS,
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+ -1,
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+ KERN_PROC_PATHNAME,
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+#else
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+ KERN_PROC,
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+ KERN_PROC_PATHNAME,
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+ -1,
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+#endif
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+ };
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+ u_int miblen = sizeof(mib) / sizeof(mib[0]);
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+ int rc = sysctl(mib, miblen, execname, &path_len, NULL, 0);
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+ return rc ? NULL : execname;
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+}
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+#endif /* !HAVE_GETEXECNAME && KERN_PROC_PATHNAME */
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#ifndef HAVE_GETEXECNAME
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#define getexecname() NULL
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