Add comment on use of abort() in libc
Suggested by: jonathan (in review D8133)
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Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=307148
@ -144,8 +144,15 @@ arc4_stir(void)
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arc4_init();
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rs_initialized = 1;
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}
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if (arc4_sysctl(rdat, KEYSIZE) != KEYSIZE)
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abort(); /* Random sysctl cannot fail. */
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if (arc4_sysctl(rdat, KEYSIZE) != KEYSIZE) {
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/*
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* The sysctl cannot fail. If it does fail on some FreeBSD
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* derivative or after some future change, just abort so that
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* the problem will be found and fixed. abort is not normally
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* suitable for a library but makes sense here.
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*/
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abort();
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}
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arc4_addrandom(rdat, KEYSIZE);
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@ -279,8 +279,15 @@ srandomdev(void)
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mib[0] = CTL_KERN;
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mib[1] = KERN_ARND;
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if (sysctl(mib, 2, state, &len, NULL, 0) == -1 || len != expected)
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if (sysctl(mib, 2, state, &len, NULL, 0) == -1 || len != expected) {
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/*
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* The sysctl cannot fail. If it does fail on some FreeBSD
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* derivative or after some future change, just abort so that
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* the problem will be found and fixed. abort is not normally
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* suitable for a library but makes sense here.
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*/
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abort();
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}
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if (rand_type != TYPE_0) {
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fptr = &state[rand_sep];
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