Adhemerval Zanella c6e0b0b5b0 stdlib: Sync canonicalize with gnulib [BZ #10635] [BZ #26592] [BZ #26341] [BZ #24970] ... It sync with gnulib version ae9fb3d66. The testcase for BZ#23741 (stdlib/test-bz22786.c) is adjusted to check also for ENOMEM. The patch fixes multiple realpath issues: - Portability fixes for errno clobbering on free (BZ#10635). The function does not call free directly anymore, although it might be done through scratch_buffer_free. The free errno clobbering is being tracked by BZ#17924. - Pointer arithmetic overflows in realpath (BZ#26592). - Realpath cyclically call __alloca(path_max) to consume too much stack space (BZ#26341). - Realpath mishandles EOVERFLOW; stat not needed anyway (BZ#24970). The check is done through faccessat now. Checked on x86_64-linux-gnu and i686-linux-gnu.		2021-01-05 11:33:16 -03:00
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linux	stdlib: Sync canonicalize with gnulib [BZ #10635] [BZ #26592] [BZ #26341] [BZ #24970]	2021-01-05 11:33:16 -03:00