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Further SOURCE_DATE_EPOCH simplification

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Rather than mucking about with errno, we can just take advantage of the
fact that on overflow, strtoull() is specified to return ULLONG_MAX,
which is guaranteed to be (much) bigger than the maximum
SOURCE_DATE_EPOCH that we can cope with.  So our usual range check can
cope with overflow as well.
This commit is contained in:
Ben Harris 2025-02-27 23:00:24 +00:00
parent 528c0542ed
commit 0d2296e4af
1 changed files with 0 additions and 3 deletions
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bedstead.c
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@ -98,7 +98,6 @@
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <stdbool.h>
#include <stdint.h>
@ -3149,11 +3148,9 @@ time_for_ttx(void)
/* Work out what timestamp to use. */
if ((epochstr = getenv("SOURCE_DATE_EPOCH")) != NULL) {
errno = 0;
epochull = strtoull(epochstr, &endptr, 10);
if (!isdigit((unsigned char)epochstr[0]) ||
endptr == epochstr || *endptr != '\0' ||
errno == ERANGE ||
/* Allow years up to 9999. */
epochull >= 253402300800) {
fprintf(stderr, "Invalid SOURCE_DATE_EPOCH\n");