Bug 29461 - strptime() failed to parse negative %s number of seconds since the Epoch, happily produced by strftime()
Summary: strptime() failed to parse negative %s number of seconds since the Epoch, hap...
Status: UNCONFIRMED
Alias: None
Product: glibc
Classification: Unclassified
Component: time (show other bugs)
Version: unspecified
: P2 normal
Target Milestone: ---
Assignee: Not yet assigned to anyone
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-08-08 19:29 UTC by Yann Droneaud
Modified: 2022-08-08 19:58 UTC (History)
1 user (show)

See Also:
Host:
Target:
Build:
Last reconfirmed:

Attachments
strftime(), strptime() %s format test with negative timestamp (373 bytes, text/x-csrc)
2022-08-08 19:29 UTC, Yann Droneaud 		Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Yann Droneaud 2022-08-08 19:29:40 UTC 
Created attachment 14267 [details]
strftime(), strptime() %s format test with negative timestamp

strftime(,"%s",) can produce negative number of seconds since the Epoch for date before the 1970-01-01, but strptime() refuses to parse negative numbers, thus is unable to parse the string formatted by strftime().

For example, the attached test case reports the following:

    strftime() produced "-3600"
    strptime() failed to parse "-3600"