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argv-util: also update program_invocation_short_name

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Our logging uses program_invocation_short_name. Without this patch,
logs from forked client may become broken; spuriously truncated or
the short invocation name is not completely shown in the log.

(cherry picked from commit dd15e4cb57)
(cherry picked from commit ce4726468d)
This commit is contained in:
Yu Watanabe 2023-02-03 18:29:36 +09:00 committed by Luca Boccassi
parent 9a620ef11d
commit 7a862d9d1a
1 changed files with 4 additions and 0 deletions
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4
src/basic/process-util.c
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@ -368,6 +368,10 @@ int rename_process(const char name[]) {
strncpy(program_invocation_name, name, k); strncpy(program_invocation_name, name, k);
if (l > k) if (l > k)
truncated = true; truncated = true;
/* Also update the short name. */
char *p = strrchr(program_invocation_name, '/');
program_invocation_short_name = p ? p + 1 : program_invocation_name;
} }
/* Third step, completely replace the argv[] array the kernel maintains for us. This requires privileges, but /* Third step, completely replace the argv[] array the kernel maintains for us. This requires privileges, but