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newgidmap: better error logging on failure

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Much like the previous commit, similarly relies on `sub_gid_open`
preserving `errno`.
This commit is contained in:
Matthew Hughes 2025-05-02 11:44:27 +01:00 committed by Iker Pedrosa
parent f64f9fd1be
commit ea109a3e4b
1 changed files with 6 additions and 2 deletions
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8
src/newgidmap.c
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@ -190,8 +190,9 @@ int main(int argc, char **argv)
/* Get the effective uid and effective gid of the target process */
if (fstat(proc_dir_fd, &st) < 0) {
fprintf(stderr, _("%s: Could not stat directory for process\n"),
Prog);
fprintf(stderr,
_("%s: Could not stat directory for target process: %s\n"),
Prog, strerror (errno));
return EXIT_FAILURE;
}
@ -211,6 +212,9 @@ int main(int argc, char **argv)
}
if (!sub_gid_open(O_RDONLY)) {
fprintf (stderr,
_("%s: cannot open %s: %s\n"),
Prog, sub_gid_dbname (), strerror (errno));
return EXIT_FAILURE;
}