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sysctl: ignore errors from lines starting with -

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The systemd sysctl ignores errors from preload files that start
with a hyphen.  This change brings the procps sysctl into line with
their change.

References:
    procps-ng/procps#138
    https://github.com/systemd/systemd/pull/13191
    https://github.com/systemd/systemd/pull/13141
This commit is contained in:
Craig Small
2019-09-21 15:50:53 +10:00
parent 4c4d8b2464
commit 7af88da373
2 changed files with 19 additions and 7 deletions
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20
sysctl.c
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@@ -378,6 +378,7 @@ static int WriteSetting(const char *setting)
char *tmpname;
char *outname;
char *last_dot;
bool ignore_failure;
FILE *fp;
struct stat ts;
@@ -402,6 +403,10 @@ static int WriteSetting(const char *setting)
return -2;
}
ignore_failure = name[0] == '-';
if (ignore_failure)
name++;
/* used to open the file */
tmpname = xmalloc(equals - name + 1 + strlen(PROC_PATH));
strcpy(tmpname, PROC_PATH);
@@ -446,19 +451,22 @@ static int WriteSetting(const char *setting)
switch (errno) {
case ENOENT:
if (!IgnoreError) {
xwarnx(_("\"%s\" is an unknown key"), outname);
rc = -1;
xwarnx(_("\"%s\" is an unknown key%s"), outname, (ignore_failure?_(", ignoring"):""));
if (!ignore_failure)
rc = -1;
}
break;
case EPERM:
case EROFS:
case EACCES:
xwarnx(_("permission denied on key '%s'"), outname);
rc = -1;
xwarnx(_("permission denied on key \"%s\"%s"), outname, (ignore_failure?_(", ignoring"):""));
break;
default:
xwarn(_("setting key \"%s\""), outname);
rc = -1;
xwarn(_("setting key \"%s\"%s"), outname, (ignore_failure?_(", ignoring"):""));
break;
}
if (!ignore_failure && errno != ENOENT)
rc = -1;
} else {
rc = fprintf(fp, "%s\n", value);
if (0 < rc)