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make conf_pasta_ns() exit immediately after logging error

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As with conf_ports, this allows us to make the function return void.

Signed-off-by: Laine Stump <laine@redhat.com>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
Laine Stump 2023-02-15 03:24:33 -05:00 committed by Stefano Brivio
parent b20fe11b36
commit fe2a54e86e
1 changed files with 11 additions and 24 deletions
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35
conf.c
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@ -497,21 +497,15 @@ static int conf_netns_opt(char *netns, const char *arg)
* @optind: Index of first non-option argument
* @argc: Number of arguments
* @argv: Command line arguments
*
* Return: 0 on success, negative error code otherwise
*/
static int conf_pasta_ns(int *netns_only, char *userns, char *netns,
int optind, int argc, char *argv[])
static void conf_pasta_ns(int *netns_only, char *userns, char *netns,
int optind, int argc, char *argv[])
{
if (*netns_only && *userns) {
err("Both --userns and --netns-only given");
return -EINVAL;
}
if (*netns_only && *userns)
die("Both --userns and --netns-only given");
if (*netns && optind != argc) {
err("Both --netns and PID or command given");
return -EINVAL;
}
if (*netns && optind != argc)
die("Both --netns and PID or command given");
if (optind + 1 == argc) {
char *endptr;
@ -520,10 +514,8 @@ static int conf_pasta_ns(int *netns_only, char *userns, char *netns,
pidval = strtol(argv[optind], &endptr, 10);
if (!*endptr) {
/* Looks like a pid */
if (pidval < 0 || pidval > INT_MAX) {
err("Invalid PID %s", argv[optind]);
return -EINVAL;
}
if (pidval < 0 || pidval > INT_MAX)
die("Invalid PID %s", argv[optind]);
snprintf(netns, PATH_MAX, "/proc/%ld/ns/net", pidval);
if (!*userns)
@ -535,8 +527,6 @@ static int conf_pasta_ns(int *netns_only, char *userns, char *netns,
/* Attaching to a netns/PID, with no userns given */
if (*netns && !*userns)
*netns_only = 1;
return 0;
}
/** conf_ip4_prefix() - Parse an IPv4 prefix length or netmask
@ -1560,13 +1550,10 @@ void conf(struct ctx *c, int argc, char **argv)
}
} while (name != -1);
if (c->mode == MODE_PASTA) {
if (conf_pasta_ns(&netns_only, userns, netns,
optind, argc, argv) < 0)
usage(argv[0]);
} else if (optind != argc) {
if (c->mode == MODE_PASTA)
conf_pasta_ns(&netns_only, userns, netns, optind, argc, argv);
else if (optind != argc)
usage(argv[0]);
}
isolate_user(uid, gid, !netns_only, userns, c->mode);