xref: /aosp_15_r20/external/musl/src/temp/mkdtemp.c (revision c9945492fdd68bbe62686c5b452b4dc1be3f8453)
1*c9945492SAndroid Build Coastguard Worker #include <string.h>
2*c9945492SAndroid Build Coastguard Worker #include <stdlib.h>
3*c9945492SAndroid Build Coastguard Worker #include <errno.h>
4*c9945492SAndroid Build Coastguard Worker #include <sys/stat.h>
5*c9945492SAndroid Build Coastguard Worker 
mkdtemp(char * template)6*c9945492SAndroid Build Coastguard Worker char *mkdtemp(char *template)
7*c9945492SAndroid Build Coastguard Worker {
8*c9945492SAndroid Build Coastguard Worker 	size_t l = strlen(template);
9*c9945492SAndroid Build Coastguard Worker 	int retries = 100;
10*c9945492SAndroid Build Coastguard Worker 
11*c9945492SAndroid Build Coastguard Worker 	if (l<6 || memcmp(template+l-6, "XXXXXX", 6)) {
12*c9945492SAndroid Build Coastguard Worker 		errno = EINVAL;
13*c9945492SAndroid Build Coastguard Worker 		return 0;
14*c9945492SAndroid Build Coastguard Worker 	}
15*c9945492SAndroid Build Coastguard Worker 
16*c9945492SAndroid Build Coastguard Worker 	do {
17*c9945492SAndroid Build Coastguard Worker 		__randname(template+l-6);
18*c9945492SAndroid Build Coastguard Worker 		if (!mkdir(template, 0700)) return template;
19*c9945492SAndroid Build Coastguard Worker 	} while (--retries && errno == EEXIST);
20*c9945492SAndroid Build Coastguard Worker 
21*c9945492SAndroid Build Coastguard Worker 	memcpy(template+l-6, "XXXXXX", 6);
22*c9945492SAndroid Build Coastguard Worker 	return 0;
23*c9945492SAndroid Build Coastguard Worker }
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