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/*
* Make a path of subdirectories, tolerating EEXIST at every step.
*/
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "putty.h"
char *make_dir_path(const char *path, mode_t mode)
{
int pos = 0;
char *prefix;
while (1) {
pos += strcspn(path + pos, "/");
if (pos > 0) {
prefix = dupprintf("%.*s", pos, path);
if (mkdir(prefix, mode) < 0 && errno != EEXIST) {
char *ret = dupprintf("%s: mkdir: %s",
prefix, strerror(errno));
sfree(prefix);
return ret;
}
sfree(prefix);
}
if (!path[pos])
return NULL;
pos += strspn(path + pos, "/");
}
}
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