pkg-utils/main/cmd/unpack/mkdir_p.c

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#include "unpack.h"
int mkdir_p(const char *path)
{
size_t i, len;
char *buffer;
while (*path == '/')
++path;
if (*path == '\0')
return 0;
len = strlen(path) + 1;
buffer = alloca(len);
for (i = 0; i < len; ++i) {
if (path[i] == '/' || path[i] == '\0') {
buffer[i] = '\0';
if (mkdir(buffer, 0755) != 0) {
if (errno != EEXIST) {
fprintf(stderr, "mkdir %s: %s\n",
buffer, strerror(errno));
return -1;
}
}
}
buffer[i] = path[i];
}
return 0;
}