136 lines
2.6 KiB
C
136 lines
2.6 KiB
C
|
#include <errno.h>
|
||
|
|
#include <sys/stat.h>
|
||
|
|
|
||
|
|
int
|
||
|
|
normalizepath(const char *path, char **normal)
|
||
|
|
{
|
||
|
|
size_t len = strlen(path);
|
||
|
|
*normal = (char *)malloc((len + 1) * sizeof(char));
|
||
|
|
const char *walk = path;
|
||
|
|
const char *match;
|
||
|
|
size_t newlen = 0;
|
||
|
|
|
||
|
|
while ((match = strchr(walk, '/'))) {
|
||
|
|
// Copy everything between match and walk
|
||
|
|
strncpy(*normal + newlen, walk, match - walk);
|
||
|
|
newlen += match - walk;
|
||
|
|
walk += match - walk;
|
||
|
|
|
||
|
|
// Skip all repeating slashes
|
||
|
|
while (*walk == '/')
|
||
|
|
walk++;
|
||
|
|
|
||
|
|
// If not last character in path
|
||
|
|
if (walk != path + len)
|
||
|
|
(*normal)[newlen++] = '/';
|
||
|
|
}
|
||
|
|
|
||
|
|
(*normal)[newlen++] = '\0';
|
||
|
|
|
||
|
|
// Copy remaining path
|
||
|
|
strcat(*normal, walk);
|
||
|
|
newlen += strlen(walk);
|
||
|
|
|
||
|
|
*normal = (char *)realloc(*normal, newlen * sizeof(char));
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
parentdir(const char *path, char **parent)
|
||
|
|
{
|
||
|
|
char *normal;
|
||
|
|
char *walk;
|
||
|
|
|
||
|
|
normalizepath(path, &normal);
|
||
|
|
|
||
|
|
// Pointer to last '/'
|
||
|
|
if (!(walk = strrchr(normal, '/'))) {
|
||
|
|
free(normal);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Get path up to last '/'
|
||
|
|
size_t len = walk - normal;
|
||
|
|
*parent = (char *)malloc((len + 1) * sizeof(char));
|
||
|
|
|
||
|
|
// Copy path up to last '/'
|
||
|
|
strncpy(*parent, normal, len);
|
||
|
|
// Add null char
|
||
|
|
(*parent)[len] = '\0';
|
||
|
|
|
||
|
|
free(normal);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
mkdirp(const char *path)
|
||
|
|
{
|
||
|
|
char *normal;
|
||
|
|
char *walk;
|
||
|
|
size_t normallen;
|
||
|
|
|
||
|
|
normalizepath(path, &normal);
|
||
|
|
normallen = strlen(normal);
|
||
|
|
walk = normal;
|
||
|
|
|
||
|
|
while (walk < normal + normallen + 1) {
|
||
|
|
// Get length from walk to next /
|
||
|
|
size_t n = strcspn(walk, "/");
|
||
|
|
|
||
|
|
// Skip path /
|
||
|
|
if (n == 0) {
|
||
|
|
walk++;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Length of current path segment
|
||
|
|
size_t curpathlen = walk - normal + n;
|
||
|
|
char curpath[curpathlen + 1];
|
||
|
|
struct stat s;
|
||
|
|
|
||
|
|
// Copy path segment to stat
|
||
|
|
strncpy(curpath, normal, curpathlen);
|
||
|
|
strcpy(curpath + curpathlen, "");
|
||
|
|
int res = stat(curpath, &s);
|
||
|
|
|
||
|
|
if (res < 0) {
|
||
|
|
if (errno == ENOENT) {
|
||
|
|
DEBUG("Making directory %s\n", curpath);
|
||
|
|
if (mkdir(curpath, 0700) < 0) {
|
||
|
|
fprintf(stderr, "Failed to make directory %s\n", curpath);
|
||
|
|
perror("");
|
||
|
|
free(normal);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
fprintf(stderr, "Error statting directory %s\n", curpath);
|
||
|
|
perror("");
|
||
|
|
free(normal);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Continue to next path segment
|
||
|
|
walk += n;
|
||
|
|
}
|
||
|
|
|
||
|
|
free(normal);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
nullterminate(char **str, size_t *len)
|
||
|
|
{
|
||
|
|
if ((*str)[*len - 1] == '\0')
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
(*len)++;
|
||
|
|
*str = (char*)realloc(*str, *len * sizeof(char));
|
||
|
|
(*str)[*len - 1] = '\0';
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|