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Add URI parser

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This commit is contained in:
mintsuki 2020-10-17 05:37:39 +02:00
parent 0c5ccf14b4
commit 7863c92cae
2 changed files with 41 additions and 0 deletions
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39
stage2/lib/config.c
View File

@ -1,4 +1,5 @@
#include <stddef.h>
#include <stdbool.h>
#include <lib/config.h>
#include <lib/libc.h>
#include <lib/blib.h>
@ -116,3 +117,41 @@ char *config_get_value(char *buf, size_t index, size_t limit, const char *key) {
return NULL;
}
// A URI takes the form of: resource://root/path
// The following function splits up a URI into its componenets
bool config_resolve_uri(char *uri, char **resource, char **root, char **path) {
*resource = *root = *path = NULL;
// Get resource
for (size_t i = 0; ; i++) {
if (strlen(uri + i) < 3)
return false;
if (!memcmp(uri + i, "://", 3)) {
*resource = uri;
uri[i] = 0;
uri += i + 3;
break;
}
}
for (size_t i = 0; ; i++) {
if (uri[i] == 0)
return false;
if (uri[i] == '/') {
*root = uri;
uri[i] = 0;
uri += i + 1;
break;
}
}
if (*uri == 0)
return false;
*path = uri;
return true;
}

2
stage2/lib/config.h
View File

@ -2,10 +2,12 @@
#define __LIB__CONFIG_H__
#include <stddef.h>
#include <stdbool.h>
int init_config(int drive, int part);
int config_get_entry_name(char *ret, size_t index, size_t limit);
int config_set_entry(size_t index);
char *config_get_value(char *buf, size_t index, size_t limit, const char *key);
bool config_resolve_uri(char *uri, char **resource, char **root, char **path);
#endif