1
0
Fork 0
mirror of https://github.com/git/git.git synced 2024-10-31 06:17:56 +01:00
git/url.c
Stephen Boyd c2e86addb8 Fix sparse warnings
Fix warnings from 'make check'.

 - These files don't include 'builtin.h' causing sparse to complain that
   cmd_* isn't declared:

   builtin/clone.c:364, builtin/fetch-pack.c:797,
   builtin/fmt-merge-msg.c:34, builtin/hash-object.c:78,
   builtin/merge-index.c:69, builtin/merge-recursive.c:22
   builtin/merge-tree.c:341, builtin/mktag.c:156, builtin/notes.c:426
   builtin/notes.c:822, builtin/pack-redundant.c:596,
   builtin/pack-refs.c:10, builtin/patch-id.c:60, builtin/patch-id.c:149,
   builtin/remote.c:1512, builtin/remote-ext.c:240,
   builtin/remote-fd.c:53, builtin/reset.c:236, builtin/send-pack.c:384,
   builtin/unpack-file.c:25, builtin/var.c:75

 - These files have symbols which should be marked static since they're
   only file scope:

   submodule.c:12, diff.c:631, replace_object.c:92, submodule.c:13,
   submodule.c:14, trace.c:78, transport.c:195, transport-helper.c:79,
   unpack-trees.c:19, url.c:3, url.c:18, url.c:104, url.c:117, url.c:123,
   url.c:129, url.c:136, thread-utils.c:21, thread-utils.c:48

 - These files redeclare symbols to be different types:

   builtin/index-pack.c:210, parse-options.c:564, parse-options.c:571,
   usage.c:49, usage.c:58, usage.c:63, usage.c:72

 - These files use a literal integer 0 when they really should use a NULL
   pointer:

   daemon.c:663, fast-import.c:2942, imap-send.c:1072, notes-merge.c:362

While we're in the area, clean up some unused #includes in builtin files
(mostly exec_cmd.h).

Signed-off-by: Stephen Boyd <bebarino@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-22 10:16:54 -07:00

142 lines
3 KiB
C

#include "cache.h"
#include "url.h"
int is_urlschemechar(int first_flag, int ch)
{
/*
* The set of valid URL schemes, as per STD66 (RFC3986) is
* '[A-Za-z][A-Za-z0-9+.-]*'. But use sightly looser check
* of '[A-Za-z0-9][A-Za-z0-9+.-]*' because earlier version
* of check used '[A-Za-z0-9]+' so not to break any remote
* helpers.
*/
int alphanumeric, special;
alphanumeric = ch > 0 && isalnum(ch);
special = ch == '+' || ch == '-' || ch == '.';
return alphanumeric || (!first_flag && special);
}
int is_url(const char *url)
{
const char *url2, *first_slash;
if (!url)
return 0;
url2 = url;
first_slash = strchr(url, '/');
/* Input with no slash at all or slash first can't be URL. */
if (!first_slash || first_slash == url)
return 0;
/* Character before must be : and next must be /. */
if (first_slash[-1] != ':' || first_slash[1] != '/')
return 0;
/* There must be something before the :// */
if (first_slash == url + 1)
return 0;
/*
* Check all characters up to first slash - 1. Only alphanum
* is allowed.
*/
url2 = url;
while (url2 < first_slash - 1) {
if (!is_urlschemechar(url2 == url, (unsigned char)*url2))
return 0;
url2++;
}
/* Valid enough. */
return 1;
}
static int url_decode_char(const char *q)
{
int i;
unsigned char val = 0;
for (i = 0; i < 2; i++) {
unsigned char c = *q++;
val <<= 4;
if (c >= '0' && c <= '9')
val += c - '0';
else if (c >= 'a' && c <= 'f')
val += c - 'a' + 10;
else if (c >= 'A' && c <= 'F')
val += c - 'A' + 10;
else
return -1;
}
return val;
}
static char *url_decode_internal(const char **query, const char *stop_at,
struct strbuf *out, int decode_plus)
{
const char *q = *query;
do {
unsigned char c = *q;
if (!c)
break;
if (stop_at && strchr(stop_at, c)) {
q++;
break;
}
if (c == '%') {
int val = url_decode_char(q + 1);
if (0 <= val) {
strbuf_addch(out, val);
q += 3;
continue;
}
}
if (decode_plus && c == '+')
strbuf_addch(out, ' ');
else
strbuf_addch(out, c);
q++;
} while (1);
*query = q;
return strbuf_detach(out, NULL);
}
char *url_decode(const char *url)
{
struct strbuf out = STRBUF_INIT;
const char *colon = strchr(url, ':');
/* Skip protocol part if present */
if (colon && url < colon) {
strbuf_add(&out, url, colon - url);
url = colon;
}
return url_decode_internal(&url, NULL, &out, 0);
}
char *url_decode_parameter_name(const char **query)
{
struct strbuf out = STRBUF_INIT;
return url_decode_internal(query, "&=", &out, 1);
}
char *url_decode_parameter_value(const char **query)
{
struct strbuf out = STRBUF_INIT;
return url_decode_internal(query, "&", &out, 1);
}
void end_url_with_slash(struct strbuf *buf, const char *url)
{
strbuf_addstr(buf, url);
if (buf->len && buf->buf[buf->len - 1] != '/')
strbuf_addstr(buf, "/");
}
void str_end_url_with_slash(const char *url, char **dest) {
struct strbuf buf = STRBUF_INIT;
end_url_with_slash(&buf, url);
free(*dest);
*dest = strbuf_detach(&buf, NULL);
}