Use utf8::reencode_string from git

This replaces the iconv-support in cgit with similar functions already
existing in git.

Signed-off-by: Lars Hjemli <hjemli@gmai.com>

1 files changed, 4 insertions, 60 deletions

diff --git a/parsing.c b/parsing.c
index c731084..e8c7ab9 100644
--- a/parsing.c
+++ b/parsing.c
@@ -1,42 +1,40 @@
 /* config.c: parsing of config files
  *
  * Copyright (C) 2006 Lars Hjemli
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  */
 
-#include <iconv.h>
-
 #include "cgit.h"
 
 int next_char(FILE *f)
 {
         int c = fgetc(f);
         if (c=='\r') {
                 c = fgetc(f);
                 if (c!='\n') {
                         ungetc(c, f);
                         c = '\r';
                 }
         }
         return c;
 }
 
 void skip_line(FILE *f)
 {
         int c;
 
         while((c=next_char(f)) && c!='\n' && c!=EOF)
                 ;
 }
 
 int read_config_line(FILE *f, char *line, const char **value, int bufsize)
 {
         int i = 0, isname = 0;
 
         *value = NULL;
         while(i<bufsize-1) {
                 int c = next_char(f);
                 if (!isname && (c=='#' || c==';')) {
                         skip_line(f);
@@ -149,120 +147,64 @@ void cgit_parse_url(const char *url)
         if (!url || url[0] == '\0')
                 return;
 
         cgit_repo = cgit_get_repoinfo(url);
         if (cgit_repo) {
                 cgit_query_repo = cgit_repo->url;
                 return;
         }
 
         cmd = strchr(url, '/');
         while (!cgit_repo && cmd) {
                 cmd[0] = '\0';
                 cgit_repo = cgit_get_repoinfo(url);
                 if (cgit_repo == NULL) {
                         cmd[0] = '/';
                         cmd = strchr(cmd + 1, '/');
                         continue;
                 }
 
                 cgit_query_repo = cgit_repo->url;
                 p = strchr(cmd + 1, '/');
                 if (p) {
                         p[0] = '\0';
                         if (p[1])
                                 cgit_query_path = trim_end(p + 1, '/');
                 }
                 cgit_cmd = cgit_get_cmd_index(cmd + 1);
                 cgit_query_page = xstrdup(cmd + 1);
                 return;
         }
 }
 
-static char *iconv_msg(char *msg, const char *encoding)
-{
-        iconv_t msg_conv = iconv_open(PAGE_ENCODING, encoding);
-        size_t inlen = strlen(msg);
-        char *in;
-        char *out;
-        size_t inleft;
-        size_t outleft;
-        char *buf;
-        char *ret;
-        size_t buf_sz;
-        int again, fail;
-
-        if(msg_conv == (iconv_t)-1)
-                return NULL;
-
-        buf_sz = inlen * 2;
-        buf = xmalloc(buf_sz+1);
-        do {
-                in = msg;
-                inleft = inlen;
-
-                out = buf;
-                outleft = buf_sz;
-                iconv(msg_conv, &in, &inleft, &out, &outleft);
-
-                if(inleft == 0) {
-                        fail = 0;
-                        again = 0;
-                } else if(inleft != 0 && errno == E2BIG) {
-                        fail = 0;
-                        again = 1;
-
-                        buf_sz *= 2;
-                        free(buf);
-                        buf = xmalloc(buf_sz+1);
-                } else {
-                        fail = 1;
-                        again = 0;
-                }
-        } while(again && !fail);
-
-        if(fail) {
-                free(buf);
-                ret = NULL;
-        } else {
-                buf = xrealloc(buf, out - buf);
-                *out = 0;
-                ret = buf;
-        }
-
-        iconv_close(msg_conv);
-
-        return ret;
-}
-
 char *substr(const char *head, const char *tail)
 {
         char *buf;
 
         buf = xmalloc(tail - head + 1);
         strncpy(buf, head, tail - head);
         buf[tail - head] = '\0';
         return buf;
 }
 
 struct commitinfo *cgit_parse_commit(struct commit *commit)
 {
         struct commitinfo *ret;
         char *p = commit->buffer, *t = commit->buffer;
 
         ret = xmalloc(sizeof(*ret));
         ret->commit = commit;
         ret->author = NULL;
         ret->author_email = NULL;
         ret->committer = NULL;
         ret->committer_email = NULL;
         ret->subject = NULL;
         ret->msg = NULL;
         ret->msg_encoding = NULL;
 
         if (p == NULL)
                 return ret;
 
         if (strncmp(p, "tree ", 5))
                 die("Bad commit: %s", sha1_to_hex(commit->object.sha1));
         else
                 p += 46; // "tree " + hex[40] + "\n"
@@ -292,71 +234,73 @@ struct commitinfo *cgit_parse_commit(struct commit *commit)
                 p = strchr(t, '\n') + 1;
         }
 
         if (!strncmp(p, "encoding ", 9)) {
                 p += 9;
                 t = strchr(p, '\n') + 1;
                 ret->msg_encoding = substr(p, t);
                 p = t;
         } else
                 ret->msg_encoding = xstrdup(PAGE_ENCODING);
 
         while (*p && (*p != '\n'))
                 p = strchr(p, '\n') + 1; // skip unknown header fields
 
         while (*p == '\n')
                 p = strchr(p, '\n') + 1;
 
         t = strchr(p, '\n');
         if (t) {
                 if (*t == '\0')
                         ret->subject = "** empty **";
                 else
                         ret->subject = substr(p, t);
                 p = t + 1;
 
                 while (*p == '\n')
                         p = strchr(p, '\n') + 1;
                 ret->msg = xstrdup(p);
         } else
                 ret->subject = substr(p, p+strlen(p));
 
         if(strcmp(ret->msg_encoding, PAGE_ENCODING)) {
-                t = iconv_msg(ret->subject, ret->msg_encoding);
+                t = reencode_string(ret->subject, PAGE_ENCODING,
+                                    ret->msg_encoding);
                 if(t) {
                         free(ret->subject);
                         ret->subject = t;
                 }
 
-                t = iconv_msg(ret->msg, ret->msg_encoding);
+                t = reencode_string(ret->msg, PAGE_ENCODING,
+                                    ret->msg_encoding);
                 if(t) {
                         free(ret->msg);
                         ret->msg = t;
                 }
         }
 
         return ret;
 }
 
 
 struct taginfo *cgit_parse_tag(struct tag *tag)
 {
         void *data;
         enum object_type type;
         unsigned long size;
         char *p, *t;
         struct taginfo *ret;
 
         data = read_sha1_file(tag->object.sha1, &type, &size);
         if (!data || type != OBJ_TAG) {
                 free(data);
                 return 0;
         }
 
         ret = xmalloc(sizeof(*ret));
         ret->tagger = NULL;
         ret->tagger_email = NULL;
         ret->tagger_date = 0;
         ret->msg = NULL;
 
         p = data;