Add iconv_msg function.

1 files changed, 58 insertions, 0 deletions

diff --git a/parsing.c b/parsing.c
index 16b4db7..f156c12 100644
--- a/parsing.c
+++ b/parsing.c
@@ -1,40 +1,42 @@
 /* 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);
@@ -147,64 +149,120 @@ 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"