rerere: Separate libgit and builtin functions

[thirdparty/git.git] / builtin-mailinfo.c

diff --git a/builtin-mailinfo.c b/builtin-mailinfo.c
index 2600847974f8a44bdd2148da6ff82ecf761fb193..fa6e8f90a4d54eb07f2af80620e35e617c94d605 100644 (file)
--- a/builtin-mailinfo.c
+++ b/builtin-mailinfo.c
@@ -434,6 +434,7 @@ static int read_one_header_line(char *line, int sz, FILE *in)
 
 static int decode_q_segment(char *in, char *ot, unsigned otsize, char *ep, int rfc2047)
 {
+       char *otbegin = ot;
        char *otend = ot + otsize;
        int c;
        while ((c = *in++) != 0 && (in <= ep)) {
@@ -453,13 +454,14 @@ static int decode_q_segment(char *in, char *ot, unsigned otsize, char *ep, int r
                *ot++ = c;
        }
        *ot = 0;
-       return 0;
+       return (ot - otbegin);
 }
 
 static int decode_b_segment(char *in, char *ot, unsigned otsize, char *ep)
 {
        /* Decode in..ep, possibly in-place to ot */
        int c, pos = 0, acc = 0;
+       char *otbegin = ot;
        char *otend = ot + otsize;
 
        while ((c = *in++) != 0 && (in <= ep)) {
@@ -505,7 +507,7 @@ static int decode_b_segment(char *in, char *ot, unsigned otsize, char *ep)
                }
        }
        *ot = 0;
-       return 0;
+       return (ot - otbegin);
 }
 
 /*
@@ -623,25 +625,24 @@ static void decode_header(char *it, unsigned itsize)
                convert_to_utf8(it, itsize, "");
 }
 
-static void decode_transfer_encoding(char *line, unsigned linesize)
+static int decode_transfer_encoding(char *line, unsigned linesize, int inputlen)
 {
        char *ep;
 
        switch (transfer_encoding) {
        case TE_QP:
-               ep = line + strlen(line);
-               decode_q_segment(line, line, linesize, ep, 0);
-               break;
+               ep = line + inputlen;
+               return decode_q_segment(line, line, linesize, ep, 0);
        case TE_BASE64:
-               ep = line + strlen(line);
-               decode_b_segment(line, line, linesize, ep);
-               break;
+               ep = line + inputlen;
+               return decode_b_segment(line, line, linesize, ep);
        case TE_DONTCARE:
-               break;
+       default:
+               return inputlen;
        }
 }
 
-static int handle_filter(char *line, unsigned linesize);
+static int handle_filter(char *line, unsigned linesize, int linelen);
 
 static int find_boundary(void)
 {
@@ -669,7 +670,7 @@ again:
                                        "can't recover\n");
                        exit(1);
                }
-               handle_filter(newline, sizeof(newline));
+               handle_filter(newline, sizeof(newline), strlen(newline));
 
                /* skip to the next boundary */
                if (!find_boundary())
@@ -759,14 +760,14 @@ static int handle_commit_msg(char *line, unsigned linesize)
        return 0;
 }
 
-static int handle_patch(char *line)
+static int handle_patch(char *line, int len)
 {
-       fputs(line, patchfile);
+       fwrite(line, 1, len, patchfile);
        patch_lines++;
        return 0;
 }
 
-static int handle_filter(char *line, unsigned linesize)
+static int handle_filter(char *line, unsigned linesize, int linelen)
 {
        static int filter = 0;
 
@@ -779,7 +780,7 @@ static int handle_filter(char *line, unsigned linesize)
                        break;
                filter++;
        case 1:
-               if (!handle_patch(line))
+               if (!handle_patch(line, linelen))
                        break;
                filter++;
        default:
@@ -794,6 +795,7 @@ static void handle_body(void)
        int rc = 0;
        static char newline[2000];
        static char *np = newline;
+       int len = strlen(line);
 
        /* Skip up to the first boundary */
        if (content_top->boundary) {
@@ -805,57 +807,63 @@ static void handle_body(void)
                /* process any boundary lines */
                if (content_top->boundary && is_multipart_boundary(line)) {
                        /* flush any leftover */
-                       if ((transfer_encoding == TE_BASE64)  &&
-                           (np != newline)) {
-                               handle_filter(newline, sizeof(newline));
-                       }
+                       if (np != newline)
+                               handle_filter(newline, sizeof(newline),
+                                             np - newline);
                        if (!handle_boundary())
                                return;
+                       len = strlen(line);
                }
 
                /* Unwrap transfer encoding */
-               decode_transfer_encoding(line, sizeof(line));
+               len = decode_transfer_encoding(line, sizeof(line), len);
+               if (len < 0) {
+                       error("Malformed input line");
+                       return;
+               }
 
                switch (transfer_encoding) {
                case TE_BASE64:
+               case TE_QP:
                {
                        char *op = line;
 
                        /* binary data most likely doesn't have newlines */
                        if (message_type != TYPE_TEXT) {
-                               rc = handle_filter(line, sizeof(newline));
+                               rc = handle_filter(line, sizeof(line), len);
                                break;
                        }
 
-                       /* this is a decoded line that may contain
+                       /*
+                        * This is a decoded line that may contain
                         * multiple new lines.  Pass only one chunk
                         * at a time to handle_filter()
                         */
-
                        do {
-                               while (*op != '\n' && *op != 0)
+                               while (op < line + len && *op != '\n')
                                        *np++ = *op++;
                                *np = *op;
                                if (*np != 0) {
                                        /* should be sitting on a new line */
                                        *(++np) = 0;
                                        op++;
-                                       rc = handle_filter(newline, sizeof(newline));
+                                       rc = handle_filter(newline, sizeof(newline), np - newline);
                                        np = newline;
                                }
-                       } while (*op != 0);
-                       /* the partial chunk is saved in newline and
-                        * will be appended by the next iteration of fgets
+                       } while (op < line + len);
+                       /*
+                        * The partial chunk is saved in newline and will be
+                        * appended by the next iteration of read_line_with_nul().
                         */
                        break;
                }
                default:
-                       rc = handle_filter(line, sizeof(newline));
+                       rc = handle_filter(line, sizeof(line), len);
                }
                if (rc)
                        /* nothing left to filter */
                        break;
-       } while (fgets(line, sizeof(line), fin));
+       } while ((len = read_line_with_nul(line, sizeof(line), fin)));
 
        return;
 }
@@ -961,7 +969,7 @@ int cmd_mailinfo(int argc, const char **argv, const char *prefix)
        /* NEEDSWORK: might want to do the optional .git/ directory
         * discovery
         */
-       git_config(git_default_config);
+       git_config(git_default_config, NULL);
 
        def_charset = (git_commit_encoding ? git_commit_encoding : "utf-8");
        metainfo_charset = def_charset;