On Sat, Mar 1, 2014 at 9:29 PM, Sun He <sunheeh...@gmail.com> wrote:
> Signed-off-by: Sun He <sunheeh...@gmail.com>
> Helped-by: Eric Sunshine <sunsh...@sunshineco.com>
> Helped-by: Michael Haggerty <mhag...@alum.mit.edu>
> ---
>
> This patch has assumed that you have already fix the bug of
> tmpname in builtin/pack-objects.c:write_pack_file() warning()
>
>
>  builtin/pack-objects.c | 15 ++++++---------
>  bulk-checkin.c         |  8 +++++---
>  pack-write.c           | 18 ++++++++++--------
>  pack.h                 |  2 +-
>  4 files changed, 22 insertions(+), 21 deletions(-)
>
> diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
> index c733379..099d6ed 100644
> --- a/builtin/pack-objects.c
> +++ b/builtin/pack-objects.c
> @@ -803,7 +803,7 @@ static void write_pack_file(void)
>
>                 if (!pack_to_stdout) {
>                         struct stat st;
> -                       char tmpname[PATH_MAX];
> +                       struct strbuf tmpname = STRBUF_INIT;
>
>                         /*
>                          * Packs are runtime accessed in their mtime
> @@ -826,23 +826,19 @@ static void write_pack_file(void)
>                                                 tmpname, strerror(errno));
>                         }
>
> -                       /* Enough space for "-<sha-1>.pack"? */
> -                       if (sizeof(tmpname) <= strlen(base_name) + 50)
> -                               die("pack base name '%s' too long", 
> base_name);
> -                       snprintf(tmpname, sizeof(tmpname), "%s-", base_name);
> +                       strbuf_addf(&tmpname, "%s-", base_name);
>
>                         if (write_bitmap_index) {
>                                 bitmap_writer_set_checksum(sha1);
>                                 bitmap_writer_build_type_index(written_list, 
> nr_written);
>                         }
>
> -                       finish_tmp_packfile(tmpname, pack_tmp_name,
> +                       finish_tmp_packfile(&tmpname, pack_tmp_name,
>                                             written_list, nr_written,
>                                             &pack_idx_opts, sha1);
>
>                         if (write_bitmap_index) {
> -                               char *end_of_name_prefix = strrchr(tmpname, 
> 0);
> -                               sprintf(end_of_name_prefix, "%s.bitmap", 
> sha1_to_hex(sha1));
> +                               strbuf_addf(&tmpname, "%s.bitmap" 
> ,sha1_to_hex(sha1));

Transpose the space and comma before the third argument.

Other than this, the patch looks reasonable.

>                                 stop_progress(&progress_state);
>
> @@ -851,10 +847,11 @@ static void write_pack_file(void)
>                                 bitmap_writer_select_commits(indexed_commits, 
> indexed_commits_nr, -1);
>                                 bitmap_writer_build(&to_pack);
>                                 bitmap_writer_finish(written_list, nr_written,
> -                                                    tmpname, 
> write_bitmap_options);
> +                                                    tmpname.buf, 
> write_bitmap_options);
>                                 write_bitmap_index = 0;
>                         }
>
> +                       strbuf_release(&tmpname);
>                         free(pack_tmp_name);
>                         puts(sha1_to_hex(sha1));
>                 }
> diff --git a/bulk-checkin.c b/bulk-checkin.c
> index 118c625..98e651c 100644
> --- a/bulk-checkin.c
> +++ b/bulk-checkin.c
> @@ -4,6 +4,7 @@
>  #include "bulk-checkin.h"
>  #include "csum-file.h"
>  #include "pack.h"
> +#include "strbuf.h"
>
>  static int pack_compression_level = Z_DEFAULT_COMPRESSION;
>
> @@ -23,7 +24,7 @@ static struct bulk_checkin_state {
>  static void finish_bulk_checkin(struct bulk_checkin_state *state)
>  {
>         unsigned char sha1[20];
> -       char packname[PATH_MAX];
> +       struct strbuf packname = STRBUF_INIT;
>         int i;
>
>         if (!state->f)
> @@ -43,8 +44,8 @@ static void finish_bulk_checkin(struct bulk_checkin_state 
> *state)
>                 close(fd);
>         }
>
> -       sprintf(packname, "%s/pack/pack-", get_object_directory());
> -       finish_tmp_packfile(packname, state->pack_tmp_name,
> +       strbuf_addf(&packname, "%s/pack/pack-", get_object_directory());
> +       finish_tmp_packfile(&packname, state->pack_tmp_name,
>                             state->written, state->nr_written,
>                             &state->pack_idx_opts, sha1);
>         for (i = 0; i < state->nr_written; i++)
> @@ -54,6 +55,7 @@ clear_exit:
>         free(state->written);
>         memset(state, 0, sizeof(*state));
>
> +       strbuf_release(&packname);
>         /* Make objects we just wrote available to ourselves */
>         reprepare_packed_git();
>  }
> diff --git a/pack-write.c b/pack-write.c
> index 9b8308b..9ccf804 100644
> --- a/pack-write.c
> +++ b/pack-write.c
> @@ -336,7 +336,7 @@ struct sha1file *create_tmp_packfile(char **pack_tmp_name)
>         return sha1fd(fd, *pack_tmp_name);
>  }
>
> -void finish_tmp_packfile(char *name_buffer,
> +void finish_tmp_packfile(struct strbuf *name_buffer,
>                          const char *pack_tmp_name,
>                          struct pack_idx_entry **written_list,
>                          uint32_t nr_written,
> @@ -344,7 +344,7 @@ void finish_tmp_packfile(char *name_buffer,
>                          unsigned char sha1[])
>  {
>         const char *idx_tmp_name;
> -       char *end_of_name_prefix = strrchr(name_buffer, 0);
> +       int basename_len = name_buffer->len;
>
>         if (adjust_shared_perm(pack_tmp_name))
>                 die_errno("unable to make temporary pack file readable");
> @@ -354,17 +354,19 @@ void finish_tmp_packfile(char *name_buffer,
>         if (adjust_shared_perm(idx_tmp_name))
>                 die_errno("unable to make temporary index file readable");
>
> -       sprintf(end_of_name_prefix, "%s.pack", sha1_to_hex(sha1));
> -       free_pack_by_name(name_buffer);
> +       strbuf_addf(name_buffer, "%s.pack", sha1_to_hex(sha1));
> +       free_pack_by_name(name_buffer->buf);
>
> -       if (rename(pack_tmp_name, name_buffer))
> +       if (rename(pack_tmp_name, name_buffer->buf))
>                 die_errno("unable to rename temporary pack file");
>
> -       sprintf(end_of_name_prefix, "%s.idx", sha1_to_hex(sha1));
> -       if (rename(idx_tmp_name, name_buffer))
> +       strbuf_setlen(name_buffer, basename_len);
> +
> +       strbuf_addf(name_buffer, "%s.idx", sha1_to_hex(sha1));
> +       if (rename(idx_tmp_name, name_buffer->buf))
>                 die_errno("unable to rename temporary index file");
>
> -       *end_of_name_prefix = '\0';
> +       strbuf_setlen(name_buffer, basename_len);
>
>         free((void *)idx_tmp_name);
>  }
> diff --git a/pack.h b/pack.h
> index 12d9516..3223f5a 100644
> --- a/pack.h
> +++ b/pack.h
> @@ -91,6 +91,6 @@ extern int encode_in_pack_object_header(enum object_type, 
> uintmax_t, unsigned ch
>  extern int read_pack_header(int fd, struct pack_header *);
>
>  extern struct sha1file *create_tmp_packfile(char **pack_tmp_name);
> -extern void finish_tmp_packfile(char *name_buffer, const char 
> *pack_tmp_name, struct pack_idx_entry **written_list, uint32_t nr_written, 
> struct pack_idx_option *pack_idx_opts, unsigned char sha1[]);
> +extern void finish_tmp_packfile(struct strbuf *name_buffer, const char 
> *pack_tmp_name, struct pack_idx_entry **written_list, uint32_t nr_written, 
> struct pack_idx_option *pack_idx_opts, unsigned char sha1[]);
>
>  #endif
> --
> 1.9.0.138.g2de3478.dirty
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