diff options
Diffstat (limited to 'fsck.c')
| -rw-r--r-- | fsck.c | 61 |
1 files changed, 47 insertions, 14 deletions
@@ -222,12 +222,47 @@ static int fsck_tree(struct tree *item, int strict, fsck_error error_func) return retval; } +static int fsck_ident(char **ident, struct object *obj, fsck_error error_func) +{ + if (**ident == '<' || **ident == '\n') + return error_func(obj, FSCK_ERROR, "invalid author/committer line - missing space before email"); + *ident += strcspn(*ident, "<\n"); + if ((*ident)[-1] != ' ') + return error_func(obj, FSCK_ERROR, "invalid author/committer line - missing space before email"); + if (**ident != '<') + return error_func(obj, FSCK_ERROR, "invalid author/committer line - missing email"); + (*ident)++; + *ident += strcspn(*ident, "<>\n"); + if (**ident != '>') + return error_func(obj, FSCK_ERROR, "invalid author/committer line - bad email"); + (*ident)++; + if (**ident != ' ') + return error_func(obj, FSCK_ERROR, "invalid author/committer line - missing space before date"); + (*ident)++; + if (**ident == '0' && (*ident)[1] != ' ') + return error_func(obj, FSCK_ERROR, "invalid author/committer line - zero-padded date"); + *ident += strspn(*ident, "0123456789"); + if (**ident != ' ') + return error_func(obj, FSCK_ERROR, "invalid author/committer line - bad date"); + (*ident)++; + if ((**ident != '+' && **ident != '-') || + !isdigit((*ident)[1]) || + !isdigit((*ident)[2]) || + !isdigit((*ident)[3]) || + !isdigit((*ident)[4]) || + ((*ident)[5] != '\n')) + return error_func(obj, FSCK_ERROR, "invalid author/committer line - bad time zone"); + (*ident) += 6; + return 0; +} + static int fsck_commit(struct commit *commit, fsck_error error_func) { char *buffer = commit->buffer; unsigned char tree_sha1[20], sha1[20]; struct commit_graft *graft; int parents = 0; + int err; if (commit->date == ULONG_MAX) return error_func(&commit->object, FSCK_ERROR, "invalid author/committer line"); @@ -266,6 +301,16 @@ static int fsck_commit(struct commit *commit, fsck_error error_func) } if (memcmp(buffer, "author ", 7)) return error_func(&commit->object, FSCK_ERROR, "invalid format - expected 'author' line"); + buffer += 7; + err = fsck_ident(&buffer, &commit->object, error_func); + if (err) + return err; + if (memcmp(buffer, "committer ", strlen("committer "))) + return error_func(&commit->object, FSCK_ERROR, "invalid format - expected 'committer' line"); + buffer += strlen("committer "); + err = fsck_ident(&buffer, &commit->object, error_func); + if (err) + return err; if (!commit->tree) return error_func(&commit->object, FSCK_ERROR, "could not load commit's tree %s", sha1_to_hex(tree_sha1)); @@ -302,26 +347,14 @@ int fsck_object(struct object *obj, int strict, fsck_error error_func) int fsck_error_function(struct object *obj, int type, const char *fmt, ...) { va_list ap; - int len; struct strbuf sb = STRBUF_INIT; - strbuf_addf(&sb, "object %s:", obj->sha1?sha1_to_hex(obj->sha1):"(null)"); + strbuf_addf(&sb, "object %s:", sha1_to_hex(obj->sha1)); va_start(ap, fmt); - len = vsnprintf(sb.buf + sb.len, strbuf_avail(&sb), fmt, ap); + strbuf_vaddf(&sb, fmt, ap); va_end(ap); - if (len < 0) - len = 0; - if (len >= strbuf_avail(&sb)) { - strbuf_grow(&sb, len + 2); - va_start(ap, fmt); - len = vsnprintf(sb.buf + sb.len, strbuf_avail(&sb), fmt, ap); - va_end(ap); - if (len >= strbuf_avail(&sb)) - die("this should not happen, your snprintf is broken"); - } - error("%s", sb.buf); strbuf_release(&sb); return 1; |