diff options
Diffstat (limited to 'config.c')
| -rw-r--r-- | config.c | 40 |
1 files changed, 28 insertions, 12 deletions
@@ -1935,10 +1935,12 @@ int git_config_set_multivar_in_file(const char *config_filename, const char *key, const char *value, const char *value_regex, int multi_replace) { - int fd = -1, in_fd; + int fd = -1, in_fd = -1; int ret; struct lock_file *lock = NULL; char *filename_buf = NULL; + char *contents = NULL; + size_t contents_sz; /* parse-key returns negative; flip the sign to feed exit(3) */ ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); @@ -1988,8 +1990,7 @@ int git_config_set_multivar_in_file(const char *config_filename, goto write_err_out; } else { struct stat st; - char *contents; - size_t contents_sz, copy_begin, copy_end; + size_t copy_begin, copy_end; int i, new_line = 0; if (value_regex == NULL) @@ -2052,13 +2053,23 @@ int git_config_set_multivar_in_file(const char *config_filename, fstat(in_fd, &st); contents_sz = xsize_t(st.st_size); - contents = xmmap(NULL, contents_sz, PROT_READ, - MAP_PRIVATE, in_fd, 0); + contents = xmmap_gently(NULL, contents_sz, PROT_READ, + MAP_PRIVATE, in_fd, 0); + if (contents == MAP_FAILED) { + if (errno == ENODEV && S_ISDIR(st.st_mode)) + errno = EISDIR; + error("unable to mmap '%s': %s", + config_filename, strerror(errno)); + ret = CONFIG_INVALID_FILE; + contents = NULL; + goto out_free; + } close(in_fd); + in_fd = -1; - if (chmod(lock->filename.buf, st.st_mode & 07777) < 0) { + if (chmod(get_lock_file_path(lock), st.st_mode & 07777) < 0) { error("chmod on %s failed: %s", - lock->filename.buf, strerror(errno)); + get_lock_file_path(lock), strerror(errno)); ret = CONFIG_NO_WRITE; goto out_free; } @@ -2110,6 +2121,7 @@ int git_config_set_multivar_in_file(const char *config_filename, goto write_err_out; munmap(contents, contents_sz); + contents = NULL; } if (commit_lock_file(lock) < 0) { @@ -2135,10 +2147,14 @@ out_free: if (lock) rollback_lock_file(lock); free(filename_buf); + if (contents) + munmap(contents, contents_sz); + if (in_fd >= 0) + close(in_fd); return ret; write_err_out: - ret = write_error(lock->filename.buf); + ret = write_error(get_lock_file_path(lock)); goto out_free; } @@ -2239,9 +2255,9 @@ int git_config_rename_section_in_file(const char *config_filename, fstat(fileno(config_file), &st); - if (chmod(lock->filename.buf, st.st_mode & 07777) < 0) { + if (chmod(get_lock_file_path(lock), st.st_mode & 07777) < 0) { ret = error("chmod on %s failed: %s", - lock->filename.buf, strerror(errno)); + get_lock_file_path(lock), strerror(errno)); goto out; } @@ -2262,7 +2278,7 @@ int git_config_rename_section_in_file(const char *config_filename, } store.baselen = strlen(new_name); if (!store_write_section(out_fd, new_name)) { - ret = write_error(lock->filename.buf); + ret = write_error(get_lock_file_path(lock)); goto out; } /* @@ -2288,7 +2304,7 @@ int git_config_rename_section_in_file(const char *config_filename, continue; length = strlen(output); if (write_in_full(out_fd, output, length) != length) { - ret = write_error(lock->filename.buf); + ret = write_error(get_lock_file_path(lock)); goto out; } } |