[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [PATCH v3 1/2] xenpmd.c: use dynamic allocation
On NetBSD, d_name is larger than 256, so file_name[284] may not be large enough (and gcc emits a format-truncation error). Use asprintf() instead of snprintf() on a static on-stack buffer. Signed-off-by: Manuel Bouyer <bouyer@xxxxxxxxxx> Reviewed-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx> --- tools/xenpmd/xenpmd.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/tools/xenpmd/xenpmd.c b/tools/xenpmd/xenpmd.c index 12b82cf43e..e432aad856 100644 --- a/tools/xenpmd/xenpmd.c +++ b/tools/xenpmd/xenpmd.c @@ -101,7 +101,7 @@ FILE *get_next_battery_file(DIR *battery_dir, { FILE *file = 0; struct dirent *dir_entries; - char file_name[284]; + char *file_name; int ret; do @@ -112,16 +112,16 @@ FILE *get_next_battery_file(DIR *battery_dir, if ( strlen(dir_entries->d_name) < 4 ) continue; if ( battery_info_type == BIF ) - ret = snprintf(file_name, sizeof(file_name), BATTERY_INFO_FILE_PATH, + ret = asprintf(&file_name, BATTERY_INFO_FILE_PATH, dir_entries->d_name); else - ret = snprintf(file_name, sizeof(file_name), BATTERY_STATE_FILE_PATH, + ret = asprintf(&file_name, BATTERY_STATE_FILE_PATH, dir_entries->d_name); /* This should not happen but is needed to pass gcc checks */ if (ret < 0) continue; - file_name[sizeof(file_name) - 1] = '\0'; file = fopen(file_name, "r"); + free(file_name); } while ( !file ); return file; -- 2.29.2
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