diff options
Diffstat (limited to 'src/libimcv/imc/imc_os_info.c')
| -rw-r--r-- | src/libimcv/imc/imc_os_info.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/libimcv/imc/imc_os_info.c b/src/libimcv/imc/imc_os_info.c index 0a094eb23..55e152af5 100644 --- a/src/libimcv/imc/imc_os_info.c +++ b/src/libimcv/imc/imc_os_info.c @@ -383,6 +383,7 @@ static bool extract_platform_info(os_type_t *type, chunk_t *name, FILE *file; u_char buf[BUF_LEN], *pos = buf; int len = BUF_LEN - 1; + long file_len; os_type_t os_type = OS_TYPE_UNKNOWN; chunk_t os_name = chunk_empty; chunk_t os_version = chunk_empty; @@ -425,15 +426,22 @@ static bool extract_platform_info(os_type_t *type, chunk_t *name, /* read release file into buffer */ fseek(file, 0, SEEK_END); - len = min(ftell(file), len); + file_len = ftell(file); + if (file_len < 0) + { + DBG1(DBG_IMC, "failed to determine size of \"%s\"", releases[i]); + fclose(file); + return FALSE; + } + len = min(file_len, len); rewind(file); - buf[len] = '\0'; if (fread(buf, 1, len, file) != len) { DBG1(DBG_IMC, "failed to read file \"%s\"", releases[i]); fclose(file); return FALSE; } + buf[len] = '\0'; fclose(file); DBG1(DBG_IMC, "processing \"%s\" file", releases[i]); |