curl: check fseek() return code and bail on error (299896ca) · Commits · CYBER - Cyber Security / TS 103 523 MSP / TLMSP / TLMSP curl

src/tool_operate.c

+10 −2

Original line number	Diff line number	Diff line
		@@ -1668,6 +1668,7 @@ static CURLcode operate_do(struct GlobalConfig *global,
		retry_sleep = RETRY_SLEEP_MAX;
		}
		if(outs.bytes && outs.filename && outs.stream) {
		int rc;
		/* We have written data to a output file, we truncate file
		*/
		if(!global->mute)
		@@ -1688,14 +1689,21 @@ static CURLcode operate_do(struct GlobalConfig *global,
		}
		/* now seek to the end of the file, the position where we
		just truncated the file in a large file-safe way */
		fseek(outs.stream, 0, SEEK_END);
		rc = fseek(outs.stream, 0, SEEK_END);
		#else
		/* ftruncate is not available, so just reposition the file
		to the location we would have truncated it. This won't
		work properly with large files on 32-bit systems, but
		most of those will have ftruncate. */
		fseek(outs.stream, (long)outs.init, SEEK_SET);
		rc = fseek(outs.stream, (long)outs.init, SEEK_SET);
		#endif
		if(rc) {
		if(!global->mute)
		fprintf(global->errors,
		"failed seeking to end of file, exiting\n");
		result = CURLE_WRITE_ERROR;
		goto quit_urls;
		}
		outs.bytes = 0; /* clear for next round */
		}
		continue; /* curl_easy_perform loop */