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Use tor_fgets() instead of fgets().

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This patch changes our use of fgets() to tor_fgets() for more consistent
error handling across different versions of the C library.
This commit is contained in:
Alexander Færøy 2017-02-27 15:42:57 +01:00
parent 498287b3c3
commit 3dca5a6e71
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GPG Key ID: E15081D5D3C3DB53
4 changed files with 14 additions and 14 deletions
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4
src/common/util.c
View File

@ -5020,7 +5020,7 @@ tor_read_all_handle(FILE *h, char *buf, size_t count,
while (numread != count) {
/* Use fgets because that is what we use in log_from_pipe() */
retval = fgets(buf+numread, (int)(count-numread), h);
retval = tor_fgets(buf+numread, (int)(count-numread), h);
if (NULL == retval) {
if (feof(h)) {
log_debug(LD_GENERAL, "fgets() reached end of file");
@ -5355,7 +5355,7 @@ get_string_from_pipe(FILE *stream, char *buf_out, size_t count)
tor_assert(count <= INT_MAX);
retval = fgets(buf_out, (int)count, stream);
retval = tor_fgets(buf_out, (int)count, stream);
if (!retval) {
if (feof(stream)) {

4
src/or/dirserv.c
View File

@ -2701,7 +2701,7 @@ dirserv_read_measured_bandwidths(const char *from_file,
return -1;
}
if (!fgets(line, sizeof(line), fp)
if (!tor_fgets(line, sizeof(line), fp)
|| !strlen(line) || line[strlen(line)-1] != '\n') {
log_warn(LD_DIRSERV, "Long or truncated time in bandwidth file: %s",
escaped(line));
@ -2731,7 +2731,7 @@ dirserv_read_measured_bandwidths(const char *from_file,
while (!feof(fp)) {
measured_bw_line_t parsed_line;
if (fgets(line, sizeof(line), fp) && strlen(line)) {
if (tor_fgets(line, sizeof(line), fp) && strlen(line)) {
if (measured_bw_line_parse(&parsed_line, line) != -1) {
/* Also cache the line for dirserv_get_bandwidth_for_router() */
dirserv_cache_measured_bw(&parsed_line, file_time);

2
src/or/geoip.c
View File

@ -346,7 +346,7 @@ geoip_load_file(sa_family_t family, const char *filename)
(family == AF_INET) ? "IPv4" : "IPv6", filename);
while (!feof(f)) {
char buf[512];
if (fgets(buf, (int)sizeof(buf), f) == NULL)
if (tor_fgets(buf, (int)sizeof(buf), f) == NULL)
break;
crypto_digest_add_bytes(geoip_digest_env, buf, strlen(buf));
/* FFFF track full country name. */

18
src/test/test_util.c
View File

@ -3972,16 +3972,16 @@ test_util_fgets_eagain(void *ptr)
/* Send in a partial line */
retlen = write(test_pipe[1], "A", 1);
tt_int_op(retlen, OP_EQ, 1);
retptr = fgets(buf, sizeof(buf), test_stream);
retptr = tor_fgets(buf, sizeof(buf), test_stream);
tt_int_op(errno, OP_EQ, EAGAIN);
tt_ptr_op(retptr, OP_EQ, buf);
tt_ptr_op(retptr, OP_EQ, NULL);
tt_str_op(buf, OP_EQ, "A");
errno = 0;
/* Send in the rest */
retlen = write(test_pipe[1], "B\n", 2);
tt_int_op(retlen, OP_EQ, 2);
retptr = fgets(buf, sizeof(buf), test_stream);
retptr = tor_fgets(buf, sizeof(buf), test_stream);
tt_int_op(errno, OP_EQ, 0);
tt_ptr_op(retptr, OP_EQ, buf);
tt_str_op(buf, OP_EQ, "B\n");
@ -3990,7 +3990,7 @@ test_util_fgets_eagain(void *ptr)
/* Send in a full line */
retlen = write(test_pipe[1], "CD\n", 3);
tt_int_op(retlen, OP_EQ, 3);
retptr = fgets(buf, sizeof(buf), test_stream);
retptr = tor_fgets(buf, sizeof(buf), test_stream);
tt_int_op(errno, OP_EQ, 0);
tt_ptr_op(retptr, OP_EQ, buf);
tt_str_op(buf, OP_EQ, "CD\n");
@ -3999,16 +3999,16 @@ test_util_fgets_eagain(void *ptr)
/* Send in a partial line */
retlen = write(test_pipe[1], "E", 1);
tt_int_op(retlen, OP_EQ, 1);
retptr = fgets(buf, sizeof(buf), test_stream);
retptr = tor_fgets(buf, sizeof(buf), test_stream);
tt_int_op(errno, OP_EQ, EAGAIN);
tt_ptr_op(retptr, OP_EQ, buf);
tt_ptr_op(retptr, OP_EQ, NULL);
tt_str_op(buf, OP_EQ, "E");
errno = 0;
/* Send in the rest */
retlen = write(test_pipe[1], "F\n", 2);
tt_int_op(retlen, OP_EQ, 2);
retptr = fgets(buf, sizeof(buf), test_stream);
retptr = tor_fgets(buf, sizeof(buf), test_stream);
tt_int_op(errno, OP_EQ, 0);
tt_ptr_op(retptr, OP_EQ, buf);
tt_str_op(buf, OP_EQ, "F\n");
@ -4020,14 +4020,14 @@ test_util_fgets_eagain(void *ptr)
retval = close(test_pipe[1]);
tt_int_op(retval, OP_EQ, 0);
test_pipe[1] = -1;
retptr = fgets(buf, sizeof(buf), test_stream);
retptr = tor_fgets(buf, sizeof(buf), test_stream);
tt_int_op(errno, OP_EQ, 0);
tt_ptr_op(retptr, OP_EQ, buf);
tt_str_op(buf, OP_EQ, "GH");
errno = 0;
/* Check for EOF */
retptr = fgets(buf, sizeof(buf), test_stream);
retptr = tor_fgets(buf, sizeof(buf), test_stream);
tt_int_op(errno, OP_EQ, 0);
tt_ptr_op(retptr, OP_EQ, NULL);
retval = feof(test_stream);