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-rw-r--r--tools/nngcat/CMakeLists.txt1
-rw-r--r--tools/nngcat/nngcat.c56
-rwxr-xr-xtools/nngcat/nngcat_stdin_pipe_test.sh44
3 files changed, 86 insertions, 15 deletions
diff --git a/tools/nngcat/CMakeLists.txt b/tools/nngcat/CMakeLists.txt
index 6edf3bda..bcfc575b 100644
--- a/tools/nngcat/CMakeLists.txt
+++ b/tools/nngcat/CMakeLists.txt
@@ -29,5 +29,6 @@ if (NNG_ENABLE_NNGCAT)
add_nngcat_test (nngcat_pubsub 20)
add_nngcat_test (nngcat_recvmaxsz 20)
add_nngcat_test (nngcat_unlimited 20)
+ add_nngcat_test (nngcat_stdin_pipe 20)
endif()
endif()
diff --git a/tools/nngcat/nngcat.c b/tools/nngcat/nngcat.c
index ab891830..7b5146c0 100644
--- a/tools/nngcat/nngcat.c
+++ b/tools/nngcat/nngcat.c
@@ -1,6 +1,7 @@
//
// Copyright 2019 Staysail Systems, Inc. <info@staysail.tech>
// Copyright 2018 Capitar IT Group BV <info@capitar.com>
+// Copyright 2020 Lager Data, Inc. <support@lagerdata.com>
//
// This software is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
@@ -272,7 +273,8 @@ help(void)
printf(" --key <file>\n");
printf(" --zt-home <path>\n");
printf("\n<src> may be one of:\n");
- printf(" --file <file> (or alias -F <file>)\n");
+ printf(" --file <file> (or alias -F <file>). "
+ "Use - for standard input.\n");
printf(" --data <data> (or alias -D <data>)\n");
exit(1);
}
@@ -309,28 +311,52 @@ static void
loadfile(const char *path, void **datap, size_t *lenp)
{
FILE * f;
+ size_t total_read = 0;
+ size_t allocation_size = BUFSIZ;
char * fdata;
- size_t len;
+ char * realloc_result;
- if ((f = fopen(path, "r")) == NULL) {
- fatal("Cannot open file %s: %s", path, strerror(errno));
- }
- if (fseek(f, 0, SEEK_END) != 0) {
- fatal("Cannot seek to end of file: %s", strerror(errno));
+ if (strcmp(path, "-") == 0) {
+ f = stdin;
+ } else {
+ if ((f = fopen(path, "rb")) == NULL) {
+ fatal("Cannot open file %s: %s", path, strerror(errno));
+ }
}
- len = ftell(f);
- (void) fseek(f, 0, SEEK_SET);
- if ((fdata = malloc(len + 1)) == NULL) {
+
+ if ((fdata = malloc(allocation_size + 1)) == NULL) {
fatal("Out of memory.");
}
- fdata[len] = '\0';
- if (fread(fdata, 1, len, f) != len) {
- fatal("Read file %s failed: %s", path, strerror(errno));
+ while (1) {
+ total_read += fread(fdata + total_read, 1, allocation_size - total_read, f);
+ if (ferror(f)) {
+ if (errno == EINTR) {
+ continue;
+ }
+ fatal("Read from %s failed: %s", path, strerror(errno));
+ }
+ if (feof(f)) {
+ break;
+ }
+ if (total_read == allocation_size) {
+ if (allocation_size > SIZE_MAX / 2) {
+ fatal("Out of memory.");
+ }
+ allocation_size *= 2;
+ if ((realloc_result = realloc(fdata, allocation_size + 1)) == NULL) {
+ free(fdata);
+ fatal("Out of memory.");
+ }
+ fdata = realloc_result;
+ }
+ }
+ if (f != stdin) {
+ fclose(f);
}
- fclose(f);
+ fdata[total_read] = '\0';
*datap = fdata;
- *lenp = len;
+ *lenp = total_read;
}
static void
diff --git a/tools/nngcat/nngcat_stdin_pipe_test.sh b/tools/nngcat/nngcat_stdin_pipe_test.sh
new file mode 100755
index 00000000..5fec0ab7
--- /dev/null
+++ b/tools/nngcat/nngcat_stdin_pipe_test.sh
@@ -0,0 +1,44 @@
+#!/bin/bash
+
+#
+# Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
+# Copyright 2018 Capitar IT Group BV <info@capitar.com>
+# Copyright 2020 Lager Data, Inc. <support@lagerdata.com>
+#
+# This software is supplied under the terms of the MIT License, a
+# copy of which should be located in the distribution where this
+# file was obtained (LICENSE.txt). A copy of the license may also be
+# found online at https://opensource.org/licenses/MIT.
+#
+
+NNGCAT=${NNGCAT:=$1}
+NNGCAT=${NNGCAT:-./nngcat}
+ADDR="ipc:///tmp/nngcat_stdin_pipe_test"
+OUTPUT=/tmp/nngcat_stdin_pipe_test.$$.out
+
+echo -n "Verify reading from stdin pipe: "
+
+trap "rm $OUTPUT" 0
+
+${NNGCAT} --listen ${ADDR} --count=1 --recv-timeout=3 --recv-maxsz=0 --pull0 --raw > $OUTPUT 2>/dev/null &
+bgid=$!
+
+sleep 1
+# for speed of execution, run these in the background, they should be ignored
+echo "hello world" | ${NNGCAT} --connect ${ADDR} --delay=1 --push0 --file -
+wait "$bgid" 2>/dev/null
+
+sum=$(cksum ${OUTPUT})
+sum=${sum%% *}
+
+# This matches "hello world\n" since echo adds a trailing newline
+if [[ ${sum} == 3733384285 ]]
+then
+ echo "pass"
+ exit 0
+fi
+echo "FAIL: Checksum failed (Wanted 3733384285 got ${sum})"
+echo "OUTPUT:"
+ls -la ${OUTPUT}
+
+exit 1