First commit (everything was written 2024)

Signed-off-by: Mattias Andrée <m@maandree.se>

1 files changed, 54 insertions, 0 deletions

diff --git a/liblog_use_output.c b/liblog_use_output.c
new file mode 100644
index 0000000..3471722
--- /dev/null
+++ b/liblog_use_output.c
@@ -0,0 +1,54 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+#ifndef TEST
+
+struct liblog_output *
+liblog_use_output(struct liblog_context *ctx, const struct liblog_output *output)
+{
+	void *new;
+
+	if (!ctx || !output)
+		goto einval;
+
+	if (output->lowest_verbosity_unlimited && output->highest_verbosity_unlimited)
+		if (output->lowest_verbosity > output->highest_verbosity)
+			goto einval;
+
+	if (output->sink_type == LIBLOG_STREAM) {
+		if (!output->sink.stream.stream)
+			goto einval;
+	} else if (output->sink_type != LIBLOG_SYSLOG && output->sink_type != LIBLOG_FILE) {
+		/*
+		 * We do not want to validate syslog level,
+		 * nor do we want to validate file descriptor,
+		 * indeed the user may want to output to a negative
+		 * file descriptor so that it only visible during
+		 * system call tracing
+		 */
+	einval:
+		errno = EINVAL;
+		return NULL;
+	}
+
+	if (ctx->noutputs > SIZE_MAX / sizeof(*ctx->outputs) - 1)
+		goto enomem;
+	new = realloc(ctx->outputs, (ctx->noutputs + 1) * sizeof(*ctx->outputs));
+	if (!new) {
+	enomem:
+		errno = ENOMEM;
+		return NULL;
+	}
+
+	memcpy(&ctx->outputs[ctx->noutputs], output, sizeof(*output));
+
+	if (!ctx->outputs[ctx->noutputs].prefixfmt)
+		ctx->outputs[ctx->noutputs].prefixfmt = DEFAULT_PREFIXFMT;
+
+	return &ctx->outputs[ctx->noutputs++];
+}
+
+#else
+
+int main(void) {return 0;} /* TODO test */
+
+#endif