trace-cmd: Fix temp files in trace-cmd split to include directories

If a directory is specified in the output file for trace-cmd split,
then it would fault because of the adding of the prefix ".tmp"
to the output name. This patch fixes the issues by parsing out the
directory name and basename from the output path.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 10 insertions, 1 deletions

diff --git a/trace-split.c b/trace-split.c
index 9840d62..489e6cf 100644
--- a/trace-split.c
+++ b/trace-split.c
@@ -24,6 +24,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <libgen.h>
 #include <getopt.h>
 #include <stdarg.h>
 #include <sys/types.h>
@@ -333,11 +334,18 @@ static double parse_file(struct tracecmd_input *handle,
         struct cpu_data *cpu_data;
         struct record *record;
         char **cpu_list;
+        char *output;
+        char *base;
         char *file;
+        char *dir;
         int cpus;
         int cpu;
         int fd;
 
+        output = strdup(output_file);
+        dir = dirname(output);
+        base = basename(output);
+
         ohandle = tracecmd_copy(handle, output_file);
 
         cpus = tracecmd_cpus(handle);
@@ -345,7 +353,7 @@ static double parse_file(struct tracecmd_input *handle,
 
         for (cpu = 0; cpu < cpus; cpu++) {
                 file = malloc_or_die(strlen(output_file) + 50);
-                sprintf(file, ".tmp.%s.%d", output_file, cpu);
+                sprintf(file, "%s/.tmp.%s.%d", dir, base, cpu);
                 fd = open(file, O_WRONLY | O_CREAT | O_TRUNC | O_LARGEFILE, 0644);
                 cpu_data[cpu].cpu = cpu;
                 cpu_data[cpu].fd = fd;
@@ -383,6 +391,7 @@ static double parse_file(struct tracecmd_input *handle,
         }
         free(cpu_data);
         free(cpu_list);
+        free(output);
         tracecmd_output_close(ohandle);
 
         return current;