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authorAdrian Hunter <adrian.hunter@intel.com>2013-10-14 13:43:41 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-10-14 10:29:23 -0300
commit9a17d7268d71674f0bbff6821f7d8e6dc0ece19a (patch)
tree8d07c360badff5c323188e0124f0770924ea8632 /tools/perf
parent6e427ab02c8886ca6c9ecdbb318e68fe8f605469 (diff)
downloadop-kernel-dev-9a17d7268d71674f0bbff6821f7d8e6dc0ece19a.zip
op-kernel-dev-9a17d7268d71674f0bbff6821f7d8e6dc0ece19a.tar.gz
perf tools: Add copyfile_mode()
Add a function to copy a file specifying the permissions to use for the created file. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1381747424-3557-5-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/util/util.c18
-rw-r--r--tools/perf/util/util.h1
2 files changed, 14 insertions, 5 deletions
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index ab71d62..8dc8cf3 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -55,17 +55,20 @@ int mkdir_p(char *path, mode_t mode)
return (stat(path, &st) && mkdir(path, mode)) ? -1 : 0;
}
-static int slow_copyfile(const char *from, const char *to)
+static int slow_copyfile(const char *from, const char *to, mode_t mode)
{
- int err = 0;
+ int err = -1;
char *line = NULL;
size_t n;
FILE *from_fp = fopen(from, "r"), *to_fp;
+ mode_t old_umask;
if (from_fp == NULL)
goto out;
+ old_umask = umask(mode ^ 0777);
to_fp = fopen(to, "w");
+ umask(old_umask);
if (to_fp == NULL)
goto out_fclose_from;
@@ -82,7 +85,7 @@ out:
return err;
}
-int copyfile(const char *from, const char *to)
+int copyfile_mode(const char *from, const char *to, mode_t mode)
{
int fromfd, tofd;
struct stat st;
@@ -93,13 +96,13 @@ int copyfile(const char *from, const char *to)
goto out;
if (st.st_size == 0) /* /proc? do it slowly... */
- return slow_copyfile(from, to);
+ return slow_copyfile(from, to, mode);
fromfd = open(from, O_RDONLY);
if (fromfd < 0)
goto out;
- tofd = creat(to, 0755);
+ tofd = creat(to, mode);
if (tofd < 0)
goto out_close_from;
@@ -121,6 +124,11 @@ out:
return err;
}
+int copyfile(const char *from, const char *to)
+{
+ return copyfile_mode(from, to, 0755);
+}
+
unsigned long convert_unit(unsigned long value, char *unit)
{
*unit = ' ';
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 1f06ba4..42dfba7 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -243,6 +243,7 @@ static inline int sane_case(int x, int high)
int mkdir_p(char *path, mode_t mode);
int copyfile(const char *from, const char *to);
+int copyfile_mode(const char *from, const char *to, mode_t mode);
s64 perf_atoll(const char *str);
char **argv_split(const char *str, int *argcp);
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