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authorLennart Poettering <lennart@poettering.net>2014-02-19 17:52:28 +0100
committerLennart Poettering <lennart@poettering.net>2014-02-19 17:53:50 +0100
commit833fce2857bcf9cba316d3f8c37af8997b6a80ab (patch)
treee67fb37e867a2b66b95f08ae273ad5bbd7eb3d83 /src
parent480a61ae742378a6a9a0eb84cf29c6c1e4ea22ff (diff)
util: simplify get_ctty()
Diffstat (limited to 'src')
-rw-r--r--src/shared/util.c27
1 files changed, 8 insertions, 19 deletions
diff --git a/src/shared/util.c b/src/shared/util.c
index 35e4338c3a..b33f1203e6 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -2526,9 +2526,11 @@ int get_ctty_devnr(pid_t pid, dev_t *d) {
}
int get_ctty(pid_t pid, dev_t *_devnr, char **r) {
- int k;
- char fn[sizeof("/dev/char/")-1 + 2*DECIMAL_STR_MAX(unsigned) + 1 + 1], *s, *b, *p;
+ char fn[sizeof("/dev/char/")-1 + 2*DECIMAL_STR_MAX(unsigned) + 1 + 1], *b = NULL;
+ _cleanup_free_ char *s = NULL;
+ const char *p;
dev_t devnr;
+ int k;
assert(r);
@@ -2546,14 +2548,8 @@ int get_ctty(pid_t pid, dev_t *_devnr, char **r) {
/* This is an ugly hack */
if (major(devnr) == 136) {
- if (asprintf(&b, "pts/%lu", (unsigned long) minor(devnr)) < 0)
- return -ENOMEM;
-
- *r = b;
- if (_devnr)
- *_devnr = devnr;
-
- return 0;
+ asprintf(&b, "pts/%lu", (unsigned long) minor(devnr));
+ goto finish;
}
/* Probably something like the ptys which have no
@@ -2561,14 +2557,7 @@ int get_ctty(pid_t pid, dev_t *_devnr, char **r) {
* vaguely useful. */
b = strdup(fn + 5);
- if (!b)
- return -ENOMEM;
-
- *r = b;
- if (_devnr)
- *_devnr = devnr;
-
- return 0;
+ goto finish;
}
if (startswith(s, "/dev/"))
@@ -2579,8 +2568,8 @@ int get_ctty(pid_t pid, dev_t *_devnr, char **r) {
p = s;
b = strdup(p);
- free(s);
+finish:
if (!b)
return -ENOMEM;