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authorLennart Poettering <lennart@poettering.net>2014-12-03 18:31:51 +0100
committerLennart Poettering <lennart@poettering.net>2014-12-03 18:31:51 +0100
commit98940a3cd93807b5a3809bb1fb7ab43d450939f1 (patch)
treedbb62547f2b34adcb2bab0b382d24382cf5f84ef /src/shared
parent8433e33955f797510a3f323da9ffa08d12c374f4 (diff)
strv: add calls to add two entries to an strv at once
Diffstat (limited to 'src/shared')
-rw-r--r--src/shared/strv.c42
-rw-r--r--src/shared/strv.h2
2 files changed, 43 insertions, 1 deletions
diff --git a/src/shared/strv.c b/src/shared/strv.c
index a5f8a2aff6..fdb658c0a3 100644
--- a/src/shared/strv.c
+++ b/src/shared/strv.c
@@ -388,7 +388,7 @@ int strv_push(char ***l, char *value) {
n = strv_length(*l);
- /* increase and check for overflow */
+ /* Increase and check for overflow */
m = n + 2;
if (m < n)
return -ENOMEM;
@@ -404,6 +404,34 @@ int strv_push(char ***l, char *value) {
return 0;
}
+int strv_push_pair(char ***l, char *a, char *b) {
+ char **c;
+ unsigned n, m;
+
+ if (!a && !b)
+ return 0;
+
+ n = strv_length(*l);
+
+ /* increase and check for overflow */
+ m = n + !!a + !!b + 1;
+ if (m < n)
+ return -ENOMEM;
+
+ c = realloc_multiply(*l, sizeof(char*), m);
+ if (!c)
+ return -ENOMEM;
+
+ if (a)
+ c[n++] = a;
+ if (b)
+ c[n++] = b;
+ c[n] = NULL;
+
+ *l = c;
+ return 0;
+}
+
int strv_push_prepend(char ***l, char *value) {
char **c;
unsigned n, m, i;
@@ -444,6 +472,18 @@ int strv_consume(char ***l, char *value) {
return r;
}
+int strv_consume_pair(char ***l, char *a, char *b) {
+ int r;
+
+ r = strv_push_pair(l, a, b);
+ if (r < 0) {
+ free(a);
+ free(b);
+ }
+
+ return r;
+}
+
int strv_consume_prepend(char ***l, char *value) {
int r;
diff --git a/src/shared/strv.h b/src/shared/strv.h
index 774c67a8c8..2c0280b713 100644
--- a/src/shared/strv.h
+++ b/src/shared/strv.h
@@ -42,8 +42,10 @@ int strv_extend_strv_concat(char ***a, char **b, const char *suffix);
int strv_extend(char ***l, const char *value);
int strv_extendf(char ***l, const char *format, ...) _printf_(2,0);
int strv_push(char ***l, char *value);
+int strv_push_pair(char ***l, char *a, char *b);
int strv_push_prepend(char ***l, char *value);
int strv_consume(char ***l, char *value);
+int strv_consume_pair(char ***l, char *a, char *b);
int strv_consume_prepend(char ***l, char *value);
char **strv_remove(char **l, const char *s);