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authorLaurent Bercot <ska-skaware@skarnet.org>2014-09-18 18:55:44 +0000
committerLaurent Bercot <ska-skaware@skarnet.org>2014-09-18 18:55:44 +0000
commit3534b428629be185e096be99e3bd5fdfe32d5544 (patch)
tree210ef3198ed66bc7f7b7bf6a85e4579f455e5a36 /src/libstddjb/env_addmodif.c
downloadskalibs-3534b428629be185e096be99e3bd5fdfe32d5544.tar.xz
initial commit with rc for skalibs-2.0.0.0
Diffstat (limited to 'src/libstddjb/env_addmodif.c')
-rw-r--r--src/libstddjb/env_addmodif.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/libstddjb/env_addmodif.c b/src/libstddjb/env_addmodif.c
new file mode 100644
index 0000000..4c34479
--- /dev/null
+++ b/src/libstddjb/env_addmodif.c
@@ -0,0 +1,18 @@
+/* ISC license. */
+
+#include <skalibs/stralloc.h>
+#include <skalibs/env.h>
+
+int env_addmodif (stralloc *sa, char const *s, char const *t)
+{
+ unsigned int oldlen = sa->len ;
+ if (!s) return 1 ;
+ if (!stralloc_cats(sa, s)) return 0 ;
+ if ((t && (!stralloc_catb(sa, "=", 1) || !stralloc_cats(sa, t)))
+ || !stralloc_0(sa))
+ {
+ sa->len = oldlen ;
+ return 0 ;
+ }
+ return 1 ;
+}