X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Futil.c;h=da8a6c33361863a08d32b60c39393e3675bec237;hb=294d81f124568983323a53f40bfbaa371f0da077;hp=519d22902ae2f4e9edba6bf50e245a944db407b1;hpb=4c633005eacdf964d22107f453ba804868f33a25;p=elogind.git

diff --git a/src/util.c b/src/util.c
index 519d22902..da8a6c333 100644
--- a/src/util.c
+++ b/src/util.c
@@ -2778,7 +2778,7 @@ void status_welcome(void) {
 char *replace_env(const char *format, char **env) {
         enum {
                 WORD,
-                DOLLAR,
+                CURLY,
                 VARIABLE
         } state = WORD;
 
@@ -2793,11 +2793,11 @@ char *replace_env(const char *format, char **env) {
 
                 case WORD:
                         if (*e == '$')
-                                state = DOLLAR;
+                                state = CURLY;
                         break;
 
-                case DOLLAR:
-                        if (*e == '(') {
+                case CURLY:
+                        if (*e == '{') {
                                 if (!(k = strnappend(r, word, e-word-1)))
                                         goto fail;
 
@@ -2821,7 +2821,7 @@ char *replace_env(const char *format, char **env) {
                         break;
 
                 case VARIABLE:
-                        if (*e == ')') {
+                        if (*e == '}') {
                                 char *t;
 
                                 if ((t = strv_env_get_with_length(env, word+2, e-word-2))) {
@@ -2853,12 +2853,49 @@ fail:
 
 char **replace_env_argv(char **argv, char **env) {
         char **r, **i;
-        unsigned k = 0;
+        unsigned k = 0, l = 0;
+
+        l = strv_length(argv);
 
-        if (!(r = new(char*, strv_length(argv)+1)))
+        if (!(r = new(char*, l+1)))
                 return NULL;
 
         STRV_FOREACH(i, argv) {
+
+                /* If $FOO appears as single word, replace it by the split up variable */
+                if ((*i)[0] == '$') {
+                        char *e = strv_env_get(env, *i+1);
+
+                        if (e) {
+                                char **w, **m;
+                                unsigned q;
+
+                                if (!(m = strv_split_quoted(e))) {
+                                        r[k] = NULL;
+                                        strv_free(r);
+                                        return NULL;
+                                }
+
+                                q = strv_length(m);
+                                l = l + q - 1;
+
+                                if (!(w = realloc(r, sizeof(char*) * (l+1)))) {
+                                        r[k] = NULL;
+                                        strv_free(r);
+                                        strv_free(m);
+                                        return NULL;
+                                }
+
+                                r = w;
+                                memcpy(r + k, m, q * sizeof(char*));
+                                free(m);
+
+                                k += q;
+                                continue;
+                        }
+                }
+
+                /* If ${FOO} appears as part of a word, replace it by the variable as-is */
                 if (!(r[k++] = replace_env(*i, env))) {
                         strv_free(r);
                         return NULL;
@@ -2912,6 +2949,38 @@ int running_in_chroot(void) {
                 a.st_ino != b.st_ino;
 }
 
+char *ellipsize(const char *s, unsigned length, unsigned percent) {
+        size_t l, x;
+        char *r;
+
+        assert(s);
+        assert(percent <= 100);
+        assert(length >= 3);
+
+        l = strlen(s);
+
+        if (l <= 3 || l <= length)
+                return strdup(s);
+
+        if (!(r = new0(char, length+1)))
+                return r;
+
+        x = (length * percent) / 100;
+
+        if (x > length - 3)
+                x = length - 3;
+
+        memcpy(r, s, x);
+        r[x] = '.';
+        r[x+1] = '.';
+        r[x+2] = '.';
+        memcpy(r + x + 3,
+               s + l - (length - x - 3),
+               length - x - 3);
+
+        return r;
+}
+
 static const char *const ioprio_class_table[] = {
         [IOPRIO_CLASS_NONE] = "none",
         [IOPRIO_CLASS_RT] = "realtime",