parse socket files properly

[elogind.git] / conf-parser.c

diff --git a/conf-parser.c b/conf-parser.c
index c45acd770279a30429e78ea389338e8501238dad..3a7da7960ca84f5f5418f95603d27beed4702808 100644 (file)
--- a/conf-parser.c
+++ b/conf-parser.c
@@ -9,6 +9,7 @@
 #include "conf-parser.h"
 #include "util.h"
 #include "macro.h"
+#include "strv.h"
 
 #define WHITESPACE " \t\n"
 #define COMMENTS "#;\n"
@@ -43,7 +44,7 @@ static int next_assignment(
                 return t->parse(filename, line, section, lvalue, rvalue, t->data, userdata);
         }
 
-        fprintf(stderr, "[%s:%u] Unknown lvalue '%s' in section '%s'.", filename, line, lvalue, strna(section));
+        fprintf(stderr, "[%s:%u] Unknown lvalue '%s' in section '%s'.\n", filename, line, lvalue, strna(section));
         return -EBADMSG;
 }
 
@@ -75,7 +76,7 @@ static char *strip(char *s) {
 }
 
 /* Parse a variable assignment line */
-static int parse_line(const char *filename, unsigned line, char **section, const ConfigItem *t, char *l, void *userdata) {
+static int parse_line(const char *filename, unsigned line, char **section, const char* const * sections, const ConfigItem *t, char *l, void *userdata) {
         char *e, *c, *b;
 
         b = l+strspn(l, WHITESPACE);
@@ -108,7 +109,7 @@ static int parse_line(const char *filename, unsigned line, char **section, const
                         }
                 }
 
-                r = config_parse(fn, t, userdata);
+                r = config_parse(fn, sections, t, userdata);
                 free(path);
                 return r;
         }
@@ -121,13 +122,28 @@ static int parse_line(const char *filename, unsigned line, char **section, const
                 assert(k > 0);
 
                 if (b[k-1] != ']') {
-                        fprintf(stderr, "[%s:%u] Invalid section header.", filename, line);
+                        fprintf(stderr, "[%s:%u] Invalid section header.\n", filename, line);
                         return -EBADMSG;
                 }
 
                 if (!(n = strndup(b+1, k-2)))
                         return -ENOMEM;
 
+                if (sections) {
+                        const char * const * i;
+                        bool good = false;
+                        STRV_FOREACH(i, sections)
+                                if (streq(*i, n)) {
+                                        good = true;
+                                        break;
+                                }
+
+                        if (!good) {
+                                free(n);
+                                return -EBADMSG;
+                        }
+                }
+
                 free(*section);
                 *section = n;
 
@@ -135,7 +151,7 @@ static int parse_line(const char *filename, unsigned line, char **section, const
         }
 
         if (!(e = strchr(b, '='))) {
-                fprintf(stderr, "[%s:%u] Missing '='.", filename, line);
+                fprintf(stderr, "[%s:%u] Missing '='.\n", filename, line);
                 return -EBADMSG;
         }
 
@@ -146,7 +162,7 @@ static int parse_line(const char *filename, unsigned line, char **section, const
 }
 
 /* Go through the file and parse each line */
-int config_parse(const char *filename, const ConfigItem *t, void *userdata) {
+int config_parse(const char *filename, const char* const * sections, const ConfigItem *t, void *userdata) {
         unsigned line = 0;
         char *section = NULL;
         FILE *f;
@@ -157,7 +173,7 @@ int config_parse(const char *filename, const ConfigItem *t, void *userdata) {
 
         if (!(f = fopen(filename, "re"))) {
                 r = -errno;
-                fprintf(stderr, "Failed to open configuration file '%s': %s", filename, strerror(-r));
+                fprintf(stderr, "Failed to open configuration file '%s': %s\n", filename, strerror(-r));
                 goto finish;
         }
 
@@ -169,11 +185,11 @@ int config_parse(const char *filename, const ConfigItem *t, void *userdata) {
                                 break;
 
                         r = -errno;
-                        fprintf(stderr, "Failed to read configuration file '%s': %s", filename, strerror(-r));
+                        fprintf(stderr, "Failed to read configuration file '%s': %s\n", filename, strerror(-r));
                         goto finish;
                 }
 
-                if ((r = parse_line(filename, ++line, &section, t, l, userdata)) < 0)
+                if ((r = parse_line(filename, ++line, &section, sections, t, l, userdata)) < 0)
                         goto finish;
         }
 
@@ -206,7 +222,7 @@ int config_parse_int(
         assert(data);
 
         if ((r = safe_atoi(rvalue, i)) < 0) {
-                fprintf(stderr, "[%s:%u] Failed to parse numeric value: %s", filename, line, rvalue);
+                fprintf(stderr, "[%s:%u] Failed to parse numeric value: %s\n", filename, line, rvalue);
                 return r;
         }
 
@@ -231,7 +247,7 @@ int config_parse_unsigned(
         assert(data);
 
         if ((r = safe_atou(rvalue, u)) < 0) {
-                fprintf(stderr, "[%s:%u] Failed to parse numeric value: %s", filename, line, rvalue);
+                fprintf(stderr, "[%s:%u] Failed to parse numeric value: %s\n", filename, line, rvalue);
                 return r;
         }
 
@@ -257,7 +273,7 @@ int config_parse_size(
         assert(data);
 
         if ((r = safe_atou(rvalue, &u)) < 0) {
-                fprintf(stderr, "[%s:%u] Failed to parse numeric value: %s", filename, line, rvalue);
+                fprintf(stderr, "[%s:%u] Failed to parse numeric value: %s\n", filename, line, rvalue);
                 return r;
         }
 
@@ -283,7 +299,7 @@ int config_parse_bool(
         assert(data);
 
         if ((k = parse_boolean(rvalue)) < 0) {
-                fprintf(stderr, "[%s:%u] Failed to parse boolean value: %s", filename, line, rvalue);
+                fprintf(stderr, "[%s:%u] Failed to parse boolean value: %s\n", filename, line, rvalue);
                 return k;
         }
 
@@ -319,3 +335,51 @@ int config_parse_string(
 
         return 0;
 }
+
+
+int config_parse_strv(
+                const char *filename,
+                unsigned line,
+                const char *section,
+                const char *lvalue,
+                const char *rvalue,
+                void *data,
+                void *userdata) {
+
+        char*** sv = data;
+        char **n;
+        char *w;
+        unsigned k;
+        size_t l;
+        char *state;
+
+        assert(filename);
+        assert(lvalue);
+        assert(rvalue);
+        assert(data);
+
+        k = strv_length(*sv);
+        FOREACH_WORD(w, &l, rvalue, state)
+                k++;
+
+        if (!(n = new(char*, k+1)))
+                return -ENOMEM;
+
+        for (k = 0; (*sv)[k]; k++)
+                n[k] = (*sv)[k];
+        FOREACH_WORD(w, &l, rvalue, state)
+                if (!(n[k++] = strndup(w, l)))
+                        goto fail;
+
+        n[k] = NULL;
+        free(*sv);
+        *sv = n;
+
+        return 0;
+
+fail:
+        for (; k > 0; k--)
+                free(n[k-1]);
+
+        return -ENOMEM;
+}