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autofs-5.1.3 - add function construct_argv()
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From: Ian Kent <raven@themaw.net>
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Add a function to decompose a string into a program path and an
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arguments vector ready for an execv(3) invocation.
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Signed-off-by: Ian Kent <raven@themaw.net>
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---
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CHANGELOG | 1
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include/parse_subs.h | 1
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lib/parse_subs.c | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++
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3 files changed, 82 insertions(+)
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--- autofs-5.0.7.orig/CHANGELOG
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+++ autofs-5.0.7/CHANGELOG
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@@ -280,6 +280,7 @@
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- remove path restriction of amd external mount.
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- add function umount_amd_ext_mount().
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- add function ext_mount_inuse().
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+- add function construct_argv().
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25/07/2012 autofs-5.0.7
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=======================
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--- autofs-5.0.7.orig/include/parse_subs.h
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+++ autofs-5.0.7/include/parse_subs.h
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@@ -125,6 +125,7 @@ char *sanitize_path(const char *, int, u
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char *merge_options(const char *, const char *);
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int expandamdent(const char *, char *, const struct substvar *);
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int expand_selectors(struct autofs_point *, const char *, char **, struct substvar *);
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+int construct_argv(char *, char **, char ***);
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void free_map_type_info(struct map_type_info *);
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struct map_type_info *parse_map_type_info(const char *);
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--- autofs-5.0.7.orig/lib/parse_subs.c
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+++ autofs-5.0.7/lib/parse_subs.c
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@@ -1191,6 +1191,86 @@ int expand_selectors(struct autofs_point
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return len;
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}
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+/* Get next space seperated argument, arguments containing
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+ * space characters may be single quoted.
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+ */
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+static char *next_arg(char *str, char **next)
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+{
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+ char *start;
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+ char *ptr;
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+
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+ if (!*str)
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+ return NULL;
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+
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+ start = ptr = str;
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+
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+ /* The amd map format parser should ensure there
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+ * are matching single quotes.
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+ */
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+ if (*start == 39) {
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+ start++;
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+ ptr++;
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+ while (*ptr && *ptr != 39)
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+ ptr++;
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+ } else {
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+ while (*ptr && *ptr != ' ')
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+ ptr++;
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+ }
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+
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+ if (*ptr)
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+ *ptr++ = 0;
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+ *next = ptr;
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+
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+ return start;
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+}
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+
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+/* Construct program path name plus argument array for use with
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+ * execv(3).
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+ */
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+int construct_argv(char *str, char **prog, char ***argv)
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+{
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+ char *program = NULL;
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+ char *start, *next;
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+ char **args, *arg;
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+ int argc;
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+
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+ start = str;
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+
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+ args = malloc(sizeof(char *));
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+ if (!args)
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+ return -1;
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+
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+ args[0] = NULL;
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+ argc = 0;
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+
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+ next = NULL;
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+ program = next_arg(str, &next;;
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+ if (!program) {
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+ free(args);
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+ return -1;
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+ }
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+
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+ start = next;
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+
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+ while (1) {
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+ if (!*next)
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+ break;
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+ arg = next_arg(start, &next;;
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+ if (arg) {
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+ argc++;
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+ args = add_argv(argc, args, arg);
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+ if (!args)
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+ return -1;
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+ }
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+ start = next;
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+ }
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+
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+ *prog = program;
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+ *argv = args;
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+
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+ return argc;
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+}
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+
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void free_map_type_info(struct map_type_info *info)
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{
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if (info->type)
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