From 82919e3d3172c85acb80b0e206ae1731863eee6d Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Fri, 12 Feb 2010 02:00:49 +0100 Subject: [PATCH] util: add api for iterating through components of a path string --- util.c | 16 ++++++++++++++++ util.h | 4 ++++ 2 files changed, 20 insertions(+) diff --git a/util.c b/util.c index bf746958..c5c8bd4e 100644 --- a/util.c +++ b/util.c @@ -284,6 +284,22 @@ char *split_spaces(const char *c, size_t *l, char **state) { return (char*) current; } +/* Split a path into filenames. */ +char *split_slash(const char *c, size_t *l, char **state) { + char *current; + + current = *state ? *state : (char*) c; + + if (!*current || *c == 0) + return NULL; + + current += strspn(current, "/"); + *l = strcspn(current, "/"); + *state = current+*l; + + return (char*) current; +} + /* Split a string into words, but consider strings enclosed in '' and * "" as words even if they include spaces. */ char *split_quoted(const char *c, size_t *l, char **state) { diff --git a/util.h b/util.h index 8c9dea80..f5cb1655 100644 --- a/util.h +++ b/util.h @@ -97,6 +97,7 @@ int safe_atolli(const char *s, long long int *ret_i); char *split_spaces(const char *c, size_t *l, char **state); char *split_quoted(const char *c, size_t *l, char **state); +char *split_slash(const char *c, size_t *l, char **state); #define FOREACH_WORD(word, length, s, state) \ for ((state) = NULL, (word) = split_spaces((s), &(l), &(state)); (word); (word) = split_spaces((s), &(l), &(state))) @@ -104,6 +105,9 @@ char *split_quoted(const char *c, size_t *l, char **state); #define FOREACH_WORD_QUOTED(word, length, s, state) \ for ((state) = NULL, (word) = split_quoted((s), &(l), &(state)); (word); (word) = split_quoted((s), &(l), &(state))) +#define FOREACH_WORD_SLASH(word, length, s, state) \ + for ((state) = NULL, (word) = split_slash((s), &(l), &(state)); (word); (word) = split_slash((s), &(l), &(state))) + pid_t get_parent_of_pid(pid_t pid, pid_t *ppid); int write_one_line_file(const char *fn, const char *line); -- 2.39.5