From ae23e86114f559ce6d01a3e2499fc5417dc90d37 Mon Sep 17 00:00:00 2001 From: Phil Jones Date: Sat, 6 Nov 2021 18:44:27 +0000 Subject: Start conversion to tofi. --- src/compgen.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 src/compgen.c (limited to 'src/compgen.c') diff --git a/src/compgen.c b/src/compgen.c new file mode 100644 index 0000000..e04e0a5 --- /dev/null +++ b/src/compgen.c @@ -0,0 +1,50 @@ +#include +#include +#include +#include +#include "log.h" +#include "string_vec.h" + +struct string_vec compgen() +{ + log_debug("Retrieving PATH.\n"); + const char *env_path = getenv("PATH"); + if (env_path == NULL) { + log_error("Couldn't retrieve PATH from environment."); + exit(EXIT_FAILURE); + } + struct string_vec programs = string_vec_create(); + char *path = strdup(env_path); + char *saveptr = NULL; + char *path_entry = strtok_r(path, ":", &saveptr); + log_debug("Scanning PATH for binaries.\n"); + while (path_entry != NULL) { + DIR *dir = opendir(path_entry); + if (dir != NULL) { + int fd = dirfd(dir); + struct dirent *d; + while ((d = readdir(dir)) != NULL) { + struct stat sb; + if (fstatat(fd, d->d_name, &sb, 0) == -1) { + continue; + } + if (!(sb.st_mode & S_IXUSR)) { + continue; + } + if (!S_ISREG(sb.st_mode)) { + continue; + } + string_vec_add(&programs, d->d_name); + } + closedir(dir); + } + path_entry = strtok_r(NULL, ":", &saveptr); + } + free(path); + log_debug("Sorting results.\n"); + string_vec_sort(&programs); + log_debug("Making unique.\n"); + string_vec_uniq(&programs); + log_debug("Done.\n"); + return programs; +} -- cgit v1.2.3