diff options
Diffstat (limited to 'src/util/ss/help.c')
-rw-r--r-- | src/util/ss/help.c | 173 |
1 files changed, 87 insertions, 86 deletions
diff --git a/src/util/ss/help.c b/src/util/ss/help.c index 981a75fabd..4463ad45f1 100644 --- a/src/util/ss/help.c +++ b/src/util/ss/help.c @@ -1,3 +1,4 @@ +/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */ /* * Copyright 1987, 1988 by MIT Student Information Processing Board * @@ -8,7 +9,7 @@ #include <sys/types.h> #include <errno.h> #include <sys/file.h> -#include <fcntl.h> /* just for O_* */ +#include <fcntl.h> /* just for O_* */ #include <sys/wait.h> #include "ss_internal.h" #include "copyright.h" @@ -29,66 +30,66 @@ void ss_help (argc, argv, sci_idx, info_ptr) request_name = ss_current_request(sci_idx, &code); if (code != 0) { - ss_perror(sci_idx, code, ""); - return; /* no ss_abort_line, if invalid invocation */ + ss_perror(sci_idx, code, ""); + return; /* no ss_abort_line, if invalid invocation */ } if (argc == 1) { - ss_list_requests(argc, argv, sci_idx, info_ptr); - return; + ss_list_requests(argc, argv, sci_idx, info_ptr); + return; } else if (argc != 2) { - /* should do something better than this */ - snprintf(buffer, sizeof(buffer), - "usage:\n\t%s [topic|command]\nor\t%s\n", - request_name, request_name); - ss_perror(sci_idx, 0, buffer); - return; + /* should do something better than this */ + snprintf(buffer, sizeof(buffer), + "usage:\n\t%s [topic|command]\nor\t%s\n", + request_name, request_name); + ss_perror(sci_idx, 0, buffer); + return; } info = ss_info(sci_idx); if (info->info_dirs == (char **)NULL) { - ss_perror(sci_idx, SS_ET_NO_INFO_DIR, (char *)NULL); - return; + ss_perror(sci_idx, SS_ET_NO_INFO_DIR, (char *)NULL); + return; } if (info->info_dirs[0] == (char *)NULL) { - ss_perror(sci_idx, SS_ET_NO_INFO_DIR, (char *)NULL); - return; + ss_perror(sci_idx, SS_ET_NO_INFO_DIR, (char *)NULL); + return; } for (idx = 0; info->info_dirs[idx] != (char *)NULL; idx++) { - (void) strncpy(buffer, info->info_dirs[idx], sizeof(buffer) - 1); - buffer[sizeof(buffer) - 1] = '\0'; - (void) strncat(buffer, "/", sizeof(buffer) - 1 - strlen(buffer)); - (void) strncat(buffer, argv[1], sizeof(buffer) - 1 - strlen(buffer)); - (void) strncat(buffer, ".info", sizeof(buffer) - 1 - strlen(buffer)); - if ((fd = open(&buffer[0], O_RDONLY)) >= 0) goto got_it; + (void) strncpy(buffer, info->info_dirs[idx], sizeof(buffer) - 1); + buffer[sizeof(buffer) - 1] = '\0'; + (void) strncat(buffer, "/", sizeof(buffer) - 1 - strlen(buffer)); + (void) strncat(buffer, argv[1], sizeof(buffer) - 1 - strlen(buffer)); + (void) strncat(buffer, ".info", sizeof(buffer) - 1 - strlen(buffer)); + if ((fd = open(&buffer[0], O_RDONLY)) >= 0) goto got_it; } if ((fd = open(&buffer[0], O_RDONLY)) < 0) { - char buf[MAXPATHLEN]; - strncpy(buf, "No info found for ", sizeof(buf) - 1); - buf[sizeof(buf) - 1] = '\0'; - strncat(buf, argv[1], sizeof(buf) - 1 - strlen(buf)); - ss_perror(sci_idx, 0, buf); - return; + char buf[MAXPATHLEN]; + strncpy(buf, "No info found for ", sizeof(buf) - 1); + buf[sizeof(buf) - 1] = '\0'; + strncat(buf, argv[1], sizeof(buf) - 1 - strlen(buf)); + ss_perror(sci_idx, 0, buf); + return; } got_it: switch (child = fork()) { case -1: - ss_perror(sci_idx, errno, "Can't fork for pager"); - close(fd); - return; + ss_perror(sci_idx, errno, "Can't fork for pager"); + close(fd); + return; case 0: - (void) dup2(fd, 0); /* put file on stdin */ - ss_page_stdin(); + (void) dup2(fd, 0); /* put file on stdin */ + ss_page_stdin(); default: - (void) close(fd); /* what can we do if it fails? */ + (void) close(fd); /* what can we do if it fails? */ #ifdef WAIT_USES_INT - while (wait((int *)NULL) != child) { + while (wait((int *)NULL) != child) { #else - while (wait((union wait *)NULL) != child) { + while (wait((union wait *)NULL) != child) { #endif - /* do nothing if wrong pid */ - }; + /* do nothing if wrong pid */ + }; + } } -} #ifndef USE_DIRENT_H #include <sys/dir.h> @@ -96,60 +97,60 @@ got_it: #include <dirent.h> #endif -void ss_add_info_dir(sci_idx, info_dir, code_ptr) - int sci_idx; + void ss_add_info_dir(sci_idx, info_dir, code_ptr) + int sci_idx; char *info_dir; int *code_ptr; -{ - register ss_data *info; - DIR *d; - int n_dirs; - register char **dirs; + { + register ss_data *info; + DIR *d; + int n_dirs; + register char **dirs; - info = ss_info(sci_idx); - if ((info_dir == NULL) || (*info_dir == '\0')) { - *code_ptr = SS_ET_NO_INFO_DIR; - return; + info = ss_info(sci_idx); + if ((info_dir == NULL) || (*info_dir == '\0')) { + *code_ptr = SS_ET_NO_INFO_DIR; + return; + } + if ((d = opendir(info_dir)) == (DIR *)NULL) { + *code_ptr = errno; + return; + } + closedir(d); + dirs = info->info_dirs; + for (n_dirs = 0; dirs[n_dirs] != (char *)NULL; n_dirs++) + ; /* get number of non-NULL dir entries */ + dirs = (char **)realloc((char *)dirs, + (unsigned)(n_dirs + 2)*sizeof(char *)); + if (dirs == (char **)NULL) { + info->info_dirs = (char **)NULL; + *code_ptr = errno; + return; + } + info->info_dirs = dirs; + dirs[n_dirs + 1] = (char *)NULL; + dirs[n_dirs] = strdup(info_dir); + *code_ptr = 0; } - if ((d = opendir(info_dir)) == (DIR *)NULL) { - *code_ptr = errno; - return; - } - closedir(d); - dirs = info->info_dirs; - for (n_dirs = 0; dirs[n_dirs] != (char *)NULL; n_dirs++) - ; /* get number of non-NULL dir entries */ - dirs = (char **)realloc((char *)dirs, - (unsigned)(n_dirs + 2)*sizeof(char *)); - if (dirs == (char **)NULL) { - info->info_dirs = (char **)NULL; - *code_ptr = errno; - return; - } - info->info_dirs = dirs; - dirs[n_dirs + 1] = (char *)NULL; - dirs[n_dirs] = strdup(info_dir); - *code_ptr = 0; -} -void ss_delete_info_dir(sci_idx, info_dir, code_ptr) - int sci_idx; + void ss_delete_info_dir(sci_idx, info_dir, code_ptr) + int sci_idx; char *info_dir; int *code_ptr; -{ - register char **i_d; - register char **info_dirs; + { + register char **i_d; + register char **info_dirs; - info_dirs = ss_info(sci_idx)->info_dirs; - for (i_d = info_dirs; *i_d; i_d++) { - if (!strcmp(*i_d, info_dir)) { - while (*i_d) { - *i_d = *(i_d+1); - i_d++; - } - *code_ptr = 0; - return; - } + info_dirs = ss_info(sci_idx)->info_dirs; + for (i_d = info_dirs; *i_d; i_d++) { + if (!strcmp(*i_d, info_dir)) { + while (*i_d) { + *i_d = *(i_d+1); + i_d++; + } + *code_ptr = 0; + return; + } + } + *code_ptr = SS_ET_NO_INFO_DIR; } - *code_ptr = SS_ET_NO_INFO_DIR; -} |