diff options
51 files changed, 165 insertions, 151 deletions
diff --git a/archival/libarchive/get_header_cpio.c b/archival/libarchive/get_header_cpio.c index 1a0058b..7861d1f 100644 --- a/archival/libarchive/get_header_cpio.c +++ b/archival/libarchive/get_header_cpio.c @@ -37,7 +37,7 @@ char FAST_FUNC get_header_cpio(archive_handle_t *archive_handle) } archive_handle->offset += 110; - if (strncmp(&cpio_header[0], "07070", 5) != 0 + if (!is_prefixed_with(&cpio_header[0], "07070") || (cpio_header[5] != '1' && cpio_header[5] != '2') ) { bb_error_msg_and_die("unsupported cpio format, use newc or crc"); diff --git a/archival/libarchive/get_header_tar.c b/archival/libarchive/get_header_tar.c index 0c663fb..2dbcdb5 100644 --- a/archival/libarchive/get_header_tar.c +++ b/archival/libarchive/get_header_tar.c @@ -105,7 +105,7 @@ static void process_pax_hdr(archive_handle_t *archive_handle, unsigned sz, int g value = end + 1; #if ENABLE_FEATURE_TAR_GNU_EXTENSIONS - if (!global && strncmp(value, "path=", sizeof("path=") - 1) == 0) { + if (!global && is_prefixed_with(value, "path=")) { value += sizeof("path=") - 1; free(archive_handle->tar__longname); archive_handle->tar__longname = xstrdup(value); @@ -118,7 +118,7 @@ static void process_pax_hdr(archive_handle_t *archive_handle, unsigned sz, int g * This is what Red Hat's patched version of tar uses. */ # define SELINUX_CONTEXT_KEYWORD "RHT.security.selinux" - if (strncmp(value, SELINUX_CONTEXT_KEYWORD"=", sizeof(SELINUX_CONTEXT_KEYWORD"=") - 1) == 0) { + if (is_prefixed_with(value, SELINUX_CONTEXT_KEYWORD"=")) { value += sizeof(SELINUX_CONTEXT_KEYWORD"=") - 1; free(archive_handle->tar__sctx[global]); archive_handle->tar__sctx[global] = xstrdup(value); @@ -202,7 +202,7 @@ char FAST_FUNC get_header_tar(archive_handle_t *archive_handle) /* Check header has valid magic, "ustar" is for the proper tar, * five NULs are for the old tar format */ - if (strncmp(tar.magic, "ustar", 5) != 0 + if (!is_prefixed_with(tar.magic, "ustar") && (!ENABLE_FEATURE_TAR_OLDGNU_COMPATIBILITY || memcmp(tar.magic, "\0\0\0\0", 5) != 0) ) { diff --git a/archival/libarchive/unpack_ar_archive.c b/archival/libarchive/unpack_ar_archive.c index 214d17e..0bc0303 100644 --- a/archival/libarchive/unpack_ar_archive.c +++ b/archival/libarchive/unpack_ar_archive.c @@ -12,7 +12,7 @@ void FAST_FUNC unpack_ar_archive(archive_handle_t *ar_archive) char magic[7]; xread(ar_archive->src_fd, magic, AR_MAGIC_LEN); - if (strncmp(magic, AR_MAGIC, AR_MAGIC_LEN) != 0) { + if (!is_prefixed_with(magic, AR_MAGIC)) { bb_error_msg_and_die("invalid ar magic"); } ar_archive->offset += AR_MAGIC_LEN; diff --git a/archival/libarchive/unsafe_prefix.c b/archival/libarchive/unsafe_prefix.c index 826c673..9994f4d 100644 --- a/archival/libarchive/unsafe_prefix.c +++ b/archival/libarchive/unsafe_prefix.c @@ -15,7 +15,7 @@ const char* FAST_FUNC strip_unsafe_prefix(const char *str) cp++; continue; } - if (strncmp(cp, "/../"+1, 3) == 0) { + if (is_prefixed_with(cp, "/../"+1)) { cp += 3; continue; } diff --git a/console-tools/loadkmap.c b/console-tools/loadkmap.c index 6dcf813..f525ee5 100644 --- a/console-tools/loadkmap.c +++ b/console-tools/loadkmap.c @@ -57,7 +57,7 @@ int loadkmap_main(int argc UNUSED_PARAM, char **argv) */ xread(STDIN_FILENO, flags, 7); - if (strncmp(flags, BINARY_KEYMAP_MAGIC, 7)) + if (!is_prefixed_with(flags, BINARY_KEYMAP_MAGIC)) bb_error_msg_and_die("not a valid binary keymap"); xread(STDIN_FILENO, flags, MAX_NR_KEYMAPS); diff --git a/coreutils/date.c b/coreutils/date.c index 767e0d4..7965775 100644 --- a/coreutils/date.c +++ b/coreutils/date.c @@ -373,7 +373,7 @@ int date_main(int argc UNUSED_PARAM, char **argv) date_buf[0] = '\0'; } else { /* Handle special conversions */ - if (strncmp(fmt_dt2str, "%f", 2) == 0) { + if (is_prefixed_with(fmt_dt2str, "%f")) { fmt_dt2str = (char*)"%Y.%m.%d-%H:%M:%S"; } /* Generate output string */ diff --git a/coreutils/uudecode.c b/coreutils/uudecode.c index b298fcb..3f12273 100644 --- a/coreutils/uudecode.c +++ b/coreutils/uudecode.c @@ -110,10 +110,10 @@ int uudecode_main(int argc UNUSED_PARAM, char **argv) FILE *dst_stream; int mode; - if (strncmp(line, "begin-base64 ", 13) == 0) { + if (is_prefixed_with(line, "begin-base64 ")) { line_ptr = line + 13; decode_fn_ptr = read_base64; - } else if (strncmp(line, "begin ", 6) == 0) { + } else if (is_prefixed_with(line, "begin ")) { line_ptr = line + 6; decode_fn_ptr = read_stduu; } else { diff --git a/e2fsprogs/fsck.c b/e2fsprogs/fsck.c index d32f396..d2d312e 100644 --- a/e2fsprogs/fsck.c +++ b/e2fsprogs/fsck.c @@ -199,7 +199,7 @@ static char *base_device(const char *device) } /* Handle DAC 960 devices */ - if (strncmp(cp, "rd/", 3) == 0) { + if (is_prefixed_with(cp, "rd/")) { cp += 3; if (cp[0] != 'c' || !isdigit(cp[1]) || cp[2] != 'd' || !isdigit(cp[3])) @@ -224,9 +224,9 @@ static char *base_device(const char *device) #if ENABLE_FEATURE_DEVFS /* Now let's handle devfs (ugh) names */ len = 0; - if (strncmp(cp, "ide/", 4) == 0) + if (is_prefixed_with(cp, "ide/")) len = 4; - if (strncmp(cp, "scsi/", 5) == 0) + if (is_prefixed_with(cp, "scsi/")) len = 5; if (len) { cp += len; @@ -237,38 +237,38 @@ static char *base_device(const char *device) * some number of digits at each level, abort. */ for (hier = devfs_hier; *hier; hier++) { - len = strlen(*hier); - if (strncmp(cp, *hier, len) != 0) + cp = is_prefixed_with(cp, *hier); + if (!cp) goto errout; - cp += len; - while (*cp != '/' && *cp != 0) { + while (*cp != '/' && *cp != '\0') { if (!isdigit(*cp)) goto errout; cp++; } +//FIXME: what if *cp = '\0' now? cp++ moves past it!!! cp++; } - cp[-1] = 0; + cp[-1] = '\0'; return str; } /* Now handle devfs /dev/disc or /dev/disk names */ - disk = 0; - if (strncmp(cp, "discs/", 6) == 0) + disk = NULL; + if (is_prefixed_with(cp, "discs/")) disk = "disc"; - else if (strncmp(cp, "disks/", 6) == 0) + else if (is_prefixed_with(cp, "disks/")) disk = "disk"; if (disk) { cp += 6; - if (strncmp(cp, disk, 4) != 0) + cp = is_prefixed_with(cp, disk); + if (!cp) goto errout; - cp += 4; - while (*cp != '/' && *cp != 0) { + while (*cp != '/' && *cp != '\0') { if (!isdigit(*cp)) goto errout; cp++; } - *cp = 0; + *cp = '\0'; return str; } #endif @@ -593,8 +593,8 @@ static void fsck_device(struct fs_info *fs /*, int interactive */) type, "from fstab"); } else if (fstype && (fstype[0] != 'n' || fstype[1] != 'o') /* != "no" */ - && strncmp(fstype, "opts=", 5) != 0 - && strncmp(fstype, "loop", 4) != 0 + && !is_prefixed_with(fstype, "opts=") + && !is_prefixed_with(fstype, "loop") && !strchr(fstype, ',') ) { type = fstype; @@ -627,8 +627,8 @@ static int device_already_active(char *device) #ifdef BASE_MD /* Don't check a soft raid disk with any other disk */ if (instance_list - && (!strncmp(instance_list->device, BASE_MD, sizeof(BASE_MD)-1) - || !strncmp(device, BASE_MD, sizeof(BASE_MD)-1)) + && (is_prefixed_with(instance_list->device, BASE_MD) + || is_prefixed_with(device, BASE_MD)) ) { return 1; } @@ -895,7 +895,7 @@ static void compile_fs_type(char *fs_type) if (strcmp(s, "loop") == 0) /* loop is really short-hand for opts=loop */ goto loop_special_case; - if (strncmp(s, "opts=", 5) == 0) { + if (is_prefixed_with(s, "opts=")) { s += 5; loop_special_case: fs_type_flag[num] = negate ? FS_TYPE_FLAG_NEGOPT : FS_TYPE_FLAG_OPT; diff --git a/editors/patch.c b/editors/patch.c index f860675..cb25e41 100644 --- a/editors/patch.c +++ b/editors/patch.c @@ -414,7 +414,7 @@ int patch_main(int argc UNUSED_PARAM, char **argv) } // Open a new file? - if (!strncmp("--- ", patchline, 4) || !strncmp("+++ ", patchline, 4)) { + if (is_prefixed_with(patchline, "--- ") || is_prefixed_with(patchline, "+++ ")) { char *s, **name = reverse ? &newname : &oldname; int i; @@ -446,7 +446,7 @@ int patch_main(int argc UNUSED_PARAM, char **argv) // Start a new hunk? Usually @@ -oldline,oldlen +newline,newlen @@ // but a missing ,value means the value is 1. - } else if (state == 1 && !strncmp("@@ -", patchline, 4)) { + } else if (state == 1 && is_prefixed_with(patchline, "@@ -")) { int i; char *s = patchline+4; diff --git a/include/libbb.h b/include/libbb.h index be792d6..c97df60 100644 --- a/include/libbb.h +++ b/include/libbb.h @@ -389,6 +389,7 @@ const char *bb_basename(const char *name) FAST_FUNC; /* NB: can violate const-ness (similarly to strchr) */ char *last_char_is(const char *s, int c) FAST_FUNC; const char* endofname(const char *name) FAST_FUNC; +char *is_prefixed_with(const char *string, const char *key) FAST_FUNC; int ndelay_on(int fd) FAST_FUNC; int ndelay_off(int fd) FAST_FUNC; diff --git a/libbb/appletlib.c b/libbb/appletlib.c index 54300bd..8fd8fd5 100644 --- a/libbb/appletlib.c +++ b/libbb/appletlib.c @@ -193,7 +193,7 @@ void lbb_prepare(const char *applet if (argv[1] && !argv[2] && strcmp(argv[1], "--help") == 0 - && strncmp(applet, "busybox", 7) != 0 + && !is_prefixed_with(applet, "busybox") ) { /* Special case. POSIX says "test --help" * should be no different from e.g. "test --foo". */ @@ -673,7 +673,7 @@ static int busybox_main(char **argv) return 0; } - if (strncmp(argv[1], "--list", 6) == 0) { + if (is_prefixed_with(argv[1], "--list")) { unsigned i = 0; const char *a = applet_names; dup2(1, 2); @@ -778,7 +778,7 @@ void FAST_FUNC run_applet_and_exit(const char *name, char **argv) int applet = find_applet_by_name(name); if (applet >= 0) run_applet_no_and_exit(applet, argv); - if (strncmp(name, "busybox", 7) == 0) + if (is_prefixed_with(name, "busybox")) exit(busybox_main(argv)); } @@ -817,7 +817,7 @@ int main(int argc UNUSED_PARAM, char **argv) #if defined(SINGLE_APPLET_MAIN) /* Only one applet is selected in .config */ - if (argv[1] && strncmp(argv[0], "busybox", 7) == 0) { + if (argv[1] && is_prefixed_with(argv[0], "busybox")) { /* "busybox <applet> <params>" should still work as expected */ argv++; } diff --git a/libbb/compare_string_array.c b/libbb/compare_string_array.c index 4b10cc1..e24815a 100644 --- a/libbb/compare_string_array.c +++ b/libbb/compare_string_array.c @@ -5,6 +5,24 @@ #include "libbb.h" +char* FAST_FUNC is_prefixed_with(const char *string, const char *key) +{ +#if 0 /* Two passes over key - probably slower */ + int len = strlen(key); + if (strncmp(string, key, len) == 0) + return string + len; + return NULL; +#else /* Open-coded */ + while (*key != '\0') { + if (*key != *string) + return NULL; + key++; + string++; + } + return (char*)string; +#endif +} + /* returns the array index of the string */ /* (index of first match is returned, or -1) */ int FAST_FUNC index_in_str_array(const char *const string_array[], const char *key) @@ -39,10 +57,9 @@ int FAST_FUNC index_in_strings(const char *strings, const char *key) int FAST_FUNC index_in_substr_array(const char *const string_array[], const char *key) { int i; - int len = strlen(key); - if (len) { + if (key[0]) { for (i = 0; string_array[i] != 0; i++) { - if (strncmp(string_array[i], key, len) == 0) { + if (is_prefixed_with(string_array[i], key)) { return i; } } diff --git a/libbb/lineedit.c b/libbb/lineedit.c index 249b401..a83e07c 100644 --- a/libbb/lineedit.c +++ b/libbb/lineedit.c @@ -681,7 +681,7 @@ static NOINLINE unsigned complete_username(const char *ud) setpwent(); while ((pw = getpwent()) != NULL) { /* Null usernames should result in all users as possible completions. */ - if (/*!userlen || */ strncmp(ud, pw->pw_name, userlen) == 0) { + if (/* !ud[0] || */ is_prefixed_with(pw->pw_name, ud)) { add_match(xasprintf("~%s/", pw->pw_name)); } } @@ -792,7 +792,7 @@ static NOINLINE unsigned complete_cmd_dir_file(const char *command, int type) if (!pfind[0] && DOT_OR_DOTDOT(name_found)) continue; /* match? */ - if (strncmp(name_found, pfind, pf_len) != 0) + if (!is_prefixed_with(name_found, pfind)) continue; /* no */ found = concat_path_file(paths[i], name_found); @@ -1879,15 +1879,16 @@ static void parse_and_put_prompt(const char *prmt_ptr) cwd_buf = xrealloc_getcwd_or_warn(NULL); if (!cwd_buf) cwd_buf = (char *)bb_msg_unknown; - else { + else if (home_pwd_buf[0]) { + char *after_home_user; + /* /home/user[/something] -> ~[/something] */ - l = strlen(home_pwd_buf); - if (l != 0 - && strncmp(home_pwd_buf, cwd_buf, l) == 0 - && (cwd_buf[l] == '/' || cwd_buf[l] == '\0') + after_home_user = is_prefixed_with(cwd_buf, home_pwd_buf); + if (after_home_user + && (*after_home_user == '/' || *after_home_user == '\0') ) { cwd_buf[0] = '~'; - overlapping_strcpy(cwd_buf + 1, cwd_buf + l); + overlapping_strcpy(cwd_buf + 1, after_home_user); } } } diff --git a/libbb/match_fstype.c b/libbb/match_fstype.c index 32c3d7f..b066b42 100644 --- a/libbb/match_fstype.c +++ b/libbb/match_fstype.c @@ -17,7 +17,6 @@ int FAST_FUNC match_fstype(const struct mntent *mt, const char *t_fstype) { int match = 1; - int len; if (!t_fstype) return match; @@ -27,10 +26,10 @@ int FAST_FUNC match_fstype(const struct mntent *mt, const char *t_fstype) t_fstype += 2; } - len = strlen(mt->mnt_type); while (1) { - if (strncmp(mt->mnt_type, t_fstype, len) == 0 - && (t_fstype[len] == '\0' || t_fstype[len] == ',') + char *after_mnt_type = is_prefixed_with(t_fstype, mt->mnt_type); + if (after_mnt_type + && (*after_mnt_type == '\0' || *after_mnt_type == ',') ) { return match; } diff --git a/libbb/procps.c b/libbb/procps.c index 5b68d34..948b91e 100644 --- a/libbb/procps.c +++ b/libbb/procps.c @@ -205,11 +205,11 @@ int FAST_FUNC procps_read_smaps(pid_t pid, struct smaprec *total, // Rss: nnn kB // ..... - char *tp = buf, *p; + char *tp, *p; #define SCAN(S, X) \ - if (strncmp(tp, S, sizeof(S)-1) == 0) { \ - tp = skip_whitespace(tp + sizeof(S)-1); \ + if ((tp = is_prefixed_with(buf, S)) != NULL) { \ + tp = skip_whitespace(tp); \ total->X += currec.X = fast_strtoul_10(&tp); \ continue; \ } @@ -247,7 +247,7 @@ int FAST_FUNC procps_read_smaps(pid_t pid, struct smaprec *total, // skipping "rw-s FILEOFS M:m INODE " tp = skip_whitespace(skip_fields(tp, 4)); // filter out /dev/something (something != zero) - if (strncmp(tp, "/dev/", 5) != 0 || strcmp(tp, "/dev/zero\n") == 0) { + if (!is_prefixed_with(tp, "/dev/") || strcmp(tp, "/dev/zero\n") == 0) { if (currec.smap_mode[1] == 'w') { currec.mapped_rw = currec.smap_size; total->mapped_rw += currec.smap_size; @@ -497,8 +497,8 @@ procps_status_t* FAST_FUNC procps_scan(procps_status_t* sp, int flags) while (fgets(buf, sizeof(buf), file)) { char *tp; #define SCAN_TWO(str, name, statement) \ - if (strncmp(buf, str, sizeof(str)-1) == 0) { \ - tp = skip_whitespace(buf + sizeof(str)-1); \ + if ((tp = is_prefixed_with(buf, str)) != NULL) { \ + tp = skip_whitespace(tp); \ sscanf(tp, "%u", &sp->name); \ statement; \ } diff --git a/libbb/rtc.c b/libbb/rtc.c index 6d06d57..c4117ba 100644 --- a/libbb/rtc.c +++ b/libbb/rtc.c @@ -22,7 +22,7 @@ int FAST_FUNC rtc_adjtime_is_utc(void) char buffer[128]; while (fgets(buffer, sizeof(buffer), f)) { - if (strncmp(buffer, "UTC", 3) == 0) { + if (is_prefixed_with(buffer, "UTC")) { utc = 1; break; } diff --git a/libbb/skip_whitespace.c b/libbb/skip_whitespace.c index 8c7b674..b6cfbba 100644 --- a/libbb/skip_whitespace.c +++ b/libbb/skip_whitespace.c @@ -33,7 +33,7 @@ char* FAST_FUNC skip_non_whitespace(const char *s) char* FAST_FUNC skip_dev_pfx(const char *tty_name) { - if (strncmp(tty_name, "/dev/", 5) == 0) + if (is_prefixed_with(tty_name, "/dev/")) tty_name += 5; return (char*)tty_name; } diff --git a/libbb/update_passwd.c b/libbb/update_passwd.c index dc26ebd..a2004f4 100644 --- a/libbb/update_passwd.c +++ b/libbb/update_passwd.c @@ -84,7 +84,6 @@ int FAST_FUNC update_passwd(const char *filename, char *fnamesfx; char *sfx_char; char *name_colon; - unsigned user_len; int old_fd; int new_fd; int i; @@ -108,7 +107,6 @@ int FAST_FUNC update_passwd(const char *filename, fnamesfx = xasprintf("%s+", filename); sfx_char = &fnamesfx[strlen(fnamesfx)-1]; name_colon = xasprintf("%s:", name ? name : ""); - user_len = strlen(name_colon); if (shadow) old_fp = fopen(filename, "r+"); @@ -179,7 +177,7 @@ int FAST_FUNC update_passwd(const char *filename, while (list) { list++; next_list_element: - if (strncmp(list, member, member_len) == 0) { + if (is_prefixed_with(list, member)) { char c; changed_lines++; c = list[member_len]; @@ -201,13 +199,14 @@ int FAST_FUNC update_passwd(const char *filename, goto next; } - if (strncmp(name_colon, line, user_len) != 0) { + cp = is_prefixed_with(line, name_colon); + if (!cp) { fprintf(new_fp, "%s\n", line); goto next; } /* We have a match with "name:"... */ - cp = line + user_len; /* move past name: */ + /* cp points past "name:" */ #if ENABLE_FEATURE_ADDUSER_TO_GROUP || ENABLE_FEATURE_DEL_USER_FROM_GROUP if (member) { diff --git a/libbb/xconnect.c b/libbb/xconnect.c index 1c8bb2b..2a96e03 100644 --- a/libbb/xconnect.c +++ b/libbb/xconnect.c @@ -171,7 +171,7 @@ IF_NOT_FEATURE_IPV6(sa_family_t af = AF_INET;) const char *cp; struct addrinfo hint; - if (ENABLE_FEATURE_UNIX_LOCAL && strncmp(host, "local:", 6) == 0) { + if (ENABLE_FEATURE_UNIX_LOCAL && is_prefixed_with(host, "local:")) { struct sockaddr_un *sun; r = xzalloc(LSA_LEN_SIZE + sizeof(struct sockaddr_un)); diff --git a/miscutils/crond.c b/miscutils/crond.c index 3659b9a..eb327f8 100644 --- a/miscutils/crond.c +++ b/miscutils/crond.c @@ -438,14 +438,14 @@ static void load_crontab(const char *fileName) log5("user:%s entry:%s", fileName, parser->data); /* check if line is setting MAILTO= */ - if (0 == strncmp(tokens[0], "MAILTO=", 7)) { + if (is_prefixed_with(tokens[0], "MAILTO=")) { #if ENABLE_FEATURE_CROND_CALL_SENDMAIL free(mailTo); mailTo = (tokens[0][7]) ? xstrdup(&tokens[0][7]) : NULL; #endif /* otherwise just ignore such lines */ continue; } - if (0 == strncmp(tokens[0], "SHELL=", 6)) { + if (is_prefixed_with(tokens[0], "SHELL=")) { free(shell); shell = xstrdup(&tokens[0][6]); continue; diff --git a/miscutils/dc.c b/miscutils/dc.c index a7bd360..f94d6fa 100644 --- a/miscutils/dc.c +++ b/miscutils/dc.c @@ -244,9 +244,9 @@ static void stack_machine(const char *argument) o = operators; do { - const size_t name_len = strlen(o->name); - if (strncmp(o->name, argument, name_len) == 0) { - argument += name_len; + char *after_name = is_prefixed_with(argument, o->name); + if (after_name) { + argument = after_name; o->function(); goto next; } diff --git a/miscutils/devfsd.c b/miscutils/devfsd.c index 96ffe07..5a6aec6 100644 --- a/miscutils/devfsd.c +++ b/miscutils/devfsd.c @@ -1405,7 +1405,6 @@ const char *get_old_name(const char *devname, unsigned int namelen, int indexx; const char *pty1; const char *pty2; - size_t len; /* 1 to 5 "scsi/" , 6 to 9 "ide/host", 10 sbp/, 11 vcc/, 12 pty/ */ static const char *const fmt[] = { NULL , @@ -1425,12 +1424,11 @@ const char *get_old_name(const char *devname, unsigned int namelen, }; for (trans = translate_table; trans->match != NULL; ++trans) { - len = strlen(trans->match); - - if (strncmp(devname, trans->match, len) == 0) { + char *after_match = is_prefixed_with(devname, trans->match); + if (after_match) { if (trans->format == NULL) - return devname + len; - sprintf(buffer, trans->format, devname + len); + return after_match; + sprintf(buffer, trans->format, after_match); return buffer; } } diff --git a/miscutils/fbsplash.c b/miscutils/fbsplash.c index 7b695b2..77033c2 100644 --- a/miscutils/fbsplash.c +++ b/miscutils/fbsplash.c @@ -516,7 +516,7 @@ int fbsplash_main(int argc UNUSED_PARAM, char **argv) // handle a case when we have many buffered lines // already in the pipe while ((num_buf = xmalloc_fgetline(fp)) != NULL) { - if (strncmp(num_buf, "exit", 4) == 0) { + if (is_prefixed_with(num_buf, "exit")) { DEBUG_MESSAGE("exit"); break; } diff --git a/miscutils/i2c_tools.c b/miscutils/i2c_tools.c index 90d1e1e..03bb039 100644 --- a/miscutils/i2c_tools.c +++ b/miscutils/i2c_tools.c @@ -1198,7 +1198,7 @@ static void NORETURN list_i2c_busses_and_exit(void) if (subde->d_name[0] == '.') continue; - if (strncmp(subde->d_name, "i2c-", 4) == 0) { + if (is_prefixed_with(subde->d_name, "i2c-")) { snprintf(path, NAME_MAX, "%s/%s/device/%s/name", i2cdev_path, de->d_name, @@ -1229,7 +1229,7 @@ found: if (rv != 1) continue; - if (strncmp(name, "ISA", 3) == 0) + if (is_prefixed_with(name, "ISA")) adt = ADT_ISA; else adt = i2cdetect_get_funcs(bus); diff --git a/miscutils/last.c b/miscutils/last.c index 24f6e1c..a144c7e 100644 --- a/miscutils/last.c +++ b/miscutils/last.c @@ -87,11 +87,11 @@ int last_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) if (++n > 0) ut.ut_type = n != 3 ? n : SHUTDOWN_TIME; #else - if (strncmp(ut.ut_user, "shutdown", 8) == 0) + if (is_prefixed_with(ut.ut_user, "shutdown")) ut.ut_type = SHUTDOWN_TIME; - else if (strncmp(ut.ut_user, "reboot", 6) == 0) + else if (is_prefixed_with(ut.ut_user, "reboot")) ut.ut_type = BOOT_TIME; - else if (strncmp(ut.ut_user, "runlevel", 8) == 0) + else if (is_prefixed_with(ut.ut_user, "runlevel")) ut.ut_type = RUN_LVL; #endif } else { diff --git a/miscutils/man.c b/miscutils/man.c index c39870e..58ed819 100644 --- a/miscutils/man.c +++ b/miscutils/man.c @@ -66,7 +66,7 @@ static int run_pipe(const char *pager, char *man_filename, int man, int level) goto ordinary_manpage; line = xmalloc_open_zipped_read_close(man_filename, NULL); - if (!line || strncmp(line, ".so ", 4) != 0) { + if (!line || !is_prefixed_with(line, ".so ")) { free(line); goto ordinary_manpage; } @@ -228,7 +228,7 @@ int man_main(int argc UNUSED_PARAM, char **argv) if (!token[1]) continue; if (strcmp("DEFINE", token[0]) == 0) { - if (strncmp("pager", token[1], 5) == 0) { + if (is_prefixed_with("pager", token[1])) { pager = xstrdup(skip_whitespace(token[1]) + 5); } } else diff --git a/modutils/depmod.c b/modutils/depmod.c index 37a8482..9713aef 100644 --- a/modutils/depmod.c +++ b/modutils/depmod.c @@ -55,7 +55,7 @@ static int FAST_FUNC parse_module(const char *fname, struct stat *sb UNUSED_PARA NULL ); for (ptr = image; ptr < image + len - 10; ptr++) { - if (strncmp(ptr, "depends=", 8) == 0) { + if (is_prefixed_with(ptr, "depends=")) { char *u; ptr += 8; @@ -64,15 +64,15 @@ static int FAST_FUNC parse_module(const char *fname, struct stat *sb UNUSED_PARA *u = '_'; ptr += string_to_llist(ptr, &info->dependencies, ","); } else if (ENABLE_FEATURE_MODUTILS_ALIAS - && strncmp(ptr, "alias=", 6) == 0 + && is_prefixed_with(ptr, "alias=") ) { llist_add_to(&info->aliases, xstrdup(ptr + 6)); ptr += strlen(ptr); } else if (ENABLE_FEATURE_MODUTILS_SYMBOLS - && strncmp(ptr, "__ksymtab_", 10) == 0 + && is_prefixed_with(ptr, "__ksymtab_") ) { ptr += 10; - if (strncmp(ptr, "gpl", 3) == 0 + if (is_prefixed_with(ptr, "gpl") || strcmp(ptr, "strings") == 0 ) { continue; diff --git a/modutils/modinfo.c b/modutils/modinfo.c index ee37930..8e74b64 100644 --- a/modutils/modinfo.c +++ b/modutils/modinfo.c @@ -62,7 +62,7 @@ static void modinfo(const char *path, const char *version, "firmware", }; size_t len; - int j, length; + int j; char *ptr, *the_module; const char *field = env->field; int tags = env->tags; @@ -94,16 +94,18 @@ static void modinfo(const char *path, const char *version, pattern = field; if ((1<<j) & OPT_TAGS) pattern = shortcuts[j]; - length = strlen(pattern); ptr = the_module; while (1) { + char *after_pattern; + ptr = memchr(ptr, *pattern, len - (ptr - (char*)the_module)); if (ptr == NULL) /* no occurance left, done */ break; - if (strncmp(ptr, pattern, length) == 0 && ptr[length] == '=') { + after_pattern = is_prefixed_with(ptr, pattern); + if (after_pattern && *after_pattern == '=') { /* field prefixes are 0x80 or 0x00 */ - if ((ptr[-1] & 0x7F) == '\0') { - ptr += length + 1; + if ((ptr[-1] & 0x7F) == 0x00) { + ptr = after_pattern + 1; display(ptr, pattern, (1<<j) != tags); ptr += strlen(ptr); } diff --git a/modutils/modprobe-small.c b/modutils/modprobe-small.c index ed177bb..9c94106 100644 --- a/modutils/modprobe-small.c +++ b/modutils/modprobe-small.c @@ -116,21 +116,21 @@ static char* copy_stringbuf(void) static char* find_keyword(char *ptr, size_t len, const char *word) { - int wlen; - if (!ptr) /* happens if xmalloc_open_zipped_read_close cannot read it */ return NULL; - wlen = strlen(word); - len -= wlen - 1; + len -= strlen(word) - 1; while ((ssize_t)len > 0) { char *old = ptr; + char *after_word; + /* search for the first char in word */ - ptr = memchr(ptr, *word, len); + ptr = memchr(ptr, word[0], len); if (ptr == NULL) /* no occurance left, done */ break; - if (strncmp(ptr, word, wlen) == 0) - return ptr + wlen; /* found, return ptr past it */ + after_word = is_prefixed_with(ptr, word); + if (after_word) + return after_word; /* found, return ptr past it */ ++ptr; len -= (ptr - old); } @@ -536,7 +536,7 @@ static module_info** find_alias(const char *alias) // TODO: open only once, invent config_rewind() static int already_loaded(const char *name) { - int ret, namelen; + int ret; char *line; FILE *fp; @@ -545,15 +545,16 @@ static int already_loaded(const char *name) fp = fopen_for_read("/proc/modules"); if (!fp) return 0; - namelen = strlen(name); while ((line = xmalloc_fgetline(fp)) != NULL) { char *live; + char *after_name; // Examples from kernel 3.14.6: //pcspkr 12718 0 - Live 0xffffffffa017e000 //snd_timer 28690 2 snd_seq,snd_pcm, Live 0xffffffffa025e000 //i915 801405 2 - Live 0xffffffffa0096000 - if (strncmp(line, name, namelen) != 0 || line[namelen] != ' ') { + after_name = is_prefixed_with(line, name); + if (!after_name || *after_name != ' ') { free(line); continue; } diff --git a/modutils/modprobe.c b/modutils/modprobe.c index 0e8aa9e..996de40 100644 --- a/modutils/modprobe.c +++ b/modutils/modprobe.c @@ -260,7 +260,7 @@ static void add_probe(const char *name) llist_add_to_end(&G.probes, m); G.num_unresolved_deps++; if (ENABLE_FEATURE_MODUTILS_SYMBOLS - && strncmp(m->modname, "symbol:", 7) == 0 + && is_prefixed_with(m->modname, "symbol:") ) { G.need_symbols = 1; } @@ -353,22 +353,18 @@ static char *parse_and_add_kcmdline_module_options(char *options, const char *mo char *kcmdline_buf; char *kcmdline; char *kptr; - int len; kcmdline_buf = xmalloc_open_read_close("/proc/cmdline", NULL); if (!kcmdline_buf) return options; kcmdline = kcmdline_buf; - len = strlen(modulename); while ((kptr = strsep(&kcmdline, "\n\t ")) != NULL) { - if (strncmp(modulename, kptr, len) != 0) - continue; - kptr += len; - if (*kptr != '.') + char *after_modulename = is_prefixed_with(kptr, modulename); + if (!after_modulename || *after_modulename != '.') continue; /* It is "modulename.xxxx" */ - kptr++; + kptr = after_modulename + 1; if (strchr(kptr, '=') != NULL) { /* It is "modulename.opt=[val]" */ options = gather_options_str(options, kptr); diff --git a/modutils/modutils-24.c b/modutils/modutils-24.c index 12cb75c..fe46fc3 100644 --- a/modutils/modutils-24.c +++ b/modutils/modutils-24.c @@ -2255,7 +2255,7 @@ static int add_symbols_from(struct obj_file *f, * symbols so they cannot fudge it by adding the prefix on * their references. */ - if (strncmp((char *)s->name, "GPLONLY_", 8) == 0) { + if (is_prefixed_with((char *)s->name, "GPLONLY_")) { #if ENABLE_FEATURE_CHECK_TAINTED_MODULE if (gpl) s->name += 8; diff --git a/networking/dnsd.c b/networking/dnsd.c index fe98400..923ad6b 100644 --- a/networking/dnsd.c +++ b/networking/dnsd.c @@ -194,7 +194,7 @@ static char *table_lookup(struct dns_entry *d, if ((len != 1 || d->name[1] != '*') /* we assume (do not check) that query_string * ends in ".in-addr.arpa" */ - && strncmp(d->rip, query_string, strlen(d->rip)) == 0 + && is_prefixed_with(query_string, d->rip) ) { #if DEBUG fprintf(stderr, "Found name:%s\n", d->name); diff --git a/networking/httpd.c b/networking/httpd.c index 9cf0804..7a9065f 100644 --- a/networking/httpd.c +++ b/networking/httpd.c @@ -697,7 +697,7 @@ static void parse_conf(const char *path, int flag) goto config_error; } *host_port++ = '\0'; - if (strncmp(host_port, "http://", 7) == 0) + if (is_prefixed_with(host_port, "http://")) host_port += 7; if (*host_port == '\0') { goto config_error; @@ -1894,7 +1894,7 @@ static Htaccess_Proxy *find_proxy_entry(const char *url) { Htaccess_Proxy *p; for (p = proxy; p; p = p->next) { - if (strncmp(url, p->url_from, strlen(p->url_from)) == 0) + if (is_prefixed_with(url, p->url_from)) return p; } return NULL; @@ -2183,7 +2183,7 @@ static void handle_incoming_and_exit(const len_and_sockaddr *fromAddr) if (STRNCASECMP(iobuf, "Range:") == 0) { /* We know only bytes=NNN-[MMM] */ char *s = skip_whitespace(iobuf + sizeof("Range:")-1); - if (strncmp(s, "bytes=", 6) == 0) { + if (is_prefixed_with(s, "bytes=") == 0) { s += sizeof("bytes=")-1; range_start = BB_STRTOOFF(s, &s, 10); if (s[0] != '-' || range_start < 0) { @@ -2269,7 +2269,7 @@ static void handle_incoming_and_exit(const len_and_sockaddr *fromAddr) tptr = urlcopy + 1; /* skip first '/' */ #if ENABLE_FEATURE_HTTPD_CGI - if (strncmp(tptr, "cgi-bin/", 8) == 0) { + if (is_prefixed_with(tptr, "cgi-bin/")) { if (tptr[8] == '\0') { /* protect listing "cgi-bin/" */ send_headers_and_exit(HTTP_FORBIDDEN); diff --git a/networking/ifupdown.c b/networking/ifupdown.c index c35d97a..daabeec 100644 --- a/networking/ifupdown.c +++ b/networking/ifupdown.c @@ -289,7 +289,7 @@ static char *parse(const char *command, struct interface_defn_t *ifd) /* "hwaddress <class> <address>": * unlike ifconfig, ip doesnt want <class> * (usually "ether" keyword). Skip it. */ - if (strncmp(command, "hwaddress", 9) == 0) { + if (is_prefixed_with(command, "hwaddress")) { varvalue = skip_whitespace(skip_non_whitespace(varvalue)); } # endif @@ -298,7 +298,7 @@ static char *parse(const char *command, struct interface_defn_t *ifd) # if ENABLE_FEATURE_IFUPDOWN_IP /* Sigh... Add a special case for 'ip' to convert from * dotted quad to bit count style netmasks. */ - if (strncmp(command, "bnmask", 6) == 0) { + if (is_prefixed_with(command, "bnmask")) { unsigned res; varvalue = get_var("netmask", 7, ifd); if (varvalue) { @@ -1159,12 +1159,12 @@ static char *run_mapping(char *physical, struct mapping_defn_t *map) static llist_t *find_iface_state(llist_t *state_list, const char *iface) { - unsigned iface_len = strlen(iface); llist_t *search = state_list; while (search) { - if ((strncmp(search->data, iface, iface_len) == 0) - && (search->data[iface_len] == '=') + char *after_iface = is_prefixed_with(search->data, iface); + if (after_iface + && *after_iface == '=' ) { return search; } diff --git a/networking/inetd.c b/networking/inetd.c index 8148925..dce5a08 100644 --- a/networking/inetd.c +++ b/networking/inetd.c @@ -727,7 +727,7 @@ static NOINLINE servtab_t *parse_one_line(void) goto parse_err; #endif } - if (strncmp(arg, "rpc/", 4) == 0) { + if (is_prefixed_with(arg, "rpc/")) { #if ENABLE_FEATURE_INETD_RPC unsigned n; arg += 4; diff --git a/networking/libiproute/ipaddress.c b/networking/libiproute/ipaddress.c index aa4779a..4072d06 100644 --- a/networking/libiproute/ipaddress.c +++ b/networking/libiproute/ipaddress.c @@ -701,7 +701,7 @@ static int ipaddr_modify(int cmd, char **argv) /* There was no "dev IFACE", but we need that */ bb_error_msg_and_die("need \"dev IFACE\""); } - if (l && strncmp(d, l, strlen(d)) != 0) { + if (l && !is_prefixed_with(l, d)) { bb_error_msg_and_die("\"dev\" (%s) must match \"label\" (%s)", d, l); } diff --git a/networking/nameif.c b/networking/nameif.c index 9a8846d..9b18a6d 100644 --- a/networking/nameif.c +++ b/networking/nameif.c @@ -161,19 +161,19 @@ static void nameif_parse_selector(ethtable_t *ch, char *selector) if (*next) *next++ = '\0'; /* Check for selectors, mac= is assumed */ - if (strncmp(selector, "bus=", 4) == 0) { + if (is_prefixed_with(selector, "bus=")) { ch->bus_info = xstrdup(selector + 4); found_selector++; - } else if (strncmp(selector, "driver=", 7) == 0) { + } else if (is_prefixed_with(selector, "driver=")) { ch->driver = xstrdup(selector + 7); found_selector++; - } else if (strncmp(selector, "phyaddr=", 8) == 0) { + } else if (is_prefixed_with(selector, "phyaddr=")) { ch->phy_address = xatoi_positive(selector + 8); found_selector++; } else { #endif lmac = xmalloc(ETH_ALEN); - ch->mac = ether_aton_r(selector + (strncmp(selector, "mac=", 4) != 0 ? 0 : 4), lmac); + ch->mac = ether_aton_r(selector + (is_prefixed_with(selector, "mac=") ? 4 : 0), lmac); if (ch->mac == NULL) bb_error_msg_and_die("can't parse %s", selector); #if ENABLE_FEATURE_NAMEIF_EXTENDED diff --git a/networking/netstat.c b/networking/netstat.c index f80b845..02f4cc7 100644 --- a/networking/netstat.c +++ b/networking/netstat.c @@ -228,12 +228,12 @@ static long extract_socket_inode(const char *lname) { long inode = -1; - if (strncmp(lname, "socket:[", sizeof("socket:[")-1) == 0) { + if (is_prefixed_with(lname, "socket:[")) { /* "socket:[12345]", extract the "12345" as inode */ inode = bb_strtoul(lname + sizeof("socket:[")-1, (char**)&lname, 0); if (*lname != ']') inode = -1; - } else if (strncmp(lname, "[0000]:", sizeof("[0000]:")-1) == 0) { + } else if (is_prefixed_with(lname, "[0000]:")) { /* "[0000]:12345", extract the "12345" as inode */ inode = bb_strtoul(lname + sizeof("[0000]:")-1, NULL, 0); if (errno) /* not NUL terminated? */ diff --git a/procps/mpstat.c b/procps/mpstat.c index af3263d..6028903 100644 --- a/procps/mpstat.c +++ b/procps/mpstat.c @@ -526,7 +526,7 @@ static void get_irqs_from_stat(struct stats_irq *irq) while (fgets(buf, sizeof(buf), fp)) { //bb_error_msg("/proc/stat:'%s'", buf); - if (strncmp(buf, "intr ", 5) == 0) { + if (is_prefixed_with(buf, "intr ")) { /* Read total number of IRQs since system boot */ sscanf(buf + 5, "%"FMT_DATA"u", &irq->irq_nr); } diff --git a/procps/powertop.c b/procps/powertop.c index ddda5bd..18affac 100644 --- a/procps/powertop.c +++ b/procps/powertop.c @@ -458,9 +458,9 @@ static NOINLINE int process_timer_stats(void) // func = "Load balancing tick"; //} - if (strncmp(func, "tick_nohz_", 10) == 0) + if (is_prefixed_with(func, "tick_nohz_")) continue; - if (strncmp(func, "tick_setup_sched_timer", 20) == 0) + if (is_prefixed_with(func, "tick_setup_sched_timer")) continue; //if (strcmp(process, "powertop") == 0) // continue; diff --git a/procps/pwdx.c b/procps/pwdx.c index 22b8922..4e34149 100644 --- a/procps/pwdx.c +++ b/procps/pwdx.c @@ -41,7 +41,7 @@ int pwdx_main(int argc UNUSED_PARAM, char **argv) // Allowed on the command line: // /proc/NUM // NUM - if (strncmp(arg, "/proc/", 6) == 0) + if (is_prefixed_with(arg, "/proc/")) arg += 6; pid = bb_strtou(arg, NULL, 10); diff --git a/shell/hush.c b/shell/hush.c index 92d7901..f2c0a70 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -5884,7 +5884,7 @@ static FILE *generate_stream_from_string(const char *s, pid_t *pid_p) * Our solution: ONLY bare $(trap) or `trap` is special. */ s = skip_whitespace(s); - if (strncmp(s, "trap", 4) == 0 + if (is_prefixed_with(s, "trap") && skip_whitespace(s + 4)[0] == '\0' ) { static const char *const argv[] = { NULL, NULL }; diff --git a/util-linux/acpid.c b/util-linux/acpid.c index fc8151f..0f2cb6b 100644 --- a/util-linux/acpid.c +++ b/util-linux/acpid.c @@ -151,7 +151,7 @@ static const char *find_action(struct input_event *ev, const char *buf) } if (buf) { - if (strncmp(buf, evt_tab[i].desc, strlen(buf)) == 0) { + if (is_prefixed_with(evt_tab[i].desc, buf)) { action = evt_tab[i].desc; break; } diff --git a/util-linux/fdisk.c b/util-linux/fdisk.c index 39eb27b..7fe70fb 100644 --- a/util-linux/fdisk.c +++ b/util-linux/fdisk.c @@ -2781,14 +2781,14 @@ is_ide_cdrom_or_tape(const char *device) the process hangs on the attempt to read a music CD. So try to be careful. This only works since 2.1.73. */ - if (strncmp("/dev/hd", device, 7)) + if (!is_prefixed_with(device, "/dev/hd")) return 0; snprintf(buf, sizeof(buf), "/proc/ide/%s/media", device+5); procf = fopen_for_read(buf); if (procf != NULL && fgets(buf, sizeof(buf), procf)) - is_ide = (!strncmp(buf, "cdrom", 5) || - !strncmp(buf, "tape", 4)); + is_ide = (is_prefixed_with(buf, "cdrom") || + is_prefixed_with(buf, "tape")); else /* Now when this proc file does not exist, skip the device when it is read-only. */ diff --git a/util-linux/fdisk_osf.c b/util-linux/fdisk_osf.c index ff16389..af04cfc 100644 --- a/util-linux/fdisk_osf.c +++ b/util-linux/fdisk_osf.c @@ -854,7 +854,7 @@ xbsd_initlabel(struct partition *p) d->d_magic = BSD_DISKMAGIC; - if (strncmp(disk_device, "/dev/sd", 7) == 0) + if (is_prefixed_with(disk_device, "/dev/sd")) d->d_type = BSD_DTYPE_SCSI; else d->d_type = BSD_DTYPE_ST506; diff --git a/util-linux/fdisk_sgi.c b/util-linux/fdisk_sgi.c index 785fc66..23ebc56 100644 --- a/util-linux/fdisk_sgi.c +++ b/util-linux/fdisk_sgi.c @@ -440,7 +440,7 @@ sgi_write_table(void) (unsigned int*)sgilabel, sizeof(*sgilabel)) == 0); write_sector(0, sgilabel); - if (!strncmp((char*)sgilabel->directory[0].vol_file_name, "sgilabel", 8)) { + if (is_prefixed_with((char*)sgilabel->directory[0].vol_file_name, "sgilabel")) { /* * keep this habit of first writing the "sgilabel". * I never tested whether it works without (AN 981002). diff --git a/util-linux/findfs.c b/util-linux/findfs.c index 49e8979..07734f3 100644 --- a/util-linux/findfs.c +++ b/util-linux/findfs.c @@ -27,7 +27,7 @@ int findfs_main(int argc UNUSED_PARAM, char **argv) if (!dev) bb_show_usage(); - if (strncmp(dev, "/dev/", 5) == 0) { + if (is_prefixed_with(dev, "/dev/")) { /* Just pass any /dev/xxx name right through. * This might aid in some scripts being able * to call this unconditionally */ diff --git a/util-linux/mdev.c b/util-linux/mdev.c index b2d5657..ccc00d3 100644 --- a/util-linux/mdev.c +++ b/util-linux/mdev.c @@ -610,7 +610,7 @@ static void make_device(char *device_name, char *path, int operation) * We use strstr("/block/") to forestall future surprises. */ type = S_IFCHR; - if (strstr(path, "/block/") || (G.subsystem && strncmp(G.subsystem, "block", 5) == 0)) + if (strstr(path, "/block/") || (G.subsystem && is_prefixed_with(G.subsystem, "block"))) type = S_IFBLK; #if ENABLE_FEATURE_MDEV_CONF diff --git a/util-linux/mount.c b/util-linux/mount.c index fbc89c8..cb40c80 100644 --- a/util-linux/mount.c +++ b/util-linux/mount.c @@ -641,7 +641,7 @@ static llist_t *get_block_backed_filesystems(void) if (!f) continue; while ((buf = xmalloc_fgetline(f)) != NULL) { - if (strncmp(buf, "nodev", 5) == 0 && isspace(buf[5])) + if (is_prefixed_with(buf, "nodev") && isspace(buf[5])) goto next; fs = skip_whitespace(buf); if (*fs == '#' || *fs == '*' || !*fs) @@ -1364,9 +1364,9 @@ static NOINLINE int nfsmount(struct mntent *mp, unsigned long vfsflags, char *fi strcspn(opteq, " \t\n\r,")); continue; case 18: // "proto" - if (!strncmp(opteq, "tcp", 3)) + if (is_prefixed_with(opteq, "tcp")) tcp = 1; - else if (!strncmp(opteq, "udp", 3)) + else if (is_prefixed_with(opteq, "udp")) tcp = 0; else bb_error_msg("warning: unrecognized proto= option"); @@ -1459,7 +1459,7 @@ static NOINLINE int nfsmount(struct mntent *mp, unsigned long vfsflags, char *fi "rdirplus\0" "acl\0"; int val = 1; - if (!strncmp(opt, "no", 2)) { + if (is_prefixed_with(opt, "no")) { val = 0; opt += 2; } @@ -1979,7 +1979,7 @@ static int singlemount(struct mntent *mp, int ignore_busy) } // Might this be an NFS filesystem? - if ((!mp->mnt_type || strncmp(mp->mnt_type, "nfs", 3) == 0) + if ((!mp->mnt_type || is_prefixed_with(mp->mnt_type, "nfs")) && strchr(mp->mnt_fsname, ':') != NULL ) { if (!mp->mnt_type) diff --git a/util-linux/rtcwake.c b/util-linux/rtcwake.c index 53d9384..8aee0cf 100644 --- a/util-linux/rtcwake.c +++ b/util-linux/rtcwake.c @@ -66,7 +66,7 @@ static NOINLINE bool may_wakeup(const char *rtcname) return false; /* wakeup events could be disabled or not supported */ - return strncmp(buf, "enabled\n", 8) == 0; + return is_prefixed_with(buf, "enabled\n") != NULL; } static NOINLINE void setup_alarm(int fd, time_t *wakeup, time_t rtc_time) diff --git a/util-linux/volume_id/get_devname.c b/util-linux/volume_id/get_devname.c index 0c6bdfd..53bdbdf 100644 --- a/util-linux/volume_id/get_devname.c +++ b/util-linux/volume_id/get_devname.c @@ -302,9 +302,9 @@ int resolve_mount_spec(char **fsname) { char *tmp = *fsname; - if (strncmp(*fsname, "UUID=", 5) == 0) + if (is_prefixed_with(*fsname, "UUID=")) tmp = get_devname_from_uuid(*fsname + 5); - else if (strncmp(*fsname, "LABEL=", 6) == 0) + else if (is_prefixed_with(*fsname, "LABEL=") == 0) tmp = get_devname_from_label(*fsname + 6); if (tmp == *fsname) |