1 /* $NetBSD: t_humanize_number.c,v 1.10 2019/03/11 17:45:12 kre Exp $ */ 2 3 /*- 4 * Copyright (c) 2010, 2011 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <atf-c.h> 30 31 #include <err.h> 32 #include <inttypes.h> 33 #include <stdarg.h> 34 #include <stdio.h> 35 #include <stdlib.h> 36 #include <string.h> 37 #include <util.h> 38 39 const struct hnopts { 40 size_t ho_len; 41 int64_t ho_num; 42 const char *ho_suffix; 43 int ho_scale; 44 int ho_flags; 45 int ho_retval; /* expected return value */ 46 const char *ho_retstr; /* expected string in buffer */ 47 } hnopts[] = { 48 /* 49 * Rev. 1.6 produces "10.0". 50 */ 51 { 5, 10737418236ULL * 1024, "", 52 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL, 3, "10T" }, 53 54 { 5, 10450000, "", 55 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL, 3, "10M" }, 56 { 5, 10500000, "", /* just for reference */ 57 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL, 3, "10M" }, 58 59 /* 60 * Trailing space. Rev. 1.7 produces "1 ". 61 */ 62 { 5, 1, "", 0, HN_NOSPACE, 1, "1" }, 63 64 { 5, 1, "", 0, 0, 2, "1 " }, /* just for reference */ 65 { 5, 1, "", 0, HN_B, 3, "1 B" }, /* and more ... */ 66 { 5, 1, "", 0, HN_DECIMAL, 2, "1 " }, 67 { 5, 1, "", 0, HN_NOSPACE | HN_B, 2, "1B" }, 68 { 5, 1, "", 0, HN_B | HN_DECIMAL, 3, "1 B" }, 69 { 5, 1, "", 0, HN_NOSPACE | HN_B | HN_DECIMAL, 2, "1B" }, 70 71 /* 72 * Space and HN_B. Rev. 1.7 produces "1B". 73 */ 74 { 5, 1, "", HN_AUTOSCALE, HN_B, 3, "1 B" }, 75 { 5, 1000, "", /* just for reference */ 76 HN_AUTOSCALE, HN_B, 3, "1 K" }, 77 78 /* 79 * Truncated output. Rev. 1.7 produces "1.0 K". 80 */ 81 { 6, 1000, "A", HN_AUTOSCALE, HN_DECIMAL, -1, "" }, 82 83 /* 84 * Failure case reported by Greg Troxel <gdt (at) NetBSD.org>. 85 * Rev. 1.11 incorrectly returns 5 with filling the buffer 86 * with "1000". 87 */ 88 { 5, 1048258238, "", 89 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL, 4, "1.0G" }, 90 /* Similar case it prints 1000 where it shouldn't */ 91 { 5, 1023488, "", 92 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL, 4, "1.0M" }, 93 { 5, 1023999, "", 94 HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL, 4, "1.0M" }, 95 }; 96 97 struct hnflags { 98 int hf_flags; 99 const char *hf_name; 100 }; 101 102 const struct hnflags scale_flags[] = { 103 { HN_GETSCALE, "HN_GETSCALE" }, 104 { HN_AUTOSCALE, "HN_AUTOSCALE" }, 105 }; 106 const struct hnflags normal_flags[] = { 107 { HN_DECIMAL, "HN_DECIMAL" }, 108 { HN_NOSPACE, "HN_NOSPACE" }, 109 { HN_B, "HN_B" }, 110 { HN_DIVISOR_1000, "HN_DIVISOR_1000" }, 111 }; 112 113 const char *formatflags(char *, size_t, const struct hnflags *, size_t, int); 114 void newline(void); 115 void w_printf(const char *, ...) __printflike(1, 2); 116 int main(int, char *[]); 117 118 const char * 119 formatflags(char *buf, size_t buflen, const struct hnflags *hfs, 120 size_t hfslen, int flags) 121 { 122 const struct hnflags *hf; 123 char *p = buf; 124 ssize_t len = buflen; 125 unsigned int i, found; 126 int n; 127 128 if (flags == 0) { 129 snprintf(buf, buflen, "0"); 130 return (buf); 131 } 132 for (i = found = 0; i < hfslen && flags & ~found; i++) { 133 hf = &hfs[i]; 134 if (flags & hf->hf_flags) { 135 found |= hf->hf_flags; 136 n = snprintf(p, len, "|%s", hf->hf_name); 137 if (n >= len) { 138 p = buf; 139 len = buflen; 140 /* Print `flags' as number */ 141 goto bad; 142 } 143 p += n; 144 len -= n; 145 } 146 } 147 flags &= ~found; 148 if (flags) 149 bad: 150 snprintf(p, len, "|0x%x", flags); 151 return (*buf == '|' ? buf + 1 : buf); 152 } 153 154 static int col, bol = 1; 155 void 156 newline(void) 157 { 158 159 fprintf(stderr, "\n"); 160 col = 0; 161 bol = 1; 162 } 163 164 void 165 w_printf(const char *fmt, ...) 166 { 167 char buf[80]; 168 va_list ap; 169 int n; 170 171 va_start(ap, fmt); 172 if (col >= 0) { 173 n = vsnprintf(buf, sizeof(buf), fmt, ap); 174 if (n >= (int)sizeof(buf)) { 175 col = -1; 176 goto overflow; 177 } else if (n == 0) 178 goto out; 179 180 if (!bol) { 181 if (col + n > 75) 182 fprintf(stderr, "\n "), col = 4; 183 else 184 fprintf(stderr, " "), col++; 185 } 186 fprintf(stderr, "%s", buf); 187 col += n; 188 bol = 0; 189 } else { 190 overflow: 191 vfprintf(stderr, fmt, ap); 192 } 193 out: 194 va_end(ap); 195 } 196 197 ATF_TC(humanize_number_basic); 198 ATF_TC_HEAD(humanize_number_basic, tc) 199 { 200 201 atf_tc_set_md_var(tc, "descr", "Test humanize_number(3)"); 202 } 203 204 ATF_TC_BODY(humanize_number_basic, tc) 205 { 206 char fbuf[128]; 207 const struct hnopts *ho; 208 char *buf = NULL; 209 size_t buflen = 0; 210 unsigned int i; 211 int rv = 0; 212 213 for (i = 0; i < __arraycount(hnopts); i++) { 214 ho = &hnopts[i]; 215 if (buflen < ho->ho_len) { 216 buflen = ho->ho_len; 217 buf = realloc(buf, buflen); 218 if (buf == NULL) 219 atf_tc_fail("realloc(..., %zu) failed", buflen); 220 } 221 222 rv = humanize_number(buf, ho->ho_len, ho->ho_num, 223 ho->ho_suffix, ho->ho_scale, ho->ho_flags); 224 225 if (rv == ho->ho_retval && 226 (rv == -1 || strcmp(buf, ho->ho_retstr) == 0)) 227 continue; 228 229 w_printf("humanize_number(\"%s\", %zu, %" PRId64 ",", 230 ho->ho_retstr, ho->ho_len, ho->ho_num); 231 w_printf("\"%s\",", ho->ho_suffix); 232 w_printf("%s,", formatflags(fbuf, sizeof(fbuf), scale_flags, 233 sizeof(scale_flags) / sizeof(scale_flags[0]), 234 ho->ho_scale)); 235 w_printf("%s)", formatflags(fbuf, sizeof(fbuf), normal_flags, 236 sizeof(normal_flags) / sizeof(normal_flags[0]), 237 ho->ho_flags)); 238 w_printf("= %d,", ho->ho_retval); 239 w_printf("but got"); 240 w_printf("%d/[%s]", rv, rv == -1 ? "" : buf); 241 newline(); 242 atf_tc_fail_nonfatal("Failed for table entry %d", i); 243 } 244 free(buf); 245 } 246 247 ATF_TC(humanize_number_big); 248 ATF_TC_HEAD(humanize_number_big, tc) 249 { 250 251 atf_tc_set_md_var(tc, "descr", "Test humanize " 252 "big numbers (PR lib/44097)"); 253 } 254 255 ATF_TC_BODY(humanize_number_big, tc) 256 { 257 char buf[1024]; 258 int rv; 259 260 /* 261 * Seems to work. 262 */ 263 (void)memset(buf, 0, sizeof(buf)); 264 265 rv = humanize_number(buf, 10, 10000, "", HN_AUTOSCALE, HN_NOSPACE); 266 267 ATF_REQUIRE(rv != -1); 268 ATF_CHECK_STREQ(buf, "10000"); 269 270 /* 271 * A bogus value with large number. 272 */ 273 (void)memset(buf, 0, sizeof(buf)); 274 275 rv = humanize_number(buf, 10, INT64_MAX, "", HN_AUTOSCALE, HN_NOSPACE); 276 277 ATF_REQUIRE(rv != -1); 278 ATF_REQUIRE(strcmp(buf, "0") != 0); 279 280 /* 281 * Large buffer with HN_AUTOSCALE. Entirely bogus. 282 */ 283 (void)memset(buf, 0, sizeof(buf)); 284 285 rv = humanize_number(buf, sizeof(buf), 10000, "", 286 HN_AUTOSCALE, HN_NOSPACE); 287 288 ATF_REQUIRE(rv != -1); 289 ATF_REQUIRE(strcmp(buf, "0%d%s%d%s%s%s") != 0); 290 /* 291 * PR lib/54053: before version 1.18 the output was nonsense 292 * with HN_AUTOSCALE and a buffer big enough to not need scaling 293 */ 294 ATF_REQUIRE(strcmp(buf, "10000") == 0); 295 296 /* 297 * Tight buffer. 298 * 299 * The man page says that len must be at least 4. 300 * 3 works, but anything less that will not. This 301 * is because baselen starts with 2 for positive 302 * numbers. 303 */ 304 (void)memset(buf, 0, sizeof(buf)); 305 306 rv = humanize_number(buf, 3, 1, "", HN_AUTOSCALE, HN_NOSPACE); 307 308 ATF_REQUIRE(rv != -1); 309 } 310 311 ATF_TP_ADD_TCS(tp) 312 { 313 314 ATF_TP_ADD_TC(tp, humanize_number_basic); 315 ATF_TP_ADD_TC(tp, humanize_number_big); 316 317 return atf_no_error(); 318 } 319
Indexes created Sun Sep 21 15:09:59 GMT 2025