/* $OpenBSD: mkstr.c,v 1.8 2003/06/03 02:56:13 millert Exp $ */ /* $NetBSD: mkstr.c,v 1.4 1995/09/28 06:22:20 tls Exp $ */ /* * Copyright (c) 1980, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint static const char copyright[] = "@(#) Copyright (c) 1980, 1993\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint #if 0 static const char sccsid[] = "@(#)mkstr.c 8.1 (Berkeley) 6/6/93"; #else static const char rcsid[] = "$OpenBSD: mkstr.c,v 1.8 2003/06/03 02:56:13 millert Exp $"; #endif #endif /* not lint */ #include #include #include #include #include #include #define ungetchar(c) ungetc(c, stdin) /* * mkstr - create a string error message file by massaging C source * * Bill Joy UCB August 1977 * * Modified March 1978 to hash old messages to be able to recompile * without addding messages to the message file (usually) * * Based on an earlier program conceived by Bill Joy and Chuck Haley * * Program to create a string error message file * from a group of C programs. Arguments are the name * of the file where the strings are to be placed, the * prefix of the new files where the processed source text * is to be placed, and the files to be processed. * * The program looks for 'error("' in the source stream. * Whenever it finds this, the following characters from the '"' * to a '"' are replaced by 'seekpt' where seekpt is a * pointer into the error message file. * If the '(' is not immediately followed by a '"' no change occurs. * * The optional '-' causes strings to be added at the end of the * existing error message file for recompilation of single routines. */ FILE *mesgread, *mesgwrite; char name[MAXPATHLEN], *np; void inithash(void); void process(void); int match(char *); void copystr(void); int octdigit(char); unsigned int hashit(char *, char, unsigned int); int fgetNUL(char *, int, FILE *); __dead void usage(void); int main(int argc, char **argv) { size_t n; char addon = 0; argc--, argv++; if (argc > 1 && argv[0][0] == '-') addon++, argc--, argv++; if (argc < 3) usage(); mesgwrite = fopen(argv[0], addon ? "a" : "w"); if (mesgwrite == NULL) perror(argv[0]), exit(1); mesgread = fopen(argv[0], "r"); if (mesgread == NULL) perror(argv[0]), exit(1); inithash(); argc--, argv++; if ((n = strlcpy(name, argv[0], sizeof(name))) >= sizeof(name)) errx(1, "%s too long", argv[0]); np = name + n; argc--, argv++; do { if (strlcpy(np, argv[0], sizeof(name) - n) >= sizeof(name) - n) errx(1, "%s too long", argv[0]); if (freopen(name, "w", stdout) == NULL) perror(name), exit(1); if (freopen(argv[0], "r", stdin) == NULL) perror(argv[0]), exit(1); process(); argc--, argv++; } while (argc > 0); exit (0); } void process(void) { int c; for (;;) { c = getchar(); if (c == EOF) return; if (c != 'e') { putchar(c); continue; } if (match("error(")) { printf("error("); c = getchar(); if (c != '"') putchar(c); else copystr(); } } } int match(char *ocp) { char *cp; int c; for (cp = ocp + 1; *cp; cp++) { c = getchar(); if (c != *cp) { while (ocp < cp) putchar(*ocp++); ungetchar(c); return (0); } } return (1); } void copystr(void) { int c, ch; char buf[512]; char *cp = buf; for (;;) { c = getchar(); if (c == EOF) break; switch (c) { case '"': *cp++ = 0; goto out; case '\\': c = getchar(); switch (c) { case 'b': c = '\b'; break; case 't': c = '\t'; break; case 'r': c = '\r'; break; case 'n': c = '\n'; break; case '\n': continue; case 'f': c = '\f'; break; case '0': c = 0; break; case '\\': break; default: if (!octdigit(c)) break; c -= '0'; ch = getchar(); if (!octdigit(ch)) break; c <<= 7, c += ch - '0'; ch = getchar(); if (!octdigit(ch)) break; c <<= 3, c+= ch - '0', ch = -1; break; } } *cp++ = c; } out: *cp = 0; printf("%d", hashit(buf, 1, 0)); } int octdigit(char c) { return (c >= '0' && c <= '7'); } void inithash(void) { char buf[512]; int mesgpt = 0; rewind(mesgread); while (fgetNUL(buf, sizeof buf, mesgread) != 0) { hashit(buf, 0, mesgpt); mesgpt += strlen(buf) + 2; } } #define NBUCKETS 511 struct hash { long hval; unsigned int hpt; struct hash *hnext; } *bucket[NBUCKETS]; unsigned int hashit(char *str, char really, unsigned int fakept) { int i; struct hash *hp; char buf[512]; long hashval = 0; char *cp; if (really) fflush(mesgwrite); for (cp = str; *cp;) hashval = (hashval << 1) + *cp++; i = hashval % NBUCKETS; if (i < 0) i += NBUCKETS; if (really != 0) for (hp = bucket[i]; hp != 0; hp = hp->hnext) if (hp->hval == hashval) { fseek(mesgread, (long) hp->hpt, 0); fgetNUL(buf, sizeof buf, mesgread); #ifdef DEBUG fprintf(stderr, "Got (from %d) %s\n", hp->hpt, buf); #endif if (strcmp(buf, str) == 0) break; } if (!really || hp == 0) { if ((hp = (struct hash *) calloc(1, sizeof *hp)) == NULL) err(1, "calloc"); hp->hnext = bucket[i]; hp->hval = hashval; hp->hpt = really ? ftell(mesgwrite) : fakept; if (really) { fwrite(str, sizeof (char), strlen(str) + 1, mesgwrite); fwrite("\n", sizeof (char), 1, mesgwrite); } bucket[i] = hp; } #ifdef DEBUG fprintf(stderr, "%s hashed to %ld at %d\n", str, hp->hval, hp->hpt); #endif return (hp->hpt); } int fgetNUL(char *obuf, int rmdr, FILE *file) { int c; char *buf = obuf; while (--rmdr > 0 && (c = getc(file)) != 0 && c != EOF) *buf++ = c; *buf++ = 0; getc(file); return ((feof(file) || ferror(file)) ? 0 : 1); } __dead void usage(void) { extern char *__progname; fprintf(stderr, "usage: %s [-] mesgfile prefix file ...\n", __progname); exit(1); }