| #ifndef NON_UNIX_STDIO |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #endif |
| #include "f2c.h" |
| #include "fio.h" |
| #include <string.h> |
| #include "rawio.h" |
| |
| #ifdef KR_headers |
| extern char *malloc(), *mktemp(); |
| extern integer f_clos(); |
| #else |
| #undef abs |
| #undef min |
| #undef max |
| #include <stdlib.h> |
| extern int f__canseek(FILE*); |
| extern integer f_clos(cllist*); |
| #endif |
| |
| #ifdef NON_ANSI_RW_MODES |
| char *f__r_mode[2] = {"r", "r"}; |
| char *f__w_mode[4] = {"w", "w", "r+w", "r+w"}; |
| #else |
| char *f__r_mode[2] = {"rb", "r"}; |
| char *f__w_mode[4] = {"wb", "w", "r+b", "r+"}; |
| #endif |
| |
| #ifdef KR_headers |
| f__isdev(s) char *s; |
| #else |
| f__isdev(char *s) |
| #endif |
| { |
| #ifdef NON_UNIX_STDIO |
| int i, j; |
| |
| i = open(s,O_RDONLY); |
| if (i == -1) |
| return 0; |
| j = isatty(i); |
| close(i); |
| return j; |
| #else |
| struct stat x; |
| |
| if(stat(s, &x) == -1) return(0); |
| #ifdef S_IFMT |
| switch(x.st_mode&S_IFMT) { |
| case S_IFREG: |
| case S_IFDIR: |
| return(0); |
| } |
| #else |
| #ifdef S_ISREG |
| /* POSIX version */ |
| if(S_ISREG(x.st_mode) || S_ISDIR(x.st_mode)) |
| return(0); |
| else |
| #else |
| Help! How does stat work on this system? |
| #endif |
| #endif |
| return(1); |
| #endif |
| } |
| #ifdef KR_headers |
| integer f_open(a) olist *a; |
| #else |
| integer f_open(olist *a) |
| #endif |
| { unit *b; |
| integer rv; |
| char buf[256], *s; |
| cllist x; |
| int ufmt; |
| #ifdef NON_UNIX_STDIO |
| FILE *tf; |
| #else |
| int n; |
| struct stat stb; |
| #endif |
| if(f__init != 1) f_init(); |
| if(a->ounit>=MXUNIT || a->ounit<0) |
| err(a->oerr,101,"open"); |
| f__curunit = b = &f__units[a->ounit]; |
| if(b->ufd) { |
| if(a->ofnm==0) |
| { |
| same: if (a->oblnk) |
| b->ublnk = *a->oblnk == 'z' || *a->oblnk == 'Z'; |
| return(0); |
| } |
| #ifdef NON_UNIX_STDIO |
| if (b->ufnm |
| && strlen(b->ufnm) == a->ofnmlen |
| && !strncmp(b->ufnm, b->ufnm, (unsigned)a->ofnmlen)) |
| goto same; |
| #else |
| g_char(a->ofnm,a->ofnmlen,buf); |
| if (f__inode(buf,&n) == b->uinode && n == b->udev) |
| goto same; |
| #endif |
| x.cunit=a->ounit; |
| x.csta=0; |
| x.cerr=a->oerr; |
| if ((rv = f_clos(&x)) != 0) |
| return rv; |
| } |
| b->url = (int)a->orl; |
| b->ublnk = a->oblnk && (*a->oblnk == 'z' || *a->oblnk == 'Z'); |
| if(a->ofm==0) |
| { if(b->url>0) b->ufmt=0; |
| else b->ufmt=1; |
| } |
| else if(*a->ofm=='f' || *a->ofm == 'F') b->ufmt=1; |
| else b->ufmt=0; |
| ufmt = b->ufmt; |
| #ifdef url_Adjust |
| if (b->url && !ufmt) |
| url_Adjust(b->url); |
| #endif |
| if (a->ofnm) { |
| g_char(a->ofnm,a->ofnmlen,buf); |
| if (!buf[0]) |
| err(a->oerr,107,"open"); |
| } |
| else |
| sprintf(buf, "fort.%ld", a->ounit); |
| b->uscrtch = 0; |
| switch(a->osta ? *a->osta : 'u') |
| { |
| case 'o': |
| case 'O': |
| #ifdef NON_UNIX_STDIO |
| if(access(buf,0)) |
| #else |
| if(stat(buf,&stb)) |
| #endif |
| err(a->oerr,errno,"open"); |
| break; |
| case 's': |
| case 'S': |
| b->uscrtch=1; |
| #ifdef _POSIX_SOURCE |
| tmpnam(buf); |
| #else |
| (void) strcpy(buf,"tmp.FXXXXXX"); |
| (void) mktemp(buf); |
| #endif |
| goto replace; |
| case 'n': |
| case 'N': |
| #ifdef NON_UNIX_STDIO |
| if(!access(buf,0)) |
| #else |
| if(!stat(buf,&stb)) |
| #endif |
| err(a->oerr,128,"open"); |
| /* no break */ |
| case 'r': /* Fortran 90 replace option */ |
| case 'R': |
| replace: |
| #ifdef NON_UNIX_STDIO |
| if (tf = fopen(buf,f__w_mode[0])) |
| fclose(tf); |
| #else |
| (void) close(creat(buf, 0666)); |
| #endif |
| } |
| |
| b->ufnm=(char *) malloc((unsigned int)(strlen(buf)+1)); |
| if(b->ufnm==NULL) err(a->oerr,113,"no space"); |
| (void) strcpy(b->ufnm,buf); |
| b->uend=0; |
| b->uwrt = 0; |
| #ifdef NON_UNIX_STDIO |
| if ((s = a->oacc) && (*s == 'd' || *s == 'D')) |
| ufmt = 0; |
| #endif |
| if(f__isdev(buf)) |
| { b->ufd = fopen(buf,f__r_mode[ufmt]); |
| if(b->ufd==NULL) err(a->oerr,errno,buf); |
| } |
| else { |
| if(!(b->ufd = fopen(buf, f__r_mode[ufmt]))) { |
| #ifdef NON_UNIX_STDIO |
| if (b->ufd = fopen(buf, f__w_mode[ufmt|2])) |
| b->uwrt = 2; |
| else if (b->ufd = fopen(buf, f__w_mode[ufmt])) |
| b->uwrt = 1; |
| else |
| #else |
| if ((n = open(buf,O_WRONLY)) >= 0) |
| b->uwrt = 2; |
| else { |
| n = creat(buf, 0666); |
| b->uwrt = 1; |
| } |
| if (n < 0 |
| || (b->ufd = fdopen(n, f__w_mode[ufmt])) == NULL) |
| #endif |
| err(a->oerr, errno, "open"); |
| } |
| } |
| b->useek=f__canseek(b->ufd); |
| #ifndef NON_UNIX_STDIO |
| if((b->uinode=f__inode(buf,&b->udev))==-1) |
| err(a->oerr,108,"open"); |
| #endif |
| if(b->useek) |
| if (a->orl) |
| rewind(b->ufd); |
| else if ((s = a->oacc) && (*s == 'a' || *s == 'A') |
| && fseek(b->ufd, 0L, SEEK_END)) |
| err(a->oerr,129,"open"); |
| return(0); |
| } |
| #ifdef KR_headers |
| fk_open(seq,fmt,n) ftnint n; |
| #else |
| fk_open(int seq, int fmt, ftnint n) |
| #endif |
| { char nbuf[10]; |
| olist a; |
| int rtn; |
| int save_init; |
| |
| (void) sprintf(nbuf,"fort.%ld",n); |
| a.oerr=1; |
| a.ounit=n; |
| a.ofnm=nbuf; |
| a.ofnmlen=strlen(nbuf); |
| a.osta=NULL; |
| a.oacc= seq==SEQ?"s":"d"; |
| a.ofm = fmt==FMT?"f":"u"; |
| a.orl = seq==DIR?1:0; |
| a.oblnk=NULL; |
| save_init = f__init; |
| f__init &= ~2; |
| rtn = f_open(&a); |
| f__init = save_init | 1; |
| return rtn; |
| } |