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MFV: cherry-pick "PR/358: Fix width for -f - (jpalus)"

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MFC after:	1 week
PR:		bin/266264
This commit is contained in:
Xin LI 2022-09-06 23:31:20 -07:00
commit bced4d8b3e
1 changed files with 29 additions and 17 deletions
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46
contrib/file/src/file.c
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@ -32,7 +32,7 @@
#include "file.h" #include "file.h"
#ifndef lint #ifndef lint
FILE_RCSID("@(#)$File: file.c,v 1.195 2022/06/02 15:45:43 christos Exp $") FILE_RCSID("@(#)$File: file.c,v 1.196 2022/07/04 17:00:51 christos Exp $")
#endif /* lint */ #endif /* lint */
#include "magic.h" #include "magic.h"
@ -506,35 +506,47 @@ unwrap(struct magic_set *ms, const char *fn)
size_t llen = 0; size_t llen = 0;
int wid = 0, cwid; int wid = 0, cwid;
int e = 0; int e = 0;
size_t fi = 0, fimax = 100;
char **flist = malloc(sizeof(*flist) * fimax);
if (strcmp("-", fn) == 0) { if (flist == NULL)
out: file_err(EXIT_FAILURE, "Cannot allocate memory for file list");
if (strcmp("-", fn) == 0)
f = stdin; f = stdin;
wid = 1; else {
} else {
if ((f = fopen(fn, "r")) == NULL) { if ((f = fopen(fn, "r")) == NULL) {
file_warn("Cannot open `%s'", fn); file_warn("Cannot open `%s'", fn);
return 1; return 1;
} }
while ((len = getline(&line, &llen, f)) > 0) {
if (line[len - 1] == '\n')
line[len - 1] = '\0';
cwid = file_mbswidth(ms, line);
if (cwid > wid)
wid = cwid;
}
rewind(f);
} }
while ((len = getline(&line, &llen, f)) > 0) { while ((len = getline(&line, &llen, f)) > 0) {
if (line[len - 1] == '\n') if (line[len - 1] == '\n')
line[len - 1] = '\0'; line[len - 1] = '\0';
e |= process(ms, line, wid); if (fi >= fimax) {
fimax += 100;
char **nf = realloc(flist, fimax * sizeof(*flist));
if (nf == NULL)
goto out;
}
flist[fi++] = line;
cwid = file_mbswidth(ms, line);
if (cwid > wid)
wid = cwid;
line = NULL;
llen = 0;
} }
free(line); fimax = fi;
(void)fclose(f); for (fi = 0; fi < fimax; fi++) {
e |= process(ms, flist[fi], wid);
free(flist[fi]);
}
free(flist);
if (f != stdin)
(void)fclose(f);
return e; return e;
} }