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vi: failure to open file is not an error when initialising buffer

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Commit 32afd3a introduced these regressions on the master branch:

Starting vi with no filename on the command line gives the status message
"'(null)' Bad address" instead of "- No file 1/1 100%".

Starting vi with a non-existent file on the command line gives the status
message "'new.txt' No such file or directory" instead of "- new.txt 1/1 100%"

Signed-off-by: Ron Yorston <rmy@tigress.co.uk>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Ron Yorston 2014-11-30 20:39:25 +00:00 committed by Denys Vlasenko
parent 08364dab75
commit e5213cee38
1 changed files with 5 additions and 7 deletions
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10
editors/vi.c
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@ -542,9 +542,6 @@ static void cookmode(void); // return to "cooked" mode on tty
static int mysleep(int); static int mysleep(int);
static int readit(void); // read (maybe cursor) key from stdin static int readit(void); // read (maybe cursor) key from stdin
static int get_one_char(void); // read 1 char from stdin static int get_one_char(void); // read 1 char from stdin
#if !ENABLE_FEATURE_VI_READONLY
#define file_insert(fn, p, update_ro_status) file_insert(fn, p)
#endif
// file_insert might reallocate text[]! // file_insert might reallocate text[]!
static int file_insert(const char *, char *, int); static int file_insert(const char *, char *, int);
static int file_write(char *, char *, char *); static int file_write(char *, char *, char *);
@ -1325,7 +1322,7 @@ static void colon(char *buf)
q = next_line(q); q = next_line(q);
{ // dance around potentially-reallocated text[] { // dance around potentially-reallocated text[]
uintptr_t ofs = q - text; uintptr_t ofs = q - text;
size = file_insert(fn, q, /*update_ro:*/ 0); size = file_insert(fn, q, 0);
q = text + ofs; q = text + ofs;
} }
if (size < 0) if (size < 0)
@ -2905,7 +2902,7 @@ static char *get_input_line(const char *prompt)
} }
// might reallocate text[]! // might reallocate text[]!
static int file_insert(const char *fn, char *p, int update_ro_status) static int file_insert(const char *fn, char *p, int initial)
{ {
int cnt = -1; int cnt = -1;
int fd, size; int fd, size;
@ -2918,6 +2915,7 @@ static int file_insert(const char *fn, char *p, int update_ro_status)
fd = open(fn, O_RDONLY); fd = open(fn, O_RDONLY);
if (fd < 0) { if (fd < 0) {
if (!initial)
status_line_bold_errno(fn); status_line_bold_errno(fn);
return cnt; return cnt;
} }
@ -2946,7 +2944,7 @@ static int file_insert(const char *fn, char *p, int update_ro_status)
close(fd); close(fd);
#if ENABLE_FEATURE_VI_READONLY #if ENABLE_FEATURE_VI_READONLY
if (update_ro_status if (initial
&& ((access(fn, W_OK) < 0) || && ((access(fn, W_OK) < 0) ||
/* root will always have access() /* root will always have access()
* so we check fileperms too */ * so we check fileperms too */