DragonFly On-Line Manual Pages
OPENPAM_READLINEV(3) DragonFly Library Functions Manual OPENPAM_READLINEV(3)
openpam_readlinev -- read a line from a file and split it into words
openpam_readlinev(FILE *f, int *lineno, int *lenp);
The openpam_readlinev() function reads a line from a file, splits it into
words according to the rules described in the openpam_readword(3) manual
page, and returns a list of those words.
If lineno is not NULL, the integer variable it points to is incremented
every time a newline character is read. This includes quoted or escaped
newline characters and the newline character at the end of the line.
If lenp is not NULL, the number of words on the line is stored in the
variable to which it points.
If successful, the openpam_readlinev() function returns a pointer to a
dynamically allocated array of pointers to individual dynamically
allocated NUL-terminated strings, each containing a single word, in the
order in which they were encountered on the line. The array is
terminated by a NULL pointer.
The caller is responsible for freeing both the array and the individual
strings by passing each of them to free(3).
If the end of the line was reached before any words were read,
openpam_readlinev() returns a pointer to a dynamically allocated array
containing a single NULL pointer.
The openpam_readlinev() function can fail and return NULL for one of four
o The end of the file was reached before any words were read; errno is
zero, ferror(3) returns zero, and feof(3) returns a non-zero value.
o The end of the file was reached while a quote or backslash escape was
in effect; errno is set to EINVAL, ferror(3) returns zero, and
feof(3) returns a non-zero value.
o An error occurred while reading from the file; errno is non-zero,
ferror(3) returns a non-zero value and feof(3) returns zero.
o A malloc(3) or realloc(3) call failed; errno is set to ENOMEM,
ferror(3) returns a non-zero value, and feof(3) may or may not return
a non-zero value.
openpam_readline(3), openpam_readword(3), pam(3)
The openpam_readlinev() function is an OpenPAM extension.
The openpam_readlinev() function and this manual page were developed by
Dag-Erling Smorgrav <firstname.lastname@example.org>.
DragonFly 5.3 April 30, 2017 DragonFly 5.3